Set as default window in WPF application

By default you will get App.xaml as follows:

<
Application x:Class="Login_WPF.App" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
StartupUri="MainWindow.xaml">
   <Application.Resources></Application.Resources>
</
Application

In the above App.xaml default window is "Main Window". if you want to open "Registration" window first then change the StartUpUrl property of the application in App.xaml like as follows:

<
Application x:Class="Login_WPF.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
StartupUri="Registration.xaml">
   <Application.Resources></Application.Resources>
</
Application>
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