[
https://issues.apache.org/jira/browse/FLEX-33702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14031358#comment-14031358
]
Mark Kessler commented on FLEX-33702:
-------------------------------------
adding a rough test app...
<?xml version="1.0" encoding="utf-8"?>
<!---
Test application
-->
<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"
creationComplete="onCreationComplete();">
<fx:Script>
<![CDATA[
import mx.collections.ArrayCollection;
//----------------------------------------
// Variables
//----------------------------------------
[Bindable]
protected var acSortTypes:ArrayCollection = new ArrayCollection();
[Bindable]
protected var acTestData:ArrayCollection = new ArrayCollection();
//----------------------------------------
// Event handlers
//----------------------------------------
/**
* Change event handler for the SortTypes dropdownlist.
*/
protected function ddlSortTypes_OnChange():void
{
acTestData.sort = null;
acTestData.refresh();
dgTestSpark.columnHeaderGroup.visibleSortIndicatorIndices = null;
}
/**
* CreationComplete event handler.
*/
protected function onCreationComplete():void
{
//Setup sort compare types.
//URL:
http://flex.apache.org/asdoc/spark/collections/SortFieldCompareTypes.html
acSortTypes.addItem({label:"string"});
acSortTypes.addItem({label:"numeric"});
acSortTypes.addItem({label:"date"});
acSortTypes.addItem({label:"null"});
acSortTypes.addItem({label:"xml"});
//Setup test data.
acTestData.addItem({id:1, title:"Test1", mixed:1,
calendar:"01/01/2014"});
acTestData.addItem({id:2, title:"Test2", mixed:2,
calendar:"01/02/2014"});
acTestData.addItem({id:3, title:"Test3", mixed:3,
calendar:"01/03/2014"});
acTestData.addItem({id:4, title:"Test4", mixed:4,
calendar:"01/04/2014"});
acTestData.addItem({id:5, title:"Test5", mixed:5,
calendar:"01/05/2014"});
acTestData.addItem({id:6, title:"Test6", mixed:"6",
calendar:"01/06/2014"});
acTestData.addItem({id:7, title:"Test7", mixed:"7",
calendar:"01/07/2014"});
acTestData.addItem({id:8, title:"Test8", mixed:"8",
calendar:"01/08/2014"});
acTestData.addItem({id:9, title:"Test9", mixed:"9",
calendar:"01/09/2014"});
acTestData.addItem({id:10, title:"Test10", mixed:"10",
calendar:"01/10/2014"});
acTestData.addItem({id:11, title:"Test11", mixed:true,
calendar:"02/11/2014"});
acTestData.addItem({id:12, title:"Test12", mixed:false,
calendar:"02/12/2014"});
acTestData.addItem({id:13, title:"Test13", mixed:"",
calendar:"02/13/2014"});
acTestData.addItem({id:14, title:"Test14", mixed:"",
calendar:"02/14/2014"});
acTestData.addItem({id:15, title:"Test15", mixed:true,
calendar:"02/15/2014"});
acTestData.addItem({id:16, title:"Test16", mixed:false,
calendar:"02/16/2014"});
acTestData.addItem({id:17, title:"Test17", mixed:"1.7",
calendar:"02/17/2014"});
acTestData.addItem({id:18, title:"Test18", mixed:"1.8",
calendar:"02/18/2014"});
acTestData.addItem({id:19, title:"Test19", mixed:null,
calendar:"02/19/2014"});
acTestData.addItem({id:20, title:"Test20", mixed:null,
calendar:"02/20/2014"});
}
]]>
</fx:Script>
<s:layout>
<s:VerticalLayout horizontalAlign="center" verticalAlign="middle"
gap="30" />
</s:layout>
<!-- The sort type list -->
<s:DropDownList id="ddlSortTypes" dataProvider="{acSortTypes}"
requireSelection="true" change="ddlSortTypes_OnChange();" />
<s:HGroup gap="20">
<!-- Spark datagrid example -->
<s:DataGrid id="dgTestSpark" dataProvider="{acTestData}" width="400">
<s:columns>
<mx:ArrayList>
<s:GridColumn dataField="id"
sortCompareType="{ddlSortTypes.selectedItem.label}" />
<s:GridColumn dataField="title"
sortCompareType="{ddlSortTypes.selectedItem.label}" />
<s:GridColumn dataField="mixed"
sortCompareType="{ddlSortTypes.selectedItem.label}" />
<s:GridColumn dataField="calendar"
sortCompareType="{ddlSortTypes.selectedItem.label}" />
</mx:ArrayList>
</s:columns>
</s:DataGrid>
<!-- MX datagrid example -->
<mx:DataGrid id="dgTestMX" dataProvider="{acTestData}" width="400">
<mx:columns>
<mx:DataGridColumn dataField="id"
sortCompareType="{ddlSortTypes.selectedItem.label}" />
<mx:DataGridColumn dataField="title"
sortCompareType="{ddlSortTypes.selectedItem.label}" />
<mx:DataGridColumn dataField="mixed"
sortCompareType="{ddlSortTypes.selectedItem.label}" />
<mx:DataGridColumn dataField="calendar"
sortCompareType="{ddlSortTypes.selectedItem.label}" />
</mx:columns>
</mx:DataGrid>
<!-- MX advanced datagrid example -->
<mx:AdvancedDataGrid id="adgTestMX" dataProvider="{acTestData}"
width="400">
<mx:columns>
<mx:AdvancedDataGridColumn dataField="id"
sortCompareType="{ddlSortTypes.selectedItem.label}" />
<mx:AdvancedDataGridColumn dataField="title"
sortCompareType="{ddlSortTypes.selectedItem.label}" />
<mx:AdvancedDataGridColumn dataField="mixed"
sortCompareType="{ddlSortTypes.selectedItem.label}" />
<mx:AdvancedDataGridColumn dataField="calendar"
sortCompareType="{ddlSortTypes.selectedItem.label}" />
</mx:columns>
</mx:AdvancedDataGrid>
</s:HGroup>
</s:Application>
> DataGrid columns unable to specify sorting internal compare functions used.
> ---------------------------------------------------------------------------
>
> Key: FLEX-33702
> URL: https://issues.apache.org/jira/browse/FLEX-33702
> Project: Apache Flex
> Issue Type: Improvement
> Components: Advanced Data Grid, mx: DataGrid, Spark: DataGrid
> Affects Versions: Apache Flex 4.10.0
> Reporter: Mark Kessler
> Assignee: Mark Kessler
> Priority: Minor
> Fix For: Apache Flex 4.11.0
>
>
> The DataGrid columns do not allow selecting which type of internal compare
> function that is used to sort the columns. So inconsistent data formatting
> causes it to choose what it thinks it the best formatting. There should be
> an easy way to select it right from the columns properties.
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