private void simpleButton1_Click(object sender, EventArgs e)
{
gridControl1.DataSource = dt.TheoDoiDenMuon_SELECT();
txtMaHS.DataBindings.Clear();
txtMaHS.DataBindings.Add("Text", gridControl1.DataSource, "StudentID");
txtHoHS.DataBindings.Clear();
txtHoHS.DataBindings.Add("Text", gridControl1.DataSource, "FirstName");
txtTenHS.DataBindings.Clear();
txtTenHS.DataBindings.Add("Text", gridControl1.DataSource, "LastName");
/* dateTimePicker1.DataBindings.Clear();
* dateTimePicker1.DataBindings.Add("Text", gridControl1.DataSource, "DateOfEntry");
*
* dateTimePicker2.DataBindings.Clear();
* dateTimePicker2.DataBindings.Add("Text", gridControl1.DataSource, "StartTime");
*
* dateTimePicker3.DataBindings.Clear();
* dateTimePicker3.DataBindings.Add("Text", gridControl1.DataSource, "EndTime");
*
* dateTimePicker4.DataBindings.Clear();
* dateTimePicker4.DataBindings.Add("Text", gridControl1.DataSource, "DrugTime");
*
* txtNXAnUong.DataBindings.Clear();
* txtNXAnUong.DataBindings.Add("Text", gridControl1.DataSource, "Eating");
*
* txtNXNguNghi.DataBindings.Clear();
* txtNXNguNghi.DataBindings.Add("Text", gridControl1.DataSource, "Sleep");
*
* txtNXHocTap.DataBindings.Clear();
* txtNXHocTap.DataBindings.Add("Text", gridControl1.DataSource, "Health");
*
* txtNXVuiChoi.DataBindings.Clear();
* txtNXVuiChoi.DataBindings.Add("Text", gridControl1.DataSource, "Study");
*
* txtNXChung.DataBindings.Clear();
* txtNXChung.DataBindings.Add("Text", gridControl1.DataSource, "Note");*/
}