microsoft.public.dotnet.framework.sdk

Manish Godse [MS]

10/8/2002 10:39:00 PM

You should be able to treat out parameters as ref parameters and call
GetMethod. Try something like this:

using System;
using System.Reflection;

public class M{
public void Method(out int x){
x = 200;
Console.WriteLine("Called out Method");
}

public static void Main(){
Type t = typeof(M);
M m = (M)Activator.CreateInstance(t); // Create an
instance of M
Type [] p = new Type[1];
p[0] = Type.GetType("System.Int32&"); // typeof(ref int) out
is really ref with an extra custom attribute
MethodInfo mi = t.GetMethod("Method", p); // Get the method
Object [] ps = new Object[1]; // Create param
array
mi.Invoke(m, ps); // Call the method
Console.WriteLine(ps[0]);
}
}

--
Hope this helps,
Manish Godse
Microsoft
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"Brian Vargas" <noreply@ardvaark.net> wrote in message
news:#kbyjdvbCHA.1688@tkmsftngp09...
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>
> Greetings,
>
> I am attempting to invoke a method via reflection. Normally this isn't
> a problem, but the catch is that one of the parameters of the method I
> am calling is an "out" parameter.
>
> I am pretty sure that I can make all of this work by manually
> enumerating the methods on my object using GetMethods() and then
> searching for a method that matches my expected signature using the
> ParameterInfo objects returned by the GetParameters() method off the
> MethodInfo object.
>
> What I want to know is: Is there a better way? Ideally, I'd like to
> simply call the GetMethod() method off the Type object, but it does not
> seem to support searching by modified parameter. There is one that
> takes an array of ParameterModifier structs, but that structure doesn't
> seem to be documented very well.
>
> Any thoughts?
>
> Brian
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