Bernhard Hagmann's Blog

Situation

You copied XAML files in Visual Studio.

Problem

Visual Studio now can’t compile anymore, reporting that the InitializeComponent() method in the code-behind of your XAML files does not exist in the current context.

Solution

The build action of your XAML files has probably changed to “Resource”. Change it (back) to “Page”.

Sources

• http://stackoverflow.com/questions/954861/why-can-visual-studio-not-find-my-wpf-initializecomponent-method