CODEWITHSUNDEEP
c#linqsyntaxlambda
Wil
Wil

Reputation: 10604

Is it possible to put two Lambda expressions inside a single query?

I was wondering if there is an easy way to place two Lambda expressions in a single (Linq/Where) query?

For example, I currently call a method with something like the following:

string testing = "blablabla";
if(testing == "" || testing == null)

I have tried a few combinations such as:

testing.Where(x => x == ("") || x=> x == null);

But the above doesn't work. I know I can set up a method that returns a predicate/bool, but, at the moment, I am interested in Lambdas and was just wondering how to achieve this.

Do I need to chain multiple Where methods, or is there a way to achieve multiple Lambdas?

(p.s. I know about IsNullOrEmpty, this is just the first example I could think of!)

Upvotes: 0

Views: 962

Answers (2)

Rag
Rag

Reputation: 6593

If you're looking for a general way to combine query conditions in arbitrary ways, you can use expression trees:

http://msdn.microsoft.com/en-us/library/bb882637.aspx

Upvotes: 0

Bala R
Bala R

Reputation: 108957

You can always combine them to a single lambda.

testing.Where(x => x == null || x == ("")  );

Upvotes: 7

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