我正在验证默认值。但是，我的网站的Aspx(使用母版页);我无法让它通过验证，因为前面的信息
<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEventWireup="true"
CodeBehind="Default.aspx.cs" Inherits="EMSWebSite._Default" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
<link href="Styles/style.css" rel="stylesheet" type="text/css" />
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
验证输出:3 Errors
Error Line 2, Column 1: character "<%" not allowed in prolog
<%@ Page Title="Home Page" Language="C#" MasterPageFile="~/Site.master" AutoEve…
✉
Error Line 8, Column 80: document type does not allow element "asp:Content" here
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
✉
The element named above was found in a context where it is not allowed. This could mean that you have incorrectly nested elements -- such as a "style" element in the "body" section instead of inside "head" -- or two elements that overlap (which is not allowed).
One common cause for this error is the use of XHTML syntax in HTML documents. Due to HTML's rules of implicitly closed elements, this error can create cascading effects. For instance, using XHTML's "self-closing" tags for "meta" and "link" in the "head" section of a HTML document may cause the parser to infer the end of the "head" section and the beginning of the "body" section (where "link" and "meta" are not allowed; hence the reported error).
Error Line 10, Column 3: "DOCTYPE" declaration not allowed in instance
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.o…
您应该验证生成的HTML，而不是ASPX代码。
如果您想要一个快速和简单的解决方案，使用浏览器来显示代码并验证它