Intelligent Datagrid column
Anyone would have an idea for this wish :
I'm populating a datagrid with a Mysql request. But in the
first column I would like to display the row number and not having
it read from the database field but generated automatically each
time the table is filled again ?
Thanks
Why not just manually add the column yourself before you
assign the result set to the grid's dataprovider? It's just a
simple for loop.
Similar Messages
-
Need help adding image to datagrid column
Hi,
Can anyone tell me how to add an image to a datagrid column?
I have created a flex library project which contains a mxml component with a datagrid, an item renderer mxml component which rendered the image within the datagrid column depending on the value coming back from the database for that column and a folder 'assets' which hold all the images. When I add the library to my main project and call the mxml component with the datagrid an image place holder is visible in the datagrid column but not the image. However, if I take the image out of the library project and added to an 'assets' folder in the main project the image is displayed in the datagrid column.
It looks like, even though the images are in the flex library project and only the flex library project is trying to display the images in the datagrid, the library project is looking in the main application project folder for the image.
Does anyone know why this is happening and how to fix it?
Thanks in advance for an help,
Xander.I have tried embedding the images in my library but it still didn't work. Also I can't embed the image as I'm using the value of the column to complete the image name, for example in my mxml item renderer component I have the added the following code
<mx:Image source="@Embed(source='assets/' + data.mycolumnvalue + '.png')" tooltip="{data.mycolumnvalue}"/>
but nothing is displayed. -
How do I show an image in a DataGrid column?
I'm not sure that this is possible. I would like to show an
image in a datagrid column based on the data that the grid is bound
to. Is there any way to do this? I'm using Beta 3.
Thanks!Yes, you need a custom itemRenderer. This can be inline or a
custom class.
Tracy -
Center text in Datagrid columns
Hi all,
I need help vertically centering text in a datagrid column.
Does anyone know of a way to do this without custom item
Renderers?Would really need to see the code to see the extent of the damage Photoshop html has caused. This is a typical problem when exporting html from Photoshop OR trying to assemble the slices into one gigantic table where the cells have been split and merged numerous times which causes distortion.
The idea, looking at your page, would be to insert a simple 3 column x 1 row table into Dreamweaver then insert the components that make up your page into their realtive columns. Using this simple construction method will ensure that all the page elements remain seperate and cannot interact with other element in different cells, which is what is NOT happening in your construction at the moment. -
Flex 3: DataGrid Column width on resize
Hello experts,
I am facing an issue with width of DataGrid columns. We are using Flex 3.2.
I am setting the widths for columns in creationComplete handler of DataGrid. When the browser window is resized, say restore down and then maximize,
the column widths are changing. Please find the code below:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" height="100%" width="100%">
<mx:Script>
<![CDATA[
import mx.core.ScrollPolicy;
[Bindable]
private var isVisible:Boolean = true;
private function creationCompleteHandler():void{
dataGrid.horizontalScrollPolicy = ScrollPolicy.ON;
artist.width = dataGrid.width * 0.40;
album.width = dataGrid.width * 0.50;
Price.width = dataGrid.width * 0.10;
dataGrid.horizontalScrollPolicy = ScrollPolicy.OFF;
]]>
</mx:Script>
<mx:DataGrid id="dataGrid" width="80%" height="100%" creationComplete="creationCompleteHandler()">
<mx:ArrayCollection>
<mx:Object Artist="Pavement" Price="11.99"
Album="Slanted and Enchanted" />
<mx:Object Artist="Pavement"
Album="Brighten the Corners" Price="11.99" />
</mx:ArrayCollection>
<mx:columns>
<mx:DataGridColumn id="artist" dataField="Artist"/>
<mx:DataGridColumn id="album" dataField="Album" visible="{isVisible}"/>
<mx:DataGridColumn id="Price" dataField="Price" />
</mx:columns>
</mx:DataGrid>
</mx:Application>
Is there anything wrong i am doing here? Please help me in resolving this.
Thanks,
SrilathaHi Srilatha,
DataGrid width is 100% and the main application width also 100%, So the
DataGrid will try to occupy the whole window, when you do "restore down" &
"maximize" Application width will change.. and it will effect DataGrid and
its columns also. Try to give some fixed width for dataGrid and you can
expect the result.
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"
height="100%" width="100%">
<mx:Script>
<![CDATA[
import mx.core.ScrollPolicy;
private var isVisible:Boolean = true;
private function creationCompleteHandler():void
dataGrid.horizontalScrollPolicy = ScrollPolicy.ON;
artist.width = dataGrid.width * 0.40;
album.width = dataGrid.width * 0.50;
Price.width = dataGrid.width * 0.10;
dataGrid.horizontalScrollPolicy = ScrollPolicy.OFF;
]]>
</mx:Script>
<mx:DataGrid id="dataGrid" width="500" height="100%"
creationComplete="creationCompleteHandler()">
<mx:ArrayCollection>
<mx:Object Artist="Pavement" Price="11.99"
Album="Slanted and Enchanted" />
<mx:Object Artist="Pavement"
Album="Brighten the Corners" Price="11.99" />
</mx:ArrayCollection>
<mx:columns>
<mx:DataGridColumn id="artist" dataField="Artist"/>
<mx:DataGridColumn id="album" dataField="Album"
visible=""/>
<mx:DataGridColumn id="Price" dataField="Price" />
</mx:columns>
</mx:DataGrid>
</mx:Application>
Thanks
Pradeep Reddy -
How can I get this example to wok with <mx:HTTPService>
insead of the inline <mx:XML> ?
Dynamic DataGrid columns
Example of how to dynamically create DataGridColumns
A completely dynamic DataGrid example.
This example uses the xml from the Flexstore example. It
examines the first product node and uses that to create the
definitions for the columns. There is some example logic to change
the columns properties.
