static void ItemContainerGenerator_ItemsChanged(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e, ListView parent)
{
if (parent != null)
{
GetCurrentSortColumn(parent).Sort();
}
}
private void ItemContainerGenerator_ItemsChanged(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
for (var i = 0; i < ListBox.ItemContainerGenerator.Items.Count; i++)
{
try
{
var element =
(FrameworkElement)ListBox.ItemContainerGenerator.ContainerFromIndex(i);
if (element == null)
{
continue;
}
object found;
found = WpfTreeUtilities.FindVisualChild <StackPanel>(element).FindName("Number");
var textBlock = found as TextBlock;
if (textBlock == null)
{
continue;
}
var bindingExpression = BindingOperations.GetMultiBindingExpression(textBlock, TextBlock.TextProperty);
bindingExpression?.UpdateTarget();
}
catch (Exception ex)
{
Debug.WriteLine("Oh no " + ex);
}
}
}
protected override void OnItemsChanged(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs args)
{
switch (args.Action)
{
case NotifyCollectionChangedAction.Remove:
System.Diagnostics.Debug.Assert(args.ItemUICount <= 1);
if (args.ItemUICount > 0)
{
OnChildRemoved(args.Position.Index);
}
break;
}
if (args.Action == NotifyCollectionChangedAction.Move)
{
// We need to temporarily save the offsets because the base implementation
// doesn't always respect 'Move'
System.Diagnostics.Debug.Assert(args.ItemUICount == 1);
var oldIndex = args.OldPosition.Index + args.OldPosition.Offset;
var newIndex = args.Position.Index + args.Position.Offset;
var child = InternalChildren[oldIndex];
_movedItemOffsets[newIndex] = VisualTreeHelper.GetOffset(child);
}
base.OnItemsChanged(sender, args);
}
void ItemContainerGenerator_ItemsChanged(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
if (e.Action == NotifyCollectionChangedAction.Add)
{
//Messages.ScrollToBottom();
}
}
private void ItemContainerGenerator_ItemsChanged(object sender,
System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
if (AssociatedObject.Items.Any())
{
AssociatedObject.ScrollIntoView(AssociatedObject.Items[AssociatedObject.Items.Count - 1]);
}
}
private void ItemContainerGenerator_ItemsChanged(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
if (_scrollViewer == null)
{
_scrollViewer = VisualHelper.GetChild <ScrollViewer>(ListBoxChat);
}
_scrollViewer?.ScrollToBottom();
}
private void listView_ItemUpdated(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
canvas123.Children.Clear();
foreach (Dogadjaj d in listaDog)
{
canvasCreated(d);
}
}
private void ItemContainerGenerator_ItemsChanged(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
if (e == null)
{
throw new ArgumentNullException(nameof(e));
}
this.VisibleItemsList = this.ItemContainerGenerator.Items;
VisibleItemListChanged?.Invoke(VisibleItemsList);
}
private void OnItemsChanged(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
if (0 < this.AssociatedObject.Items.Count)
{
if (this.AssociatedObject.RowDetailsTemplate == null && this.HasRowDetails)
{
this.CreateDataGridRowDetailsTemplate();
}
}
}
public static async Task Add(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
var itemsControl = sender as ItemsControl;
if (itemsControl == null)
{
return;
}
//最上位への追加でない場合リターン
if (e.Position.Index > 0)
{
return;
}
ScrollViewer scrollViewer = null;
var controlTemplate = itemsControl.Template;
if (controlTemplate != null)
{
scrollViewer = controlTemplate.FindName("ScrollViewer", itemsControl) as ScrollViewer;
}
if (scrollViewer != null)
{
var height = scrollViewer.ExtentHeight;
var verticalOffset = ScrollViewerBehavior.GetVerticalOffset(scrollViewer);
var type = GetAddingScroll(itemsControl);
//少しでもスクロールされている場合、その表示内容が同じ位置に来るように再計算
if (type == Types.Timeline && verticalOffset != 0 || type == Types.Statuses)
{
await Task.Run(() =>
{
for (int i = 0; i < 3000; i++)
{
//描画されるまで最大3秒待つ
if (height != scrollViewer.ExtentHeight)
{
break;
}
System.Threading.Thread.Sleep(1);
}
});
//追加後の高さ
var newHeight = scrollViewer.ExtentHeight;
//増えた高さ分だけスクロール位置を下げる
ScrollViewerBehavior.SetVerticalOffset(scrollViewer, ScrollViewerBehavior.GetVerticalOffset(scrollViewer) + (newHeight - height));
}
}
}
private void ItemContainerGenerator_ItemsChanged(object sender,
System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
