更新模态对话框上的父页面是否关闭？

Question

I have a window with a grid in it. This window has a button, when this button is pressed, a modal dialog is shown.

code:

    private void Edit_Click6S(object sender, RoutedEventArgs e)
    {
        TextEditWindow editWindow = new TextEditWindow();
        editWindow.ShowDialog();
    }

When the user is finished with this dialog, the following code is called:

    Window.Close()

But the grid of the parent window is not updated. Is there a way to reinitialize the parent windows grid when the child dialog is closed? Is so, How?

Answer 1

Since dialogs block execution until they are closed, you can populate the grid directly after your ShowDialog() call:

private void Edit_Click6S(object sender, RoutedEventArgs e)
{
    TextEditWindow editWindow = new TextEditWindow();
    editWindow.ShowDialog();
    PopulateGrid();
}

Otherwise you can handle the dialog's Closed event

editWindow.Closed += dialog_Closed;    

private void dialog_Closed(object sender, System.EventArgs e)
{
    PopulateGrid();
}

Answer 2

To elaborate my comment a little more; this is a common question and can be a bit confusing. But use delegates to manage data between the forms. Here is some code. I can't promise it is ready to compile but it should help show you how to do this correctly.

 public partial class MainWindow : Window
{
    public delegate void MenuClickedDelegate(); 
    public MainWindow()
    {
       InitializeComponent();
    }
    private void MenuItem_Click(object sender, RoutedEventArgs e)
    {
       YourDialog yourDialog = new YourForm();
       yourDialog .MenuClickCallback = new MenuClickedDelegate(this.DoSomething);
       yourDialog .ShowDialog();
    }
    private void DoSomething()
    {
    }
}

Then for your dialog:

public partial class YourDialog  : Window
{
     public MainWindow.MenuClickedDelegate MenuClickCallback;
     public YourDialog()
     {
         InitializeComponent();
     }

     private void Edit_Click6S(object sender, RoutedEventArgs e)
     {
         this.close();
         MenuClickCallback;
     }
}