WPF using command and event handler

Question

I have a save button and I want to use the MVVM design pattern, but I need to close the window once the save has been done, I looked a little on the web and saw that this is a lot of work, so i decided to make the window.close() on the code behind and all the saving logic on the view model.

How can I implement a button with a command binding and also an event handler?

score 0 · Answer 1 · edited May 23 '17 at 12:28

Check out this answer which worked pretty well for me. You can pass the window itself as a command parameter and then use it in the viewmodel to close it.

Relevant XAML from that answer:

Command="{Binding CloseWindowCommand, Mode=OneWay}" 
CommandParameter="{Binding ElementName=TestWindow}"

Relevant ViewModel command handler from the same answer:

private void CloseWindow(Window window)
{
    if (window != null)
    {
       window.Close();
    }
}

You'll obviously also need to expose a command to bind to, in this case called CloseWindowCommand.

score 0 · Answer 2 · answered May 05 '14 at 05:33

0

Just define the two in the button xaml like so:

<Button Command="{Binding SaveCommand}" Click="Button_click"/>

answered May 05 '14 at 05:33

Shaaak

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WPF using command and event handler

2 Answers2