CODEWITHSUNDEEP
c#wpfwinforms
xarzu
xarzu

Reputation: 9479

How do I work with WIndows Forms in WPF?

How do I work with WIndows Forms in WPF?

In my WPF program I created a Windows Form class. In this Form, I placed an OK button and I went into the properties of the button and set the DialogResult to OK. Now, I am calling this Dialog (Window Form) from the MainWindow.xaml.cs:

     DialogResult dres;
     dres = form.ShowDialog();
     if (dres != DialogResult.OK) return;

The compiler is complaining:

Error   3   'System.Nullable<bool>' does not contain a definition for 'OK' and no extension method 'OK' 
accepting a first argument of type 'System.Nullable<bool>' could be found (are you missing a using directive 
or an assembly reference?)

Upvotes: 1

Views: 1506

Answers (2)

Hans Passant
Hans Passant

Reputation: 941208

The compiler is finding another definition of DialogResult, probably somewhere in your code. Spell its name out completely to avoid the ambiguity:

 System.Windows.Forms.DialogResult dres;
 dres = form.ShowDialog();
 if (dres != System.Windows.Forms.DialogResult.OK) return;

Upvotes: 2

Jeff LaFay
Jeff LaFay

Reputation: 13350

That's because you should compare the DialogResult property of the form object, not the object it's self. Replace it with this and it should work:

if( dres.DialogResult != DialogResult.OK ) return;

Upvotes: 0

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