updatepanel+gridview无刷新分页问题

页面一个gridview显示数据,一个dropdownlist显示分类,选择不同的分类时,gridview显示不同的数据.用的是gridview自带的分页,每次选择分类在点分页的页码,显示的数据都是page_load中没有分类的数据,后来从网上查用ajax+updatepanel就可以了,我安装了ajax1.0,新建了ajaxenable网站,配置好了数据源,在页面中加了scriptmanager控件,updatepanel控件.将gridview放入了updatepanel中,可是还不起作用,请高手帮忙呀,急急急!!

解决方案 »

  1.   

    dropdownlist 也要放到 updatepanel中
      

  2.   

    我放进去了也没用呀,这个是代码
    protected void Page_Load(object sender, EventArgs e)
        {
            
                ClassDataSet ds = new ClassDataSet();
                string sql = "select * from view_web_comm_kf_jy_last order by m_id desc";
                ds.DataBind(sql, "oweb", GridView1);
           
        }
        protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            GridView1.PageIndex = e.NewPageIndex;
            GridView1.DataBind();
        }
        protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
        {
            ClassDataSet ds = new ClassDataSet();
            string sql = "select * from view_web_comm_kf_jy_last where jy_lb='" + DropDownList1.SelectedItem.Text.ToString() + "'";
            ds.DataBind(sql, "oweb", GridView1);
        }
        protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)
        {
            ClassDataSet ds = new ClassDataSet();
            string sql = "select * from view_web_comm_kf_jy_last where jy_lb='" + DropDownList2.SelectedItem.Text.ToString() + "'";
            ds.DataBind(sql, "oweb", GridView1);
    }
      

  3.   

    你的代码这样改下就OK啦
    protected void Page_Load(object sender, EventArgs e)
      {
    if(!IsPostBack)
        {
      ClassDataSet ds = new ClassDataSet();
      string sql = "select * from view_web_comm_kf_jy_last order by m_id desc";
      ds.DataBind(sql, "oweb", GridView1);
        }
      }
      

  4.   

    if(!IsPostBack)这个加上后选第二页后数据为空的啊,就是什么也不显示了
      

  5.   

    页面代码<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" >
    <head runat="server">
        <title>无标题页</title>
    </head>
    <body>
        <form id="form1" runat="server">
        <div>
            <asp:ScriptManager ID="ScriptManager1" runat="server">
                <Scripts>
                    <asp:ScriptReference Path="Default2.aspx" />
                </Scripts>
            </asp:ScriptManager>
        
        </div>
            <asp:UpdatePanel ID="UpdatePanel1" runat="server">
                <ContentTemplate>
                    <asp:GridView ID="GridView1" runat="server" AllowPaging="True" OnPageIndexChanging="GridView1_PageIndexChanging">
                    </asp:GridView>
                    &nbsp;&nbsp;
                    <asp:DropDownList ID="DropDownList2" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList2_SelectedIndexChanged">
                        <asp:ListItem>请选择</asp:ListItem>
                        <asp:ListItem>投诉管理</asp:ListItem>
                        <asp:ListItem>业务支撑</asp:ListItem>
                        <asp:ListItem>营业厅服务</asp:ListItem>
                    </asp:DropDownList>
                </ContentTemplate>
                <Triggers>
                    <asp:AsyncPostBackTrigger ControlID="GridView1" EventName="PageIndexChanging" />
                </Triggers>
            </asp:UpdatePanel>
                    <asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
                        <asp:ListItem>请选择</asp:ListItem>
                        <asp:ListItem>业务支撑</asp:ListItem>
                        <asp:ListItem>投诉管理</asp:ListItem>
                        <asp:ListItem>营业厅服务</asp:ListItem>
                    </asp:DropDownList>
        </form>
    </body>
    </html>
    C#代码using System;
    using System.Data;
    using System.Configuration;
    using System.Collections;
    using System.Web;
    using System.Web.Security;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Web.UI.WebControls.WebParts;
    using System.Web.UI.HtmlControls;
    using System.Data.OracleClient;public partial class kf_admin_Default2 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                ClassDataSet ds = new ClassDataSet();
                string sql = "select * from view_web_comm_kf_jy_last order by m_id desc";
                ds.DataBind(sql, "oweb", GridView1);
            }
           
        }
        protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            GridView1.PageIndex = e.NewPageIndex;
            GridView1.DataBind();
        }
        protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
        {
            ClassDataSet ds = new ClassDataSet();
            string sql = "select * from view_web_comm_kf_jy_last where jy_lb='" + DropDownList1.SelectedItem.Text.ToString() + "'";
            ds.DataBind(sql, "oweb", GridView1);
        }
        protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e)
        {
            ClassDataSet ds = new ClassDataSet();
            string sql = "select * from view_web_comm_kf_jy_last where jy_lb='" + DropDownList2.SelectedItem.Text.ToString() + "'";
            ds.DataBind(sql, "oweb", GridView1);
        }
    }
      

  6.   

    <html xmlns="http://www.w3.org/1999/xhtml" >
    <head runat="server">
      <title>无标题页</title>
    </head>
    <body>
      <form id="form1" runat="server">
      <div>
      <asp:ScriptManager ID="ScriptManager1" runat="server">
      <Scripts>
      <asp:ScriptReference Path="Default2.aspx" />
      </Scripts>
      </asp:ScriptManager>
        
      </div>
        <asp:GridView ID="GridView1" runat="server" AllowPaging="True" OnPageIndexChanging="GridView1_PageIndexChanging">
      </asp:GridView>
      &nbsp;&nbsp;
    <asp:UpdatePanel ID="UpdatePanel1" runat="server">
      <ContentTemplate>
      <asp:DropDownList ID="DropDownList2" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList2_SelectedIndexChanged">
      <asp:ListItem>请选择</asp:ListItem>
      <asp:ListItem>投诉管理</asp:ListItem>
      <asp:ListItem>业务支撑</asp:ListItem>
      <asp:ListItem>营业厅服务</asp:ListItem>
      </asp:DropDownList>
      </ContentTemplate>
      <Triggers>
      <asp:AsyncPostBackTrigger ControlID="GridView1" EventName="PageIndexChanging" />
      </Triggers>
      </asp:UpdatePanel>
      <asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
      <asp:ListItem>请选择</asp:ListItem>
      <asp:ListItem>业务支撑</asp:ListItem>
      <asp:ListItem>投诉管理</asp:ListItem>
      <asp:ListItem>营业厅服务</asp:ListItem>
      </asp:DropDownList>
      </form>
    </body>
    </html>
    这样就OK了
      

  7.   

    把<asp:UpdatePanel ID="UpdatePanel1" runat="server">
      <ContentTemplate>
    这个放下面去
      

  8.   


    你GridView 都没放到<asp:UpdatePanel ID="UpdatePanel1" runat="server">
      <ContentTemplate>里面  你怎么实现无刷新？