//protected override void ClearContainerForItemOverride(DependencyObject element, object item)
//{
// if (!PlatformIndependent.IsWindowsPhoneDevice && ItemsSource != null && ItemsSource is IResizeableItems)
// {
// var gridview = (element as ListViewItem).ContentTemplateRoot as VariableSizedGridView;
// gridview.ItemClick -= Gridview_ItemClick;
// //variableSizedGridViews.Remove(gridview);
// }
// base.ClearContainerForItemOverride(element, item);
//}
private void GridviewItem_Loaded(object sender, RoutedEventArgs e)
{
var gridview = (sender as ListViewItem).ContentTemplateRoot as VariableSizedGridView;
var resizeableItem = ResizeableItems.GetItem(this.ActualWidth);
if (resizeableItem != null)
{
resizeableItem.ItemWidth = (int)(this.ActualWidth / resizeableItem.Columns - 7);
gridview.ResizeableItem = resizeableItem;
}
gridview.ItemClick -= Gridview_ItemClick;
gridview.ItemClick += Gridview_ItemClick;
//gridview.ItemTemplate = VirtualizedVariableSizedGridViewItemTemplate;
Binding binding = new Binding();
binding.Source = this;
binding.Mode = BindingMode.OneWay;
binding.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged;
binding.Path = new PropertyPath("VirtualizedVariableSizedGridViewItemTemplate");
gridview.SetBinding(GridView.ItemTemplateProperty, binding);
Binding binding1 = new Binding();
binding1.Source = this;
binding1.Mode = BindingMode.OneWay;
binding1.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged;
binding1.Path = new PropertyPath("VirtualizedVariableSizedInternalGridViewContainerStyle");
gridview.SetBinding(GridView.ItemContainerStyleProperty, binding1);
(sender as ListViewItem).Loaded -= GridviewItem_Loaded;
}
protected override void PrepareContainerForItemOverride(DependencyObject element, object item)
{
base.PrepareContainerForItemOverride(element, item);
if (!PlatformIndependent.IsWindowsPhoneDevice && ItemsSource != null && ItemsSource is IResizeableItems)
{
base.ItemClick -= VirtualizedVariableSizedGridView_ItemClick;
var gridviewItem = element as ListViewItem;
if (VirtualizedVariableSizedGridViewItemContainerStyle != null)
{
gridviewItem.Style = VirtualizedVariableSizedGridViewItemContainerStyle;
}
//Container Recycling, so ContentTemplateRoot maybe not null.
if (gridviewItem.ContentTemplateRoot != null)
{
var gridview = gridviewItem.ContentTemplateRoot as VariableSizedGridView;
//variableSizedGridViews.Add(gridview);
var resizeableItem = ResizeableItems.GetItem(this.ActualWidth);
if (resizeableItem != null)
{
resizeableItem.ItemWidth = (int)(this.ActualWidth / resizeableItem.Columns - 7);
gridview.ResizeableItem = resizeableItem;
gridview.ItemClick -= Gridview_ItemClick;
gridview.ItemClick += Gridview_ItemClick;
}
if (gridview.ItemContainerStyle == null)
{
Binding binding1 = new Binding();
binding1.Source = this;
binding1.Mode = BindingMode.OneWay;
binding1.UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged;
binding1.Path = new PropertyPath("VirtualizedVariableSizedInternalGridViewContainerStyle");
gridview.SetBinding(GridView.ItemContainerStyleProperty, binding1);
}
}
else
{
gridviewItem.Loaded -= GridviewItem_Loaded;
gridviewItem.Loaded += GridviewItem_Loaded;
}
}
}
private void OnMeasureOverride(Size availableSize)
{
if (ItemsSource != null && ItemsSource is IResizeableItems && availableSize != Size.Empty)
{
var resizeableItem = ResizeableItems.GetItem(availableSize.Width);
if (resizeableItem != null)
{
resizeableItem.ItemWidth = (int)(availableSize.Width / resizeableItem.Columns - 7);
foreach (var item in this.Items)
{
var gridviewItem = this.ContainerFromItem(item) as ListViewItem;
//not null, it's in viewport, so it need to update.
if (gridviewItem != null && gridviewItem.ContentTemplateRoot != null)
{
var gridview = gridviewItem.ContentTemplateRoot as VariableSizedGridView;
gridview.ResizeableItem = null;
gridview.ResizeableItem = resizeableItem;
}
}
}
}
}
