无效的 CurrentPageIndex 值。它必须大于等于 0 且小于 PageCount。

Question

我的页面有一个DATAGRID做的分页浏览.但老是出现无效的 CurrentPageIndex 值。它必须大于等于 0 且小于 PageCount这个错误。    protected void Page_Load(object sender, EventArgs e)
    {
        if (!this.IsPostBack)
        {
            this.binddate();
        }
    }    protected void binddate()
    {
        SqlConnection con = DB.createCon();
        con.Open();
        SqlCommand cmd = new SqlCommand("select top 500 * from pubs order by NowDate desc", con);
        SqlDataAdapter sda = new SqlDataAdapter();
        sda.SelectCommand = cmd;
        DataSet ds = new DataSet();
        sda.Fill(ds);
        this.GD.DataSource = ds.Tables[0];
        this.GD.DataBind();
        con.Close();
    }    protected void GD_PageIndexChanged(object source, DataGridPageChangedEventArgs e)
    {
        //新开分页
        this.GD.CurrentPageIndex = e.NewPageIndex;
        //调用方法
        this.binddate();
    }

Answer 1

在网上查资料后加了一个事件,但还是出同样的错误.事件代码:
    protected void GD_DeleteCommand(object source, DataGridCommandEventArgs e)
    {
        if ((GD.CurrentPageIndex == GD.PageCount - 1) && GD.Items.Count == 1)
        {
            //如果当前页-1>1表示当前页为多页的最后一页
            if (GD.CurrentPageIndex - 1 > 1)
            {
                //由于是多页中的最后一页，且是最后一条记录，会产生异常，此时将当前页手动减1，避免异常
                GD.CurrentPageIndex = GD.CurrentPageIndex - 1;
            }
            else
            {
                GD.CurrentPageIndex = 0;
            }
        }
    }

Answer 2

GridView1_PageIndexChanging翻页时在这个事件中试试看

Answer 3

  PageIndexChanging 
 protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {        GridView1.PageIndex = e.NewPageIndex;
        binddate()
    }

Answer 4

    Private Sub Grid_EditCommand( _
      ByVal source As System.Object, _
      ByVal e As System.Web.UI.WebControls.DataGridCommandEventArgs _
      ) Handles Grid.EditCommand      Dim ID As Long = Grid.DataKeys(e.Item.ItemIndex)
      Dim nextUrl As String = "Edit.aspx?ID=" & ID.ToString()
      Response.Redirect(nextUrl)    End Sub
我VB>NEt中代码如上，得有Handles Grid.EditCommand和对象关联才行的。

Answer 5

没有动EnableViewState,是默认的true.
前台代码:
                                <asp:DataGrid ID="GD" runat="server" Width="100%" BackColor="White" BorderColor="#999999" BorderStyle="Solid" BorderWidth="1px" CellPadding="3" ForeColor="Black" GridLines="Vertical" ShowHeader="False" AutoGenerateColumns="False" PageSize="1" AllowPaging="True" OnPageIndexChanged="ProjectCompletedGD_PageIndexChanged">
                                    <FooterStyle BackColor="#CCCCCC" />
                                    <SelectedItemStyle BackColor="#000099" Font-Bold="True" ForeColor="White" />
                                    <PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" NextPageText="下一页" PrevPageText="上一页" />
                                    <AlternatingItemStyle BackColor="#CCCCCC" />
                                    <HeaderStyle BackColor="Black" Font-Bold="True" ForeColor="White" />
                                    <Columns>
                                        <asp:TemplateColumn HeaderText="ID">
                                            <ItemTemplate>
                                                <%# DataBinder.Eval(Container.DataItem,"ID")%>
                                            </ItemTemplate>
                                            <ItemStyle Width="5%" />
                                        </asp:TemplateColumn>
                                        <asp:TemplateColumn HeaderText="项目名称">
                                            <ItemTemplate>
                                                <%# DataBinder.Eval(Container.DataItem,"Name")%>
                                            </ItemTemplate>
                                            <ItemStyle Width="30%" />
                                        </asp:TemplateColumn>
                                        <asp:TemplateColumn HeaderText="建设地点">
                                            <ItemTemplate>
                                                <%# DataBinder.Eval(Container.DataItem,"Location")%>
                                            </ItemTemplate>
                                            <ItemStyle Width="25%" />
                                        </asp:TemplateColumn>
                                        <asp:TemplateColumn HeaderText="建设单位">
                                            <ItemTemplate>
                                                <%# DataBinder.Eval(Container.DataItem,"Owner")%>
                                            </ItemTemplate>
                                            <ItemStyle Width="15%" />
                                        </asp:TemplateColumn>
                                        <asp:TemplateColumn HeaderText="项目状态">
                                            <ItemTemplate>
                                                <%# DataBinder.Eval(Container.DataItem, "Status")%>
                                            </ItemTemplate>
                                            <ItemStyle Width="15%" />
                                        </asp:TemplateColumn>
                                        <asp:TemplateColumn HeaderText="管理操作">
                                            <ItemTemplate>
                                                <a href="add.aspx?ID=<%# DataBinder.Eval(Container.DataItem,"ID")%>">处理</a>
                                            </ItemTemplate>
                                            <ItemStyle Width="10%" />
                                        </asp:TemplateColumn>
                                    </Columns>
                                </asp:DataGrid>

Answer 6

用数字来显示分页吧，用上下页那种  datagrid 好像是有这个BUG，要手动处理一下，网上应该有很多解决方案

Answer 7

你把页面事件分析下...是你自己犯了一个错误.
每次在引发翻页事件之后,页面将回发到服务端,这个时候你的datagird没有再次绑定,哪有数据呢?
前面某位兄台已经告诉你答案了...