Set Property HeaderCellStyle for GridViewDataColumn in App.xaml

[Vlad]

Hello. 

When I set property HeaderCellStyle to one control, the style is set.

 <telerik:RadGridView ColumnWidth="*" ItemsSource="{Binding PagedSource, ElementName=RadDataPager}">
     <telerik:RadGridView.Columns>
          <telerik:GridViewDataColumn Header="{Binding Source={StaticResource ResProvider}, Path=cLeng, Mode=OneWay}" 
                                                          DataMemberBinding="{Binding Length}"  HeaderCellStyle="{StaticResource GridViewHeaderCellStyle1}" /> -->
    </telerik:RadGridView.Columns>
</telerik:RadGridView>

But when i move this property to App.xaml file, it doesn't work

<Style TargetType="telerik:GridViewDataColumn">
     <Setter Property="HeaderCellStyle" Value="{StaticResource GridViewHeaderCellStyle1}"/>
</Style>

Can you show me the reason?

[Dimitrina]

Hi,

Would you please try applying an implicit Style targeting the GridViewHeaderCell element directly?
For example:

<Style TargetType="telerik:GridViewHeaderCell">
    <Setter Property="Background" Value="Red"/>
</Style>

That way it will be applied to all elements of type GridViewHeaderCell.

Regards,
Dimitrina
Telerik

[Vlad]

Dimitrina, thank you for your answer.

Your example works. But I want to switch off Over and Focus events. 

[Dimitrina]

Hello,

You can consider editing the template of GridViewHeaderCell to remove specific visual states. You can follow this article on two different approaches on how to extract the ControlTemplates.

Regards,
Dimitrina
Telerik

[Vlad]

I have already had style in file GridViewDataColumn.Style.xaml.

 <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="Style/GridViewDataColumn.Style.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>

So I want to set this style to all GridViewDataColumn in one place (in App.xaml). Like

<Style TargetType="telerik:GridViewDataColumn">
     <Setter Property="HeaderCellStyle" Value="{StaticResource GridViewHeaderCellStyle1}"/>
</Style>

But this doesn't work. Only works when I set property to each control. Like

<telerik:GridViewDataColumn DataMemberBinding="{Binding Length}"  HeaderCellStyle="{StaticResource GridViewHeaderCellStyle1}" />