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Locking the Form

Khalid Mushtaq

Hi.
I need your help please..
I developed a form in Visual C# with a button on it. When I click that button, a sub form appears. Now I want that without processing or filling this sub form, user couldn't access the main form, this main form must be locked or somewhat else... waiting for your reply...

1 Reply

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Augustin Jianu16y ago
In the main form you should have:

private void button1_Click(object sender, EventArgs e)
{
    SubForm sf = new SubForm();
    sf.ShowDialog();
}

In the SubForm, on the FormClosing event you should have:
private void SubForm_FormClosing(object sender, FormClosingEventArgs e)
{
      // if the user didn't fill all the data needed on the subForm you don't allow him to close the subForm
      if( ! isAllDataComplete() )
            e.Cancel = true;
}