How to put dynamic column name in linq or where clause

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I need a lemda expression with dynamic column like below example

C#

var item=listItem.Where(DynamicColumn.Contains(textValue));

or

C#

var item=listItem.Where(a=>a.DynamicColumn.Contains(textValue));

What I have tried:

I have tried to do it by the same way i have discussed in the question description but it's not working.

Posted 18-Mar-16 3:51am

Updated 18-Mar-16 4:01am

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1 solution

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Sascha Lefèvre · Accepted Answer · 2016-03-18T04:01:00

The solution is to dynamically build the required expression tree which normally gets done for you "under the hood" by using those LINQ methods.

That's a moderately advanced topic but you don't have to do it yourself: There already are several solutions for this which you could use:

Build Lambda Expressions Dynamically[^]
Dynamic Expresso[^]
LINQ and Dynamic Predicate Construction at Runtime[^]
Build Where Clause Dynamically in Linq[^]
GitHub - kahanu/System.Linq.Dynamic: This is the Microsoft assembly for the .Net 4.0 Dynamic language functionality.[^]