It then instantiates the GataGrid and its columns array,
assigns the properties, and then the dataProvider, and then adds
the dataGrid to the application container.
The example is fully self-contained, since a portion of the
catalog.xml file is included in the mxml.
<?xml version="1.0" encoding="utf-8"?>
<!-- This example uses the dataProvider to build the
dataGrid columns dynamically -->
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="vertical"
creationComplete="initApp()">
<mx:Script><![CDATA[
import mx.controls.dataGridClasses.DataGridColumn;
import mx.controls.DataGrid;
import mx.collections.XMLListCollection;
import mx.controls.Alert;
[Bindable]
private var _xlcCatalog:XMLListCollection; //the
dataProvider for the DG
//run by creationComplete
public function initApp():void
_xlcCatalog = new XMLListCollection(xmlCatalog.product);
//wrap the XML product nodes in an XMLListCollection
buildDG(); //creates the dataGrid
}//initApp
private function buildDG():void
var aColumnDef:Array = getColumnDefArray(); //returns a
noraml array of objects that specify DtaGridColumn properties
var oColumnDef:Object;
var dg:DataGrid = new DataGrid; //instantiate a new DataGrid
var dgc:DataGridColumn;
var aColumnsNew:Array = dg.columns
var iTotalDGWidth:int = 0;
for (var i:int=0;i<aColumnDef.length;i++) { //loop over
the column definition array
oColumnDef = aColumnDef
dgc = new DataGridColumn(); //instantiate a new
DataGridColumn
dgc.dataField = oColumnDef.dataField; //start setting the
properties from the column def array
dgc.width = oColumnDef.width;
iTotalDGWidth += dgc.width; //add up the column widths
dgc.editable = oColumnDef.editable;
dgc.sortable = oColumnDef.sortable
dgc.visible = oColumnDef.visible;
dgc.wordWrap = oColumnDef.wordWrap;
aColumnsNew.push(dgc) //push the new dataGridColumn onto the
array
dg.columns = aColumnsNew; //assign the array back to the
dtaGrid
dg.editable = true;
dg.width = iTotalDGWidth;
dg.dataProvider = _xlcCatalog; //set the dataProvider
this.addChild(dg); //add the dataGrid to the application
}//buildDG
//uses the first product node to define the columns
private function getColumnDefArray():Array
//Alert.show("colcount:" + xmlCatalog.toXMLString());
var aColumns:Array = new Array();
var node0:XML = xmlCatalog.product[0]; //get the first
"product" node
var xlColumns:XMLList = node0.children(); //get its child
nodes (columns) as an XMLList
var xmlColumn:XML
var oColumnDef:Object;
for (var i:int=0;i<xlColumns.length();i++) { //loop over
the xmlList
xmlColumn = xlColumns;
oColumnDef = new Object();
oColumnDef.dataField = xmlColumn.localName(); //make the
dataField be the node name
switch (oColumnDef.dataField) { //conditional column
property logic
case "name":
oColumnDef.width = 80;
oColumnDef.sortable = false;
oColumnDef.visible = true;
oColumnDef.editable = false;
oColumnDef.wordWrap = false;
break;
case "description":
oColumnDef.width = 200;
oColumnDef.sortable = false;
oColumnDef.visible = true;
oColumnDef.editable = false;
oColumnDef.wordWrap = true;
break;
case "price":
oColumnDef.width = 40;
oColumnDef.sortable = true;
oColumnDef.visible = true;
oColumnDef.editable = true;
oColumnDef.wordWrap = false;
break;
case "image":
oColumnDef.width = 100;
oColumnDef.sortable = false;
oColumnDef.visible = false;
oColumnDef.editable = false;
oColumnDef.wordWrap = false;
break;
default:
oColumnDef.width = 50;
oColumnDef.sortable = true;
oColumnDef.visible = true;
oColumnDef.editable = false;
oColumnDef.wordWrap = false;
break;
aColumns.push(oColumnDef);
return aColumns; //return the array
}//getColumnDefArray
]]></mx:Script>
<mx:XML id="xmlCatalog">
<catalog>
<product productId="1">
<name>Nokia 6010</name>
<description>Easy to use without sacrificing style,
the Nokia 6010 phone offers functional voice communication
supported by text messaging, multimedia messaging, mobile internet,
games and more</description>
<price>99.99</price>
<image>assets/pic/Nokia_6010.gif</image>
<series>6000</series>
<triband>false</triband>
<camera>false</camera>
<video>false</video>
<highlight1>MMS</highlight1>
<highlight2>Large color display</highlight2>
</product>
<product productId="2">
<name>Nokia 3100 Blue</name>
<description>Light up the night with a
glow-in-the-dark cover - when it's charged with light you can
easily find your phone in the dark. When you get a call, the Nokia
3100 phone flashes in tune with your ringing tone. And when you
snap on a Nokia Xpress-on™ gaming cover*, you'll get
luminescent light effects in time to the gaming
action.</description>
<price>139</price>
<image>assets/pic/Nokia_3100_blue.gif</image>
<series>3000</series>
<triband>true</triband>
<camera>false</camera>
<video>false</video>
<highlight1>Glow-in-the-dark</highlight1>
<highlight2>Flashing lights</highlight2>
</product>
<product productId="3">
<name>Nokia 3100 Pink</name>
<description>Light up the night with a
glow-in-the-dark cover - when it's charged with light you can
easily find your phone in the dark. When you get a call, the Nokia
3100 phone flashes in tune with your ringing tone. And when you
snap on a Nokia Xpress-on™ gaming cover*, you'll get
luminescent light effects in time to the gaming
action.</description>
<price>139</price>
<image>assets/pic/Nokia_3100_pink.gif</image>
<series>3000</series>
<triband>true</triband>
<camera>false</camera>
<video>false</video>
<highlight1>Glow-in-the-dark</highlight1>
<highlight2>Flashing lights</highlight2>
</product>
<product productId="4">
<name>Nokia 3120</name>
<description>Designed for both business and pleasure,
the elegant Nokia 3120 phone offers a pleasing mix of features.
