linq Archives - Page 5 of 11

How to get values from IGrouping

I have a question about IGrouping and the Select() method. Let’s say I’ve got an IEnumerable<IGrouping<int, smth>> in this way: var groups = ...

May 20, 2022
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Searching if value exists in a list of objects using Linq

Say I have a class Customer which has a property FirstName. Then I have a List<Customer>. Can LINQ be used to find if ...

May 20, 2022
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How to merge a list of lists with same type of items to a single list of items?

The question is confusing, but it is much more clear as described in the following codes: List<List<T>> listOfList; // add three lists of ...

May 20, 2022
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Using IQueryable with Linq

What is the use of IQueryable in the context of LINQ? Is it used for developing extension methods or any other purpose? 4 ...

May 19, 2022
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Async await in linq select

I need to modify an existing program and it contains following code: var inputs = events.Select(async ev => await ProcessEventAsync(ev)) .Select(t => t.Result) ...

May 18, 2022
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What’s the hardest or most misunderstood aspect of LINQ? [closed]

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, ...

May 18, 2022
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How to do joins in LINQ on multiple fields in single join

I need to do a LINQ2DataSet query that does a join on more than one field (as var result = from x in ...

May 18, 2022
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