Remove datagrid sort

Is it possible to remove a sort from a datagrid column? I want to give the user the ability to remove a sort from a column since currently once they sort they can not unsort. Also, if I put new clear the data provider and put new data in the column stays sorted and that is not the preferred functionality.

Hello Silent Ryan,
This will clear the sort:
ListCollectionView(dataGrid.dataProvider).sort = null;
ListCollectionView(dataGrid.dataProvider).refresh();
Thanks,
Philip
Message was edited by: PhilipKeiter

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 var arr:Array = new Array();
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Datagrid sorting issues with 1/0 items to consider

Hi all,
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<file name="@toto" favourite="1"/>
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Hi guys,
First of all, all my apologizes for my silence. I had technical issues with Yahoo mail that made me miss 3 months mail ! So I just missed your posts and I can only come today to thank you all for your care and answers.
In the meanwhile, I finally got it working by doing…nothing. Let me explain. The issue was caused by equal datas ( 1 or 0 ). So Flex couldn't sort 1 and 1 or 0 and 0 by itself. But these 0 and 1 were flags for an itemrenderer made of a button in toggle mode. 1 standed for on, 0 for off.
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Hi Experts,
How to remove sort button from ALV List.
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2. Important code is marked in bold
3. Just copy paste.
4.
report abc.
TYPE-POOLS : slis.
DATA : alvfc TYPE slis_t_fieldcat_alv.
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data : excl type SLIS_T_EXTAB.
data : exclwa type SLIS_EXTAB.
data : begin of itab occurs 0.
 include structure usr02.
data : end of itab.
START-OF-SELECTION.
select * from usr02
into table itab.
CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
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*----
IMPORTANT
fcodes to remove
Up and Down Sort Button
exclwa-fcode = '&OUP'.
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exclwa-fcode = '&ODN'.
append exclwa to excl.
Display
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amit m.

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Edited by: micheal willis on Oct 9, 2009 11:34 AM

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Hello,
I have a problem when it comes to sorting a datagrid with multiple fields. I have two fields A and B . B has numerical values . How can i sort B yet also change the data in A since they are dependent from each other?
This is my datagrid
<s:DataGrid id="rankinggrid" includeIn="Ranking" x="156" y="84" width="528" height="229"
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Basically i want to sort coeff in desending order but i want to data in seqrank to move accordingly.
Thanks for your help
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Thanks for your help again
I have reduced the code since the original code is very lengthy and hence impossible to post , yet this should work.
Here i am sorting the grid array according to cost. The problem is that it doesnt work it out in a descending manner(the command you told me doesnt work it gives me an error ) i have used sort and it sorts it in an ascending way and does not give me an error
I would like to solve in a descending way Hope you can help thanks for your time i really appreciate
<?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"
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 <fx:Object ProcessName ="Lathe" Cost ="975" Service_Rate="9" />
 <fx:Object ProcessName ="Boring" Cost ="800" Service_Rate="8" />
 <fx:Object ProcessName ="Drilling" Cost ="270" Service_Rate="20" />
 </s:ArrayCollection>
 </fx:Declarations>
 <fx:Script>
 <![CDATA[
 import mx.collections.*;
 import mx.collections.ArrayCollection;
 import mx.collections.Sort;
 import mx.collections.SortField;
 public function init(){
 var mySort:Sort = new Sort();
 // Set the sort field; sort on the last name first, first name second.
 var sortfieldRank:SortField = new SortField("Cost", Sort); //descendingSort
 mySort.fields = [sortfieldRank];
 // Apply the sort to the collection.
 //gridrank.sort = mySort;
 ProcessAdder.sort = mySort;
 ProcessAdder.refresh();
 ]]>
 </fx:Script>
 <mx:Legend dataProvider="{ProcessAdder}"/>
 <mx:DataGrid id="ProssGrid" x="22" y="334" width="715" dataProvider="{ProcessAdder}"
 >
 <mx:columns>
 <mx:DataGridColumn dataField="ProcessName" headerText="Process Name"/>
 <mx:DataGridColumn dataField="Cost" headerText="Cost"/>
 <mx:DataGridColumn dataField="Service_Rate" headerText="Service Rate"/>
 </mx:columns>
 </mx:DataGrid>
</s:WindowedApplication>

