Gridview第二页在ASP.NET中没有绑定

Question

我希望将Gridview1中的DataTable1中的学生注册号绑定到DataTable2中的位置。 但是，Gridview1第一页只绑定，第二页以后没有绑定。我给出了我的.net代码，DB表结构和Gridview1显示。如果有人给我解决方案，我会感激你的。

C＃.Net Code

private void dgvHallSeating()
        {

        DataSet ds = new DataSet();

        DataTable dt;

        DataTable dtSeatPositionsAssign = new DataTable();

        DataColumn col1;
        DataColumn col2;
        DataColumn col3;
        DataColumn col4;
        DataColumn col5;

        dt = new DataTable();
        col1 = new DataColumn("col1", Type.GetType("System.String"));
        col2 = new DataColumn("col2", Type.GetType("System.String"));
        col3 = new DataColumn("col3", Type.GetType("System.String"));
        col4 = new DataColumn("col4", Type.GetType("System.String"));
        col5 = new DataColumn("col5", Type.GetType("System.String"));

        dtSeatPositionsAssign.Columns.Add(col1);
        dtSeatPositionsAssign.Columns.Add(col2);
        dtSeatPositionsAssign.Columns.Add(col3);
        dtSeatPositionsAssign.Columns.Add(col4);
        dtSeatPositionsAssign.Columns.Add(col5);

        Int32 SeatPositionColIndex = 0;
        Int32 SeatPositionRowIndex = 0;

        DataTable DataTable2 = new DataTable();
        DataTable2 = CMSBL.dtecSeatSlot1Positions();

        DataTable DataTable1 = CMSBL.rptecSeatSlot1Reports();

        int RegNoRowIndex = 0;
        int HallSeatPosition = 0;

        for (; RegNoRowIndex < 11; RegNoRowIndex++)
        {
            for (; HallSeatPosition < DataTable2.Rows.Count; )
            {
                SeatPositionColIndex = Convert.ToInt32(DataTable2.Rows[HallSeatPosition]["ecGridColumnIndex"]);
                SeatPositionColIndex = SeatPositionColIndex - 1;

                SeatPositionRowIndex = Convert.ToInt32(DataTable2.Rows[HallSeatPosition]["ecGridRowIndex"]);
                SeatPositionRowIndex = SeatPositionRowIndex - 1;

                dtSeatPositionsAssign.Rows.Add();
                if (SeatPositionRowIndex >= dtSeatPositionsAssign.Rows.Count || GridView1.Rows.Count <= 5)
                {
                    dtSeatPositionsAssign.Rows.Add();
                }
                dtSeatPositionsAssign.Rows[SeatPositionRowIndex][SeatPositionColIndex] = DataTable1.Rows[RegNoRowIndex][3].ToString();

                break;
            }
            HallSeatPosition++;
        }

        GridView1.DataSource = dtSeatPositionsAssign;
        GridView1.DataBind();
    }

**

DataTable1

**

的 Datatable2

**

Gridview1显示