Enclosed within its chic, compact body, you will discover the
benefits of tri-band compatibility, a color screen, MMS, XHTML
browsing, cheerful screensavers, and much more.</description>
<price>159.99</price>
<image>assets/pic/Nokia_3120.gif</image>
<series>3000</series>
<triband>true</triband>
<camera>false</camera>
<video>false</video>
<highlight1>Multimedia messaging</highlight1>
<highlight2>Animated screensavers</highlight2>
</product>
<product productId="5">
<name>Nokia 3220</name>
<description>The Nokia 3220 phone is a fresh new cut
on some familiar ideas - animate your MMS messages with cute
characters, see the music with lights that flash in time with your
ringing tone, download wallpapers and screensavers with matching
color schemes for the interface.</description>
<price>159.99</price>
<image>assets/pic/Nokia_3220.gif</image>
<series>3000</series>
<triband>false</triband>
<camera>true</camera>
<video>false</video>
<highlight1>MIDI tones</highlight1>
<highlight2>Cut-out covers</highlight2>
</product>
</catalog>
</mx:XML>
</mx:Application>It should work the same way.
What problem are you having?
Tracy -
How not to sort datagrid column on double click
Hello,
I am currently building an application containing a datagrid for data representation. I've created a custom datagridheader in order to add a input text for filtering the columns (see code below).
My goal is to hide the textinput, and then show it on a double click on the header. So i would like to know how to avoid the sort of this column each time i double click.?
<?xml version="1.0" encoding="utf-8"?>
<s:GridItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx" resize="onColumnResize(event)" clipAndEnableScrolling="true" doubleClick="managefilterField(event)">
<fx:Declarations>
<!--- The default value of the <code>sortIndicator</code> property.
It must be an IFactory for an IVisualElement.
<p>This value is specified in a <code>fx:Declaration</code> block and can be overridden
by a declaration with <code>id="defaultSortIndicator"</code>
in an MXML subclass.</p>
@langversion 3.0
@playerversion Flash 10
@playerversion AIR 2.0
@productversion Flex 4.5
-->
<fx:Component id="defaultSortIndicator">
<s:Path data="M 3.5 7.0 L 0.0 0.0 L 7.0 0.0 L 3.5 7.0" implements="spark.components.gridClasses.IGridVisualElement">
<fx:Script>
<![CDATA[
import spark.components.DataGrid;
import spark.components.Grid;
* @private
public function prepareGridVisualElement(grid:Grid, rowIndex:int, columnIndex:int):void
const dataGrid:DataGrid = grid.dataGrid;
if (!dataGrid)
return;
const color:uint = dataGrid.getStyle("symbolColor");
arrowFill1.color = color;
arrowFill2.color = color;
]]>
</fx:Script>
<s:fill>
<s:RadialGradient rotation="90" focalPointRatio="1">
<!--- @private -->
<s:GradientEntry id="arrowFill1" color="0" alpha="0.6" />
<!--- @private -->
<s:GradientEntry id="arrowFill2" color="0" alpha="0.8" />
</s:RadialGradient>
</s:fill>
</s:Path>
</fx:Component>
<!--- Displays the renderer's label property, which is set to the column's <code>headerText</code>.
It must be an instance of a <code>TextBase</code>, like <code>s:Label</code>.
<p>This visual element is added to the <code>labelDisplayGroup</code> by the renderer's
<code>prepare()</code> method. Any size/location constraints specified by the labelDisplay
define its location relative to the labelDisplayGroup.</p>
<p>This value is specified with a <code>fx:Declaration</code> and can be overridden
by a declaration with <code>id="labelDisplay"</code>
in an MXML subclass.</p>
@langversion 3.0
@playerversion Flash 10
@playerversion AIR 2.0
@productversion Flex 4.5
-->
<s:Label id="labelDisplay"
verticalCenter="1" left="0" right="0" top="0" bottom="0"
textAlign="start"
fontWeight="bold"
verticalAlign="middle"
maxDisplayedLines="1"
showTruncationTip="true" />
</fx:Declarations>
<fx:Script>
<![CDATA[
import net.awl.ismp.console.components.misc.FilterCriteria;
import net.awl.ismp.console.events.ColumnFilteredEvent;
import net.awl.ismp.console.events.ColumnResizedEvent;
import mx.events.ResizeEvent;
import spark.components.gridClasses.IGridVisualElement;
import mx.core.IVisualElement;
import spark.components.DataGrid;
import spark.components.GridColumnHeaderGroup;
import spark.components.gridClasses.GridColumn;
import spark.primitives.supportClasses.GraphicElement;
// chrome color constants and variables
private static const DEFAULT_COLOR_VALUE:uint = 0xCC;
private static const DEFAULT_COLOR:uint = 0xCCCCCC;
private static const DEFAULT_SYMBOL_COLOR:uint = 0x000000;
private static var colorTransform:ColorTransform = new ColorTransform();
* @private
private function dispatchChangeEvent(type:String):void
if (hasEventListener(type))
dispatchEvent(new Event(type));
protected function onColumnResize(event:ResizeEvent):void
dispatchEvent(new ColumnResizedEvent(ColumnResizedEvent.COLUMNRESIZED_EVT,this.width,this.column.columnInde x));
// maxDisplayedLines
private var _maxDisplayedLines:int = 1;
[Bindable("maxDisplayedLinesChanged")]
[Inspectable(minValue="-1")]
* The value of this property is used to initialize the
* <code>maxDisplayedLines</code> property of this renderer's
* <code>labelDisplay</code> element.
