private void ItemContainerGenerator_StatusChanged(object sender, EventArgs e)
{
if (this.ItemContainerGenerator.Status == System.Windows.Controls.Primitives.GeneratorStatus.ContainersGenerated)
{
if (this.restoreFocusItemInfo != null)
{
TreeGridViewItem tgvi = this.ItemContainerGenerator.ContainerFromItem(this.restoreFocusItemInfo) as TreeGridViewItem;
if (tgvi != null)
{
if (this.IsFocused)
{
tgvi.Focus();
this.restoreFocusItemInfo = null;
}
}
}
}
}
/// <summary>
/// Move focus to parent item
/// </summary>
/// <param name="childItem">The currently focused item</param>
/// <returns>true if succeeds; otherwise false</returns>
internal bool FocusToParentItem(TreeGridViewItem childItem)
{
TreeGridViewItemInfo childInfo = this.ItemContainerGenerator.ItemFromContainer(childItem) as TreeGridViewItemInfo;
if (childInfo != null)
{
var parentInfo = this.GetParentItemInfo(childInfo);
if (parentInfo != null)
{
this.ScrollIntoView(parentInfo);
TreeGridViewItem parentContainer = this.ItemContainerGenerator.ContainerFromItem(parentInfo) as TreeGridViewItem;
if (parentContainer != null)
{
return(parentContainer.Focus());
}
}
}
return(false);
}