C# - Web Site - SQL Select Statement

Question

I want to use a select statement to find if there is a record that already exists. I\'ve put the code below but it throws an error at the dReader = comm.ExecuteReader(); and i\'

Answer 1

Change this line:

comm.CommandText = "SELECT * FROM Customers WHERE CustomerID == " + txtID.Text;

To this line:

comm.CommandText = "SELECT * FROM Customers WHERE CustomerID = @id";
comm.Parameters.AddWithValue("id", int.Parse(txtID.Text));

Assuming that your customer id is int on the database.