How to style GridViewColumnGroup ?

[Mike]

Hi,

How to change GridViewColumnGroup border brush ?

I tested this  :

<Style TargetType="telerik:GridViewHeaderCell">
        <Setter Property="BorderBrush">
            <Setter.Value>
                <SolidColorBrush Color="LightGray"/>
            </Setter.Value>
        </Setter>
        <Setter Property="BorderThickness" Value="0,0,0,1"/>
    </Style>

this works for headercell. How can I do the same for ColumnGroup ?

See attached picture for exemple, I want to change the color of Red borders to lightGray.

Thanks for help.

[Ivan Ivanov]

Hello Radouan,

You may try setting a style addressing CommonColumnHeader as TargetType, in order to achieve this. I have prepared an example project that illustrates how to achive this. It is attached for your reference.

Best wishes,
Ivan Ivanov
the Telerik team

[Mike]

Hello Ivan,

Thanks for reply. This works well while using the default Theme. But I use the Metro Theme.
I've modified your sample project using StyleManager.Applicationtheme = new MetroTheme().

public partial class MainPage : UserControl
    {
        public MainPage()
        {
            StyleManager.ApplicationTheme = new MetroTheme();

            InitializeComponent();

        }
    }

oops :|  I can't upload a Zip file.

you can do the change to verify.
Thanks.

[Mike]

I thank that because this value is depending on the value of MetroColors.PaletteInstance.AccentColor. The probleme for me is that I've already set this value to red color and I can't change it (for ergonomy reasons).

Any solution please ?

[Pavel Pavlov]

Hello Radouan,

To address your issue and scenarios like yours in general , we have decided to add a new property to the column groups - HeaderStyle. It will be available to you in less than a week - in the very next internal build . It will also be included in the service pack  coming shortly.

Regards,
Pavel Pavlov
the Telerik team

[Mike]

Hello Pavel,

Good news, you're the best !

I found one solution... :)

I customized the Metro theme, and change the value of the borderbrush of ColumnHeader to an other resource, Build a new dll of metro theme, and I had what I were looking for.

Thanks for all.

[Sergey]

Dear Pavel,

Can you give me a code example of HeaderStyle definition?

My second question is: How can I apply a CommonColumnHeader style to a specific GridViewColumnGroup?
I was able to create the grid as shown in current.png, but I would like the grid as shown in needed.png.

Thank you in advance,
Sergey Borodetsky

[Pavel Pavlov]

Hello Sergey,

I am afraid the current version of RadGridView does not support row spanning for common headers.

Greetings,
Pavel Pavlov
the Telerik team

[Sergey]

Dear Pavel,
Can I apply a CommonColumnHeader style to a specific GridViewColumnGroup?

Best regards,
Sergey Borodetsky

[Vanya Pavlova]

Hello Sergey,

 

You may use the HeaderStyle property of GridViewColumnGroup to achieve your goal:

  <Grid>
        <Grid.Resources>
            <Style x:Key="s1" TargetType="telerik:CommonColumnHeader">
                <Setter Property="Background" Value="Red"/>
            </Style>
        </Grid.Resources>
        <telerik:RadGridView x:Name="list">
            <telerik:RadGridView.ColumnGroups>
                <telerik:GridViewColumnGroup HeaderStyle="{StaticResource s1}"  Name="VehicleInfo" Header="Vehicle info" />
                <telerik:GridViewColumnGroup  Name="Dimensions" Header="Dimensions" />
            </telerik:RadGridView.ColumnGroups>
.....
        </telerik:RadGridView>

Greetings,
Vanya Pavlova
the Telerik team

[Maurizio]

Hi,

why a project for each question? Sometime we have to do something and resources from your site is very useful but download and run a project for simple replies are very time consuming where a copy\paste save a lot of working time.

Thanks

[Balaji]

Hi,

Can we do Row Spanning for common headers now?

 

Thanks in advance.

Balaji

[Dinko | Tech Support Engineer]

Hi Balaji,

Row spanning for common headers is still not supported by the RadGridView control. We have to not planned such improvements at the moment but you can log a feature request in our Feedback Portal and if it gathers enough votes we can implement it.

Regards,
Dinko
Progress Telerik