How to run ViewModel command after displayalert validation in Xamarin - xaml

Question

I have a delete object command working in my ViewModel. The command is bound to the button. So far, so good. When I click the button the object is deleted from the db. Now, obviously, this needs to be validated, so I am using DisplayAlert to show a "Are you sure you want to delete?" to the user. This displays, but the item deletes anyway on the button click which makes sense. I am struggling to understand how to only run my command in the ViewModel if the user chooses "Yes".
XAML Button:
<Button Text="Delete player" Command="{Binding DeleteCommand}" Clicked="DeletePlayerEvent"></Button>
Clicked Event:
private async void DeletePlayerEvent(object sender, EventArgs e)
{
bool answer = await DisplayAlert("Notification", "Are you sure you want to delete this player?", "Yes", "No");
//if (answer == true)??????
// {
//Can I run the command from here?
//}
}
ViewModel Command
public Command DeleteCommand
{
get
{
return new Command(async () =>
{
var playerServices = new PlayerServices();
await playerServices.DeletePlayerAsync(_Player.Id);
});
}
}

Answer 1

The problem here is that you are doing Command binding and Event subscribing together.
These both are getting fired individually and not dependent to each other.
One way you can wire them up together is call the ViewModel's DeleteCommand from your button click event when the user selected "Yes"
To get hold of the DeleteCommand property in your click event (assuming that is written in your codebehind file):
var viewModel = this.BindingContext as YouViewModel
viewModel.DeleteCommand.Execute();
Hope that helps!