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VSTO Office (Excel) Add-In - WPF XAML Style, ResourceDictionary

I want to deploy my VSTO Office Excel-Add-In with Windows Installer. I created the installer and installed the add-in on the virtual PC to test it. Now I have a problem that the styles do not work, but if I debug or run it in Visual Studio, it works.

For example, I created this style:

<Style TargetType="{x:Type Button}"> <Style.Setters> <Setter Property="Background" Value="Snow" /> <Setter Property="Width" Value="50" /> <Setter Property="Height" Value="25" /> <Setter Property="Margin" Value="5" /> </Style.Setters> </Style>

Now I combine the ResourceDictionary (with the style in it) with the ResourceDictionary window:

 <Window.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="/assembly;component/UI/Resources/Style.xaml" /> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </Window.Resources>

It only works after installation, when I use the keys for styles and set the style directly in the control.

This is a ResourceDictionary with styles (Styles.xaml):

 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <Style TargetType="{x:Type Button}"> <Style.Setters> <Setter Property="Background" Value="Snow" /> <Setter Property="Width" Value="50" /> <Setter Property="Height" Value="25" /> <Setter Property="Margin" Value="5" /> </Style.Setters> </Style> </ResourceDictionary>

And here is the "Merge" -ResourceDictionary:

 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="/ExcelAddIn;component/UI/Resources/Style/Brushes.xaml" /> <ResourceDictionary Source="/ExcelAddIn;component/UI/Resources/Style/ControlTemplates.xaml" /> <ResourceDictionary Source="/ExcelAddIn;component/UI/Resources/Style/Styles.xaml" /> <ResourceDictionary Source="/ExcelAddIn;component/UI/Resources/Style/DataTemplates.xaml" /> </ResourceDictionary.MergedDictionaries> </ResourceDictionary>

To merge ResourceDictionary into Window-Resources, I tried using:

They work when I debug / run it using Visual Studio, but not after installation:

 <ResourceDictionary Source="/ExcelAddIn;component/UI/Resources/Style/Skin.xaml" /> <ResourceDictionary Source="pack://application:,,,/ExcelAddIn;component/UI/Resources/Style/Skin.xaml" /> <ResourceDictionary Source="pack://application:,,,/ExcelAddIn;v1.0.0.0;component/UI/Resources/Style/Skin.xaml" />

As a rule, they do not work:

 <ResourceDictionary Source="pack://application:,,,/UI/Resources/Style/Skin.xaml" /> <ResourceDictionary Source="/UI/Resources/Style/Skin.xaml" />
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1 answer

I think the uri problem is in the Source property. Try using Pack URI

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Source: https://habr.com/ru/post/1443238/

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