When we stretch or increase the column width at runtime, it does show the complete bind text and after we double click the extended portion of the row, it does not get the event.
Following is the code example used
<telerik:GridViewDataColumn
ShowDistinctFilters="False"
Width="250"
>
<telerik:GridViewColumn.Header>
<TextBlock
Text="Role Name"
Style="{StaticResource HeaderTextBlockStyle}"
>
</TextBlock>
</telerik:GridViewColumn.Header>
<telerik:GridViewColumn.CellTemplate>
<DataTemplate>
<TextBlock
Text="{Binding Path=RoleName}"
TextTrimming="CharacterEllipsis"
Width="250"
>
<TextBlock.ToolTip>
<ToolTip
Content="{Binding Path=RoleName}"
Background="{StaticResource BlueBrush}"
Style="{StaticResource ToolTipStyle}"
>
</ToolTip>
</TextBlock.ToolTip>
</TextBlock>
</DataTemplate>
</telerik:GridViewColumn.CellTemplate>
</telerik:GridViewDataColumn>