本文整理汇总了C#中System.Windows.Controls.TreeViewItem.ExpandSubtree方法的典型用法代码示例。如果您正苦于以下问题：C# TreeViewItem.ExpandSubtree方法的具体用法？C# TreeViewItem.ExpandSubtree怎么用？C# TreeViewItem.ExpandSubtree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。
在下文中一共展示了TreeViewItem.ExpandSubtree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: expandSelected_Click
private void expandSelected_Click(object sender, RoutedEventArgs e)
{
if (treeView1.SelectedItem == null)
{
return;
}
TreeViewItem tvi = GetTreeViewItem(treeView1, treeView1.SelectedItem);
if (tvi != null)
{
tvi.ExpandSubtree();
}
}
// Traverse the TreeView to find the TreeViewItem
// that corresponds to the selected item.
private TreeViewItem GetTreeViewItem(ItemsControl parent, object item)
{
// Check whether the selected item is a direct child of
// the parent ItemsControl.
TreeViewItem tvi =
parent.ItemContainerGenerator.ContainerFromItem(item) as TreeViewItem;
if (tvi == null)
{
// The selected item is not a child of parent, so check
// the child items of parent.
foreach (object child in parent.Items)
{
TreeViewItem childItem =
parent.ItemContainerGenerator.ContainerFromItem(child) as TreeViewItem;
if (childItem != null)
{
// Check the next level for the appropriate item.
tvi = GetTreeViewItem(childItem, item);
}
}
}
return tvi;
}