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Using the Office2016 theme resources

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Patrick
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Patrick asked on 28 Jan 2020, 05:47 AM

Hello,

I'm trying to use the Office2016 theme colors in one of my controls.

To do this, I've used the following XAML:

<ResourceDictionary
  xmlns:tk="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls"
  xmlns:osctrl="clr-namespace:OrdinaSoft.Windows.Controls">
 
  <ResourceDictionary.MergedDictionaries>
    <tk:Office2016ResourceDictionary />
  </ResourceDictionary.MergedDictionaries>
 
  <Style TargetType="osctrl:osRadGroupBox">
    <Setter Property="BorderBrush"           Value="{StaticResource BasicBrush}" />
    <Setter Property="HeaderBrush"           Value="{StaticResource AccentBrush}" />
    <Setter Property="HeaderForeground" Value="{StaticResource MainBrush}" />
  </Style>
 
</ResourceDictionary>

 

Unfortunately, this doesn't work! When I run the application I have the following error: "Cannot find resource named 'BasicBrush'. Resource names are case sensitive."

If I look with the debugger just after the resource dictionary is loaded, I can see the resources defined, including BasicBrush!

If I define myself the brushes, with "<Brush x:Key="AccentBrush">#FF2A579A</Brush>" for example, it works correctly.

Why can't I use the Office2016 resources directly?

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Sia
Telerik team
answered on 30 Jan 2020, 10:22 AM

Hello,

I would suggest a different approach, which may seem more complex but actually is the same as the one which we use to create our themes.

Instead of trying to set brushes as StaticResource, just use them as follows:

<Style TargetType="osctrl:osRadGroupBox">
    <Setter Property="BorderBrush" Value="{tk:Office2016Resource ResourceKey=BasicBrush}" />
    <Setter Property="HeaderBrush" Value="{tk:Office2016Resource ResourceKey=AccentBrush}" />
    <Setter Property="HeaderForeground" Value="{tk:Office2016Resource ResourceKey=MainBrush}" />
</Style>

I hope this helps.

Regards,
Sia
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