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https://issues.apache.org/jira/browse/FLEX-34741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14648111#comment-14648111
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BERTOLINO commented on FLEX-34741:
----------------------------------
Here it is, as described in the description of this issue the drag and drop is
not functionning :
1°) no drop location indicator when dragging
2°) item always take position on the 2nd position.
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009";
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
width="100%" height="100%" minWidth="955" minHeight="600"
initialize="application1_initializeHandler(event)">
<fx:Script>
<![CDATA[
import mx.events.FlexEvent;
[Bindable]
public var dataProvider:ArrayCollection = new
ArrayCollection();
protected function
application1_initializeHandler(event:FlexEvent):void
{
for (var x:int = 1 ; x <= 10; x++)
{
var anObj:Object = new Object();
anObj["id"]=x;
anObj["label"]="label "+x;
dataProvider.addItem(anObj);
}
}
]]>
</fx:Script>
<s:DataGrid width="100%" height="100%" dataProvider="{dataProvider}"
dragEnabled="true" dropEnabled="true" dragMoveEnabled="true">
<s:columns>
<s:ArrayCollection>
<s:GridColumn dataField="id" editable="false"
rendererIsEditable="false"/>
<s:GridColumn dataField="label"
editable="false" rendererIsEditable="false"/>
</s:ArrayCollection>
</s:columns>
</s:DataGrid>
</s:Application>
> Spark DataGrid Drag and Drop non functioning
> --------------------------------------------
>
> Key: FLEX-34741
> URL: https://issues.apache.org/jira/browse/FLEX-34741
> Project: Apache Flex
> Issue Type: Bug
> Components: Spark: DataGrid
> Affects Versions: Apache Flex 4.14.0
> Reporter: Devin
> Labels: drag&drop
>
> Description
> Dropping a dragged item onto the grid does not work. When calculating the
> DropLocation (in dragEnter, dragOver, dragDrop handlers) it falls through to
> LayoutBase.calculateDropIndex which simply executes "return
> target.numElements;" That's clearly not how the dropIndex should be
> calculated on the grid. The GridLayout class should be overriding this method
> and calculating it correctly.
> Furthermore, upon trying to fix this issue (which is more complicated than it
> should be because DataGrid.calculateDropPosition() is marked as private) the
> DataGrid.calculateDropPosition() does not perform a null check on the
> DropLocation (which is valid value).
> Steps to Reproduce
> 1. Create a DataGrid with dragEnabled, dragMoveEnabled, and dropEnabled all
> set to true.
> 2. Try dragging rows around and dropping them.
> Environment
> Windows 8, Apache Flex 4.14
> Expected Behavior
> Seeing the drop indicator.
> The expected behavior of dragging a row and dropping it in another location.
> Actual Behavior
> No drop indicator. Dropping a row does nothing.
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