private void btnSave_Click(object sender, EventArgs e)
 {
     if (txtUnit.Text != "")
     {
         con.Open();
         cmd = new SqlCommand("Insert into Unit(QuantityType) values(@b)", con);
         cmd.Parameters.AddWithValue("@b", txtUnit.Text);
         try
         {
             int r = cmd.ExecuteNonQuery();
             MessageBox.Show("Material Unit Added Succesfully", "Unit Added", MessageBoxButtons.OK, MessageBoxIcon.Information);
         }
         catch (Exception exc)
         {
             MessageBox.Show(exc.ToString());
         }
         finally
         {
             txtUnit.Text = "";
             con.Close();
         }
     }
     else
     {
         MessageBox.Show("Fill Required Feilds", "", MessageBoxButtons.OK, MessageBoxIcon.Stop);
     }
     Unit u = new Unit();
     u.Show();
 }
 private void newEntryToolStripMenuItem5_Click(object sender, EventArgs e)
 {
     Unit u = new Unit();
     u.Show();
 }