C# Program can't find XAML page in DLL

Question

I have a program with a window declared as StartWnd (in the main assembly) derived from a class, WzdBase in a DLL which in turn is derived from System.Windows.Window. StartWnd doesn't provide its own XAML page. Rather that's in the DLL and provided by WzdBase as WzdBase.xaml. However, I'm getting a runtime exception that it can't find the page in the DLL. The code in question was all generated by the XAML compiler.

Does this happen much? What can I do about it?

Answer 1

Hi,@Will Pittenger.

Reason: You could enter InitializeComponent by pressing Ctrl+left key to view the following code

System.Uri resourceLocater = new System.Uri("/t;component/base.xaml", System.UriKind.Relative);

That is, the program will use the Uri to find the xaml file it should be associated with. If it cannot find the file, it will report the error you see.(The file does not appear to be editable manually).

 

Solution

Way 1(Recommend):

Create a class without xaml to define the window.For example, the following code is just a simple class.

    public class newBase:Window

    {

        public newBase()

        {

            StackPanel stackPanel = new StackPanel();

            stackPanel.Background = Brushes.DarkGray;

            Button button =  new Button();

            button.Content = "HAHA";

            button.Width = 200;

            button.Height = 50;

            button.HorizontalAlignment = HorizontalAlignment.Center;

            stackPanel.Children.Add(button);

            this.AddChild(stackPanel);

        }

    }

Then, reference it in the t project and derive it to inherit newBase.(At this time, derive does not need to call InitializeComponent() in the constructor;)

 

Way 2:

Copy base.xaml (delete base.xaml.cs) to the same folder as derived.cs

 

Adjust the code

class derived : g._base

{

    public derived()

    {

        InitializeComponent();

    }

}

 

In base.xaml (project t) you could continue to define your page

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