private void ExpandParent(AyTreeViewItemModel model)
{
if (model.ParentCategory != null)
{
model.ParentCategory.IsExpanded = true;
ExpandParent(model.ParentCategory);
}
}
public AyTreeViewItemModel(string text, string icon, AyTreeViewItemModel parent)
{
this.text = text;
this.parent = parent;
this.Icon = icon;
UpdateDepth(true);
Uid = Guid.NewGuid();
}
private void ExpandAllChildren1(AyTreeViewItemModel model)
{
foreach (var item in model.Children)
{
item.IsExpanded = true;
if (item.Children.Count > 0)
{
ExpandAllChildren1(item);
}
}
}
private void CollapseAllChildren1(AyTreeViewItemModel model)
{
foreach (var item in model.Children)
{
item.IsExpanded = false;
if (item.Children.Count > 0)
{
CollapseAllChildren1(item);
}
}
}
public int GetTreeViewItemCount(AyTreeViewItemModel temp)
{
int a = 1;
if (temp.IsExpanded && temp.Children != null)
{
foreach (var item in temp.Children)
{
a += GetTreeViewItemCount(item);
}
}
return(a);
}
/// <summary>
/// 只移除下一级的子，不会递归移除
/// </summary>
/// <param name="id"></param>
public void RemoveChild(string id)
{
AyTreeViewItemModel d = null;
foreach (var item in Children)
{
if (item.id == id)
{
d = item;
break;
}
}
Children.Remove(d);
d = null;
}
/// <summary>
/// 根据xml生成菜单
/// 用法例如 return AyTreeViewMenuFromXml.Gets(System.IO.Directory.GetCurrentDirectory()+"/Config/sysmenu.xml");
/// 注意，xml节点必须 按照先父节点，然后子节点的顺序增加，结构为 Nav，NavItem不可改变
/// 作者：ay 2015-9-22 11:59:25
/// </summary>
/// <param name="xmlPath"></param>
/// <returns></returns>
public static ObservableCollection <AyTreeViewItemModel> CreateMenuFromXml(string xmlPath)
{
List <AyTreeViewItemModel> items = new List <AyTreeViewItemModel>();
if (System.IO.File.Exists(xmlPath))
{
XDocument doc = XDocument.Load(xmlPath);
IEnumerable <XElement> elements = from xml in doc.Element("Nav").Elements()
select xml;
if (elements.Count() > 0)
{
foreach (var item in elements)
{
string pid = item.Attribute("pid").Value;
string id = item.Attribute("id").Value;
if (pid != "0")
{
AyTreeViewItemModel a = (from o in items where o.Id.Equals(pid) select o).FirstOrDefault();
if (a != null)
{
AyTreeViewItemModel node = new AyTreeViewItemModel(item.Value, item.Attribute("icon").Value, a, item.Attribute("isExpanded").Value == "false" ? false : true, item.Attribute("uri").Value);
node.Pid = pid;
node.Id = id;
node.IsSelected = item.Attribute("isSelected").Value == "false" ? false : true;
}
}
else
{
AyTreeViewItemModel node = new AyTreeViewItemModel(item.Value, item.Attribute("icon").Value, null, item.Attribute("isExpanded").Value == "false" ? false : true, item.Attribute("uri").Value);
node.Pid = pid;
node.Id = id;
node.IsSelected = item.Attribute("isSelected").Value == "false" ? false : true;
items.Add(node);
}
}
}
}
else
{
throw new Exception(xmlPath + "文件不存在！");
}
return(new ObservableCollection <AyTreeViewItemModel>(items));
}
private void AyTreeViewItemCollapsed(object sender, RoutedEventArgs e)
{
TreeViewItem tvi = e.OriginalSource as TreeViewItem;
//tvi.IsExpanded = false;
if (tvi != null && tvi.Items.Count > 0)
{
itemhost = WpfTreeHelper.GetChildObject <ItemsPresenter>(tvi, "ItemsHost");
// double targetHeight = 0;
////添加动画
foreach (var item in tvi.Items)
{
AyTreeViewItemModel temp = item as AyTreeViewItemModel;
if (temp.RelativeItem != null)
{
temp.ParentCategory.IsExpanded = false;
break;
}
}
if (itemhost != null)
{
itemhost.Visibility = Visibility.Visible;
DoubleAnimationUsingKeyFrames HeightKey = new DoubleAnimationUsingKeyFrames();
HeightKey.Duration = new Duration(TimeSpan.FromMilliseconds(ExpandedTime));
