Hello,
I am using CellTemplateSelector to change the color of a cell depending on its value. I found sample code on how to do this and it works well for GridViewDataColumn but I can't get it to work with GridViewExpressionColumn
I'm using the following and it works:
<telerik:GridViewDataColumn DataMemberBinding= "{Binding TotalAdjRateNew}" TextAlignment="Right" Width="100" DataFormatString="{} {0:#%}" IsReadOnly="True">
<telerik:GridViewDataColumn.Header>
<TextBlock Text="New Total Adj %" TextWrapping="NoWrap" TextAlignment="Center" />
</telerik:GridViewDataColumn.Header>
<telerik:GridViewDataColumn.CellTemplateSelector>
<telerik:ConditionalDataTemplateSelector>
<telerik:DataTemplateRule Condition="TotalAdjRateNew < 0">
<DataTemplate>
<TextBlock Text="{Binding TotalAdjRateNew, StringFormat=p0}"
HorizontalAlignment="Right" Foreground="Red"/>
</DataTemplate>
</telerik:DataTemplateRule>
</telerik:ConditionalDataTemplateSelector>
</telerik:GridViewDataColumn.CellTemplateSelector>
</telerik:GridViewDataColumn>
However when I use the code below with a GridViewExpressionColumn the value is not displaying. I am not sure what the binding should be inside the DataTemplateRule.
<telerik:GridViewExpressionColumn UniqueName="TotalAdjPCT" TextAlignment="Right" Width="100"
DataFormatString="{} {0:#%}" Expression="MAN_ADJ_PCT + MOD_ADJ_PCT" IsReadOnly="True">
<telerik:GridViewExpressionColumn.Header>
<TextBlock Text="Total Adj %" TextWrapping="NoWrap" TextAlignment="Center" />
</telerik:GridViewExpressionColumn.Header>
<telerik:GridViewExpressionColumn.CellTemplateSelector>
<telerik:ConditionalDataTemplateSelector>
<telerik:DataTemplateRule Condition="MAN_ADJ_PCT + MOD_ADJ_PCT < 0">
<DataTemplate>
<TextBlock Text="{Binding TotalAdjPCT, StringFormat=p0}" HorizontalAlignment="Right"
Foreground="Red"/>
</DataTemplate>
</telerik:DataTemplateRule>
</telerik:ConditionalDataTemplateSelector>
</telerik:GridViewExpressionColumn.CellTemplateSelector>
</telerik:GridViewExpressionColumn>