call delegate generics

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public delegate void BindGtype<int>(T id);

 var PointGtypeMethod = new BindGtype<int>(BindGasTypes);
 PointGtypeMethod(;   -----------------------------------------------------> how to call here ?

  public void BindGasTypes<int>(T UserID)
    {
        try
        {
            var ds = WeldService.GetUserSelectedGasTypeDetails(UserID);

            gvGas.DataSource = ds;
            gvGas.DataBind();
        }
        catch (Exception ex)
        { }

    }

Posted 26-Jun-13 21:37pm

anbujeremiah

Updated 26-Jun-13 23:19pm

v2

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johannesnestler 27-Jun-13 3:46am

no question, seems to be incomplete

OriginalGriff 27-Jun-13 3:57am

This is not a good question - we cannot work out from that little what you are trying to do.
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johannesnestler · Accepted Answer · 2013-06-26T22:01:00

Solution 1

Hi anbujerimiah,

After reading your - non question ;-) - again. I think I can guess what you want to know.

So your delegate Definition should be generic (it is wrong...)

public delegate void BindGtype<T>(T id);

Let's say you have a generic method matching your delegate type BindGtype

void AMethod<T>(T id) {}

Then you can create a new function pointer to this method like this:

var PointGtypeMethod = new BindGtype<int>(AMethod);

and you can do the same to point to an already "specialized" (non-generic) method

void AnotherMethod(int id) {}
var PointGtypeMethod = new BindGtype<int>(AnotherMethod);

Does this help?

Kind regards

Johannes

Posted 26-Jun-13 22:01pm

johannesnestler

Updated 26-Jun-13 23:53pm

v5

Comments

anbujeremiah 27-Jun-13 5:33am

Thanks Johannes.

i have another doubt, in your last line ... you mentioned

and you can do the same to point to an already "specialized" (non-generic) method

void AnotherMethod(int id) {}

Do you mean AMethod is AnotherMethod or both different methods

Also PointGtypeMethod(function pointer) will it point to AnotherMethod ?

Many Thanks

johannesnestler 27-Jun-13 5:50am

AMethod is a generic method (with an type Argument T) while AnotherMehtod is a "normal" (non-generic) method. So, when you create a function pointer, the pointed method must match the signature of your function pointer type (=delegate). What I wanted to show you is just that a generic delegate does not need to point to generic methods, but if you do so, C# deduces the correct type from the delegates type parameter also for the generic method (you dont't have to write: new BindGtype<int>(AMethod+TYPEPARAMETER)). But in normal use cases you will have a generic delegate (EventHandler<t> is a good example)and a lot of different non-generic methods you can point to (again the different event-handler methods in a typical .NET GUI Project are a good example)

johannesnestler 27-Jun-13 5:54am

(updated solution)