如何从用户控件 WPF C# 访问父 window 中的按钮

Question

In my MainWindow ,

• I have a button btnMainMenu
• I have a user control NavigationWindow

from the user control, I want to change the visibility of the btnMainMenu form the MainWindow . I have tried most of the steps suggested in other posts but none of them seems to work for me.

I tried this line of code but got error.

System.Windows.Controls.Button btn = (this.Parent as MainWindow).Controls["btnMainMenu"] as Button;

Answer 1

I would recommend to please go through some design patterns. This is not supposed to be a recommended way to get an object and changed the visibility.

Have a view and a view model make some dependency and change some property of view model.

Just for your learning, I can tell you one of the way but definitely would not recommend it in your product.

You can use recursion on the child controls of the parent control till you find out the button control you need.