用FolderBrowserDialog选择一个文…

 private void BrowseBtn_Click(object sender,RoutedEventArgs e)
       {
           System.Windows.Forms.FolderBrowserDialog folderBrowserDialog = newSystem.Windows.Forms.FolderBrowserDialog();
           System.Windows.Forms.DialogResult result=folderBrowserDialog.ShowDialog();
           if (result == System.Windows.Forms.DialogResult.OK) {
               this.BrowserPathTextBox.Text =folderBrowserDialog.SelectedPath;
           }                         
       }