DataGrid Column Width Issues (Bug?)

I have a couple datagrid with three columns, one column in
each grid has width="50". I've noticed some odd behavior with this.
First, in Flex Builder, the width of those columns randomly change
in Design view. If I go and change the width setting to something
else and back to 50 or refresh the display it goes back to
displaying correctly.
Second, when I actually run the project, it seems that my
contraint layout settings expand my 50 pixels significantly. It
certainly doesn't evenly split my three columns if I have a width
setting, but it is far bigger than 50 pixels.
These could be completely unrelated, but are both
unexpected.

I haven't set the horizontalScrollPolicy, so I'm assuming
it's the default. The way you described it is the way I understand
it would work, however, it seems that when I use contraint layout
to stretch it to nearly 100% across the screen, the 50 pixels is
not kept. That one column is certainly narrower that the remaining
two columns, but it is far bigger that 50 pixels. It's more like
100 or 150. It's more an annoyance than anything. I have a column
with a Checkbox in this disproportionally large column. Visually,
it looks odd.

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DataGrid column width is not set properly

Hi,
        In the below example I has called the OptimizeDataGrid method on Button Click event to resize the Column according to the data. First time of the button click event it called the function whereas the Datagrid Column width alone is not set properly.whereas on second time it is working properly.
For Eg : In the below statement the text value is coming as 55 and widthPadding is comes as 25. but the sum of these two value is not in the dg.columns[col].width.
dg.columns[col].width = text + widthPadding;
But the same is working on the second time of the Button click event. is any help me out to resovle this issue. Thanks in Advance.
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
    width="100%" height="100%" >
    <mx:Script>
        <![CDATA[
            import mx.utils.ObjectUtil;
            import mx.collections.ArrayCollection;
            import mx.core.UITextField;
            import mx.events.AdvancedDataGridEvent;
            import mx.binding.utils.BindingUtils;
            import mx.controls.Alert;
            import mx.controls.AdvancedDataGrid;
            import mx.controls.advancedDataGridClasses.*;
            import mx.controls.DataGrid;
            import mx.controls.dataGridClasses.*;
            [Bindable]
            private var dpFlat:ArrayCollection = new ArrayCollection([
              {Region:"aabbCC", Territory:"Central Californiaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
                  Territory_Rep:"Joe Smith", Actual:29134, Estimate:30000},
              {Region:"AAbbcc", Territory:"Nevada",
                  Territory_Rep:"Bethany Pittman", Actual:52888, Estimate:45000}
            private function optimizeDataGrid(dg:Object,widthPadding:uint = 0,heightPadding:uint = 0):void
                if ((!dg is DataGrid))
                    return;
                var col:uint;
                var colWidth:uint;
                var tf:TextFormat;
                var renderer:UITextField;
                var widths:Array = new Array(dg.columnCount);
                var height:uint = 0;
                var dgCol:Object;
                var text:uint = 0;
                if (dg.columnCount > 0 && dg.dataProvider != null)
                    for (col = 0; col < dg.columnCount; ++col)
                        widths[col] = 0;
                    for each (var item:Object in dg.dataProvider)
                        for (col = 0; col < dg.columnCount; ++col)
                            renderer = new DataGridItemRenderer();
                            dg.addChild(renderer);
                            dgCol = dg.columns[col];
                            renderer.text = dgCol.itemToLabel(item);
                            widths[col] = Math.max(renderer.measuredWidth, widths[col]);
                            height = Math.max(renderer.measuredHeight, height);
                            dg.removeChild(renderer);
                    for (col = 0; col < dg.columnCount; ++col)
                        dg.addChild(renderer);
                        renderer.text = dg.columns[col].headerText;
                        widths[col] = Math.max(renderer.measuredWidth,widths[col]);
                        dg.removeChild(renderer);
                        text = widths[col];
                        dg.columns[col].width = text + widthPadding;
                    if (height != 0)
                        dg.rowHeight = height + heightPadding;
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    </mx:Script>
    <mx:DataGrid id="myADG"
           dataProvider="{dpFlat}" rowCount="{dpFlat.length}" sortableColumns="false">
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                <mx:DataGridColumn dataField="Region" />
                <mx:DataGridColumn dataField="Territory_Rep" headerText="Territory Rep" />
                 <mx:DataGridColumn dataField="Territory" />
                <mx:DataGridColumn dataField="Actual" />
                <mx:DataGridColumn dataField="Estimate" />
            </mx:columns>
   </mx:DataGrid>
   <mx:Button label="click" id="click" click="optimizeDataGrid(myADG,25,5);"/>
</mx:Application>
Regards
Harikumar

With horizontalScrollPolicy="off" (the default), it is hard to control
column widths because the columns are sometimes overridden to make sure they
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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..!
SK

Hi,
See if this thread helps:
http://www.adobe.com/cfusion/webforums/forum/messageview.cfm?catid=585&threadid=1237299
Cheree

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;
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            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()">
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         <mx:Object Artist="Pavement" Price="11.99"
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         <mx:Object Artist="Pavement"
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         <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,
Srilatha

Hi 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
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                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

DataGrid: column width to content

Hi all.
I have some DataGrid, filled from array or from external
source - it's not matter.
Headers of columns can have different length, and I need to
implement columns resizing depends of header length.
I understand, that I must use some custom headerRenderer, but
I am flex newbie and have not used renderers earlier, so my test
was not sucessfull.
I've configired my DataGrid as in the attached code..
and how must I implement my renderer? should I override "set
data function" or some other method?
how can I get header lentgh in pixels?
and then how can I set column width?
Thanks and best regards.

Should I use a Label, or I need another component?
For example, can I use such renderer format?

