Activator.CreateInstanceFrom问题 [英] Activator.CreateInstanceFrom problem

问题描述

我有两个dll，我有相同的MyClass类定义。说A.dll和

B.dll


这些类有一个功能（但功能不同）

void f（） ;


我使用.net后期绑定使用Activator.CreateInstanceFrom方法来

动态调用dll中的方法f（）。


但是我看到，一旦我成功调用了任何一个dll的f（）方法，

我就无法调用其他dll中的f（）方法，即使

我将其他dll的名称作为参数传递给CreateInstanceFrom方法。

始终f（）来自首先执行的dll总是得到

执行...


我错过了什么吗？


Raj

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

推荐答案

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

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

我有2个dll，我有相同的类MyClass定义。说A.dll和
B.dll

这些类有一个功能（但功能不同）
void f（）;

我用。使用Activator.CreateInstanceFrom方法进行网后期绑定，以动态调用dll中的方法f（）。

但是我看到，一旦我成功调用了任何一个dll的f（）方法，
我无法在其他dll中调用f（）方法，即使我将其他dll的名称作为参数传递给CreateInstanceFrom方法。
总是f（）从首先执行的dll总是被执行......

我错过了什么？

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?

而不是传递另一个DLL的名称，尝试在

上使用Assembly.GetType适当加载的程序集，然后使用

Activator.CreateInstance传递实际类型来创建实例。


-

Jon Skeet - < sk *** @ pobox.com>
http://www.pobox.com/~skeet

如果回复小组，请不要给我发邮件

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

是的，这就是我之前做过的......相同的结果！


请注意，两个程序集上都存在具有完全相同名称的类型。但是我想知道为什么会产生一个问题....


-Raj


-

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" Jon Skeet [C＃MVP]" < SK *** @ pobox.com>在消息中写道

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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:
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"Jon Skeet [C# MVP]" <sk***@pobox.com> wrote in message
news:MP************************@msnews.microsoft.c om...

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

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

我有2个dll，我有相同的类MyClass定义。说A.dll
和B.dll

这些类有一个功能（但功能不同）
void f（）;

我用。使用Activator.CreateInstanceFrom方法进行网后期绑定，以动态调用任一dll中的方法f（）。

但是我看到，一旦我成功调用了任何一个$的f（）方法b $ b dll，我无法在其他dll中调用f（）方法，即使我将其他dll的名称作为参数传递给CreateInstanceFrom
方法。总是f（）来自首先执行的dll总是被执行......

我错过了什么吗？

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?

而不是传递另一个DLL的名称，尝试在
适当加载的程序集上使用Assembly.GetType，然后使用
Activator.CreateInstance传递实际类型来创建实例。

- Jon Skeet - < sk *** @ pobox.com>
http://www.pobox.com/~skeet
如果回复小组，请不要给我发邮件

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

这是代码条

汇编m_oAssembly = Assembly.LoadFrom（assemblySource）;

键入m_oTypeClass = m_oAssembly.GetType（classname，false）;


MethodInfo m_oMethodInfoRequestInitialize =

m_oTypeClass.GetMethod（" Initialize"，System.Reflect ion.BindingFlags.Public

| System.Reflection。 BindingFlags.Instance）;


对象m_oClassInstance = Activator.CreateInstance（m_oTypeClass）;

m_oMethodInfoRequestInitialize.Invoke（m_oClassInst ance，m_oRequestArguments）;


提前致谢


Raj

-

免费试用：
http://www.sharpVoice.com

" Jon Skeet [C＃MVP] " < SK *** @ pobox.com>在消息中写道

新闻：MP ************************ @ msnews.microsoft.c om ...

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>写道：

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

我有2个dll，我有相同的类MyClass定义。说A.dll
和B.dll

这些类有一个功能（但功能不同）
void f（）;

我用。使用Activator.CreateInstanceFrom方法进行网后期绑定，以动态调用任一dll中的方法f（）。

但是我看到，一旦我成功调用了任何一个$的f（）方法b $ b dll，我无法在其他dll中调用f（）方法，即使我将其他dll的名称作为参数传递给CreateInstanceFrom
方法。总是f（）来自首先执行的dll总是被执行......

我错过了什么吗？

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?

而不是传递另一个DLL的名称，尝试在
适当加载的程序集上使用Assembly.GetType，然后使用
Activator.CreateInstance传递实际类型来创建实例。

- Jon Skeet - < sk *** @ pobox.com>
http://www.pobox.com/~skeet
如果回复小组，请不要给我发邮件

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

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