数据表在生产服务器上传后未绑定，但在本地运行良好

Question

数据表在生产服务器上传后未绑定，但在本地和实时服务器中运行良好 is:IIS 7.0

下面是 C# 代码。

protected void FillGrid(string Paravalue)
{
    try
    {
        bo.Para1 =Request.QueryString["ApplicationStatus"].ToString();pplicationStatus
        bo.Para2 = Session["Userid"].ToString();// SubmittedBy
        bo.Para3 = Paravalue;//Paravalue
        DataTable dt = bl.Get_Applications(bo);
        GridView1.DataSource = dt;
        GridView1.DataBind();

        if (dt.Rows.Count > 0)
        {

            lbl_texxt.Text = dt.Rows[0]["PositionTitle"].ToString();
        }
        else
        {

            lbl_texxt.Text = "No Data";
        }
        if (GridView1.Rows.Count > 0)
        {
            btnExport.Visible = true;
        }
        else
        {
            btnExport.Visible = false;
        }
    }
    catch (Exception ex)
    {
    Console.WriteLine("er" + ex);
    }
}

下面是 Gridview 代码。

     <asp:GridView ID="GridView1" runat="server" DataKeyNames="PositionId"
              AllowSorting="True" AlternatingRowStyle-CssClass="alt"
              AutoGenerateColumns="False" CssClass="mGrid"
              GridLines="None" HeaderStyle-CssClass="header"
              HeaderStyle-Height="25px" PagerStyle-CssClass="pgr"
              Width="900px" PageSize="50">
  <Columns>
    <asp:TemplateField HeaderText="#">
      <ItemTemplate>
        <%# Container.DataItemIndex + 1 %>
      </ItemTemplate>
      <HeaderStyle HorizontalAlign="Center" Width="30px" />
      <ItemStyle CssClass="th" HorizontalAlign="Center" Width="30px" />
    </asp:TemplateField>
    <asp:BoundField DataField="PositionTitle" HeaderText="Position Title">
      <ItemStyle CssClass="th" HorizontalAlign="Left" Width="250px" />
      <HeaderStyle HorizontalAlign="Left" Width="250px" Height="25px" />
    </asp:BoundField>
    <asp:BoundField DataField="Openfor" HeaderText="Open for">
      <ItemStyle HorizontalAlign="Left" Width="140px" />
      <HeaderStyle HorizontalAlign="Left" Width="140px" Height="25px" />
    </asp:BoundField>
    <asp:BoundField DataField="Positions" HeaderText="Total Position(s)">
      <ItemStyle HorizontalAlign="Center" Width="140px" />
      <HeaderStyle HorizontalAlign="Left" Width="140px" Height="25px" />
    </asp:BoundField>
    <asp:TemplateField HeaderText="Location">
      <ItemTemplate>
        <asp:Label ID="lbl_state" runat="server" Text='<%# Eval("State") %>'></asp:Label>
        -
        <asp:Label ID="lbl_City" runat="server" Text='<%# Eval("City") %>'></asp:Label>
      </ItemTemplate>
      <HeaderStyle Width="200px" HorizontalAlign="Left" VerticalAlign="Middle" />
      <ItemStyle Width="200px" HorizontalAlign="Left" VerticalAlign="Middle" />
    </asp:TemplateField>
    <asp:TemplateField HeaderText="Count">
      <ItemTemplate>
        <asp:LinkButton ID="LinkButton1" CssClass="pr_list_count2_action" runat="server" Text='<%# Eval("Count") %>' onClick="ViewApplications">0</asp:LinkButton>
      </ItemTemplate>
      <HeaderStyle Width="140px" HorizontalAlign="Center" VerticalAlign="Middle" />
      <ItemStyle Width="140px" HorizontalAlign="Center" VerticalAlign="Middle" Font-Bold="true" Font-Underline="true" CssClass="grid_row1_action" />
    </asp:TemplateField>
    <asp:TemplateField HeaderText="PositionId" Visible="false">
      <ItemTemplate>
        <asp:Label ID="lbl_ProjectID" runat="server" Text='<%# Eval("PositionId") %>'></asp:Label>
      </ItemTemplate>
    </asp:TemplateField>
  </Columns>
  <PagerStyle CssClass="pgr" />
  <AlternatingRowStyle CssClass="alt" />
  <EmptyDataTemplate>
    <center>
      <asp:LinkButton ID="lnkbtn_nodata" runat="server" Text="No applications pending for review." OnClick="lnkbtn_nodata_Click"></asp:LinkButton>
    </center>
  </EmptyDataTemplate>
</asp:GridView>

我将实时数据库恢复到本地并检查工作正常，将 3200 万数据显示到本地主机的 gridview 中。还有一件事它在显示 No Data 后需要时间加载实时服务器。由于还保留了 try catch 块并获取 'No Data' 和 ApplicationStatus 查询字符串值更改，因此数据显示低于 1000 万条记录。

Answer 1

我看到你的问题了，你的编码没有错误。但是您用于填充数据表的 class 中的连接字符串可能有错误的定义。所以请将所有内容都写在同一页上，不要在某些时候使用 class 来查找错误。您可以使用以下代码。它可能会帮助您找到错误。

protected void FillGrid(string Paravalue)
{
    try
    {
        bo.Para1 = Request.QueryString["ApplicationStatus"].ToString();//ApplicationStatus
        bo.Para2 = Session["Userid"].ToString();// SubmittedBy
        bo.Para3 = Paravalue;//Paravalue
        //DataTable dt = bl.Get_Applications(bo);
        SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["your connection name"].ConnectionString);
        DataTable dt = new DataTable();
        SqlCommand cmd = new SqlCommand("your query or procedure name", con);
        cmd.Parameters.AddWithValue("Para1", bo.Para1);
        cmd.Parameters.AddWithValue("Para1", bo.Para1);
        cmd.Parameters.AddWithValue("Para1", bo.Para1);
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        da.Fill(dt);
        GridView1.DataSource = dt;
        GridView1.DataBind();

        if (dt.Rows.Count > 0)
        {

            lbl_texxt.Text = dt.Rows[0]["PositionTitle"].ToString();
        }
        else
        {

            lbl_texxt.Text = "No Data";
        }
        if (GridView1.Rows.Count > 0)
        {
            btnExport.Visible = true;
        }
        else
        {
            btnExport.Visible = false;
        }
    }
    catch (Exception ex)
    {
        Console.WriteLine("er" + ex);
    }
}

Answer 2

当前的 GridView-Paging 将通过对象数据源进行调整，并根据 Pageindex（按需）加载记录并从 Gridview 中删除分页。

数据表在生产服务器上传后未绑定，但在本地运行良好

Datatable is not binding after uploading in production server but working perfectly in local

c#

asp.net

iis-7

gridview

webforms