C#, Dynamic Functions, Threads

[=?Utf-8?B?QWhtYWQ=?=]

Hi,

Is it possible to do something like the the following:

IBaseClass objClass = new LoadClassFromDL L( "Module.DLL ");
ThreadStart objThreadStart= new
(objClass.GetFu nctionFromName( "GetString" ))

Thread objThread = new Thread (objThreadStart )
objThread.Start ();

bearing in mind the function 'GetFunctionFro mName' doesn't actually exist,
and I don't know how to implement it (I've sorted out the 'LoadClassFromD LL'
function).

Thanks in Advance.

Regards,

Ahmad

[Jon Skeet [C# MVP]]

Re: C#, Dynamic Functions, Threads

On Jul 10, 2:28 pm, Ahmad <Ah...@discussi ons.microsoft.c omwrote:

Is it possible to do something like the the following:
>
    IBaseClass objClass = new LoadClassFromDL L( "Module.DLL ");
    ThreadStart objThreadStart= new
(objClass.GetFu nctionFromName( "GetString" ))
>
    Thread objThread = new Thread (objThreadStart )
    objThread.Start ();
>
bearing in mind the function 'GetFunctionFro mName' doesn't actually exist,
and I don't know how to implement it (I've sorted out the 'LoadClassFromD LL'
function).

Yes, that's basically possible. Look at Type.GetMethod and
MethodInfo.Invo ke. If you're still stuck after a bit of looking, let
me know and I'll write up a short example program. (I'd do it now, but
I really ought to get on with some work...)

Jon

[=?Utf-8?B?QWhtYWQ=?=]

Re: C#, Dynamic Functions, Threads

Hi,

Originally I had:

IModule objModule =
ModuleManager.G etInstance(@"C: \projects\bin\l ibrary\Module.d ll");
Type objType = objModule.GetTy pe();
MethodInfo objMethodInfo = objType.GetMeth od("GetString") ;
Thread objThread = new Thread(objMetho dInfo);

but that doesn't work because the Thread Constructor is expecting a method
rather than an object (in this case MethodInfo). Even using:

IModule objModule =
ModuleManager.G etInstance(@"C: \projects\bin\l ibrary\Module.d ll");

Type objType = objModule.GetTy pe();


MethodInfo objMethodInfo = objType.GetMeth od("GetString") ;
ThreadStart objThreadStart= new (objMethodInfo)
Thread objThread = new Thread(objThrea dStart);

won't work because [yet again] ThreadStart Constructur expecting a method
rather than an object.

Thanks in Advance.

Regards,

Ahmad

"Jon Skeet [C# MVP]" wrote:

On Jul 10, 2:28 pm, Ahmad <Ah...@discussi ons.microsoft.c omwrote:

Is it possible to do something like the the following:

IBaseClass objClass = new LoadClassFromDL L( "Module.DLL ");
ThreadStart objThreadStart= new
(objClass.GetFu nctionFromName( "GetString" ))

Thread objThread = new Thread (objThreadStart )
objThread.Start ();

bearing in mind the function 'GetFunctionFro mName' doesn't actually exist,
and I don't know how to implement it (I've sorted out the 'LoadClassFromD LL'
function).

>
Yes, that's basically possible. Look at Type.GetMethod and
MethodInfo.Invo ke. If you're still stuck after a bit of looking, let
me know and I'll write up a short example program. (I'd do it now, but
I really ought to get on with some work...)
>
Jon
>

[Jon Skeet [C# MVP]]

Re: C#, Dynamic Functions, Threads

Ahmad <Ahmad@discussi ons.microsoft.c omwrote:

IModule objModule =
ModuleManager.G etInstance(@"C: \projects\bin\l ibrary\Module.d ll");
Type objType = objModule.GetTy pe();
MethodInfo objMethodInfo = objType.GetMeth od("GetString") ;
Thread objThread = new Thread(objMetho dInfo);
>
but that doesn't work because the Thread Constructor is expecting a method
rather than an object (in this case MethodInfo). Even using:
>
IModule objModule =
ModuleManager.G etInstance(@"C: \projects\bin\l ibrary\Module.d ll");
>
Type objType = objModule.GetTy pe();
>
>
MethodInfo objMethodInfo = objType.GetMeth od("GetString") ;
ThreadStart objThreadStart= new (objMethodInfo)
Thread objThread = new Thread(objThrea dStart);
>
won't work because [yet again] ThreadStart Constructur expecting a method
rather than an object.

Well, it's expecting a delegate.

You could change it to:

ThreadStart threadStart = delegate { objMethodInfo.I nvoke(null); }

--
Jon Skeet - <skeet@pobox.co m>
Web site: http://www.pobox.com/~skeet
Blog: http://www.msmvps.com/jon_skeet
C# in Depth: http://csharpindepth.com