How to bubble an event from user control to form?

[Sam_Sorrow]

I have a previously selfcreated user-control which contains a

picturebox and some additional code, also included is a method

that changes the displayed Image in the Picturebox on Clicking.

This works fine so far.

Now I place this user control on a new form and i want it to fire a

Click-Event on my form when a user clicks it. The Image in the

Pictuebox changes on clicking but the Eventhandler on my form

doesnt fire anything on clicking! I need a possibility for the users

of my user control to write their own code for a click-event on

that control.

I read about the possibility to bubble events from a user control

to its parent control but it was related to web forms. Is it

equivalent to Windows forms? If it is, how does it

work because i dont get to the point yet...

Thanks in advance for your help,

Jan

[HJB417]

what I would do is, make an event in the class of the selfcreated user-control called PictureBoxClicked, then add a private method called OnPictureBoxClicked(object sender, EventArgs e), and add OnPictureBoxClicked(this, EventArgs.Empty) to the last line of whatever code handles the OnClick event in the selfcreated user-control.

 

OnPictureBoxClicked would look like this

 

OnPictureBoxClicked(object sender, EventArgs e)

{

PictureBoxClicked(sender, e);

}

[Sam_Sorrow]

Dont understand that proposal

 

I cannot follow your proposal. How can I catch the Click event

within my parent form that contains the user control?

[HJB417]

The parent form would need to listen to the event.

 

inside your parent form, you would need to do something like

 

selfCreatableUserControl myControl = new selfCreatableUserControl();

 

//tell the control what method(s) you want invoked after the control's picture box has been clicked and the image has changed

selfCreatableUserControl.PictureBoxClicked += new EventHandler(UserControlPictureClicked);

[Sam_Sorrow]

still confused

 

Many thanks so far, but how do I add an event to my user control

class? I think to do this a need a delegate to?

still confused,

jan

[Sam_Sorrow]

Success

 

Yes, now my code is working! Thank you very much for your help!

Jan

[VBAHole22]

Could you post the code that you got to work?

 

I'm trying to get this done 2.0 style and I'm having difficulty registering the event on the aspx page because of the partial class business