网格视图的Id显示错误的顺序

我有一个网格视图，它有列（Id、Task、Reward、Time Allated、Uploader）。。我可以成功地将数据插入到网格视图中，直到任务ID为118的第13页，但在那之后，数据开始显示在任务ID为7的第1页。

所以序列就像。。。。5,6,7119120121122,8,9,10。。。。。所以所有的新数据都是在7到8之间插入的。为什么？我该如何更正？

我没有；我不认为这是一个代码错误，但这仍然是我的错误：

    protected void btnPost_Click(object sender, EventArgs e)
{
    string CS = ConfigurationManager.ConnectionStrings["EasyRozMoney_ConnectionString"].ConnectionString;
    using (SqlConnection con = new SqlConnection(CS))
    {
        SqlCommand cmd = new SqlCommand("spTasks", con);
        cmd.CommandType = System.Data.CommandType.StoredProcedure;
        cmd.Parameters.AddWithValue("@Title", txtTitle.Text);
        cmd.Parameters.AddWithValue("@Body", txtBody.Text);
        cmd.Parameters.AddWithValue("@Reward", txtRewards.Text);
        cmd.Parameters.AddWithValue("@TimeAllotted", txtTime.Text);
        cmd.Parameters.AddWithValue("@PosterName", txtPoster.Text);
        con.Open();
        cmd.ExecuteNonQuery();
        lblStatus.Text = "Task Posted Successfully.";
    }

这是网格视图：

       <asp:GridView ID="GridView1" runat="server" Width="936px" AllowPaging="True" AutoGenerateColumns="False" CellPadding="3" DataSourceID="SqlDataSource1" OnRowCommand="GridView1_RowCommand" style="text-align: center" BackColor="#DEBA84" BorderColor="#DEBA84" BorderStyle="None" BorderWidth="1px" CellSpacing="2" OnSelectedIndexChanged="GridView1_SelectedIndexChanged">
                <Columns>
                    <asp:BoundField DataField="TaskId" HeaderText="TaskId" InsertVisible="False" ReadOnly="True" SortExpression="TaskId" />
                    <asp:BoundField DataField="Title" HeaderText="Title" SortExpression="Title" />
                    <asp:BoundField DataField="Body" HeaderText="Body" SortExpression="Body" Visible="false" />
                    <asp:BoundField DataField="Reward" HeaderText="Reward(Rs)" SortExpression="Reward" />
                    <asp:BoundField DataField="TimeAllotted" HeaderText="Time(Min)" SortExpression="TimeAllotted" />
                    <asp:BoundField DataField="PosterName" HeaderText="Uploader" SortExpression="PosterName" />
                    <asp:ButtonField ButtonType="Button" CommandName="Select" Text="Perform Task" ControlStyle-ForeColor="White"  ControlStyle-Font-Bold="true">
               <ControlStyle BackColor="#CC6600" Font-Bold="True" ForeColor="White"></ControlStyle>
                    </asp:ButtonField>
                </Columns>
                <FooterStyle BackColor="#F7DFB5" ForeColor="#8C4510" />
                <HeaderStyle BackColor="#CC6600" Font-Bold="True" ForeColor="White" />
                <PagerStyle ForeColor="#8C4510" HorizontalAlign="Center" />
                <RowStyle BackColor="#FFF7E7" ForeColor="#8C4510" />
                <SelectedRowStyle BackColor="#738A9C" Font-Bold="True" ForeColor="White" />
                <SortedAscendingCellStyle BackColor="#FFF1D4" />
                <SortedAscendingHeaderStyle BackColor="#B95C30" />
                <SortedDescendingCellStyle BackColor="#F1E5CE" />
                <SortedDescendingHeaderStyle BackColor="#93451F" />
            </asp:GridView>
            <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:EasyRozMoney_ConnectionString %>" SelectCommand="SELECT * FROM [Task]"></asp:SqlDataSource>

我在sql中的表如下：

       Create table Task
       (
       TaskId int Identity(1,1),
       Title varchar(100),
       Body varchar(500),
       Reward decimal(4,2),
       TimeAllotted int,
       PosterName varchar(100)
       )

我的存储过程：

      Create proc spTasks
      @Title varchar(100),
      @Body varchar(500),
      @Reward decimal(4,2),
     @TimeAllotted int,
      @PosterName varchar(100)
      as
       begin
       Insert into Task values(@Title,@Body,@Reward,@TimeAllotted,@PosterName)
       end

<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:EasyRozMoney_ConnectionString %>" 
 SelectCommand="SELECT * FROM [Task] ORDER BY TASKID"></asp:SqlDataSource>