void DisplayStaff()
{
ClsStaffCollection members = new ClsStaffCollection();
LbStaffList.DataSource = members.StaffList;
LbStaffList.DataValueField = "StaffID";
LbStaffList.DataTextField = "ContactNumber";
LbStaffList.DataBind();
}
protected void BtnApply_Click(object sender, EventArgs e)
{
ClsStaffCollection members = new ClsStaffCollection();
members.ReportByContactNumber(TbContactNumberFilter.Text);
LbStaffList.DataSource = members.StaffList;
LbStaffList.DataValueField = "StaffID";
LbStaffList.DataTextField = "ContactNumber";
LbStaffList.DataBind();
}