private void btn_dktiente_ItemClick(object sender, ItemClickEventArgs e) { frm_DangKyTienTe pg = new frm_DangKyTienTe(); if (ExistForm(pg)) { return; } pg.MdiParent = this; pg.Show(); }
private void btn_dktt_ItemClick(object sender, ItemClickEventArgs e) { frm_DangKyTienTe frm = new frm_DangKyTienTe(); if (ExistForm(frm)) { return; } frm.MdiParent = this; frm.Show(); }
private void barButtonItem20_ItemClick(object sender, ItemClickEventArgs e) { frm_DangKyTienTe pg = new frm_DangKyTienTe(); if (ExistForm(pg)) { return; } pg.MdiParent = this; pg.Show(); frmQL_NguoiDung_NhomNguoiDung frm = new frmQL_NguoiDung_NhomNguoiDung(); frm.MdiParent = this; frm.Show(); StartPosition = FormStartPosition.CenterParent; }