private void btn_clientcode_Click(object sender, EventArgs e)
{
Frm_Client a = new Frm_Client();
a.clientCode = tb_customerid.Text;
a.ShowDialog();
}
private void clientToolStripMenuItem1_Click(object sender, EventArgs e)
{
Frm_Client frm = new Frm_Client();
frm.clientCode = this.tb_clientcode.Text;
frm.ShowDialog();
}