* @copy spark.components.supportClasses.TextBase#maxDisplayedLines
* @default 1
* @langversion 3.0
* @playerversion Flash 10
* @playerversion AIR 1.5
* @productversion Flex 4.5
public function get maxDisplayedLines():int
return _maxDisplayedLines;
override protected function stateChanged(oldState:String, newState:String, recursive:Boolean):void
trace("state changed from : "+oldState+" to "+newState);
super.stateChanged(oldState, newState, recursive);
* @private
public function set maxDisplayedLines(value:int):void
if (value == _maxDisplayedLines)
return;
_maxDisplayedLines = value;
if (labelDisplay)
labelDisplay.maxDisplayedLines = value;
invalidateSize();
invalidateDisplayList();
dispatchChangeEvent("maxDisplayedLinesChanged");
// sortIndicator
private var _sortIndicator:IFactory;
private var sortIndicatorInstance:IVisualElement;
[Bindable("sortIndicatorChanged")]
* A visual element that's displayed when the column is sorted.
* <p>The sortIndicator visual element is added to the <code>sortIndicatorGroup</code>
* by this renderer's <code>prepare()</code> method. Any size/location constraints
* specified by the sortIndicator define its location relative to the sortIndicatorGroup.</p>
* @default null
* @langversion 3.0
* @playerversion Flash 10
* @playerversion AIR 1.5
* @productversion Flex 4.5
public function get sortIndicator():IFactory
return (_sortIndicator) ? _sortIndicator : defaultSortIndicator;
* @private
public function set sortIndicator(value:IFactory):void
trace("setSortIndicator");
if (_sortIndicator == value)
return;
_sortIndicator = value;
if (sortIndicatorInstance)
sortIndicatorGroup.includeInLayout = false;
sortIndicatorGroup.removeElement(sortIndicatorInstance);
sortIndicatorInstance = null;
invalidateDisplayList();
dispatchChangeEvent("sortIndicatorChanged");
* @private
* Create and add the sortIndicator to the sortIndicatorGroup and the
* labelDisplay into the labelDisplayGroup.
override public function prepare(hasBeenRecycled:Boolean):void
trace("prepare !!");
super.prepare(hasBeenRecycled);
if (labelDisplay && labelDisplayGroup && (labelDisplay.parent != labelDisplayGroup))
labelDisplayGroup.removeAllElements();
labelDisplayGroup.addElement(labelDisplay);
trace(sortIndicator);
trace("sortIndicatorInstance : "+sortIndicatorInstance);
const column:GridColumn = this.column;
if (sortIndicator && column && column.grid && column.grid.dataGrid && column.grid.dataGrid.columnHeaderGroup)
const dataGrid:DataGrid = column.grid.dataGrid;
const columnHeaderGroup:GridColumnHeaderGroup = dataGrid.columnHeaderGroup;
if (columnHeaderGroup.isSortIndicatorVisible(column.columnIndex))
if (!sortIndicatorInstance)
sortIndicatorInstance = sortIndicator.newInstance();
sortIndicatorGroup.addElement(sortIndicatorInstance);
chromeColorChanged = true;
invalidateDisplayList();
// Initialize sortIndicator
sortIndicatorInstance.visible = true;
const gridVisualElement:IGridVisualElement = sortIndicatorInstance as IGridVisualElement;
if (gridVisualElement)
gridVisualElement.prepareGridVisualElement(column.grid, -1, column.columnIndex);
sortIndicatorGroup.includeInLayout = true;
sortIndicatorGroup.scaleY = (column.sortDescending) ? 1 : -1;
else
if (sortIndicatorInstance)
sortIndicatorGroup.removeElement(sortIndicatorInstance);
sortIndicatorGroup.includeInLayout = false;
sortIndicatorInstance = null;
private var chromeColorChanged:Boolean = false;
private var colorized:Boolean = false;
* @private
* Apply chromeColor style.
override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void
//trace("update display list");
// Apply chrome color
if (chromeColorChanged)
var chromeColor:uint = getStyle("chromeColor");
if (chromeColor != DEFAULT_COLOR || colorized)
colorTransform.redOffset = ((chromeColor & (0xFF << 16)) >> 16) - DEFAULT_COLOR_VALUE;
colorTransform.greenOffset = ((chromeColor & (0xFF << 8)) >> 8) - DEFAULT_COLOR_VALUE;
colorTransform.blueOffset = (chromeColor & 0xFF) - DEFAULT_COLOR_VALUE;
colorTransform.alphaMultiplier = alpha;
transform.colorTransform = colorTransform;
var exclusions:Array = [labelDisplay, sortIndicatorInstance];
// Apply inverse colorizing to exclusions
if (exclusions && exclusions.length > 0)
colorTransform.redOffset = -colorTransform.redOffset;
colorTransform.greenOffset = -colorTransform.greenOffset;
colorTransform.blueOffset = -colorTransform.blueOffset;
for (var i:int = 0; i < exclusions.length; i++)
var exclusionObject:Object = exclusions[i];
if (exclusionObject &&
(exclusionObject is DisplayObject ||
exclusionObject is GraphicElement))
colorTransform.alphaMultiplier = exclusionObject.alpha;
exclusionObject.transform.colorTransform = colorTransform;
colorized = true;
chromeColorChanged = false;
super.updateDisplayList(unscaledWidth, unscaledHeight);
* @private
override public function styleChanged(styleProp:String):void
var allStyles:Boolean = !styleProp || styleProp == "styleName";
super.styleChanged(styleProp);
if (allStyles || styleProp == "chromeColor")
chromeColorChanged = true;
invalidateDisplayList();
protected function managefilterField(event:MouseEvent):void
trace("double click sortIndicator : "+this.sortIndicatorInstance);
this.filterInput.visible=!this.filterInput.visible;
this.filterInput.includeInLayout=this.filterInput.visible;
this.filterSpacer.visible=this.filterInput.visible;
