WPF-Prism CanExecute method not being called

Question

I am coding a simple login UserControl with two TextBoxes (Username and Password) and a Login button. I want the Login button to be enabled only when the username and password f

Answer 1

Here's a little workaround for Prism (tested with Prism.Core 7.1.0.431):

public class RelayCommand : DelegateCommand
{
    public RelayCommand(Action executeMethode) : base(executeMethode)
    {

    }

    public RelayCommand(Action executeMethode, Func canExecuteMethode) : base(executeMethode, canExecuteMethode)
    {

    }

    public override event EventHandler CanExecuteChanged
    {
        add { CommandManager.RequerySuggested += value; }
        remove { CommandManager.RequerySuggested -= value; }
    }
}