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Embed a System.String in XAML


Is there a way to embed a string in XAML, give it and ID and refer to it later.

I have tried:

    <Window x:Class="WpfApp1.Window1"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:System="clr-namespace:System;assembly=mscorlib"
        Title="Window1" Height="300" Width="500">
        <Grid>
            <System:String>Test</System:String>
        </Grid>
    </Window>

And get error:
Cannot add instance of type 'String' to a collection of type 'UIElementCollection'. Only items of type 'UIElement' are allowed.

Could I do this if I nested the String somewhere else in the XAML? or inside a non UI element? Then do I just give it a Name attribute?


Solution

  • You should use Window.Resources

    Here's an example for Page, in your case it will be Window.Resources tag:

    <Page
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:System="clr-namespace:System;assembly=mscorlib">
      <Page.Resources>
        <System:String x:Key="MyString">Hello</System:String>
      </Page.Resources>
      <Grid>  
        <TextBlock Text="{StaticResource MyString}"></TextBlock>
      </Grid>
    </Page>