this.filterSpacer.includeInLayout=this.filterInput.visible;
if(!this.filterInput.visible)
this.filterInput.text="";
dispatchEvent(new ColumnFilteredEvent(ColumnFilteredEvent.COLUMNFILTERED_EVT,new FilterCriteria(this.column.dataField,this.filterInput.text)));
this.filterInput.setStyle("borderColor",0xFF6319);
this.filterInput.setStyle("focusColor",0xFF6319);
//this.filterInput.setStyle(
protected function onTextInputSelection(event:MouseEvent):void
event.stopImmediatePropagation();
this.filterInput.setStyle("borderColor",0xFF6319);
this.filterInput.setStyle("focusColor",0xFF6319);
protected function onKeyUp(event:KeyboardEvent):void
if(event.charCode==Keyboard.ENTER)
stage.focus=null;
protected function onFocusOut(event:FocusEvent):void
this.filterInput.setStyle("borderColor",0x00ff00);
this.filterInput.setStyle("focusColor",0x70B2EE);
dispatchEvent(new ColumnFilteredEvent(ColumnFilteredEvent.COLUMNFILTERED_EVT,new FilterCriteria(this.column.dataField,this.filterInput.text)));
]]>
</fx:Script>
<s:states>
<s:State name="normal" />
<s:State name="hovered" />
<s:State name="down" />
</s:states>
<!-- layer 1: shadow -->
<!--- @private -->
<s:Rect id="shadow" left="-1" right="-1" top="-1" bottom="-1" radiusX="2">
<s:fill>
<s:LinearGradient rotation="90">
<s:GradientEntry color="0x000000"
color.down="0xFFFFFF"
alpha="0.01"
alpha.down="0" />
<s:GradientEntry color="0x000000"
color.down="0xFFFFFF"
alpha="0.07"
alpha.down="0.5" />
</s:LinearGradient>
</s:fill>
</s:Rect>
<!-- layer 2: fill -->
<!--- @private -->
<s:Rect id="fill" left="0" right="0" top="0" bottom="0">
<s:fill>
<s:LinearGradient rotation="90">
<s:GradientEntry color="0xFFFFFF"
color.hovered="0xBBBDBD"
color.down="0xAAAAAA"
alpha="0.85" />
<s:GradientEntry color="0xD8D8D8"
color.hovered="0x9FA0A1"
color.down="0x929496"
alpha="0.85" />
</s:LinearGradient>
</s:fill>
</s:Rect>
<!-- layer 3: fill lowlight -->
<!--- @private -->
<s:Rect id="lowlight" left="0" right="0" top="0" bottom="0">
<s:fill>
<s:LinearGradient rotation="270">
<s:GradientEntry color="0x000000" ratio="0.0" alpha="0.0627" />
<s:GradientEntry color="0x000000" ratio="0.48" alpha="0.0099" />
<s:GradientEntry color="0x000000" ratio="0.48001" alpha="0" />
</s:LinearGradient>
</s:fill>
</s:Rect>
<!-- layer 4: fill highlight -->
<!--- @private -->
<s:Rect id="highlight" left="0" right="0" top="0" bottom="0">
<s:fill>
<s:LinearGradient rotation="90">
<s:GradientEntry color="0xFFFFFF"
ratio="0.0"
alpha="0.33"
alpha.hovered="0.22"
alpha.down="0.12"/>
<s:GradientEntry color="0xFFFFFF"
ratio="0.48"
alpha="0.33"
alpha.hovered="0.22"
alpha.down="0.12" />
<s:GradientEntry color="0xFFFFFF"
ratio="0.48001"
alpha="0" />
</s:LinearGradient>
</s:fill>
</s:Rect>
<!-- layer 5: highlight stroke (all states except down) -->
<!--- @private -->
<s:Rect id="highlightStroke" left="0" right="0" top="0" bottom="0" excludeFrom="down">
<s:stroke>
<s:LinearGradientStroke rotation="90" weight="1">
<s:GradientEntry color="0xFFFFFF" alpha.hovered="0.22" />
<s:GradientEntry color="0xD8D8D8" alpha.hovered="0.22" />
</s:LinearGradientStroke>
</s:stroke>
</s:Rect>
<!-- layer 6: highlight stroke (down state only) -->
<!--- @private -->
<s:Rect id="hldownstroke1" left="0" right="0" top="0" bottom="0" includeIn="down">
<s:stroke>
<s:LinearGradientStroke rotation="90" weight="1">
<s:GradientEntry color="0x000000" alpha="0.25" ratio="0.0" />
<s:GradientEntry color="0x000000" alpha="0.25" ratio="0.001" />
<s:GradientEntry color="0x000000" alpha="0.07" ratio="0.0011" />
<s:GradientEntry color="0x000000" alpha="0.07" ratio="0.965" />
<s:GradientEntry color="0x000000" alpha="0.00" ratio="0.9651" />
</s:LinearGradientStroke>
</s:stroke>
</s:Rect>
<!--- @private -->
<s:Rect id="hldownstroke2" left="1" right="1" top="1" bottom="1" includeIn="down">
<s:stroke>
<s:LinearGradientStroke rotation="90" weight="1">
<s:GradientEntry color="0x000000" alpha="0.09" ratio="0.0" />
<s:GradientEntry color="0x000000" alpha="0.00" ratio="0.0001" />
</s:LinearGradientStroke>
</s:stroke>
</s:Rect>
<!--<s:Rect id="fill" left="0" right="0" top="0" bottom="0">
<s:fill>
<s:LinearGradient rotation="90">
<s:GradientEntry color.normal="0xf9f9f9" color.hovered="0xfcfdfa"
color.down="0xdceac2" alpha="0.85" />
<s:GradientEntry color.normal="0xeaeaea" color.hovered="0xdceac2"
color.down="0xd2e1b5" alpha="0.85" />
</s:LinearGradient>
</s:fill>
</s:Rect>-->
<!--<s:VGroup left="7" right="7" top="5" bottom="5" gap="6" verticalAlign="middle">
<s:TextInput width="100%" />
<s:HGroup width="100%">
<s:Group id="labelDisplayGroup" width="100%" />
<s:Group id="sortIndicatorGroup" includeInLayout="false" />
</s:HGroup>
</s:VGroup>-->
<s:VGroup verticalAlign="middle" left="7" top="5" right="7" bottom="5" gap="2" >
<s:TextInput id="filterInput" width="100%" visible="false" includeInLayout="false" keyUp="onKeyUp(event)" focusOut="onFocusOut(event)" click="onTextInputSelection(event)"/>
<s:Spacer id="filterSpacer" visible="false" includeInLayout="false" height="5" />
<s:HGroup width="100%" height="100%" verticalAlign="middle">
<s:Group id="labelDisplayGroup" width="100%" />
<s:Group id="sortIndicatorGroup" includeInLayout="false" />
</s:HGroup>
</s:VGroup>
</s:GridItemRenderer>Based on your idea, i've intercepted the click event and I use stopImmediatePropagation.
