How to write dynamic where clause for join range varible

Question

I‘ve been working on a query using LINQ but I’ve run into a snag with a dynamic where clause. I want to check for a condition and if true then add that where to my query.

Answer 1

Use IQueryable here is more info why link

IQueryable<{CreateNewSelectObjects}> query = ... ;
if (sProjType != null)
{
    query = query.Where(x => x.TypeDesc==sProjType);
}