LINQ: adding where clause only when a value is not null

Question

I know a typical way is like this:

IQueryable query = from staff in dataContext.Staffs;
if(name1 != null)
{
     query = from staff in query where (staff.nam         


        

Answer 1

I like the idea with Extension

public static IQueryable WhereIf(this IQueryable query, bool condition, Expression> whereClause)
        => condition ? query.Where(whereClause) : query;