ASP.NET代码中，C#与后台逻辑有何紧密联系？

2026-04-24 15:592阅读0评论SEO资源

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我有一个简单的页面如下：Default.aspx的%25@+Page+Language%3D%22C%22

我有一个简单的页面如下：

Default.aspx的

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> <html> <body> <form method="POST" action="Default.aspx"> Enter Number: <input type="text" name="cNum" value="7707744436276244" /><br /> <input type="submit" value="Submit" /> </form> </body> </html>

和Default.aspx.cs背后的代码

using System; using System.Collections.Generic; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; public partial class _Default : System.Web.UI.Page { public string ServerSideVariable; protected void Page_Load(object sender, EventArgs e) { string n = String.Format("{0}", Request.Form['cNum']); ERROR Here<--- too many character in character literall.... string pval = "Passed value"; ServerSideVariable = pval; } }

为什么会发生错误？

另外我打算在代码后面实现与DB建立连接并将响应返回给ASP.net,任何人都知道这是怎么做到的？

在C#中,’是为字符文字保留的.
“是为字符串文字保留的.

char char1 = 'Z'; // Character literal string string1 = "ZZZ"; // String literal

C#参考文献：

> Character literals
> String literals
> [] Operator

请尝试以下方法：

using System; using System.Collections.Generic; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; public partial class _Default : System.Web.UI.Page { public string ServerSideVariable; protected void Page_Load(object sender, EventArgs e) { string n = String.Format("{0}", Request.Form["cNum"]); //ERROR Here<--- too many character in character literall.... string pval = "Passed value"; ServerSideVariable = pval; } }

关于第2个问题,请阅读www.oracle.com/technetwork/issue-archive/2011/11-sep/o51odt-453447.html.