Feedback between Forms

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(2)
Thanks, it works now by according to your great comments(answer).

(1)
Hi, I am writing a Windows Form application.
When clicking a button (button A) on Main form (form A), I create a New form (form B) from Main form (form A).

The question is:
How can form A know form B is closed, so that form A can automatically do some process?

Posted 8-Jun-10 0:10am

Sports Kuo

Updated 8-Jun-10 18:02pm

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Dylan Morley · Accepted Answer · 2010-06-08T00:23:00

Have Form A subscribe to FormClosing event of FormB:

Example:

C#

public partial class FormA : Form
{
    FormB b;
    public FormA()
    {
        InitializeComponent();
        b = new FormB();
        b.FormClosed += new FormClosedEventHandler(b_FormClosed);
        b.Show();
    }
    void b_FormClosed(object sender, FormClosedEventArgs e)
    {
        MessageBox.Show("Form B Has now closed");
    }
}

prasadbuddhika · Accepted Answer · 2010-06-08T02:03:00

Solution 2

yes you can use the above method if it matches to your requirement , but if the form B is not created with in the form A you can use custom event to catch the B forms close method .

Posted 8-Jun-10 2:03am

prasadbuddhika

Comments

Henry Minute 8-Jun-10 9:35am

The OP clearly stated that Form B WAS created in Form A. So why are you replying in this way?