It says Must declare the scalar variable "@username". error on:
Line 30: SqlCommand passComm = new SqlCommand(checkPasswordQuery, conn); Line 31: com.Parameters.AddWithValue("@username", TextBoxLoginUN.Text); Line 32: string password = passComm.ExecuteScalar().ToString().Replace(" ", ""); Line 33: if (password == TextBoxLoginPass.Text) Line 34: { but i have inserted it in 31. It does exist why it says i didint put it there? the project is saved before debug and i am using visual studio 2010 pro.

Here is my HOLE coding:
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Data.SqlClient; using System.Configuration; public partial ...

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