Re: Active Form or Form Focus

  • Thread starter Thread starter Brian P. Hammer
  • Start date Start date
B

Brian P. Hammer

Can you point me in a direction where I might see some examples of creating
form handlers.

Thanks,
Brian P. Hammer


Ian Cooper said:
How do I figure out when a MDI form receives the
focus. I need to update and refresh a form when it receives the focus
after some changes on another open form.
Click to expand...

You need to set up a handler for the form's Activate event.
Ian Cooper
wwww.dnug.org.uk
 
Can you point me in a direction where I might see some examples of creating
form handlers.
Click to expand...

Hi Brian,
The Windows Form Designer will help you do this. In C# you the events tab (lightning flash) of the Property Pages to add event handlers. Not sure about VB, I think that you use the bar on top of the editor.
The designer adds code to InitializeComponent() to subscribe to the event, so in this case the C# would be
this.Activated += new System.EventHandler(this.MDIChild_Activated);
assuming that the method on your class which encapsulates the delegate is:
private void MDIChild_Activated(object sender, System.EventArgs e)
{

}
There is a VB/C# friendly example on http://samples.gotdotnet.com/quickstart/winforms/doc/WinFormsMDI.aspx
(about halfway down the page entitled Child Window Activation)
HTH,
Ian Cooper
wwww.dnug.org.uk
 
Can you point me in a direction where I might see some examples of creating
form handlers.
Click to expand...

Oops my bad you need to MdiChildActivate event in this case not the Activated event.

Ian Cooper
wwww.dnug.org.uk
 
Thanks Ian. I play around with it and see what I can come up with.

--
Brian P. Hammer
Ian Cooper said:
Can you point me in a direction where I might see some examples of creating
form handlers.
Click to expand...

Hi Brian,
The Windows Form Designer will help you do this. In C# you the events tab
(lightning flash) of the Property Pages to add event handlers. Not sure
about VB, I think that you use the bar on top of the editor.
The designer adds code to InitializeComponent() to subscribe to the event,
so in this case the C# would be
this.Activated += new System.EventHandler(this.MDIChild_Activated);
assuming that the method on your class which encapsulates the delegate is:
private void MDIChild_Activated(object sender, System.EventArgs e)
{

}
There is a VB/C# friendly example on
http://samples.gotdotnet.com/quickstart/winforms/doc/WinFormsMDI.aspx
(about halfway down the page entitled Child Window Activation)
HTH,
Ian Cooper
wwww.dnug.org.uk
 
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