名称';GridView1';在当前上下文Glossary.aspx中不存在
本文关键字:Glossary aspx 不存在 上下文 GridView1 名称 | 更新日期: 2023-09-27 18:22:02
Glossary.aspx
这是该网站的html代码。我计划添加一个登录名,这样人们就可以根据活动目录编辑表。
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title spellcheck="true">Lexis Nexis Glossary</title>
</head>
<body>
<form id="form1" runat="server">
<div style="margin-left: 720px">
</div>
<asp:SqlDataSource ID="TedGlossary" runat="server" ConnectionString="<%$ ConnectionStrings:Glsry_Taylor %>" SelectCommand="SELECT [TermText], [DefNbr], [DefVerNbr], [DefText], [AmplifyingExplanationText], [SeeAlsoText], [AuthoritativeSrcText], [ScopeName], [DomnName], [GovernanceStateName], [LastUpdtTimestamp] FROM [Glossary] ORDER BY [TermText]"></asp:SqlDataSource>
<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True" AutoGenerateColumns="False"
" DataKeyNames="TermText,DefNbr,DefVerNbr" DataSourceID="TedGlossary" EnableSortingAndPagingCallbacks="True">
<Columns>
<asp:BoundField DataField="TermText" HeaderText="Term" ReadOnly="True" SortExpression="TermText" />
<asp:BoundField DataField="DefNbr" HeaderText="Definition #" ReadOnly="True" SortExpression="DefNbr" />
<asp:BoundField DataField="DefVerNbr" HeaderText="Definition Vers #" ReadOnly="True" SortExpression="DefVerNbr" />
<asp:BoundField DataField="DefText" HeaderText="Definition" SortExpression="DefText" />
<asp:BoundField DataField="AmplifyingExplanationText" HeaderText="Amplifying Explanation" SortExpression="AmplifyingExplanationText" />
<asp:BoundField DataField="SeeAlsoText" HeaderText="See Also" SortExpression="SeeAlsoText" />
<asp:BoundField DataField="AuthoritativeSrcText" HeaderText="Authoritative Source" SortExpression="AuthoritativeSrcText" />
<asp:BoundField DataField="ScopeName" HeaderText="Scope Name" SortExpression="ScopeName" />
<asp:BoundField DataField="DomnName" HeaderText="Domn Name" SortExpression="DomnName" />
<asp:BoundField DataField="GovernanceStateName" HeaderText="Governance State" SortExpression="GovernanceStateName" />
<asp:BoundField DataField="LastUpdtTimestamp" HeaderText="Last Update" SortExpression="LastUpdtTimestamp" />
</Columns>
</asp:GridView>
</form>
<script>
$(function () {
$('#<%=GridView1.ClientID%>').dataTable();
});
</script>
</body>
</html>
Glossary.aspx。cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace Home
{
public partial class Glossary : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
GridView1.PreRender += new EventHandler(GridView1_PreRender);
}
protected void GridView1_PreRender(object sender, EventArgs e)
{
if (GridView1.Rows.Count > 0)
{
//forces grid to render thead/th elements
GridView1.UseAccessibleHeader = true;
GridView1.HeaderRow.TableSection = TableRowSection.TableHeader;
}
}
}
}
我收到一个错误,GridView 1在其当前上下文中不存在。我不知道为什么会这样。如有任何见解,我们将不胜感激。
您的web表单顶部似乎缺少页面声明。
你应该有这样的东西,把前端和后端连接起来。这基本上告诉了支持类文件所在的设计视图
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Glossary.aspx.cs" Inherits="Glossary" %>
如果"may"需要改为这个-正如我所看到的,在后面的代码中有一个名称空间
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Glossary.aspx.cs" Inherits="Home.Glossary" %>
这将解释您看到的错误,因为如果没有该页面指令,.aspx.cs文件对设计视图一无所知。
对于初学者,请删除GridView
的DataKeyNames
属性之前的额外双引号(")。
这可能是由于GridView1未在Glossary.aspx designer.cs文件中声明所致。可能需要首先创建文件和/或手动添加对GridView1的引用。
示例Glossary.aspx designer.cs:
public partial class Glossary {
protected global::Global.System.Web.UI.WebControls.GridView GridView1;
}