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Design Time event generation and method content


Design Time event generation and method content fujiyama NO[at]SPAM gmail.com
4/5/2005 4:02:49 PM
dotnet windows forms designtime:
Hi!
I'm trying to figure out how to create a control which can add or edit
code during drag&drop operation. I know how to handle CreateTransaction
method and add the control but I have no idea how to add event code
content during this operation.
For example, I would like to add the MyButton control which after drop
on Form will add Click event handler (+=new EventHandler to
ComponentDesigner generatated code) and put myButton_Click method with
some code inside.

I don't know if should I play with
System.CodeDom.CodeAttachEventStatement or maybe there is another
method?
I cannot find any example of such a thing. Sorry for my english :)

Mikolaj
Re: Design Time event generation and method content Mujdat Dinc
4/6/2005 4:47:20 PM
Hi..
To bind an event this helps you..
You can do this in your customtoolitem on CreateComponentCore function or
set set on your componet or initilize on your designer...

IEventBindingService eventservice =
(IEventBindingService)this.Component.Site.GetService(typeof(System.ComponentModel.Design.IEventBindingService));
if( eventservice != null )
{
// Attempt to obtain a PropertyDescriptor for a
EventDescriptorCollection edc =
TypeDescriptor.GetEvents(this.Component);
if( edc == null || edc.Count == 0 )
return;

EventDescriptor ed = null;

foreach(EventDescriptor edi in edc)
if(edi.Name == "Click")
{
ed = edi;
break;
}
if( ed == null )
return;

// Use the IEventBindingService to get a
// PropertyDescriptor for the event.
PropertyDescriptor pd = eventservice.GetEventProperty(ed);
if( pd == null )
return;

// Set the value of the event to "testEventHandler".
pd.SetValue(this.Component, "testEventHandler");
}

----- Original Message -----
From: <fujiyama@gmail.com>
Newsgroups: microsoft.public.dotnet.framework.windowsforms.designtime
Sent: Wednesday, April 06, 2005 2:02 AM
Subject: Design Time event generation and method content


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