RoboHelp 10 - Table Preferred Column Width Issue

I converted a RoboHelp 9 project to RoboHelp 10 and noticed that Column 1 in all tables has a preferred width setting of 93% and it is not allowing me to remove this setting. When I uncheck the Preferred width checkbox and click OK, then go back to the Table Properties>Column tab, the Preferred width checkbox is checked again with a width setting of 93%. The column width is not specified in the HTML, it is set to fit to the contents (<col />). The odd thing is that Column 1 only displays this way in Design view. When previewing and publishing the topic, it displays correctly (fits to contents). This however makes editing content in tables extremely difficult in Design view. Any assistance is appreciated.

If it doesn't have a width setting of 93%, where are you finding it is set to 93%?
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I do know that once I set up tables in a specific way, they were also fine in design view. Post back if stuck and I will look but it may not be for a few days.
See www.grainge.org for RoboHelp and Authoring tips
@petergrainge

Setting datagrid column width according to itemrenderer.

Hi all,
This is my first question ever in any forum i have visited, so if you find anything stupid about my way of asking question then Pls ignore.
I have taken a datagrid and for one of the datagrid column I have an itemrendere which is an HBOX. THe Hbox contains 3 buttons Edit, Update, cancel. At first only Edit button is visible and on click of it, It is removed from the Hbox and 2 other buttons i.e. Update and Cancel are added in the Hbox. what i want is when i add these 2 buttons the size of the datagrid column should get adjusted accordingly.
I have serached a lot abt this but couldnt find a solution. Please help.
Happy new year to all.....

@Pramod :
(listdata.owner as datagrid) .validateNow();
// thats wat i did. but not working.
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Column width issue in SharePoint 2010 Reports using SSRS webpart

Dear sir,
We need to adjust column width for output of reports. We are using SSRS webpart to generate reports. It is taking unexpected column width.
We show that dynamically we cannot set the column width but we are passing the query statically is there any way or chances to mange column width.
Please help.

If it's important, I'd suggest ringing Microsoft Premier Support and logging a call. The working world is probably just getting back to their offices.
For both columns, you can think about some JQuery to isolate the appropriate selectors and just reside them in the page rendering. You'll need JavaScript enabled in your browser for this but this code within a CEWP should do the trick.

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"
type="text/javascript"></script>
<script type="text/javascript">
$(function(){
$("TH.ms-vh2-nograd:contains('Status description')").css("width", "150px");
$("TH.ms-vb:contains('Type of Work')").css("width", "150px");
</script>
You'll need to link to a JQuery instance of course and change the capture text for your columns.
Credit to the code to Kjell-Sverre Jerijærvi from his
blog post.
Steven Andrews
SharePoint Business Analyst: LiveNation Entertainment
Blog: baron72.wordpress.com
Twitter: Follow @backpackerd00d
My Wiki Articles:
CodePlex Corner Series
Please remember to mark your question as "answered" if this solves (or helps) your problem.

Datagrid column width

I have 3 grids and they each have 5 columns that are a fixed
width and a different number of other columns for each grid that
are not fixed. I try width and minWidth in the DataGridColumn but I
can only make one grid fill 100% across. Im sure its a bug. I would
think the grid would streatch the widths to make 100%. any
thoughts?

Can you please put a code snippet? It would be easier to
analyze that way!
Thanks!

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Hello Experts,
We are having an Hyperion Financial reporting issue from long time. I spent so much time and still I couldn't able to make it work.
I would like to take help you guys.
Issue: In Hyperion Financial Reporting, if I change the columnA size 10 to 20 and saved the report.
In work space, I have refreshed the report ( I do the latest timestamp), run the report and exported into excel. The Coloumn size is not changing. I have tried in many ways, Still it's not working for me.
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Hi again,
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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"
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@Johnny,
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Thanks,
Bhasker
Message was edited by: BhaskerChari

Trouble with DataGrid's last column width

I have a datagrid with thirty columns.
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Thanks,
April

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In a "Design" view in v.8.0 when I set a column width from the right click menu (AutoFit > Fixed Column Width), the width of the column would be whatever width I'd set it to. Now, in v.10, the width is whatever width the Robohelp window is set to! For example, I have a large monitor and I've got Robohelp open in Full Screen mode, the table (a 1-cell table) gets set to the width of the window rather than the particular width I want to use! I want the cell to be a particular width (much less than my monitor or the open window's width). Can someone please tell me what I am doing wrong?
OS=Windows7.
Browser=IE9
Robohelp is installed locally (it is not being run over a network).
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P.S. So far this is the only issue I've had after upgrading from RH v.8 to RH v.10.

Hi William,
In a "Design" view in v.10, the table (which is 1 cell) looks like a big rectangular box. I've turned off the border (cell or table border), so the border appears in gray.
Put mouse focus on this 1-cell table, then grab an edge with the mouse.
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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();
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                var sm:DisplayObject = assetModule.factory.create() as DisplayObject;
                sm.addEventListener("close", closeModule);
                contentHolder.addElement(sm as IVisualElement);
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                event.target.removeEventListener("close", closeModule);
                contentHolder.removeElement(event.target as IVisualElement);
                assetModule.unload();
                assetModule = null;
        ]]>
    </fx:Script>
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        <s:HGroup >
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        <s:BorderContainer id="contentHolder" width="100%" height="100%"/>
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</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>
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                       backgroundAlpha="0"
                       borderVisible="false">
        <s:layout>
            <s:VerticalLayout/>
        </s:layout>
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            <s:columns>
                <s:ArrayList>
                    <s:GridColumn/> 
                </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 Width Issues (Bug?)

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