LINQ to Entities does not recognize the method 'System.String get_Item (System.String)',

Question

How can I solve this problem?

Here is my code:

    DateTime dtInicio = new DateTime();
    DateTime dtFim = new DateTime();
    Int32 codStatus = 0;
         


        

Answer 1

In one line...

DO NOT USE STRING CONVERSION FUNCTIONS in Linq(Entity) Query!

Wrong:

user = db.Users.Where(u => u.Name == dt.Rows[i]["Name"].ToString()).FirstOrDefault();

Correct:

string Name = dt.Rows[i]["Name"].ToString();
user = db.Users.Where(u => u.Name == Name).FirstOrDefault();