Error in having 2 App.xaml in same solution

Cynthia

9y1.6k

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I have wpf mvvm project structure Like this-

HomeApplication1(solution).

HomeApp(project1)

LoginApp(startup project)

UIApp(project 2)

Earliear 'HomeApp' was startup project & Startup URI="MainWindow.xaml". I addeed the loginApp project for login of users & made it as startup project . Now there are two app.xaml file in my solution. One for LoginApp & another that was there previously existing. After login screen , i have to open homeapp screen . When i am trying to call homeapp window its throwing exception.

homeappWindow app=new homeappWindow; app.Show();

app.show() give exception at static resource loading.

My questions are -:

1.Can we keep two app.xaml in same solution or Do i need to delete one app.xaml file from project ? If yes then where & how i will add information of that file ?

2.How to handle static resource loading if i am calling homewindow app from loginapp as I am getting error at InitializeComponent();? Any help is appreciated!

2 Replies

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Amit Gupta9y ago
Accepted answer
Hey

Yes, there can be multiple app.xaml file in your solution

To call the other window, do the following

1. Set your startup project (from your solution explorer).

2. Goto app.xaml of that selected project and remove the startupUri line amd generate a startup event

3. Goto app.xaml.cs
Write your calling window inside startup event.

Have a look to the below link
https://stackoverflow.com/questions/1945843/how-to-change-startupuri-of-wpf-application
Juan Francisco Morales Larios9y ago
Hi Cynthia, you should keep one App.xaml in your project, but you can changed start mode, in this config file.

In a normal startup you configure the window (form) initialize:

You can change this behavior, for a start event (StartUp) with code, and you have the initialize control: