hi,
what is the problem with the bellow code,it gives AG_E_UNKNOWN_ERROR . actually the error appears only if I add RadGridView.
<telerik:RadExpander.Content>
<Border BorderThickness="1" BorderBrush="Black">
<Canvas Width="400" Height="500">
<grid:RadGridView></grid:RadGridView>
</Canvas>
</Border>
</telerik:RadExpander.Content>
thanx