当分拣ASP.net的GridView数据源的空 [英] ASP.net gridview datasource null when sorting

问题描述

在这里，我们再次在排序的下一个问题。

Here we are again with the next problem in sorting.

这是一个后续问题这个问题

我现在已经做了一个类型包含我需要的数据。 然而，当我尝试获取数据返回null GridView控件，这意味着我无法排序任何不存在摆在首位...

I have now made a type to contain the data I need. however, when I try to fetch the data FROM the gridview it returns null, which means I can't sort anything that is not there in the first place...

任何想法，为什么返回null ...

any ideas why this returns null ...

IEnumerable<JointServerData> data = gvServers.DataSource;
var sorted = data;
switch (p)
   {
       case "domain":
            sorted = data.OrderBy(o => o.DomainName);
            break;
       default:
            break;
    }
gvServers.DataSource = sorted;
gvServers.DataBind();

以上就是我试图做...

above is what I'm trying to do ...

推荐答案

在没有看到所有的code我不得不认为这是一个回发的问题。网站的本质上是无状态的，你需要通过任一页面的缓存请求之间的信息或每次检索数据。

Without seeing all your code I'd have to assume that this is a PostBack issue. Website's are intrinsically stateless and you need to resolve this by either caching information between page requests or retrieving the data each time.

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