Read the item renderers section on my blog (blogs.adobe.com/aharui). Start with the oldest posting.
From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Simon Bailey Sent: Saturday, November 22, 2008 2:37 PM To: [email protected] Subject: [flexcoders] DataGrid itemRenderer Woes Hi, I have seen through google that this has been an issue but implementing various solutions still leaves my existing problem. Essentially I have a DataGrid with a custom itemRenderer displaying CheckBoxes. Within the renderer I am running a comparison on a value within the renderers data i.e. data.my_val and the current grid row and column values. Depending on whether the data value equals a specific row I show or hide the check box. I achieve this by running the comparison logic with the overridden updateDisplayList method below which works fine until scrolled. override protected function updateDisplayList( unscaledWidth:Number, unscaledHeight:Number ):void { super.updateDisplayList( unscaledWidth, unscaledHeight ); var row:int = listData.rowIndex+1; for( var i:int = 0; i < data.ff.length; i++ ) { if( data.val[listData.columnIndex-1] != undefined && data.val[listData.columnIndex-1].option[i] == row ) { btn.visible = true; } } } The issue is on scroll all of the check boxes are displayed/hidden incorrectly and the whole grid messes right up! Any ideas pls would be appreciated. Si
