asp.net-4.0 - 什么时候不应该在 Webforms 中设置 @OutputCache 共享属性？

Question

阅读@OutputCache documentation in MSDN我注意到 Shared 属性

文档说:

Shared

A Boolean value that determines whether user control output can be

shared with multiple pages. The default is false. For more information, see the Remarks section.

备注说:

If you set the Shared attribute to true, cached user control output can be accessed by multiple Web Forms pages. If you do not set it to true, the default behavior is to cache one version of user control output for each page that contains that user control. You can potentially save a significant amount of memory by enabling the Shared attribute. For more information, see Caching Portions of an ASP.NET Page.

所以我开始相信通常情况下，对于将在不同页面中准确呈现的控件，应将其设置为 true 以节省缓存内存。

问题是……什么时候我应该不将Shared设置为true？

Answer 1

当不同页面的控件输出不同时，您不应该使用它。

假设您有一个控件，其输出根据用户浏览站点的方式而变化(面包屑控件)- 您不希望跨页面共享它。