private void button1_Click(object sender, EventArgs e)
{
Admin_Menu open = new Admin_Menu();
open.Show();
this.Hide();
}
private void btnlogin_Click(object sender, EventArgs e)
{
errorProvider1.Clear();
if (txtusername.Text.Length <= 0)
{
errorProvider1.SetError(txtusername, "This field cannot be empty");
}
else if (txtusername.Text.Length <= 0)
{
errorProvider1.SetError(txtusername, "This field cannot be empty");
}
else if (txtpassword.Text.Length <= 0)
{
errorProvider1.SetError(txtpassword, "This field cannot be empty");
}
else
{
try
{
SqlCommand selectCommand = new SqlCommand(" Select * from Main_Login where User_Name=@UserId and Password=@PASS", conn);
selectCommand.Parameters.Add(new SqlParameter("UserId", txtusername.Text.ToString()));
String password = "";
using (SHA1 sha1 = SHA1.Create())
{
//sha1.Initialize();
byte[] data = sha1.ComputeHash(Encoding.UTF8.GetBytes(txtpassword.Text));
StringBuilder sb = new StringBuilder();
for (int i = 0; i < data.Length; ++i)
{
sb.Append(data[i].ToString("x2"));
}
password = sb.ToString();
}
selectCommand.Parameters.Add(new SqlParameter("PASS", password));
string UserType = null;
SqlDataReader reader = selectCommand.ExecuteReader();
bool rowfound = reader.HasRows;
if (rowfound)
{
while (reader.Read())
{
UserType = reader[2].ToString().Trim();
if (UserType == "Administrator")
{
GlobalVariablesClass.VariableOne = txtusername.Text;
MessageBox.Show("Welcome ", "Admin Login", MessageBoxButtons.OK, MessageBoxIcon.Information);
Admin_Menu frm = new Admin_Menu();
frm.Show();
this.Hide();
}
else if (UserType == "Stock Controller")
{
GlobalVariablesClass.VariableOne = txtusername.Text;
MessageBox.Show("Welcome ", "User Login", MessageBoxButtons.OK, MessageBoxIcon.Information);
StockController_Menu frm = new StockController_Menu();
frm.Show();
this.Hide();
}
else if (UserType == "Cashier")
{
GlobalVariablesClass.VariableOne = txtusername.Text;
MessageBox.Show("Welcome ", "Cashier Login", MessageBoxButtons.OK, MessageBoxIcon.Information);
Cashier_Menu frm = new Cashier_Menu();
frm.Show();
this.Hide();
}
}
}
else
{
MessageBox.Show(" Invalid User Or Password ", "Login ", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
reader.Close();
}
catch (Exception ex)
{
MessageBox.Show("error login " + ex);
}
}
}
