如何强制ListView控件以编程方式显示第一页 [英] How to force ListView to show first page programmatically

问题描述

我有一个分页ASP.NET ListView控件。所示过滤的数据，这可以通过一个形式来控制。当过滤器形式的变化，我创建了一个新的查询，并执行的DataBind。

I have a paged ASP.NET ListView. The data shown is filtered, which can be controlled by a form. When the filter form changes, I create a new query, and perform a DataBind.

问题然而，当我去到下一个页面，并设置一个过滤器，ListView控件显示无数据返回。这是不奇怪的，因为应用的筛选后，只有一个数据的页面。

The problem however, when I go to the next page, and set a filter, the ListView shows "No data was returned". That is not weird, because after the filter is applied, there is only one page of data.

所以，我想要做的就是重新寻呼机。那是一个正确的解决问题的方法？而这样做我怎么做呢？

So what I want to do is reset the pager. Is that a correct solution to the problem? And how do I do that?

推荐答案

我在加载处理程序使用这个技巧。它会不会重置寻呼机，如果结果项目数是相同的，但页面索引将仍然有效，所以我可以忍受现在。

I use this hack in my Load handler. It'll not reset the pager if the number of result items is the same, but the page index will still be valid so I can live with that for now.

if (IsPostBack)
{
    DataPager pgr = MyListView.FindControl("MyPager") as DataPager;
    if (pgr != null && MyListView.Items.Count != pgr.TotalRowCount)
    {
        pgr.SetPageProperties(0, pgr.MaximumRows, false);
    }
}

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