Calling a function from a string in C#


Question

I know in php you are able to make a call like:

$function_name = 'hello';
$function_name();

function hello() { echo 'hello'; }

Is this possible in .Net?

1
136
2/12/2009 4:49:29 AM

Accepted Answer

Yes. You can use reflection. Something like this:

Type thisType = this.GetType();
MethodInfo theMethod = thisType.GetMethod(TheCommandString);
theMethod.Invoke(this, userParameters);
247
2/12/2009 4:59:14 AM

You can invoke methods of a class instance using reflection, doing a dynamic method invocation:

Suppose that you have a method called hello in a the actual instance (this):

string methodName = "hello";

//Get the method information using the method info class
 MethodInfo mi = this.GetType().GetMethod(methodName);

//Invoke the method
// (null- no parameter for the method call
// or you can pass the array of parameters...)
mi.Invoke(this, null);

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