private static void OnBindingItemsChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var treeView = d as PUTreeView;
var items = treeView.BindingItems;
if (items == null)
{
return;
}
treeView.Items.Clear();
foreach (var item in items)
{
var treeViewItem = new PUTreeViewItem()
{
Header = item.Header,
Value = item.Value,
};
treeView.Items.Add(treeViewItem);
if (item.Items != null && item.Items.Count != 0)
{
treeView.AppendItem(item, treeViewItem, 2);
}
}
}
private PUTreeViewItem GenerateTreeViewItem(PUTreeViewItemModel model)
{
var treeViewItem = new PUTreeViewItem()
{
Uid = model.Uid,
Header = model.Header,
Value = model.Value,
Padding = model.Padding,
};
foreach (var child in Generate(model.Items))
{
treeViewItem.Items.Add(child);
}
model.PropertyChanged += delegate
{
treeViewItem.Header = model.Header;
treeViewItem.Value = model.Value;
treeViewItem.Padding = model.Padding;
treeViewItem.Items.Clear();
foreach (var child in Generate(model.Items))
{
treeViewItem.Items.Add(child);
}
};
return(treeViewItem);
}
private PUTreeViewItem GetTreeViewItemByValue(PUTreeViewItem item, object value, bool autoExpand, bool includeParent)
{
if ((includeParent || !item.HasItems) && item.Value != null && item.Value.IsEqual(value))
{
return(item);
}
if (item.HasItems)
{
foreach (var tvi in item.Items)
{
if (autoExpand)
{
(tvi as PUTreeViewItem).IsExpanded = false;
}
var tvix = GetTreeViewItemByValue(tvi as PUTreeViewItem, value, autoExpand, includeParent);
if (tvix != null)
{
if (autoExpand)
{
(tvi as PUTreeViewItem).IsExpanded = true;
}
return(tvix);
}
}
}
return(null);
}
private PUTreeViewItem GetTreeViewItemByHeader(PUTreeViewItem item, object header, bool autoExpand, bool includeParent)
{
if ((includeParent || !item.HasItems) && item.Header != null && item.Header.IsEqual(header))
{
return(item);
}
if (item.HasItems)
{
foreach (var tvi in item.Items)
{
if (autoExpand)
{
(tvi as PUTreeViewItem).IsExpanded = false;
}
var tvix = GetTreeViewItemByHeader(tvi as PUTreeViewItem, header, autoExpand, includeParent);
if (tvix != null)
{
if (autoExpand)
{
(tvi as PUTreeViewItem).IsExpanded = true;
}
return(tvix);
}
}
}
return(null);
}
private void GetChildItemByHeader(ItemCollection items, object header)
{
foreach (var item in items)
{
var tvi = item as PUTreeViewItem;
while (tvi.Items != null && tvi.Items.Count != 0)
{
GetChildItemByHeader(tvi.Items, header);
return;
}
if ((tvi as PUTreeViewItem).Header == header)
{
_item = (tvi as PUTreeViewItem);
}
}
}
private void AppendItem(PUTreeViewItemModel model, PUTreeViewItem parent, int deepth)
{
foreach (var item in model.Items)
{
var treeViewItem = new PUTreeViewItem()
{
Header = item.Header,
Value = item.Value,
Padding = new Thickness(Padding.Left * 2, 0, 0, 0),
};
parent.Items.Add(treeViewItem);
if (item.Items != null && item.Items.Count != 0)
{
AppendItem(item, treeViewItem, deepth + 1);
}
}
}
/// <summary>
/// 通过Value获取子项。
/// </summary>
/// <param name="headerOrValue"></param>
/// <returns></returns>
public PUTreeViewItem GetTreeViewItemByValue(object value)
{
PUTreeViewItem target = null;
foreach (var item in Items)
{
var tvi = item as PUTreeViewItem;
tvi.IsExpanded = false;
var tvix = GetTreeViewItemByValue(tvi, value);
if (tvix != null)
{
target = tvix;
}
}
return(target);
}
/// <summary>
/// 通过标题获取子项。
/// </summary>
/// <param name="headerOrValue"></param>
/// <returns></returns>
public PUTreeViewItem GetTreeViewItemByHeader(object header)
{
PUTreeViewItem target = null;
foreach (var item in Items)
{
var tvi = item as PUTreeViewItem;
tvi.IsExpanded = false;
var tvix = GetTreeViewItemByHeader(tvi, header);
if (tvix != null)
{
tvi.IsExpanded = true;
target = tvix;
}
}
return(target);
}
private void GetChildItemByUID(ItemCollection items, string uid)
{
foreach (var item in items)
{
var tvi = item as PUTreeViewItem;
foreach (var itemx in tvi.Items)
{
GetChildItemByUID(tvi.Items, uid);
var tvix = item as PUTreeViewItem;
foreach (var itemxx in tvix.Items)
{
GetChildItemByUID(tvix.Items, uid);
}
}
if ((tvi as PUTreeViewItem).Uid == uid)
{
_item = (tvi as PUTreeViewItem);
return;
}
}
}
private PUTreeViewItem GetTreeViewItemByValue(PUTreeViewItem item, object value)
{
if (item.Value.Equals(value))
{
return(item);
}
if (item.HasItems)
{
foreach (var tvi in item.Items)
{
(tvi as PUTreeViewItem).IsExpanded = false;
var tvix = GetTreeViewItemByValue(tvi as PUTreeViewItem, value);
if (tvix != null)
{
(tvi as PUTreeViewItem).IsExpanded = true;
return(tvix);
}
}
}
return(null);
}
private PUTreeViewItem GetTreeViewItemByHeader(PUTreeViewItem item, object header)
{
if (item.Header.Equals(header))
{
return(item);
}
if (item.HasItems)
{
foreach (var tvi in item.Items)
{
(tvi as PUTreeViewItem).IsExpanded = false;
var tvix = GetTreeViewItemByHeader(tvi as PUTreeViewItem, header);
if (tvix != null)
{
(tvi as PUTreeViewItem).IsExpanded = true;
return(tvix);
}
}
}
return(null);
}
private PUTreeViewItem GetItemByValue(object value)
{
PUTreeViewItem target = null;
foreach (var item in Items)
{
var tvi = item as PUTreeViewItem;
tvi.IsExpanded = false;
var tvix = GetTreeViewItemByValue(tvi, value);
if (tvix != null)
{
var parent = tvix.Parent as PUTreeViewItem;
if (parent != null)
{
parent.IsExpanded = true;
}
target = tvix;
}
}
return(target);
}
internal void OnChoosedItemChanged(PUTreeViewItem oldItem, PUTreeViewItem newItem)
{
RoutedPropertyChangedEventArgs <PUTreeViewItem> arg = new RoutedPropertyChangedEventArgs <PUTreeViewItem>(oldItem, newItem, ChoosedItemChangedEvent); RaiseEvent(arg);
}
