Adding a function into another DLL

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In an interview i had a question how do u add a function into another dll or another 3rd party dll.

What I have tried:

is it possible to achieve by using extension method. if so how???
please give me some examples too...

Posted 27-Mar-16 21:20pm

rahulshek

Updated 27-Mar-16 22:44pm

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Sascha Lefèvre · Answer 1 · 2016-03-27T21:34:00

Solution 1

It's certainly possible with some weird hacks but since this is a programmer's forum and not a hacker's forum, the general answer is: No, it's not possible unless you have the full source of the DLL and can recompile it. And extension methods don't add methods into a DLL.

Posted 27-Mar-16 21:34pm

Sascha Lefèvre

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rahulshek 28-Mar-16 5:21am

if extension methods don't add methods into a DLL atleast is it possible to create a function and access it by using the class name???

Sascha Lefèvre 28-Mar-16 5:54am

Sort of - extension methods are called on class instances (variables):
https://msdn.microsoft.com/en-us/library/bb383977.aspx

Member 11884108 · Answer 2 · 2016-03-27T22:44:00

Solution 2

Yes you can add method to dll by using extensioon method by the following way:-
public class Demo
{
public static void MyExtension(this DllClass obj)
{
//Add your code.
}
}
for More details about Extension method visit:-
Extension Methods (C# Programming Guide)[^]

Posted 27-Mar-16 22:44pm

Member 11884108

Comments

rahulshek 28-Mar-16 5:22am

hi i tried myself this for eg. in log4net i tried it but nothing seems to work

Member 11884108 28-Mar-16 9:21am

can you send me your code, so that i can check.