//Bind dropdown leave type
private void BindLeaveType()
{
ddlLeaveType.Items.Clear();
DataTable dt = leave.FetchLeaveTypes();
ddlLeaveType.DataSource = dt;
ddlLeaveType.DataTextField = "LeaveType";
ddlLeaveType.DataValueField = "LeaveTypeId";
ddlLeaveType.DataBind();
ddlLeaveType.Items.Insert(0, new ListItem("Select Leave Type", "0"));
}