How to force ListView to show first page programmatically

asp.net listview pager
doekman picture doekman · May 17, 2010 · Viewed 9k times · Source

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.

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.

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

Answer

Lloyd Void jr. picture Lloyd Void jr. · Jun 4, 2010

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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