我想到了一个特性，有时候你需要隐藏页面的某些部分。你可以用javascript或者下面这段简单的代码:

if (Request.Browser.Crawler){
        HideArticleComments();

有两件事在我脑海中浮现:

1)你可以在代码中打开和关闭Trace:

#ifdef DEBUG 
   if (Context.Request.QueryString["DoTrace"] == "true")
                {
                    Trace.IsEnabled = true;
                    Trace.Write("Application:TraceStarted");
                }
#endif

2)您可以使用一个共享的“代码隐藏”文件构建多个.aspx页面。

构建一个类.cs文件:

public class Class1:System.Web.UI.Page
    {
        public TextBox tbLogin;

        protected void Page_Load(object sender, EventArgs e)
        {

          if (tbLogin!=null)
            tbLogin.Text = "Hello World";
        }
    }

然后你可以有任意数量的。aspx页面(在你删除VS生成的。designer.cs和。cs代码之后):

  <%@ Page Language="C#"  AutoEventWireup="true"  Inherits="Namespace.Class1" %>
     <form id="form1" runat="server">
     <div>
     <asp:TextBox  ID="tbLogin" runat="server"></asp: TextBox  >
     </div>
     </form>

你可以在ASPX中拥有没有在Class1中出现的控件，反之亦然，但是你需要记住检查你的控件是否为空。

默认情况下，自定义控件的标记之间的任何内容都被添加为子控件。这可以在AddParsedSubObject()覆盖中截获，用于过滤或额外的解析(例如，LiteralControls中的文本内容):

    protected override void AddParsedSubObject(object obj)
     { var literal = obj as LiteralControl;
       if (literal != null) Controls.Add(parseControl(literal.Text));
       else base.AddParsedSubObject(obj);
     }

...

   <uc:MyControl runat='server'>
     ...this text is parsed as a LiteralControl...
  </uc:MyControl>

将位于App_Code文件夹中的类附加到全局应用程序类文件。

ASP。NET 2.0 -全球。asax -代码背后文件。

它也可以在Visual Studio 2008中工作。

If you use web services instead WCF services, you can still use standard .Net membership to enforce authentication and login session behaviour on a set web services similarly to a how you would secure web site with membership forms authentication & without the need for a special session and/or soap headers implementations by simply calling System.Web.Security.FormsAuthentication.SetAuthCookie(userName, false) [after calling Membership.ValidateUser(userName, password) of course] to create cookie in the response as if the user has logged in via a web form. Then you can retrieve this authentication cookie with Response.Cookies[].Value and return it as a string to the user which can be used to authenticate the user in subsequent calls by re-creating the cookie in the Application_BeginRequest by extracting the cookie method call param from the Request.InputStream and re-creating the auth cookie before the membership authenticates the request this way the membership provider gets tricked and will know the request is authenticated and enforce all its rules.

将此cookie返回给用户的示例web方法签名如下: 字符串登录(用户名、密码)

后续web方法调用示例如下: 字符串DoSomething(字符串authcookie，字符串methodParam1,int methodParam2等，等)，你需要提取authcookie(这是从登录方法获得的值)参数从请求。InputStreamis

这也模拟了一个登录会话并调用FormsAuthentication。签出在web方法，如注销(authcookie)将 使用户需要再次登录。

代码表达式构建器

样本的标记:

Text = '<%$ Code: GetText() %>'
Text = '<%$ Code: MyStaticClass.MyStaticProperty %>'
Text = '<%$ Code: DateTime.Now.ToShortDateString() %>'
MaxLenth = '<%$ Code: 30 + 40 %>'

代码表达式构建器的真正美妙之处在于，您可以像在非数据绑定情况下使用表达式一样使用数据绑定。您还可以创建执行其他功能的其他表达式生成器。

. config:

<system.web>    
    <compilation debug="true">
        <expressionBuilders>
            <add expressionPrefix="Code" type="CodeExpressionBuilder" />

实现这一切的cs类:

[ExpressionPrefix("Code")]
public class CodeExpressionBuilder : ExpressionBuilder
{
    public override CodeExpression GetCodeExpression(
        BoundPropertyEntry entry,
        object parsedData,
        ExpressionBuilderContext context)
    {            
        return new CodeSnippetExpression(entry.Expression);
    }
}