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c#sqlentity-frameworklinq
AllmanTool
AllmanTool

Reputation: 1514

LINQ Let operator with lambda syntax

I know that there is let operator in linq query syntax. It is useful to store the result of a sub-expression in order to use it in subsequent clauses.

But I prefer work with linq lambda syntax. When I work with a lot of joins i get chain of objects (which represent each level of joins ie: `

s.secondJoin.firstJoin.dd.DataType`

I would like to set some sub result in variable and use it for more convinient work in the following ie:

let joinResult = s.secondJoin.firstJoin and after
joinResult.dd.DataType

Q: Is it possible in linq lambda syntax?

Upvotes: 0

Views: 2227

Answers (1)

V.Leon
V.Leon

Reputation: 586

Equivalent to let in lambda syntax is Select to create an anonymous type, for example:

items.Select(s => new
{
    s = s,
    joinResult = s.secondJoin.firstJoin
})

After this you can use both s and joinResult as you could with let in query syntax.

Upvotes: 2

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