LINQ and paging with a listview

Question

I have a page with a listview control and a datapager control. The listviews datasource is set programatically using this code:

Dim dal as new dalDataContext
Dim bookmarks = From data In dal.getData(userid)
listview1.DataSource = bookmarks
listview1.DataBind()

When i test this page in a browser it comes up with the error: 'ListView with id 'listview1' must have a data source that either implements ICollection or can perform data source paging if AllowPaging is true.'

How can i implement paging in this scenario?

Thanks

Answer 1

Try

listview1.DataSource = bookmarks.ToArray()

I had the same problem this week.

Answer 2

An answer to the click-twice problem that the OP subsequently encountered - move the Databind to the OnPreRender event handler:

    protected void Page_PreRender(object sender, EventArgs e)
    {
        listview1.DataBind();
    }

Answer 3

or maybe create a page properties changing and bindlistview there.

protected void lv_PagePropertiesChanging(object sender, PagePropertiesChangingEventArgs e)
{
    //set current page startindex, max rows and rebind to false
    DataPager dp = lvNews.FindControl("lvDataPager1") as DataPager;
    dp.SetPageProperties(e.StartRowIndex, e.MaximumRows, false);

    BindListView();
}