Select folder dialog WPF

Question

I develop a WPF4 application and in my app I need to let the user select a folder where the application will store something (files, generated reports etc.).

My requ

Answer 1

MVVM + WinForms FolderBrowserDialog as behavior

public class FolderDialogBehavior : Behavior
{
    public string SetterName { get; set; }

    protected override void OnAttached()
    {
        base.OnAttached();
        AssociatedObject.Click += OnClick;
    }

    protected override void OnDetaching()
    {
        AssociatedObject.Click -= OnClick;
    }

    private void OnClick(object sender, RoutedEventArgs e)
    {
        var dialog = new FolderBrowserDialog();
        var result = dialog.ShowDialog();
        if (result == DialogResult.OK && AssociatedObject.DataContext != null)
        {
            var propertyInfo = AssociatedObject.DataContext.GetType().GetProperties(BindingFlags.Instance | BindingFlags.Public)
            .Where(p => p.CanRead && p.CanWrite)
            .Where(p => p.Name.Equals(SetterName))
            .First();

            propertyInfo.SetValue(AssociatedObject.DataContext, dialog.SelectedPath, null);
        }
    }
}

Usage

Blogpost: http://kostylizm.blogspot.ru/2014/03/wpf-mvvm-and-winforms-folder-dialog-how.html