本文整理汇总了C#中System.Windows.Controls.TreeViewItem.SetCurrentValueInternal方法的典型用法代码示例。如果您正苦于以下问题：C# TreeViewItem.SetCurrentValueInternal方法的具体用法？C# TreeViewItem.SetCurrentValueInternal怎么用？C# TreeViewItem.SetCurrentValueInternal使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Windows.Controls.TreeViewItem的用法示例。
在下文中一共展示了TreeViewItem.SetCurrentValueInternal方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: ExpandRecursive
/// <summary>
/// Recursively & syncronously expand all the nodes in this subtree.
/// </summary>
private static void ExpandRecursive(TreeViewItem item)
{
if (item == null)
{
return;
}
// Expand the current item
if (!item.IsExpanded)
{
item.SetCurrentValueInternal(IsExpandedProperty, BooleanBoxes.TrueBox);
}
// ApplyTemplate in order to generate the ItemsPresenter and the ItemsPanel. Note that in the
// virtualizing case even if the item is marked expanded we still need to do this step in order to
// regenerate the visuals because they may have been virtualized away.
item.ApplyTemplate();
ItemsPresenter itemsPresenter = (ItemsPresenter)item.Template.FindName("ItemsHost", item);
if (itemsPresenter != null)
{
itemsPresenter.ApplyTemplate();
}
else
{
item.UpdateLayout();
}
VirtualizingPanel virtualizingPanel = item.ItemsHost as VirtualizingPanel;
item.ItemsHost.EnsureGenerator();
for (int i = 0, count = item.Items.Count; i < count; i++)
{
TreeViewItem subitem;
if (virtualizingPanel != null)
{
// We need to bring the item into view so that the container will be generated.
virtualizingPanel.BringIndexIntoView(i);
subitem = (TreeViewItem)item.ItemContainerGenerator.ContainerFromIndex(i);
}
else
{
subitem = (TreeViewItem)item.ItemContainerGenerator.ContainerFromIndex(i);
// We dont actually need to bring this into view, but we'll do it
// anyways to maintain the same behavior as with a virtualizing panel.
subitem.BringIntoView();
}
if (subitem != null)
{
ExpandRecursive(subitem);
}
}
}