GridView“GridView1”激發(fā)了未處理的事件“PageIndexChanging”。
說明: 執(zhí)行當前 Web 請求期間，出現未處理的異常。請檢查堆棧跟蹤信息，以了解有關該錯誤以及代碼中導致錯誤的出處的詳細信息。
異常詳細信息: System.Web.HttpException: GridView“GridView1”激發(fā)了未處理的事件“PageIndexChanging”。
源錯誤:
執(zhí)行當前 Web 請求期間生成了未處理的異常。可以使用下面的異常堆棧跟蹤信息確定有關異常原因和發(fā)生位置的信息。
堆棧跟蹤:
[HttpException (0x80004005): GridView“GridView1”激發(fā)了未處理的事件“PageIndexChanging”。]
System.Web.UI.WebControls.GridView.OnPageIndexChanging(GridViewPageEventArgs e) +324
System.Web.UI.WebControls.GridView.HandlePage(Int32 newPage) +110
System.Web.UI.WebControls.GridView.HandleEvent(EventArgs e, Boolean causesValidation, String validationGroup) +516
System.Web.UI.WebControls.GridView.RaisePostBackEvent(String eventArgument) +213
System.Web.UI.WebControls.GridView.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +31
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +32
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +244
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3837
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版本信息: Microsoft .NET Framework 版本:2.0.50727.42; ASP.NET 版本:2.0.50727.42
ASP.NET的CS代碼:
using System;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
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.Collections;
public partial class _Default : System.Web.UI.Page
{
string zhumin = ConfigurationSettings.AppSettings["ConnectionString"].ToString();
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
BindDataGrid();
IsFirstLastPage();
}
}
private void BindDataGrid()
{
SqlConnection MyConnection = new SqlConnection(zhumin);
String cmdText = "SELECT * FROM Orders";
SqlDataAdapter da = new SqlDataAdapter(cmdText,MyConnection);
MyConnection.Open();
DataSet ds = new DataSet();
da.Fill(ds);
GridView1.DataSource = ds;
GridView1.DataBind();
MyConnection.Close();
}
protected void GridView1_PageIndexChanged(object source,System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
BindDataGrid();
}
protected void PageCut_Click(object sender, EventArgs e)
{
String commangArg = ((LinkButton)sender).CommandArgument;
switch (commangArg)
{
case "First":
{
GridView1.PageIndex = 0;
break;
}
case "Prev":
{
GridView1.PageIndex = (int)Math.Max(0,GridView1.PageIndex - 1);
break;
}
case "Next":
{
GridView1.PageIndex = (int)Math.Min(GridView1.PageCount - 1, GridView1.PageIndex + 1);
break;
}
case "Last":
{
GridView1.PageIndex = GridView1.PageCount - 1;
break;
}
default:
{
break;
}
}
BindDataGrid();
IsFirstLastPage();
}
private void IsFirstLastPage()
{
if (GridView1.PageCount > 0)
{
if (GridView1.PageCount != 1)
{
if (GridView1.PageIndex == 0)
{
LinkButton2.Enabled = false;
}
else
{
LinkButton2.Enabled = true;
}
if (GridView1.PageIndex == GridView1.PageCount - 1)
{
LinkButton3.Enabled = false;
}
else
{
LinkButton3.Enabled = true;
}
}
else
{
LinkButton2.Enabled = false;
LinkButton3.Enabled = false;
}
}
else
{
LinkButton1.Enabled = false;
LinkButton2.Enabled = false;
LinkButton3.Enabled = false;
LinkButton4.Enabled = false;
}
}
}
最后是我的ASPX代碼:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!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>無標題頁</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<center>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" BackColor="Yellow"
ForeColor="Black" Width="372px" AllowPaging="True">
<Columns>
<asp:BoundField DataField="OrderID" HeaderText="員工ＩＤ" />
<asp:BoundField DataField="EmployeeID" HeaderText="顧客ＩＤ" />
<asp:BoundField DataField="ShipVia" HeaderText="ＳhipＩＤ" />
</Columns>
</asp:GridView>
</center>
<br />
<br />
<center style="text-align: left">
<asp:LinkButton ID="LinkButton1" runat="server" CommandArgument="First">首頁</asp:LinkButton>
<asp:LinkButton ID="LinkButton2" runat="server" CommandArgument="Prev">上一頁</asp:LinkButton>
<asp:LinkButton ID="LinkButton3" runat="server" CommandArgument="Next">下一頁</asp:LinkButton>
<asp:LinkButton ID="LinkButton4" runat="server" CommandArgument="Last">尾頁</asp:LinkButton></center>
</div>
</form>
</body>
</html>