Asynchronous Methods and Delegates

[theBoringCoder]

Hello All,

I just started learning about Delegates, and was wondering
if someone could point me at some useful, straightforward
examples of how to use delegates to make method calls
asynchronously. I've been told that this is possible, and
works similar to callbacks in C++, but cannot find any
straightforward examples in C#.

Thanks,

theBoringCoder

[Andy Gaskell]

I always liked the bedtime story...

http://www.sellsbrothers.com/writing...=delegates.htm

"theBoringCoder" <tb*****@isd.sbcounty.gov> wrote in message
news:ad****************************@phx.gbl...

Hello All,

I just started learning about Delegates, and was wondering
if someone could point me at some useful, straightforward
examples of how to use delegates to make method calls
asynchronously. I've been told that this is possible, and
works similar to callbacks in C++, but cannot find any
straightforward examples in C#.

Thanks,

theBoringCoder

[Nicholas Paldino [.NET/C# MVP]]

theBoringCoder,

It's actually quite easy. If you create a delegate like this:

public delegate void MyMethodDelegate(int myParam);

Then an instance of a delegate exposes three methods, Invoke,
BeginInvoke, and EndInvoke. What you want to do is create an instance of
the delegate, and then call the BeginInvoke method, like so:

// Create the delegate.
MyMethodDelegate pobjDelegate = new MyMethodDelegate(MyMethod);

// Call asynchronously.
IAsyncResult pobjResult = pobjDelegate.BeginInvoke(1, null, null);

For a more detailed explaination and examples, check out the section of
the .NET framework documentation titled "Asynchronous Delegates", located at
(watch for line wrap):

http://msdn.microsoft.com/library/de...sdelegates.asp

Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"theBoringCoder" <tb*****@isd.sbcounty.gov> wrote in message
news:ad****************************@phx.gbl...

Hello All,

I just started learning about Delegates, and was wondering
if someone could point me at some useful, straightforward
examples of how to use delegates to make method calls
asynchronously. I've been told that this is possible, and
works similar to callbacks in C++, but cannot find any
straightforward examples in C#.

Thanks,

theBoringCoder

[theBoringCoder]

Yeah, that is a funny story.

-----Original Message-----
I always liked the bedtime story...

http://www.sellsbrothers.com/writing/default.aspx? content=delegates.htm
"theBoringCoder" <tb*****@isd.sbcounty.gov> wrote in messagenews:ad****************************@phx.gbl...

Hello All,

I just started learning about Delegates, and was wondering if someone could point me at some useful, straightforward examples of how to use delegates to make method calls
asynchronously. I've been told that this is possible, and works similar to callbacks in C++, but cannot find any
straightforward examples in C#.

Thanks,

theBoringCoder

.

[theBoringCoder]

Thanks. That helps a lot.

-----Original Message-----
theBoringCoder,

It's actually quite easy. If you create a delegate like this:
public delegate void MyMethodDelegate(int myParam);

Then an instance of a delegate exposes three methods, Invoke,BeginInvoke, and EndInvoke. What you want to do is create an instance ofthe delegate, and then call the BeginInvoke method, like so:
// Create the delegate.
MyMethodDelegate pobjDelegate = new MyMethodDelegate (MyMethod);
// Call asynchronously.
IAsyncResult pobjResult = pobjDelegate.BeginInvoke(1, null, null);
For a more detailed explaination and examples, check out the section ofthe .NET framework documentation titled "Asynchronous Delegates", located at(watch for line wrap):

http://msdn.microsoft.com/library/default.asp? url=/library/en-
us/cpguide/html/cpovrasynchronousdelegates.asp
Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"theBoringCoder" <tb*****@isd.sbcounty.gov> wrote in messagenews:ad****************************@phx.gbl...

Hello All,

I just started learning about Delegates, and was wondering if someone could point me at some useful, straightforward examples of how to use delegates to make method calls
asynchronously. I've been told that this is possible, and works similar to callbacks in C++, but cannot find any
straightforward examples in C#.

Thanks,

theBoringCoder

.