Conditional Formatting

RadTreeList provides the option to conditionally modify the appearance ofa given elements. For example, it might be convenient to change the background of the cells that contain negative values.

The following example shows how to handle the ItemDataBound event in order to apply a custom color/decoration to RadTreeList cell/row.

protected void RadTreeList1_ItemDataBound(object sender, TreeListItemDataBoundEventArgs e)
{
    if (e.Item is TreeListDataItem)
    {
        TreeListDataItem item = e.Item as TreeListDataItem;
        int locationId = (int)DataBinder.Eval(item.DataItem, "LocationID");
        if (locationId < 8)
        {
            item.Font.Italic = true; //Row formatting            
            item["LocationName"].Font.Bold = true; //Cell formatting        
        }
    }
}           

Protected Sub RadTreeList1_ItemDataBound(ByVal sender As Object, ByVal e As TreeListItemDataBoundEventArgs) Handles RadTreeList1.ItemDataBound
    If TypeOf e.Item Is TreeListDataItem Then
        Dim item As TreeListDataItem = TryCast(e.Item, TreeListDataItem)
        Dim locationId As Integer = CInt(DataBinder.Eval(item.DataItem, "LocationID"))
        If locationId < 8 Then
            item.Font.Italic = True  'Row formatting         
            item("LocationName").Font.Bold = True 'Cell formatting     
        End If
    End If
End Sub

You can examine our online demo below:

RadTreeList Conditional formatting demo