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aspx thread: Wiring an Event from a control up to a page event handler
Message #1 by "Christopher Duden" <christopher_duden@i...> on Mon, 7 Jan 2002 17:13:00
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I am attempting to wire up an event up that is declared in a control to a
handler in a page. I know I can use Event Bubbling but I would like to
do something more specific. I am using reflection to do this, I don't
know what the control will be at compile time, only at runtime. I do
know however that the control will declare this event.
Here is what I have:
System.Type workingtype = System.Type.GetType(oSnapClassView[0]
["snapasptype"].ToString().Trim());
System.Web.UI.Control oCon = Page.LoadControl("apps/" + oSnapClassView[0]
["codemanifestpath"].ToString().Trim());
MethodInfo portalcmdhandle = workingtype.GetMethod("PortalCmdHandler");
What I can't figure out is how to bind this handle to the event back to
the control I have loaded (oCon). I have tried various things -- no
glory.
This:
this.PortalEvent += (PortalCmdHandler)Delegate.CreateDelegate(typeof
(METADB_PORTAL.SnapObjCmdHandler),oCon,portalcmdhandle.Name);
fails with the error:
Description: An unhandled exception occurred during the execution of the
current web request. Please review the stack trace for more information
about the error and where it originated in the code.
Exception Details: System.ArgumentException: Error binding to target
method.
Anyone have any ideas?
I realize it is probably something simple but....
CMD
Message #2 by "Christopher Duden" <christopher_duden@i...> on Thu, 10 Jan 2002 00:13:12
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This should read:
I am attempting to wire up an event that is declared in the page
to a handler declared in a control at runtime....
Sorry about the mistake.
CMD
> I am attempting to wire up an event up that is declared in a control to
a
> handler in a page. I know I can use Event Bubbling but I would like to
> do something more specific. I am using reflection to do this, I don't
> know what the control will be at compile time, only at runtime. I do
> know however that the control will declare this event.
>
> Here is what I have:
>
> System.Type workingtype = System.Type.GetType(oSnapClassView[0]
> ["snapasptype"].ToString().Trim());
>
> System.Web.UI.Control oCon = Page.LoadControl("apps/" + oSnapClassView
[0]
> ["codemanifestpath"].ToString().Trim());
>
> MethodInfo portalcmdhandle = workingtype.GetMethod("PortalCmdHandler");
>
>
> What I can't figure out is how to bind this handle to the event back to
> the control I have loaded (oCon). I have tried various things -- no
> glory.
>
> This:
>
> this.PortalEvent += (PortalCmdHandler)Delegate.CreateDelegate(typeof
> (METADB_PORTAL.SnapObjCmdHandler),oCon,portalcmdhandle.Name);
>
> fails with the error:
> Description: An unhandled exception occurred during the execution of
the
> current web request. Please review the stack trace for more information
> about the error and where it originated in the code.
>
> Exception Details: System.ArgumentException: Error binding to target
> method.
>
>
> Anyone have any ideas?
> I realize it is probably something simple but....
>
> CMD
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