Mega Code Archive
Define a delegate with no return value and no parameters
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A delegate is an object that can refer to a method.
The method referenced by delegate can be called through the delegate.
A delegate in C# is similar to a function pointer in C/C++.
The same delegate can call different methods.
A delegate is declared using the keyword delegate.
The general form of a delegate declaration:
delegate ret-type name(parameter-list);
ret-type is return type.
The parameters required by the methods are specified in the parameter-list.
A delegate can call only methods whose return type and parameter list match those specified by the delegate's declaration.
All delegates are classes that are implicitly derived from System.Delegate.
using System;
delegate void FunctionToCall();
class MyClass
{
public void nonStaticMethod()
{
Console.WriteLine("nonStaticMethod");
}
public static void staticMethod()
{
Console.WriteLine("staticMethod");
}
}
class MainClass
{
static void Main()
{
MyClass t = new MyClass();
FunctionToCall functionDelegate;
functionDelegate = t.nonStaticMethod;
functionDelegate += MyClass.staticMethod;
functionDelegate += t.nonStaticMethod;
functionDelegate += MyClass.staticMethod;
functionDelegate();
}
}
nonStaticMethod
staticMethod
nonStaticMethod
staticMethod
]]>