Well you can try an eventListener for the sortChanging[1] event of the datagrid. You can reference the column clicked by checking the last item added [2]. Once you're done with your own means of sorting the ArrayCollection or adding your own spark Sort with SortField [3] you can prevent the default sort[4]. Below are incomplete, but should give enough to get the gist.
[1] http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/spark/components/DataGrid.html#event:sortChanging [2] var column:GridColumn; var columnIndex:int = -1; columnIndex = event.columnIndices[event.columnIndices.length - 1]; column = event.currentTarget.columns.getItemAt(columnIndex); [3] http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/spark/collections/Sort.html http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/spark/collections/SortField.html var sort:Sort =new Sort(); sort.fields = new Array(); sort.fields.push(new SortField("FieldName", isDescending, isNumeric)); myArrayCollection.sort = sort; [4] event.preventDefault(); -Mark -----Original Message----- From: bilbosax [mailto:waspenc...@comcast.net] Sent: Monday, July 25, 2016 3:03 AM To: users@flex.apache.org Subject: Re: Why are Spark Datagrid headers sorting my data so slowly in Air? I wish I could, but I would not be able to get permission to send you the company database. I did figure out that if I did the sorts by writing my own routines on the arraycollection, the datagrid updates in about a second. This is a *enormous* improvement, but leaves me with the task of writing 52 sorting subroutines. Oh well, it is better than nothing. At this point, I can only surmise that the problem is within the sorting routines contained within the spark datagrid component. That is my 2 cents. -- View this message in context: http://apache-flex-users.2333346.n4.nabble.com/Why-are-Spark-Datagrid-headers-sorting-my-data-so-slowly-in-Air-tp13026p13053.html Sent from the Apache Flex Users mailing list archive at Nabble.com.
