How to assign a dynamic resource style in code?

c# wpf xaml styles code-behind
Edward Tanguay picture Edward Tanguay · Nov 18, 2009 · Viewed 58.3k times · Source

I want to produce in code the equivalent of this in XAML:

<TextBlock
Text="Title:"
Width="{Binding FormLabelColumnWidth}"
Style="{DynamicResource FormLabelStyle}"/>

I can do the text and the width, but how do I assign the dynamic resource to the style:

TextBlock tb = new TextBlock();
            tb.Text = "Title:";
            tb.Width = FormLabelColumnWidth;
            tb.Style = ???

Answer

Samuel Jack picture Samuel Jack · Nov 18, 2009

You should use FrameworkElement.SetResourceReference if you want true DynamicResource behaviour - ie updating of the target element when the resource changes.

tb.SetResourceReference(Control.StyleProperty, "FormLabelStyle")

Related questions

Binding custom dependency property to custom WPF style

I have an issue when designing a inherited Expander. My intention is to have a progress bar behind the toggle button and text in the default Expander header. I have this XAML code which gives me the progress bar in …

Read More
Is it possible to use a converter within a style?

Is it possible to use a converter within a style? For instance I am trying to create a styled TextBlock whose text resizes based on the ActualHeight property of the TextBlock. The resizing would be done via a converter.

Read More
BasedOn="{StaticResource {x:Type TextBox}}" in Code Behind for Style

How can you set the following in code behind? <Style TargetType="{x:Type TextBox}" BasedOn="{StaticResource {x:Type TextBox}}"> I'm using a Theme merged in App.xaml. It works great for all Controls but when I define a …

Read More