private void frmThemLop_Load(object sender, EventArgs e)
{
try
{
dtDanhSachMon = MonBUS.GetTable();
dtgvDSMon.DataSource = dtDanhSachMon;
DataGridViewCheckBoxColumn checkboxColumn = new DataGridViewCheckBoxColumn();
checkboxColumn.Width = 30;
checkboxColumn.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleCenter;
dtgvDSMon.Columns.Insert(0, checkboxColumn);
// add checkbox header
Rectangle rect = dtgvDSMon.GetCellDisplayRectangle(0, -1, true);
// set checkbox header to center of header cell. +1 pixel to position correctly.
rect.X = rect.Location.X + (rect.Width / 4);
CheckBox checkboxHeader = new CheckBox();
checkboxHeader.Name = "checkboxHeader";
checkboxHeader.Size = new Size(18, 18);
checkboxHeader.Location = rect.Location;
checkboxHeader.CheckedChanged += new EventHandler(checkboxHeader_CheckedChanged);
dtgvDSMon.Controls.Add(checkboxHeader);
cmbNamHoc.DataSource = NamHocBUS.GetList();
cmbNamHoc.DisplayMember = "TenNamHoc";
cmbNamHoc.ValueMember = "MaNamHoc";
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void layDanhSachMon()
{
try
{
listMonHoc.DataSource = MonBUS.GetTable(txtThongTinTimKiem.Text);
listMonHoc.DisplayMember = "TenMon";
listMonHoc.ValueMember = "MaMon";
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public void refreshMonData()
{
dtDanhSachMon = MonBUS.GetTable();
dtgvDSMon.DataSource = dtDanhSachMon;
((CheckBox)dtgvDSMon.Controls.Find("checkboxHeader", true)[0]).Checked = false;
}