DialogResult contains no extension of '.OK'

Question

I'm trying to let the user choose a folder, here is my code

using (var fbd = new FolderBrowserDialog())
{
    fbd.RootFolder = Environment.SpecialFolder.MyComputer;

    DialogResult result = fbd.ShowDialog();

    if (result == DialogResult.OK)
    {
        //Code
    }
}

However, it appears that DialogResult contains no extension of .OK, I've looked around at some other questions, however none of them seem to work.

Answers tried: DialogResult.OK on SaveFileDialog not work, DialogResult with FolderBrowserDialog in WPF.

I'm probably missing something very obvious...

You have a variable, member or class that's named `DialogResult`. Prepend the namespace. — CodeCaster, Dec 22 '17 at 09:43
Have you added the namespace? if not try System.Windows.Forms.DialogResult.OK — Jasper, Dec 22 '17 at 09:47
@SirRufo Could you elaborate? From what I can tell FolderBrowserDialog is winforms (see also https://msdn.microsoft.com/de-de/library/system.windows.forms.folderbrowserdialog(v=vs.110).aspx). Furthermore, when I tried his code, I had to add the System.Windows.Forms.dll assembly. — Micha Wiedenmann, Dec 22 '17 at 09:55
@SirRufo please fix the other unrelated changes, that you rolled back which are still valid. — Micha Wiedenmann, Dec 22 '17 at 09:56
@MichaWiedenmann Yes the dialog is WinForms and it is used inside a WPF application — Sir Rufo, Dec 22 '17 at 09:56
@SirRufo I acknowledge that it is used inside a WPF application. I disagree with your opinion though. I think this should be tagged as Winforms. — Micha Wiedenmann, Dec 22 '17 at 09:57
@SirRufo, why do you put [Fixed](https://meta.stackexchange.com/q/116101/299295) in question title? — Sinatr, Dec 22 '17 at 09:59
@Sinatr I did not put anything into this question. I did only a rollback from a wrong edit. Check the history — Sir Rufo, Dec 22 '17 at 10:00
@SirRufo, my bad, sorry. I'll keep comment with link for OP. — Sinatr, Dec 22 '17 at 10:06

Salah Akbari · Answer 1 · 2017-12-22T10:36:27.677

You need to add a reference to using System.Windows.Forms;. To do this:

In Solution Explorer, right-click on the References node and choose Add Reference.

Find the System.Windows.Forms and then choose the OK button.

And then first add this to your using directive:

using System.Windows.Forms;

And then:

using (var fbd = new FolderBrowserDialog())
{
    fbd.RootFolder = Environment.SpecialFolder.MyComputer;

    DialogResult result = fbd.ShowDialog();

    if (result == System.Windows.Forms.DialogResult.OK)
    {
        //Code
    }
}

score -3 · Answer 2 · answered Dec 22 '17 at 09:49

-3

MessageBoxResult result = MessageBox.Show("Your Message here", "Your caption", MessageBoxButton.YesNo, MessageBoxImage.Warning <= icon required, MessageBoxResult.No <= default result);

if (result == MessageBoxResult.Yes)
{
    return;
}

answered Dec 22 '17 at 09:49

stuicidle

297
1
8

While this code might answer the question, it is usually considered good practice to add an explanation of what your code does. This allows for developers who are not knowledgeable in this area to understand what is going on in the code and helps them to learn how to solve the problem by them selves in the future. – Caleb Kleveter Dec 22 '17 at 13:41

DialogResult contains no extension of '.OK'

2 Answers2