         _data = value;
 
         if (_listData && _listData is DataGridListData && 
-        	DataGridListData(_listData).dataField !=null)
+            DataGridListData(_listData).dataField !=null)
         {
             newSelected = _data[DataGridListData(_listData).dataField];
 

        var textWidth:Number = 0;
        var textHeight:Number = 0;

		// trace("measure: Button " + this + " label = " + label);
        if (label)
        {
            var lineMetrics:TextLineMetrics = measureText(label);

        mouse up while over Button -> "over" phase
        continue with step 2 of first three sequences above

    */

    /**
