[FLEX-26444] User can use compare function of a SortField instance without Sort instance

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Adobe Flex SDK Previous
• Fix Version/s: Adobe Flex SDK Previous
• Component/s: Spark: Sort and SortField
• Environment: Affected OS(s): All OS Platforms; Affected OS(s): All OS Platforms; Browser: Firefox 3.x; Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 16/Jan/11 23:07
• Updated: 01/Apr/11 17:22
• Resolved: 19/Jan/11 10:48

Description

Steps to reproduce:
1. Create a SortField instance under "<fx:Declarations>" tag.
2. Set "compareFunction" of this SortField instance to "sortCompareFunction" property of a DataGridColumn.

Actual Results:
We can use compare function of SortField without Sort.

Expected Results:
SortField should not be used without Sort wapper.

Workaround (if any):

User can use compare function of spark Sort and SortField both.
The Sort with a property SortField way is clear and good.
But for the SortField only, it's not so clearly on strategy of Sort/SortField.

<fx:Declarations>
<s:SortField id="sfSingle" name="name" />
</fx:Declarations>
<mx:DataGrid dataProvider="

{dataXmlListArrSAdd}

" width="100%" height="100%">
<mx:columns>
<mx:DataGridColumn dataField="name" sortCompareFunction="

{sfSingle.compareFunction}

"/>
</mx:columns>
</mx:DataGrid>

We may add some document to guide user what is the best practice of using Sort and SortField.