void* alternative in C#

I am making a class that calls a callback function and I want it to pass some data in some cases but that data may vary. In C++ I would use void* but in C# it's unsafe and it means it might get GCed. Is there any way of passing unknown type of data开发者_开发问答 in C#?

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You've got two options:

Generics (which allow you to specify the type when you call the method... and the object will be properly typed within the method.)

// Definition:
public void MyMethod<T>(T myParameter)
{
    /* My Code */
}

// Call:
MyMethod<int>(999);

// Call:
MyMethod<bool>(false);

Or System.Object (which means you'll have to ascertain the object's actual type inside your method and cast appropriately)

// Definition:
public void MyMethod(Object myParameter)
{
    /* My Code */
}

// Call:
MyMethod(999);

// Call:
MyMethod(false);

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You should use Generics for this.

http://msdn.microsoft.com/en-us/library/twcad0zb.aspx

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The simplest solution would be to use the object type because all other objects inherit from this object. Doing so you allow yourself to pass in any object type.

http://msdn.microsoft.com/en-us/library/system.object.aspx

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You'd pass it around at an object. Unlike C++ you'll be able to do a type safe cast in C#, whereas you can't in C++.

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I think you should use Object.

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If you're working in .net 4 you can also use the dynamic type.