我在asp.net应用程序中有一个使用表单标记的内容页面.页面上只有一个,所以我很困惑为什么它给我错误:验证(
HTML5):元素’表单’不能嵌套在元素’表单’中
下面是代码:
<%@ Page Language="C#" AutoEventWireup="true" MasterPageFile="~/Site.Master" CodeBehind="Default.aspx.cs" Inherits="WebApplication6._Default" %> <asp:Content ID="Content1" runat="server" ContentPlaceHolderID="MainContent"> <div> <form id="form1"> <asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False" DataKeyNames="Id" DataSourceID="sqlDataSource1" AllowPaging="True" OnSelectedIndexChanged="GridView1_SelectedIndexChanged"> <Columns> <asp:BoundField DataField="Id" HeaderText="Id" InsertVisible="False" ReadOnly="True" SortExpression="Id" /> <asp:BoundField DataField="Title" HeaderText="Title" SortExpression="Title" /> <asp:BoundField DataField="Director" HeaderText="Director" SortExpression="Director" /> <asp:BoundField DataField="DateReleased" HeaderText="DateReleased" SortExpression="DateReleased" /> <asp:TemplateField HeaderText="Selection"> <ItemTemplate> <asp:CheckBox ID="Selections" runat="server" OnCheckedChanged="CheckBox1_CheckedChanged1" /> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView> <asp:sqlDataSource ID="sqlDataSource1" runat="server" ConnectionString="<%$ConnectionStrings:ConnectionString %>" SelectCommand="SELECT * FROM [Movies]"></asp:sqlDataSource> <asp:Button ID="Button1" runat="server" Text="Select Movies" OnClick="Button1_Click" CausesValidation="False" /> <asp:TextBox ID="TextBox1" Text="First Name" runat="server"></asp:TextBox> </form> </div> </asp:Content>
我的主页上有一个表格,但昨天没有给我提问.
有任何想法吗?
@R_301_323@
如果您的< asp:ContentPlaceHolder ID =“MainContent”>控件本身就是一个表单元素,那么你不应该在asp:content控件中放置一个表单,因为你不应该有嵌套表单.
从HTML5工作草案:
4.10.3 The form element
Content model:
Flow content,but with no form element descendants.
UPDATE
见问题A page can have only one server-side Form tag:
Master pages should not contain form tags in general because they are meant to be used only as the base layout of your content page.
尝试使用以下指南重构您的项目:
>仅将表单元素添加到aspx页面>从页面向MasterPage添加主要内容>将需要嵌套在表单中的任何内容添加到放置在页面中的UserControl.