THen i added an image to sort the column. So if the image is clicked the sort is ok. -
I have to make a datagrid column editable during runtime based on the data. If the column has a specific data then the column should not be editable otherwise it should be editable. Can we do it in flex ? please show some pointers.
I don't have any examples , but you should probably have a custom itemrenderer for your datagrid which contains a textarea. In the itemrenderer should override set data( value:Object ):void. In that function you check a condition to see if the textarea "editable" value should be set to true or false. Below I have some pseudo-code.
<s:Itemrenderer>
override public function set data( value:Object ):void
if( object.decidingValue > 0 )
TnA.editable = false;
else
TnA.editable = true;
<s:TextArea id="TnA" />
</s:Itemrenderer>
or you could just put the code in the TextArea declaration
<s:TextArea id="TnA" editable="{data.decidingValue > 0}" />
(TextInput area is probably more appropriate than a textarea , but the logic is the same )
If this response was helpful please mark it as such. -
ItemRenderer in a datagrid column setStyle() does not do anything to the appearance
I have a custom ItemRenderer in a datagrid column, however
the setStyle() does not do anything to the appearance. when it is
called. Any ideas?
<mx:DataGridColumn dataField="area" width="50"
headerText="Area">
<mx:itemRenderer>
<mx:Component>
<mx:Text>
<mx:Script>
<![CDATA[
override public function set data( value:Object ) : void {
super.data = value;
setStyle("Color",0xff0000);
if(data.area == 'G'){
setStyle("backgroundColor",0xff0000);
}else{
setStyle("backgroundColor",0xff0000);
]]>
</mx:Script>
</mx:Text>
</mx:Component>
</mx:itemRenderer>
</mx:DataGridColumn>Your renderer code looks a little strange. This works, and
may get you started: -
I have a datagrid column that contains strings in this
syntax: ##% (##%)
When the percentages are over 0% I'd like the text to be
green; when the percentages are under 0%, I'd like to change the
text to red. Apart from breaking this into two columns, how can I
change the colors of different strings inside the same datagrid
column?
Thanks,
TomTom,
One way to do this would be to make a custom ItemRenderer
based on a Label for your dataGrid column. Then, just test whether
you have positive or negative values for your dataField. If it is
negative, use a setStyle('color', 0xFF0000) for red. Here is a
basic example:
<?xml version="1.0" encoding="utf-8"?>
<mx:Label xmlns:mx="
http://www.adobe.com/2006/mxml">
<mx:Script>
<![CDATA[
override public function set data(value:Object):void {
super.data = value;
if (value != null)
if(value.fieldValue >= 0) //fieldValue will need to match
your dataField value from your dataProvider of your dataGrid. You
might need to convert it to an int to compare.
setStyle("color", 0x00DD00);
} else {
setStyle("color", 0xDD0000);
super.invalidateDisplayList();
]]>
</mx:Script>
</mx:Label>
Then in your main app:
<mx:DataGridColumn headerText="Drill Type"
dataField="fieldVAlue" width="105"
itemRenderer="renderers.RedGreen"/>
This assumes that your mxml component is named
'RedGreen.mxml' and is in the 'renderers' directory. You can adjust
this to fit your project as needed. I hope this helps.
Vygo -
Datagrid column in module causing memory leak
Hi All
I'm having trouble with a DataGrid column preventing a module from being release properly. I can't imagine this is the intended behaviour.
Using this simple test case, a WindowedApplication and an mx:Module I wonder if anyone else can reproduce this problem. The issue goes away if you simply comment out the GridColumn Instance.
Can anyone offer any advice?
