RadListView - ＆＃34;加载更多项目＆＃34;使用IncrementalLoadingMode =＆＃34;明确＆＃34;

Question

使用Telerik的RadListView和IncrementalLoadingMode =＆＃34;明确＆＃34;，然后＆＃34;加载更多的项目＆＃34;即使列表视图实例中没有项目，按钮也始终可见。

有没有办法隐藏＆＃34;加载更多项目＆＃34;没有物品时按钮？没有物品时按钮就没有意义

Answer 1

“加载更多项目”实际上是Telerik中的DataGridLoadDataControl，您可以尝试通过VisualTreeHelper在UI可视化树中找到它，然后将其设置为不可见。例如（grid是RadDataGrid控件的名称）：

private void btnloadcompleted_Click(object sender, RoutedEventArgs e)
{ 
    IEnumerable<DataGridLoadDataControl> items = FindVisualChildren<DataGridLoadDataControl>(grid);
    foreach (DataGridLoadDataControl item in items)
    {
        item.Visibility = Visibility.Collapsed; 
    }
}
private static IEnumerable<T> FindVisualChildren<T>(DependencyObject depObj) where T : DependencyObject
{
    if (depObj != null)
    {
        for (int i = 0; i < VisualTreeHelper.GetChildrenCount(depObj); i++)
        {
            DependencyObject child = VisualTreeHelper.GetChild(depObj, i);
            if (child != null && child is T)
            {
                yield return (T)child;
            }

            foreach (T childOfChild in FindVisualChildren<T>(child))
            {
                yield return childOfChild;
            }
        }
    }
}