this.Control不起作用

Question

using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Forms;

namespace WpfTestApp
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            string myName;
            myName = "textBox1";
            this.Controls.Find(myName);
        }
    }
}

The above code returns the following error:

Error 1 'WpfTestApp.MainWindow' does not contain a definition for 'Controls' and no extension method 'Controls' accepting a first argument of type 'WpfTestApp.MainWindow' could be found (are you missing a using directive or an assembly reference?)

this. doesn't offer Controls as an option through intellisense. But I've seen this.Contols.find(<name of control>) in code examples before. But I can't seem to get it to work.

Any help would be appreciated, I'm using c# with Visual Studio 2010

Answer 1

Controls is a WinForms property, but you are using WPF.

It's all completely different in WPF. For example, the Window class does not support children which is why there is no Controls property.

Without knowing what you are trying to achieve it's hard to recommend the right solution.

Answer 2

The code you've seen before is for Windows Forms and you're trying to work with WPF. You might want to try :

this.FindName(myName);

This is the FrameworkElement.FindName method and will find something that has an x:Name associatd with it.

Answer 3

Use:

this.FindName(myName);

This will work if you have assigned an x:name to your control.

Check out this answer as this is a more robust solution.