private void thoToolStripMenuItem_Click(object sender, EventArgs e)
{
frmCustomer cus = new frmCustomer();
cus.MdiParent = this;
cus.FormBorderStyle = FormBorderStyle.None;
content.Controls.Clear();
content.Controls.Add(cus);
cus.Show();
}
private void button1_Click_1(object sender, EventArgs e)
{
frmCustomer cus = new frmCustomer();
cus.MdiParent = this;
cus.FormBorderStyle = FormBorderStyle.None;
content.Controls.Clear();
content.Controls.Add(cus);
cus.Show();
}