DataGrid Sort Clears HeaderRenderer Checkbox

I have a datagrid that I defined a checkbox as the
headerrenderer for one of the columns. It took me a while to track
this down, but it seems like a re-sort on one of the columns (other
than the checkbox headerrenderer column) clears the state of the
checkbox and resets it to chexkbox.selected=false.
Is there any way to persist the checkbox selected property of
a headerrenderer checkbox instance on re-sort.
I played with disabling the default sort methods and creating
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sorted. That didn't solve my problem though.
Thanks,
JB

I did something similar with my DataGrid. The way I solved
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<mx:DataGridColumn id="copyColumn" dataField="check"
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<mx:Component>
<mx:HBox horizontalAlign="center"
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note that the above code is contained in a component that
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I think you can get the jist...

Datagrid sorting issue

I have two datagrids. After a form is submitted, datagrid 1
is populated. Clicking on any of the rows will submit to another
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Instead of sending to the HTTP service directly when clicking
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However, that only gets me half the way there. If a user
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rows?

I would not have expected that.
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determine that, you will need to look at the contents of that
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Tracy

DataGrid Sorting Issue with Hotfix2

I already opened a ticket with Adobe on this, but since this
is a critical issue for us I wanted to post a message to see if
anyone has any idea where the issue in flex sdk lies.
Check tab 2 of the sample app, Sorting a datagrid who's
column only has partial data causes an error, works fine on Hotfix
1 (same test)
Sample App:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="
http://www.adobe.com/2006/mxml"
layout="absolute" creationComplete="creationComplete()">
<mx:Script>
<![CDATA[
import mx.collections.ArrayCollection;
import mx.utils.ObjectProxy;
[Bindable]
public var dgData:ArrayCollection = new ArrayCollection();
public function creationComplete():void
var object:ObjectProxy;
object = new ObjectProxy();
object["filled"] = "Filled A";
object["partial"] = "Partial A";
dgData.addItem(object);
object = new ObjectProxy();
object["filled"] = "Filled B";
object["partial"] = "Partial B";
dgData.addItem(object);
object = new ObjectProxy();
object["filled"] = "Filled C";
dgData.addItem(object);
object = new ObjectProxy();
object["filled"] = "Filled D";
dgData.addItem(object);
]]>
</mx:Script>
<mx:XMLList id="treeData">
<node label="Mail Box">
<node label="Inbox">
<node label="Marketing"/>
<node label="Product Management">
<node label="Large node Large Node Large Node Large
Node"/>
</node>
<node label="Personal"/>
</node>
<node label="Outbox">
<node label="Professional"/>
<node label="Personal"/>
</node>
<node label="Spam"/>
<node label="Sent"/>
<node label="Spam2"/>
<node label="Sent2"/>
<node label="Spam3"/>
<node label="Sent3"/>
<node label="Spam4"/>
<node label="Sent4"/>
<node label="Spam5"/>
<node label="Sent5"/>
<node label="Spam6"/>
<node label="Sent6"/>
</node>
</mx:XMLList>
<mx:TabNavigator height="100%" width="1005">
<mx:Canvas label="Tree Issue">
<mx:Text x="284" y="51" fontSize="16" fontWeight="bold"
text="Issue: Expand the tree node to open up Product Management
node, no Horizontal Scroll bar appears." width="390"/>
<mx:Canvas verticalScrollPolicy="auto"
horizontalScrollPolicy="auto">
<mx:Tree x="50" y="50" width="226" height="303"
dataProvider="{treeData}" labelField="@label"
verticalScrollPolicy="auto" horizontalScrollPolicy="auto"/>
</mx:Canvas>
</mx:Canvas>
<mx:Canvas label="DataGrid Issue">
<mx:DataGrid id="dgTest" dataProvider="{dgData}"
width="500" height="300" x="10" y="10">
<mx:columns>
<mx:DataGridColumn headerText="Filled Row"
dataField="filled"/>
<mx:DataGridColumn headerText="Partially Filled Row"
dataField="partial"/>
</mx:columns>
</mx:DataGrid>
<mx:Text x="10" y="318" fontSize="16" fontWeight="bold"
text="Issue: Toggle the sort in the column that has only partial
data. You will get a find criteria error. This worked in Hotfix 2
and was broke in Hotfix 2." width="390"/>
</mx:Canvas>
</mx:TabNavigator>
</mx:Application>

