This is a similar technique to the one I use in controlinspector
http://www.codeproject.com/csharp/controlinspector.asp
Control-inspector hooks on to all Windows Forms events for a specific
project so you can see when events are firing. It has a base class
which does the work, which has a method (this is from memory, so the
method names will probably be different in the code):
void ReceiveEvent(object sender, object eventArgs);
I then use Reflection.Emit to make a derived class with the specific
delegate on it (ie:
void ReceiveEventSpecialised(object sender, EventArgs e);
Or
void ReceiveEventSpecialised(object sender, YourCustomEventArgs
e);
This method, of course, just calls the standard method in the base
class. This restricts the amount of IL that needs to be written out
using Reflection.Emit.
I have to say, I remain indebted to Ian Griffiths for his help in coming
up with this on one of the developmentor courses, but it's quite an
interesting technique so I thought it was worth mentioning.
Best wishes
James
> -----Original Message-----
> From: Moderated discussion of advanced .NET topics.
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Eric Gunnerson
> Sent: 03 March 2004 01:22
> To: [EMAIL PROTECTED]
> Subject: Re: [ADVANCED-DOTNET] Creating a delegate from
> reflection information
>
> Weird. I have a column that covers that the just went live yesterday.
>
> The problem you have is that when creating a delegate, you
> need to have a type that matches it, but in the general case,
> you don't.
>
> I got around it by using reflection.emit to create the
> appropriate type on the fly. This is an okay method if you're
> going to call it a bunch, but if you only want to call it
> once, InvokeMember() is a lot easier.
>
> http://msdn.microsoft.com/library/default.asp?url=/library/en-
> us/dncscol
> /html/csharp02172004.asp
>
> Hope that helps
>
> Eric
> -----Original Message-----
> From: Moderated discussion of advanced .NET topics.
> [mailto:[EMAIL PROTECTED] On Behalf Of Ryan Parlee
> Sent: Monday, March 01, 2004 10:39 PM
> To: [EMAIL PROTECTED]
> Subject: [ADVANCED-DOTNET] Creating a delegate from
> reflection information
>
> I am wanting to create a delegate at runtime using reflection
> but am unable to get this working. Specifically, I would
> like to something like this:
>
>
> foreach (MethodInfo mi in
> this.GetType().GetMethods(BindingFlags.Instance))
> {
> myDelegate = new MyDelegate(mi.MethodHandle)
> myArray.Add(myDelegate);
> }
>
>
> The compiler complains that new MyDelegate() expects a
> method. Is there a way to do what I want to do?
>
> Thanks,
> Ryan
>
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