OnApplyTemplate not called in Custom Control

Question

I have a Custom Control which uses some PART controls:

 [TemplatePart(Name = \"PART_TitleTextBox\", Type = typeof(TextBox))]
    [TemplatePart(Name = \"PART_Titl         


        

Answer 1

For anyone else who might stumble upon this post, I was having the same issue and I managed to solve it by adding the following into the AssemblyInfo.cs of the project containing my custom control:

[assembly: ThemeInfo(
    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
    //(used if a resource is not found in the page, 
    // or application resource dictionaries)
    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
    //(used if a resource is not found in the page, 
    // app, or any theme specific resource dictionaries)
)]

My control's template is located in the file Theme/Generic.xaml in the same project as the control.