How do I invalidate an Event

[John Taylor]

How do I invalidate the click event of a sub classed
button from the parent class.

I've created a button usercontrol for my windows form, and
in the click event in the parent if got a confirmation
msgbox. If the user pressed 'cancel', I don't want
the 'click' event of the child control to fire.

Please help, I've sent 2 days on this now and my brain is
hurting.

I know its something to do with inheritance but can't work
out what.

please help
John

[Horatiu Ripa]

MyUserControlCl ass - the UC class
userControlInst ance - the instance in the form
MyUserControlCl ass_Click - the handler method for the Click event

System.Reflecti on.EventInfo UserControlEven tInfo = (typeof(MyUserC ontrolClass)).G etEvent("Click" );
System.Reflecti on.MethodInfo removeMethod = UserControlEven tInfo.GetRemove Method();
removeMethod.In voke(userContro lInstance,new Object[] {new System.EventHan dler(userContro lInstance.MyUse rControlClass_C lick)});
but for that I need to make public in MyUserControlCl ass the delegated method MyUserControlCl ass_Click because the isolation level make them invisible.
probably with a more complex invoke you won't need this.

--
Horatiu Ripa

"John Taylor" <j.*******@else vier.com> wrote in message news:05******** *************** *****@phx.gbl.. .

How do I invalidate the click event of a sub classed
button from the parent class.

I've created a button usercontrol for my windows form, and
in the click event in the parent if got a confirmation
msgbox. If the user pressed 'cancel', I don't want
the 'click' event of the child control to fire.

Please help, I've sent 2 days on this now and my brain is
hurting.

I know its something to do with inheritance but can't work
out what.

please help
John

[John Taylor]

Thank you!
Very much appreciated!
John

-----Original Message-----
MyUserControlC lass - the UC class
userControlIns tance - the instance in the form
MyUserControlC lass_Click - the handler method for the Click event
System.Reflect ion.EventInfo UserControlEven tInfo = (typeof (MyUserControlC lass)).GetEvent ("Click");System.Reflect ion.MethodInfo removeMethod = UserControlEven tInfo.GetRemove Method();removeMethod.I nvoke(userContr olInstance,new Object[] {new System.EventHan dler
(userControlIns tance.MyUserCon trolClass_Click )});

but for that I need to make public in MyUserControlCl ass the delegated method MyUserControlCl ass_Click because the
isolation level make them invisible.probably with a more complex invoke you won't need this.

--
Horatiu Ripa

"John Taylor" <j.*******@else vier.com> wrote in message

news:05******** *************** *****@phx.gbl.. .

How do I invalidate the click event of a sub classed
button from the parent class.

I've created a button usercontrol for my windows form, and in the click event in the parent if got a confirmation
msgbox. If the user pressed 'cancel', I don't want
the 'click' event of the child control to fire.

Please help, I've sent 2 days on this now and my brain is hurting.

I know its something to do with inheritance but can't work out what.

please help
John

[John Taylor]

Can any of you C# ninjas convert the solution into vb?

If not cool, i'll go the msdn route.
Thamks again
John

-----Original Message-----
Thank you!
Very much appreciated!
John

-----Original Message-----
MyUserControl Class - the UC class
userControlIn stance - the instance in the form
MyUserControl Class_Click - the handler method for theClick event

System.Reflec tion.EventInfo UserControlEven tInfo = (typeof(MyUserControl Class)).GetEven t("Click");

System.Reflec tion.MethodInfo removeMethod =UserControlEve ntInfo.GetRemov eMethod();

removeMethod. Invoke(userCont rolInstance,new Object[]

{newSystem.EventHa ndler
(userControlIn stance.MyUserCo ntrolClass_Clic k)});

but for that I need to make public in MyUserControlCl assthe delegated method MyUserControlCl ass_Click because

theisolation level make them invisible.

probably with a more complex invoke you won't need this.

--
Horatiu Ripa

"John Taylor" <j.*******@else vier.com> wrote in message

news:05******* *************** ******@phx.gbl. .. How do I invalidate the click event of a sub classed
button from the parent class.

I've created a button usercontrol for my windows form,and in the click event in the parent if got a confirmation
msgbox. If the user pressed 'cancel', I don't want
the 'click' event of the child control to fire.

Please help, I've sent 2 days on this now and my brainis hurting.

I know its something to do with inheritance but can'twork out what.

please help
John

.