private void dataGridView1_RowHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e)
 {
     try
     {
         DataGridViewRow drow = dataGridView1.SelectedRows[0];
         this.Hide();
         frmConfig       frm = new frmConfig();
         BusinessManager BM  = new BusinessManager();
         frm.Show();
         frm.txtConfigID.Text    = drow.Cells[0].Value.ToString();
         frm.cmbProductName.Text = drow.Cells[1].Value.ToString();
         frm.txtFeatures.Text    = drow.Cells[2].Value.ToString();
         frm.txtPrice.Text       = drow.Cells[3].Value.ToString();
         byte[] data = (byte[])drow.Cells[4].Value;
         frm.pictureBox1.Image = BM.BbyteArrayToImage(data);
         frm.btnDelete.Enabled = true;
         frm.btnUpdate.Enabled = true;
         frm.btnSave.Enabled   = false;
         frm.cmbProductName.Focus();
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
 }
        private void FormConfigData1_FormClosing(object sender, FormClosingEventArgs e)
        {
            this.Hide();
            frmConfig frm = new frmConfig();

            frm.Show();
        }