var childscount = VisualTreeHelper.GetChildrenCount(AssociatedObject);
for (int i = 0; i < childscount; i++)
{
if (VisualTreeHelper.GetChild(AssociatedObject, i) is ScrollViewer)
{
var sv = VisualTreeHelper.GetChild(AssociatedObject, i) as ScrollViewer;
sv.ScrollToVerticalOffset(sv.ScrollableHeight);
break;
}
}
}
/// <summary>
/// Handles the ItemsChanged event of the ItemContainerGenerator control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.Windows.Controls.Primitives.ItemsChangedEventArgs"/> instance containing the event data.</param>
private void ItemContainerGenerator_ItemsChanged(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add)
{
Dispatcher.BeginInvoke(new ItemChangedDelegate(i =>
{
ListBoxItem item = (ListBoxItem)this.ItemContainerGenerator.ContainerFromIndex(i);
if (item != null)
{
VisualStateManager.GoToState(item, "BeforeLoaded", false);
VisualStateManager.GoToState(item, "AfterLoaded", true);
}
}), e.Position.Index + e.Position.Offset);
}
else if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove)
{
Dispatcher.BeginInvoke(new ItemChangedDelegate(i =>
{
ListBoxItem item = (ListBoxItem)this.ItemContainerGenerator.ContainerFromIndex(i);
if (item != null)
{
VisualStateManager.GoToState(item, "BeforeUnloaded", true);
}
}), e.Position.Index + e.Position.Offset);
}
else if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace)
{
Dispatcher.BeginInvoke(new ItemChangedDelegate(i =>
{
ListBoxItem item = (ListBoxItem)this.ItemContainerGenerator.ContainerFromIndex(i);
if (item != null)
{
VisualStateManager.GoToState(item, "BeforeLoaded", true);
VisualStateManager.GoToState(item, "AfterLoaded", true);
}
}), e.Position.Index + e.Position.Offset);
}
else if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Reset)
{
var observableBefore = from t in Observable.Interval(TimeSpan.FromMilliseconds(ListAnimationInterval / 2.0d)).TimeInterval().Take(this.Items.Count)
select t.Value;
var observableAfter = from t in Observable.Interval(TimeSpan.FromMilliseconds(ListAnimationInterval / 2.0d)).TimeInterval().Take(this.Items.Count)
select t.Value;
// This timer will allow us to delay slightly the afterloaded states
System.Windows.Threading.DispatcherTimer dt = new System.Windows.Threading.DispatcherTimer();
dt.Tick += (sen, evt) =>
{
dt.Stop();
observableAfter.Subscribe(i => Dispatcher.BeginInvoke(() =>
{
if (this.ItemContainerGenerator.ContainerFromIndex((int)i) == null)
{
return;
}
VisualStateManager.GoToState(
(ListBoxItem)this.ItemContainerGenerator.ContainerFromIndex((int)i), "AfterLoaded", true);
}));
};
dt.Interval = TimeSpan.FromMilliseconds(ListAnimationInterval * 2.0d);
observableBefore.Subscribe(i => Dispatcher.BeginInvoke(() =>
{
if (this.ItemContainerGenerator.ContainerFromIndex((int)i) == null)
{
return;
}
VisualStateManager.GoToState(
(ListBoxItem)this.ItemContainerGenerator.ContainerFromIndex((int)i), "BeforeLoaded", true);
}));
dt.Start();
}
}
protected virtual new void OnItemsChanged(Object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs args)
{
Contract.Requires(args != null);
}
private void ItemContainerGenerator_ItemsChanged(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e) => DataLoadedProgressBar.IsIndeterminate = false;
protected override void OnItemsChanged(Object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs args)
{
}
private void list_changes(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
}
private void list_changes(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
listBox1.UpdateLayout();
listBox1.ScrollIntoView(fixedItem);
}
private void ItemContainerGenerator_ItemsChanged(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e) => _model.CheckUpdateAsync();
protected virtual new void OnItemsChanged(Object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs args)
{
}
private void ItemContainerGenerator_ItemsChanged(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
svLines.ScrollToEnd();
}
void ItemContainerGenerator_ItemsChanged(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
//throw new NotImplementedException();
}
private void ItemContainerGenerator_ItemsChanged(object sender, System.Windows.Controls.Primitives.ItemsChangedEventArgs e)
{
SyncSelectedItem();
}