Many thanks
James
DataGridTest.mxml
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx">
<fx:Script>
<![CDATA[
import mx.core.IVisualElement;
import mx.events.ModuleEvent;
import mx.modules.IModuleInfo;
import mx.modules.ModuleManager;
private var assetModule:IModuleInfo;
protected function load_clickHandler(event:MouseEvent):void
assetModule = ModuleManager.getModule('DataGridTestModule.swf');
assetModule.addEventListener("ready", getModuleInstance);
assetModule.load();
public function getModuleInstance(event:ModuleEvent):void
var sm:DisplayObject = assetModule.factory.create() as DisplayObject;
sm.addEventListener("close", closeModule);
contentHolder.addElement(sm as IVisualElement);
private function closeModule(event:Event):void
event.target.removeEventListener("close", closeModule);
contentHolder.removeElement(event.target as IVisualElement);
assetModule.unload();
assetModule = null;
]]>
</fx:Script>
<s:VGroup width="100%" height="100%">
<s:HGroup >
<s:Button id="load" label="Load" click="load_clickHandler(event)"/>
</s:HGroup>
<s:BorderContainer id="contentHolder" width="100%" height="100%"/>
</s:VGroup>
</s:WindowedApplication>
DataGridTestModule.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:Module xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
layout="absolute" xmlns:components="components.*">
<fx:Script>
<![CDATA[
protected function close_clickHandler(event:MouseEvent):void
dispatchEvent(new Event('close', true, false))
]]>
</fx:Script>
<s:BorderContainer id="contacts"
width="100%" height="100%"
backgroundAlpha="0"
borderVisible="false">
<s:layout>
<s:VerticalLayout/>
</s:layout>
<s:Button id="close" label="Close" click="close_clickHandler(event)"/>
<s:DataGrid id="queries" >
<s:columns>
<s:ArrayList>
<s:GridColumn/> <!-- Comment out this GridColumn instance to see the leak disappear -->
</s:ArrayList>
</s:columns>
</s:DataGrid>
</s:BorderContainer>
</mx:Module>OK, So I've done some more testing. Creating the GridColumn in AS during the creationComplete event is a slight improvement. It seems to allow the DataGrid and the Module be GC'd, but it's still leaking memory somewhere. I just can't get my head around the Profiler. Also, it's going to be a massive headache if we have to rewrite our application to create all the GridColumns in AS. Surely this shouldn't be necessary?
New test case below:
DataGridTest.mxml
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx">
<fx:Script>
<![CDATA[
import mx.collections.ArrayList;
import mx.core.IVisualElement;
import mx.events.ModuleEvent;
import mx.modules.IModuleInfo;
import mx.modules.ModuleManager;
import spark.components.gridClasses.GridColumn;
private var assetModule:IModuleInfo;
private var sm:DisplayObject;
protected function load_clickHandler(event:MouseEvent):void
assetModule = ModuleManager.getModule('DataGridTestModule.swf');
assetModule.addEventListener("ready", getModuleInstance);
assetModule.load();
public function getModuleInstance(event:ModuleEvent):void
sm = assetModule.factory.create() as DisplayObject;
sm.addEventListener("close", closeModule);
contentHolder.addElement(sm as IVisualElement);
private function closeModule(event:Event):void
event.target.removeEventListener("close", closeModule);
contentHolder.removeElement(event.target as IVisualElement);
assetModule.unload();
assetModule = null;
]]>
</fx:Script>
<s:VGroup width="100%" height="100%">
<s:HGroup >
<s:Button id="load" label="Load" click="load_clickHandler(event)"/>
</s:HGroup>
<s:BorderContainer id="contentHolder" width="100%" height="100%"/>
</s:VGroup>
</s:WindowedApplication>
DataGridTestModule.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:Module xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
creationComplete="module1_creationCompleteHandler(event)"
layout="absolute" xmlns:components="components.*">
<fx:Script>
<![CDATA[
import flash.utils.setTimeout;
import mx.collections.ArrayList;
import mx.events.FlexEvent;
import spark.components.gridClasses.GridColumn;
[Bindable]
private var _col:ArrayList = new ArrayList();
protected function close_clickHandler(event:MouseEvent):void
dispatchEvent(new Event('close', true, false))
protected function module1_creationCompleteHandler(event:FlexEvent):void
var gc:GridColumn = new GridColumn();
gc.headerText = 'Test Column';
_col.addItem(gc);
]]>
</fx:Script>
<s:BorderContainer width="100%" height="100%">
<s:layout>
<s:VerticalLayout/>
</s:layout>
<s:Button id="close" label="Close" click="close_clickHandler(event)"/>
<s:DataGrid id="queries" columns="{_col}"/>
</s:BorderContainer>
</mx:Module> -
Datagrid column that contains checkbox erroring
Hi i'm trying to set the selected option on a checkbox in a datagrid column but i keep getting the error "Access to undefined property data". Can someone shead some light on how i can fix this? The code i have is below.
Thanks in advance....
<mx:DataGrid x="140" y="85" width="596" height="294" id="rankGrid" dataProvider="{dp}" doubleClick="updRank();" doubleClickEnabled="true">
<mx:columns>
<mx:DataGridColumn headerText="Court" dataField="court"/>
<mx:DataGridColumn headerText="Team One" dataField="level"/>
<mx:DataGridColumn headerText="Checked In" dataField="chkdInOne">
<mx:itemRenderer>
<fx:Component>
<s:CheckBox selected="{data.chkdInOne}" click="outerDocument.checkInTeamOne()" />
</fx:Component>
</mx:itemRenderer>
</mx:DataGridColumn>
<mx:DataGridColumn headerText="Team One" dataField="teamonedesc"/>
<mx:DataGridColumn headerText="Checked In" dataField="chkdInTwo">
<mx:itemRenderer>
<fx:Component>
<s:CheckBox click="outerDocument.checkInTeamTwo()" selected="{data.chkdInTwo}"/>
</fx:Component>
</mx:itemRenderer>
</mx:DataGridColumn>
<mx:DataGridColumn headerText="Team Two" dataField="teamtwodesc"/>
</mx:columns>
</mx:DataGrid>try wrapping your component inside the itemrenderer tag
<fx:Component>
<s:ItemRenderer>
<s:CheckBox />
</s:ItemRenderer>
</fx:Component> -
Datagrid column header word wrap issue
Hi All,
I'm passing dynamic text to a datagrid column header. The word wrap is true but it's not working.
Any ideas how to fix this issue?
