private void button2_Click(object sender, EventArgs e) { con.Open(); SqlCommand cmd = new SqlCommand("Select * from adminlogin where username=@username AND password=@password", con); cmd.Parameters.AddWithValue("@username", username.Text); cmd.Parameters.AddWithValue("@password", password.Text); SqlDataAdapter adapt = new SqlDataAdapter(cmd); DataSet ds = new DataSet(); adapt.Fill(ds); con.Close(); int count = ds.Tables[0].Rows.Count; string str; str = "select * from adminlogin"; SqlCommand com = new SqlCommand(str, con); con.Open(); SqlDataReader reader = com.ExecuteReader(); if (string.IsNullOrEmpty(username.Text) && string.IsNullOrEmpty(password.Text)) { labelMessage.ForeColor = Color.Red; labelMessage.Text = "Please fill the required fields!"; username.Focus(); } else if (string.IsNullOrEmpty(username.Text)) { labelMessage.ForeColor = Color.Red; labelMessage.Text = "Please fill the username field!"; username.Focus(); } else if (string.IsNullOrEmpty(password.Text)) { labelMessage.ForeColor = Color.Red; labelMessage.Text = "Please fill the password field!"; password.Focus(); } else if (count == 1) { getTheName(username.Text); MessageBox.Show("Welcome, " + UppercaseFirst(adminusername) + "!"); Hide(); aselco201users fm = new aselco201users(); fm.Show(); } else { labelMessage.ForeColor = Color.Red; labelMessage.Text = "Invalid username or password!"; password.Text = ""; password.Focus(); } con.Close(); }
public static bool CloseCancel() { const string message = "Are you sure that you would like to close?"; const string caption = "Closing ASELCO 201 File System"; var result = MessageBox.Show(message, caption, MessageBoxButtons.YesNo, MessageBoxIcon.Question); if (result == DialogResult.Yes) { LoginForm login = new LoginForm(); aselco201users adminlogin = new aselco201users(); login.Close(); adminlogin.Close(); Environment.Exit(0); return(true); } else { return(false); } }