How do you bind a command to a MenuItem (WPF)?

Question

Here is my code from the View.xaml.cs:

private RelayCommand _closeCommand;
public ICommand CloseCommand
{
    get
    {
        if (_closeCommand == null)
           


        

Answer 1

for binding cross visual tree, refer to

Binding Visibility for DataGridColumn in WPF

or jsut try search BindingProxy