Using CanExecute in RelayCommand MVVM Toolkit-CodePudding

I have bound button command to one RelayCommand from MVVM Toolkit, which executes some function, with folllowing:

[RelayCommand]

private async void SomeMethod() {}

I want to prevent multiple click on the button hence,preventing multiple method calls via CanExecute parameter of RelayCommand, but I can't figure that one out.

I know that RelayCommand first checks with CanExecute if it is possible to execute command, but I do not understand how to go about implementing it.

I have searched numerous questions on the topic, but could get no where near to solution.

Edit: Also there is no SomeMethod.isRunning property.

CodePudding user response：

You just need to change void to Task.

[ObservableObject]
public partial class MainWindowViewModel
{
    [RelayCommand]
    private async Task SomeMethod()
    {
        await Task.Delay(5000);
    }
}