private void gridview_ContainerContentChanging(ListViewBase sender, ContainerContentChangingEventArgs args)
{
GridView gridview = sender as GridView;
var scroll = Load.FindChildOfType <ScrollViewer>(gridview);
var text = Load.FindChildOfType <TextBlock>(gridview);
scroll.ViewChanged += async(s, a) =>
{
if ((scroll.VerticalOffset >= scroll.ScrollableHeight - 50 || scroll.ScrollableHeight == 0) && !isLoading)
{
text.Visibility = Visibility.Visible;
int count0 = gridview.Items.Count;
int page = gridview.Items.Count / 20 + 1;
isLoading = true;
List <Models.Video> temps = await ContentServ.GetVideosAsync(int.Parse(gridview.Tag.ToString()), page);
if (temps == null)
{
return;
}
if (temps.Count < 20)
{
gridview.ContainerContentChanging -= gridview_ContainerContentChanging;
text.Text = "装填完毕！";
return;
}
text.Visibility = Visibility.Collapsed;
foreach (var item in temps)
{
gridview.Items.Add(item);
}
isLoading = false;
}
};
}
private async void Pivot_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
int index = pivot.SelectedIndex;
GridView gridview = FindName("gridview" + index.ToString()) as GridView;
if (gridview.Items.Count == 0)
{
var temp = await ContentServ.GetVideosAsync(int.Parse(gridview.Tag.ToString()), 1);
if (temp != null)
{
foreach (var item in temp)
{
gridview.Items.Add(item);
}
}
}
}