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MethodBase.GetParameters Method

When overridden in a derived class, gets the parameters of the specified method or constructor.

Namespace: System.Reflection
Assembly: mscorlib (in mscorlib.dll)

public abstract ParameterInfo[] GetParameters ()
public abstract ParameterInfo[] GetParameters ()
public abstract function GetParameters () : ParameterInfo[]
Not applicable.

Return Value

An array of type ParameterInfo containing information that matches the signature of the method (or constructor) reflected by this MethodBase instance.

The following example uses the GetParameters method to retrieve the parameters of the Invoke method of a delegate.

The example defines a delegate named MyDelegate and an event named ev of type MyDelegate. The code in the Main method discovers the event signature by getting the delegate type of the event, getting the Invoke method of the delegate type, and then retrieving and displaying the parameters.

// The following example uses instances of classes in 
// the System.Reflection namespace to discover an event argument type.
using System;
using System.Reflection;

public delegate void MyDelegate(int i);
public class MainClass 
{
    public event MyDelegate ev;
    public void Fire(int i) 
    {
        ev += new MyDelegate(this.Fire);
    }

    public static void Main() 
    {
        Type deleg = typeof(MainClass).GetEvent("ev").EventHandlerType;
        MethodInfo invoke = deleg.GetMethod("Invoke");
        ParameterInfo[] pars = invoke.GetParameters();
        foreach (ParameterInfo p in pars) 
        {
            Console.WriteLine(p.ParameterType);
        }
    }
}

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0
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