Access parent window from User Control

Question

I am trying to access parent window from user control.

userControl1 uc1 = new userControl1();

mainGrid.Children.Add(uc1);

through this co

Answer 1

Modify the constructor of the UserControl to accept a parameter of MainWindow object. Then pass the MainWindow object to the UserControl when creating in the MainWindow.

MainWindow

public MainWindow(){
    InitializeComponent();
    userControl1 uc1 = new userControl1(this);
}

UserControl

MainWindow mw;
public userControl1(MainWindow recievedWindow){
    mw = recievedWindow;
}

Example Event in the UserControl

private void Button_Click(object sender, RoutedEventArgs e)
{
    mw.mainGrid.Children.Add(this);
}