How to create lambda chain in extensions

Question

How to create Lambda extensions chains like this in C#?

someVar.GetOwnProperites().With.DefaultValues.From(datasource);

I saw this syntax in DI like Automapper I think. But I'm not sure how to do it..

Couldn't you just look at their source code? – GraemeMiller Mar 01 '18 at 07:36 — GraemeMiller, Mar 01 '18 at 07:36

score 0 · Accepted Answer · edited Mar 01 '18 at 07:29

0

Write an extension method which returns the same object

e.g

public static class Extensions{
   public static WhateverYouWantToOperateOn With(this WhateverYouWantToOperateOn source){
   //your logic 
   return source;      
}
}

For things like With and DefaultValues, there would be a property in the class which returns the instance of the same class.

edited Mar 01 '18 at 07:29

Mittal Patel

2,732
14
23

answered Mar 01 '18 at 07:23

Pratap Bhaskar

408
3
11

`With` is property in initial code, not a method. – tchelidze Mar 01 '18 at 07:27
Second part mentions the same, it would be something like this public MyClass With {return {//do some logic; return this;} – Pratap Bhaskar Mar 01 '18 at 07:29

How to create lambda chain in extensions

1 Answers1