private void btnNhaCungCap_Click(object sender, EventArgs e) { Form form = searchOpenedForm("NhaCungCapManagerForm"); if (form == null) { form = new NhaCungCapManagerForm(); } form.Show(); form.Activate(); }
private void nhàCungCấpToolStripMenuItem_Click(object sender, EventArgs e) { Form form = searchOpenedForm("NhaCungCapManagerForm"); if (form == null) { form = new NhaCungCapManagerForm(); } form.MdiParent = this; form.Show(); form.Activate(); }