using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
// <summmary>
// What has been added for Login Page
// for this application to function
// </summary>
using System.Web.Security;
using System.Data.SqlClient;
using System.Configuration;
namespace NorthCSharp
{
/// <summary>
/// Summary description for WebForm1.
/// </summary>
public class WebForm1 : System.Web.UI.Page
{
protected System.Web.UI.WebControls.TextBox txtUserName;
protected System.Web.UI.WebControls.RequiredFieldValidator rvUserValidator;
protected System.Web.UI.WebControls.TextBox txtPassword;
protected System.Web.UI.WebControls.RequiredFieldValidator rvPasswordValidator;
protected System.Web.UI.WebControls.Button cmdSubmit;
protected System.Web.UI.WebControls.ValidationSummary Validationsummary1;
protected System.Web.UI.WebControls.Label lblMessage;
protected System.Web.UI.WebControls.Label lblMessage2;
private void Page_Load(object sender, System.EventArgs e)
{
// Put user code to initialize the page here
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.cmdSubmit.Click += new System.EventHandler(this.cmdSubmit_Click);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void cmdSubmit_Click(object sender, System.EventArgs e)
{
if (Page.IsValid)
{
if (DBConnection(txtUserName.Text.Trim(), txtPassword.Text.Trim()))
{
FormsAuthentication.RedirectFromLoginPage (txtUserName.Text, false);
}
else
{
lblMessage.Text = "Invalid Login, please try again!";
}
}
}
private bool DBConnection(string txtUser, string txtPass)
{
SqlConnection myConn = new SqlConnection(ConfigurationSettings.AppSettings["strConn"]);
SqlCommand myCmd = new SqlCommand("sp_ValidateUser", myConn);
myCmd.CommandType = CommandType.StoredProcedure;
SqlParameter objParam1;
SqlParameter objParam2;
SqlParameter returnParam;
objParam1 = myCmd.Parameters.Add ("@UserName", SqlDbType.VarChar);
objParam2 = myCmd.Parameters.Add ("@Password", SqlDbType.VarChar);
returnParam = myCmd.Parameters.Add ("@Num_of_User", SqlDbType.Int);
objParam1.Direction = ParameterDirection.Input;
objParam2.Direction = ParameterDirection.Input;
returnParam.Direction = ParameterDirection.ReturnValue;
objParam1.Value = txtUser;
objParam2.Value = txtPass;
try
{
if (myConn.State.Equals(ConnectionState.Closed))
{
myConn.Open();
myCmd.ExecuteNonQuery();
}
if ((int)returnParam.Value < 1)
{
lblMessage.Text = "Invalid Login!";
return false;
}
else
{
myConn.Close();
return true;
}
}
catch (Exception ex)
{
lblMessage2.Text = ex + "Error Connecting to the database";
return false;
}
}
}
} | 
