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483231
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2009-01-27T12:31:54.690
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<ul> <li>Use <a href="http://msdn.microsoft.com/en-us/library/system.type.gettype.aspx" rel="noreferrer"><code>Type.GetType(string)</code></a> to get the type object.</li> <li>Use <a href="http://msdn.microsoft.com/en-us/library/system.activator.createinstance.aspx" rel="noreferrer"><code>Activator.CreateInstance(Type)</code></a> to create an instance.</li> <li>Use <a href="http://msdn.microsoft.com/en-us/library/system.type.getmethod.aspx" rel="noreferrer"><code>Type.GetMethod(string)</code></a> to retrieve a method.</li> <li>Use <a href="http://msdn.microsoft.com/en-us/library/system.reflection.methodbase.invoke.aspx" rel="noreferrer"><code>MethodBase.Invoke(object, object[])</code></a> to invoke the method on the object</li> </ul> Example, but with no error checking: <pre><code>using System; using System.Reflection; namespace Foo { class Test { static void Main() { Type type = Type.GetType("Foo.MyClass"); object instance = Activator.CreateInstance(type); MethodInfo method = type.GetMethod("MyMethod"); method.Invoke(instance, null); } } class MyClass { public void MyMethod() { Console.WriteLine("In MyClass.MyMethod"); } } } </code></pre> Each step needs careful checking - you may not find the type, it may not have a parameterless constructor, you may not find the method, you may invoke it with the wrong argument types. One thing to note: Type.GetType(string) needs the assembly-qualified name of the type unless it's in the currently executing assembly or mscorlib.
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1. POHow to do dynamic object creation and method invocation in .NET 3.5
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1. USJon Skeet
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1. POHow to do dynamic object creation and method invocation in .NET 3.5
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