Activator.CreateInstanceFrom problem

[CKR Rajesh]

Hi,

I have 2 dlls on which i have the same class MyClass defined. Say A.dll and
B.dll

The classes have a function (but different functionality)
void f();

I use .Net late binding using Activator.CreateInstanceFrom method to
dynamically call the method f() in either dll.

But I see that once i successfully call the f() method of either of the dll,
I am not able to call the f() method in the other dll even if
I pass the other dll's name as the parameter to CreateInstanceFrom method.
Always f() from the dll which got executed first is always getting
executed...

Am i missing something?

Raj

[Jon Skeet [C# MVP]]

CKR Rajesh <_r************@usa.net> wrote:

I have 2 dlls on which i have the same class MyClass defined. Say A.dll and
B.dll

The classes have a function (but different functionality)
void f();

I use .Net late binding using Activator.CreateInstanceFrom method to
dynamically call the method f() in either dll.

But I see that once i successfully call the f() method of either of the dll,
I am not able to call the f() method in the other dll even if
I pass the other dll's name as the parameter to CreateInstanceFrom method.
Always f() from the dll which got executed first is always getting
executed...

Am i missing something?

Rather than passing the other DLL's name, try using Assembly.GetType on
the appropriate loaded assembly, and then creating an instance using
Activator.CreateInstance passing in the actual type.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[CKR Rajesh]

Yes, that was what i did earlier... same results!

Note that types with exact same name exist on both the assemblies. But I
wonder why that creates a prob....

-Raj

--
Try it for free:
http://www.sharpVoice.com
"Jon Skeet [C# MVP]" <sk***@pobox.com> wrote in message
news:MP************************@msnews.microsoft.c om...

CKR Rajesh <_r************@usa.net> wrote:

I have 2 dlls on which i have the same class MyClass defined. Say A.dll and B.dll

The classes have a function (but different functionality)
void f();

I use .Net late binding using Activator.CreateInstanceFrom method to
dynamically call the method f() in either dll.

But I see that once i successfully call the f() method of either of the dll, I am not able to call the f() method in the other dll even if
I pass the other dll's name as the parameter to CreateInstanceFrom method. Always f() from the dll which got executed first is always getting
executed...

Am i missing something?

Rather than passing the other DLL's name, try using Assembly.GetType on
the appropriate loaded assembly, and then creating an instance using
Activator.CreateInstance passing in the actual type.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[CKR Rajesh]

this is the code strip
Assembly m_oAssembly = Assembly.LoadFrom(assemblySource);
Type m_oTypeClass = m_oAssembly.GetType(classname,false);

MethodInfo m_oMethodInfoRequestInitialize =
m_oTypeClass.GetMethod("Initialize",System.Reflect ion.BindingFlags.Public
|System.Reflection.BindingFlags.Instance);

object m_oClassInstance = Activator.CreateInstance(m_oTypeClass);
m_oMethodInfoRequestInitialize.Invoke(m_oClassInst ance,m_oRequestArguments);

Thanks in advance

Raj
--
Try it for free:
http://www.sharpVoice.com
"Jon Skeet [C# MVP]" <sk***@pobox.com> wrote in message
news:MP************************@msnews.microsoft.c om...

CKR Rajesh <_r************@usa.net> wrote:

I have 2 dlls on which i have the same class MyClass defined. Say A.dll and B.dll

The classes have a function (but different functionality)
void f();

I use .Net late binding using Activator.CreateInstanceFrom method to
dynamically call the method f() in either dll.

But I see that once i successfully call the f() method of either of the dll, I am not able to call the f() method in the other dll even if
I pass the other dll's name as the parameter to CreateInstanceFrom method. Always f() from the dll which got executed first is always getting
executed...

Am i missing something?

Rather than passing the other DLL's name, try using Assembly.GetType on
the appropriate loaded assembly, and then creating an instance using
Activator.CreateInstance passing in the actual type.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Jon Skeet [C# MVP]]

CKR Rajesh <_r************@usa.net> wrote:

Yes, that was what i did earlier... same results!

Note that types with exact same name exist on both the assemblies. But I
wonder why that creates a prob....

Could you post a short but complete example which we can use to
reproduce the problem?

See http://www.pobox.com/~skeet/csharp/complete.html for details of
what I mean.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too