How to open a new window in C# MVVM

Asked Nov 21 '14 at 10:40

Active Nov 21 '14 at 10:40

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I have tried for 2 days how to open a new window in WPF MVVM.

I have read a lot of articles and questions on stackoverflow. In this question WPF MVVM - How to Show a view from MainWindowViewModel upon Clicking on button there was an answer where mak gave 4 examples, and any of it doesn't want to work :(

for example I have this code:

private void Button_Click(object sender, RoutedEventArgs e)
    {
        Ranking view = new Ranking();
        view.Show();
    }

where Ranking is a view and I get an error like missing assembly reference and no extension method 'Show' accepting a first agrument. In mediator pattern I've got also error like:

The name 'Messenger' does not exist in the current context
and The type or namespace name 'AddCustomerMessage' could not be found (are you missing a using directive or an assembly reference?)

Please help I don't have any ideas how to fix it or if somebody have an example project to download please share it.

Thanks a lot!

edited May 23 '17 at 12:20

Community

asked Nov 21 '14 at 10:40

Icet

1

event handlers is not great idea for MVVM-pattern, especially handlers contains some business-logic. It is an article about event handling in MVVM: http://social.technet.microsoft.com/wiki/contents/articles/18199.event-handling-in-an-mvvm-wpf-application.aspx – al_amanat Nov 21 '14 at 10:47
yea Ok but why I get error in view.Show()? – Icet Nov 21 '14 at 12:32
Can you provide code of your RankingView? – Sasha Nov 24 '14 at 10:12
I don't have anything there, should i add something there? – Icet Nov 24 '14 at 10:38
@Icet how do you initialize Ranking? – Sasha Nov 24 '14 at 10:41

How to open a new window in C# MVVM

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