private void logOutToolStripMenuItem_Click(object sender, EventArgs e)
 {
     if (MessageBox.Show("Are you Sure You Want to Logout?", "Make Sure", MessageBoxButtons.YesNo) == DialogResult.Yes)
     {
         MainMDI mainForm = new MainMDI();
         Form1   Login    = new Form1();
         MainMDI.ActiveForm.Dispose();
         Program.username = "";
         Login.Show();
     }
 }
        private void btnLogin_Click(object sender, EventArgs e)
        {
            if (txtUsername.Text == null || txtPassword.Text == null || cboUserType.SelectedIndex == 0)
            {
                lblMessage.Text = "Please Provide Valid Users Credential";
                CleanLoginForm();
            }


            else
            {
                DataTable dt = bllg.LoginUser(txtUsername.Text, txtPassword.Text, Convert.ToInt32(cboUserType.SelectedValue.ToString()));
                if (dt.Rows.Count > 0)
                {
                    Program.username = txtUsername.Text;
                    Program.userId   = Convert.ToInt32(dt.Rows[0][0].ToString());
                    if (cboUserType.Text == "Admin")
                    {
                        MainMDI mainForm = new MainMDI();

                        mainForm.Show();
                        mainForm.userPanelToolStripMenuItem.Visible = false;

                        this.Hide();
                    }
                    else if (cboUserType.Text == "User")
                    {
                        MainMDI mainForm = new MainMDI();
                        mainForm.Show();
                        mainForm.adminPanelToolStripMenuItem.Visible = false;
                        this.Close();
                    }
                }

                else
                {
                    invalid.Text = "* User Details Dose'nt Matched. Plese Try Again";
                }
            }
        }