ASP的一个鲜为人知和很少使用的特性。网络:

标签的映射

它很少被使用，因为只有在特定的情况下你才会需要它，但当你需要它的时候，它是如此方便。

一些关于这个小功能的文章:

ASP中的标签映射。网 在ASP中使用标签映射。NET 2.0

从上一篇文章来看:

Tag mapping allows you to swap compatible controls at compile time on every page in your web application. A useful example is if you have a stock ASP.NET control, such as a DropDownList, and you want to replace it with a customized control that is derived from DropDownList. This could be a control that has been customized to provide more optimized caching of lookup data. Instead of editing every web form and replacing the built in DropDownLists with your custom version, you can have ASP.NET in effect do it for you by modifying web.config:

<pages>
 <tagMapping>
   <clear />
   <add tagType="System.Web.UI.WebControls.DropDownList"
        mappedTagType="SmartDropDown"/>
  </tagMapping>
</pages>

你可以使用UniqueID属性找到任何控件:

Label label = (Label)Page.FindControl("UserControl1$Label1");

ASP的一个鲜为人知和很少使用的特性。网络:

标签的映射

它很少被使用，因为只有在特定的情况下你才会需要它，但当你需要它的时候，它是如此方便。

一些关于这个小功能的文章:

ASP中的标签映射。网 在ASP中使用标签映射。NET 2.0

从上一篇文章来看:

Tag mapping allows you to swap compatible controls at compile time on every page in your web application. A useful example is if you have a stock ASP.NET control, such as a DropDownList, and you want to replace it with a customized control that is derived from DropDownList. This could be a control that has been customized to provide more optimized caching of lookup data. Instead of editing every web form and replacing the built in DropDownLists with your custom version, you can have ASP.NET in effect do it for you by modifying web.config:

<pages>
 <tagMapping>
   <clear />
   <add tagType="System.Web.UI.WebControls.DropDownList"
        mappedTagType="SmartDropDown"/>
  </tagMapping>
</pages>

HttpContext.Current.IsDebuggingEnabled

这对于决定要输出哪些脚本(最小或完整版本)或其他您在开发中可能想要但不是实时的脚本非常有用。

在测试时，您可以将电子邮件发送到计算机上的文件夹，而不是SMTP服务器。把这个放到你的web.config中:

<system.net>
    <mailSettings>
        <smtp deliveryMethod="SpecifiedPickupDirectory">
            <specifiedPickupDirectory pickupDirectoryLocation="c:\Temp\" />
        </smtp>
    </mailSettings>
</system.net>

零售模式在机器。配置水平:

<configuration>
  <system.web>
    <deployment retail="true"/>
  </system.web>
</configuration>

覆盖网络。配置设置以强制调试为false，打开自定义错误并禁用跟踪。不再忘记在发布之前更改属性—只需将它们全部配置为开发或测试环境，并更新生产零售设置。