The component does not have a resource identified by the uri

Question

I want to create a Generic DataGrid to use on all my Views/UserControls.

This is my structure:

Class Library called \"Core\":

Answer 1

The reason you are getting this error is because the way InitializeComponent that is implemented (in VS 2010) will always search in the derived class's assembly.

Here is InitializeComponent:

/// <summary>
/// InitializeComponent
/// </summary>
[System.Diagnostics.DebuggerNonUserCodeAttribute()]
[System.CodeDom.Compiler.GeneratedCodeAttribute("PresentationBuildTasks", "4.0.0.0")]
public void InitializeComponent() {
    if (_contentLoaded) {
        return;
    }
    _contentLoaded = true;
    System.Uri resourceLocater = new System.Uri("/WpfApplication1;component/mainwindow.xaml", System.UriKind.Relative);

    #line 1 "..\..\..\MainWindow.xaml"
    System.Windows.Application.LoadComponent(this, resourceLocater);

    #line default
    #line hidden
}

The line where it looks up your XAML resource is System.Windows.Application.LoadComponent(this, resourceLocator). And this most probably fails because equivalent of 'this.GetType().Assembly' is used to determine which assembly to search for the resource identified by the relative Uri. And 'this.GetType()' does get the derived type of the object, not the type of the class where the code is implemented.

PS. Is this a bug? I do not know...

Answer 2

I received the same error when using Visual Studio 2013.

The component does not have a resource identified by the uri

Tried:
Cleaning and rebuilding the solution - did not work.
Closing and opening Visual Studio - did not work.

Solution:
Went into the projects bin directory and cleared out all files.
Ran the project again and worked fine.

Open the Package Manager Console which will open in the root directory of your Solution and run the following powershell command:

Get-ChildItem -inc bin,obj -recurse | Remove-Item -recurse -force -EA SilentlyContinue