DataGridColumn headerText="{myVar.text} Total" headerWordWrap="true"
Thanks
Johnny@Johnny,
Try to make use of the headerRenderer property and use <mx:Text /> control as a renderer so that your headerText gets wrapped..
Thanks,
Bhasker
Message was edited by: BhaskerChari -
Changing dataGrid column width with actionScript
Having a strange change when trying to change any dataGrid column width with this code:
dataGrid.columns[ 5 ].width = 200;
It do changes the width of column number 6 to 200, but strangely it's also changes the width of the preceding columns (0-4). Every preceding column automatically increases a little bit than its' existing width without having me any idea.
Any idea anyone have!
Thanks..!
SKHi,
See if this thread helps:
http://www.adobe.com/cfusion/webforums/forum/messageview.cfm?catid=585&threadid=1237299
Cheree -
Adding a Tree into a datagrid column
I have a requirement where I have to create a datagrid with
one of the columns having a tree control. The problem I am trying
to resolve is how to dynamically change the height of the datagrid
column which has the tree when the tree is collapsed and
dynamically increase the datagrid column height when the tree is
expanded.
Is is feasible ? Am I chasing a wild dream ?
Any help will be greatly appreciated...
ThanksDarin,
Thank you for responding. I was able to get a tree display in
a datagrid. I am going to attach all the code.
The problem I am facing is, I need two clicks to expand a
tree in the datagrid column so that both the tree to expand and the
datagrid column to adjust its height. Let me know why this is so.
May be, being a newbie, I am completely off the track here. Thanks
in advance.
THE MXML
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute" xmlns:ns1="com.ram.flash.custom.*">
<mx:XML id="xmlData" source="myDataWithTree.xml"/>
<mx:HBox>
<mx:DataGrid id="dgSource"
dataProvider="{xmlData.person}" editable="false"
variableRowHeight="true">
<mx:columns>
<mx:Array>
<mx:DataGridColumn editable="false" sortable="false"
resizable="true" width="400" textAlign="left" headerText="Id"
dataField="address">
<mx:itemRenderer>
<mx:Component>
<ns1:PruDataGridTreeColumn
disclosureOpenIcon="@Embed(source='icn_minus.jpg')"
disclosureClosedIcon="@Embed(source='icn_plus.jpg')" width="260"
height="20" />
</mx:Component>
</mx:itemRenderer>
</mx:DataGridColumn>
<mx:DataGridColumn headerText="Name" dataField="name"
editable="false"/>
<mx:DataGridColumn headerText="Age" dataField="age"
editable="false"/>
</mx:Array>
</mx:columns>
</mx:DataGrid>
</mx:HBox>
</mx:Application>
THE DATA
<?xml version="1.0" encoding="UTF-8" ?>
<data>
<person>
<name>Mister</name>
<age>36</age>
<address>
<Capitals label="U.S. State Capitals">
<capital label="AL" value="Montgomery"/>
<capital label="AK" value="Juneau"/>
<capital label="AR" value="Little Rock"/>
<capital label="AZ" value="Phoenix"/>
<capital label="AL" value="Montgomery"/>
<capital label="AK" value="Juneau"/>
<capital label="AR" value="Little Rock"/>
<capital label="AZ" value="Phoenix"/>
<capital label="AL" value="Montgomery"/>
<capital label="AK" value="Juneau"/>
<capital label="AR" value="Little Rock"/>
<capital label="AZ" value="Phoenix"/>
</Capitals>
</address>
</person><person>
<name>Missus</name>
<age>28</age>
<address>
<Capitals label="Indian State Capitals">
<capital label="AL" value="Montgomery"/>
<capital label="AK" value="Juneau"/>
<capital label="AR" value="Little Rock"/>
<capital label="AZ" value="Phoenix"/>
</Capitals>
</address>
</person>
</data>
THE CUSTOM ACTIONSCRIPT CLASS
package com.ram.flash.custom
import flash.geom.Rectangle;
import mx.core.IDataRenderer;
import mx.controls.listClasses.IListItemRenderer;
import flash.display.DisplayObjectContainer;
import flash.events.Event;
import mx.managers.ISystemManager;
import mx.controls.Tree;
import flash.display.Sprite;
import flash.display.DisplayObject;
import mx.events.FlexEvent;
import mx.collections.XMLListCollection;
import flash.events.MouseEvent;
import mx.controls.treeClasses.TreeItemRenderer;
import mx.controls.treeClasses.TreeListData;
import mx.core.ClassFactory;
import mx.events.ScrollEvent;
import mx.controls.DataGrid;
import mx.events.CollectionEvent;
import mx.events.CollectionEventKind;
public class PruDataGridTreeColumn extends Tree implements
IListItemRenderer, IDataRenderer
private var _data : Object = null;
private var _dataGrid:DataGrid = null;
[Bindable("dataChange")]
public override function get data():Object
return _data;
public function set myDataGrid(value:DataGrid):void
_dataGrid = value;
public function PruDataGridTreeColumn()
super();
public override function set data(value:Object):void
this._data = value;
this.invalidateProperties();
var xmlDATA:XMLList = new XMLList(_data);
this.labelField='@label';
this.dataProvider = xmlDATA.address.Capitals;
dispatchEvent(new FlexEvent(FlexEvent.DATA_CHANGE));
override public function expandItem(item:Object,
open:Boolean, animate:Boolean=false, dispatchEvent:Boolean=false,
cause:Event=null):void
animate = true;
super.expandItem(item,open,animate,dispatchEvent,cause);
var lc:XML = new XML(item);
var ht:Number = 20;
var wt:Number = this.width;
if(open)
ht = (lc.children().length() * 20 + 40);
this.height = (lc.children().length() * 20 + 40);
else
ht = 20;
this.height = 20;
}
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