private void tìmKiếmTheoVùngPhânBốToolStripMenuItem_Click(object sender, EventArgs e) { foreach (Form form in Application.OpenForms) { if (form.GetType() == typeof(frmTKTV)) { form.Close(); break; } } if ((Application.OpenForms["frmTKTV"] as frmTKTV) == null) { frmTKTV frmTKSVHmn = new frmTKTV(); frmTKSVHmn.Show(); } }
private void pictureBox3_Click(object sender, EventArgs e) { foreach (Form form in Application.OpenForms) { if (form.GetType() == typeof(frmTKTV)) { form.Close(); break; } } if ((Application.OpenForms["frmTKTV"] as frmTKTV) == null) { frmTKTV frmTKTVmn = new frmTKTV(); frmTKTVmn.FormClosed += FrmTKSVHmn_FormClosed; frmTKTVmn.Show(); } }