Hi,
With new hotfixes some bugs ( most of bugs) in Flex SDK are
get fixed, but rarely new (sometimes critical) bugs can appear.
Before Flex 3 release which will allow on IDE level to switch
between different versions of Flex SDK on the fly, I would advice
you to store locallly copy of all versions of Flex 2 SDK released
to the public. Then, in case if you will encounter a serious bug in
the most recent release of Flex 2 SDK, you can fix it by yourlself
by reusing the old code from former release of Flex 2 SDK.
See what I did with found bug in Flex 2.0.1 release, which is
what not present in Flex 2.0 SDK release:
jabbypanda.com/blog/?p=25

DataGrid sort efficiency questions

Hi,
I guess I have two specific questions:
1. Is sorting a DataGrid faster/slower/same by applying a
sortCompareFunction to a specific column vs. applying a Sort object
directly to the underlying dataprovider?
2. It says in the following link that if you use a
labelFunction on a column, you must also use a sortCompareFunction:
dataGridColumn.sortCompareFunction
ASDOC
Is this really true - anyone know why?
Thanks!
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Alexander,
In Flex 3 sorting is controlled by the collections rather than the controls. This provides greater flexibility overall despite making it hard to adjust to. To get or set a sort on the DataGrid in Flex 3, use the sort property of its dataProvider:
ListCollectionView(dataGrid.dataProvider).sort
You can both read and write to the sort property. When you write to it, you have to call refresh() after for it to apply. Refer to the documentation on the ListCollectionView class for how to properly get and set its sort property.
Thanks,
Philip

Figuring out datagrid sort programmatically

OK I've got a datagrid with 4 columns. I'm giving the end
user the opportunity to sort on any of these columns. They also
have a report that is generated based on the data in the grid, but
I'm wondering how determine on which column the grid is sorted, and
which (ascending / descending) order so that I can sort the report
in that exact same manner.
I've added some code on the headerRelease event to track this
information (storing it in the Cairngorm ModelLocator), but if you
trace the results it doesn't foot to what you're actually doing,
for example the following writes inconsistent (to the apparent
action being taken in the interface) info to the console. I can
always get the correct dataField property, but its sortDescending
property is almost always opposite of what the datagrid displays:
private function
handleHeaderRelease(dgEvent:DataGridEvent):void
for(var k:int=0;k<myGrid.columns.length;k++)
trace(myGrid.columns[k].dataField + ":" +
myGrid.columns[k].sortDescending);
trace("");
Does anyone know of a better way to figure out on which
column the grid is currently sorted, and what sort nature is
currently applied?
TIA,
Joe

OK I figured this out after remembering that the dataprovider
of the datagrid is just an ArrayCollection - here's the answer for
anyone who's looking for the same thing.
In the function that calls the report:
var s:Sort;
var sF:SortField;
s = summaryGrid.dataProvider.sort;
// if sort is null, they haven't clicked any column headers,
so use the default
if(s == null)
urlVariables.sortOrder = "dtAdded";
urlVariables.sortNature = "DESC";
otherwise use the first sort field
(this could be modified to build an appropriate order by
statement for multiple
sort fields if necessary)
else
sF = s.fields[0];
urlVariables.sortOrder = sF.name;
urlVariables.sortNature = sF.descending?"DESC":"ASC";
Hope this helps someone!

Remove datagrid sort

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