HeightKey.FillBehavior = FillBehavior.Stop;
EasingDoubleKeyFrame HeightKey0 = new EasingDoubleKeyFrame(itemhost.ActualHeight, KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(0)));
EasingDoubleKeyFrame HeightKey1 = new EasingDoubleKeyFrame(0);
HeightKey1.EasingFunction = easyOut;
HeightKey.KeyFrames.Add(HeightKey0);
HeightKey.KeyFrames.Add(HeightKey1);
HeightKey.Completed += HeightKey_Completed;
itemhost.BeginAnimation(ItemsPresenter.HeightProperty, HeightKey);
}
}
e.Handled = true;
}
public AyTreeViewItemModel(string text, string icon, AyTreeViewItemModel parent, bool isExpanded, object[] extValues)
: this(text, icon, parent, isExpanded)
{
this.ExtValues = extValues;
}
public AyTreeViewItemModel(string text, string icon, AyTreeViewItemModel parent, bool isExpanded, object[] extValues, int nodetype) : this(text, icon, parent, isExpanded, extValues)
{
this.NodeType = nodetype;
}
public AyTreeViewItemModel(string text, string icon, AyTreeViewItemModel parent, bool isExpanded) : this(text, icon, parent)
{
this.IsExpanded = isExpanded;
}
public AyTreeViewItemModel(string text, string icon, AyTreeViewItemModel parent, int nodetype) : this(text, icon, parent)
{
this.NodeType = nodetype;
}
public AyTreeViewItemModel(string text, AyTreeViewItemModel parent)
: this(text, null, parent)
{
}
/// <summary>
/// 每个时常都是一样的,暂定200
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void AyTreeViewItemExpanded(object sender, RoutedEventArgs e)
{
TreeViewItem tvi = e.OriginalSource as TreeViewItem;
if (tvi != null && tvi.Items.Count > 0)
{
int executeTime = 0;//执行time误差
int durationTime = 300;
double targetHeight = 0;
int expandNode = 0;
//添加动画
foreach (var item in tvi.Items)
{
AyTreeViewItemModel temp = item as AyTreeViewItemModel;
temp.ParentCategory.IsExpanded = true;
if (temp.RelativeItem == null)
{
temp.RelativeItem = TreeViewHelper.GetTreeViewItem2(tvi, temp);
}
expandNode += GetTreeViewItemCount(temp);
if (IsNeedMoveAndOpacity)
{
if (temp.RelativeItem != null)
{
temp.RelativeItem.Opacity = 0;
}
}
}
targetHeight += (TreeViewItemHeight + OtherBorderTreeViewHeight) * expandNode;//计算当前展开的有多少个item
//set itemhost的高度
var itemhost = WpfTreeHelper.GetChildObject <ItemsPresenter>(tvi, "ItemsHost");
if (itemhost != null)
{
itemhost.Visibility = Visibility.Visible;
DoubleAnimationUsingKeyFrames HeightKey = new DoubleAnimationUsingKeyFrames();
HeightKey.FillBehavior = FillBehavior.Stop;
EasingDoubleKeyFrame HeightKey0 = new EasingDoubleKeyFrame(0, KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(0)));
HeightKey.KeyFrames.Add(HeightKey0);
if (IsNeedMoveAndOpacity)
{
EasingDoubleKeyFrame HeightKey1 = new EasingDoubleKeyFrame(targetHeight, KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(ExpandedTime)), easyOut);
HeightKey.KeyFrames.Add(HeightKey1);
}
else
{
EasingDoubleKeyFrame HeightKey1 = new EasingDoubleKeyFrame(targetHeight, KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(ExpandedTime)));
HeightKey.KeyFrames.Add(HeightKey1);
}
itemhost.BeginAnimation(ItemsPresenter.HeightProperty, null);
itemhost.BeginAnimation(ItemsPresenter.HeightProperty, HeightKey);
}
if (IsNeedMoveAndOpacity)
{
int index = 0;
int endIndex = tvi.Items.Count;
//添加动画
foreach (var item in tvi.Items)
{
AyTreeViewItemModel temp = item as AyTreeViewItemModel;
if (temp.RelativeItem != null)
{
index++;
DoubleAnimationUsingKeyFrames OpacityKey = new DoubleAnimationUsingKeyFrames();
EasingDoubleKeyFrame opacityKey10 = new EasingDoubleKeyFrame(0, KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(0)));
EasingDoubleKeyFrame opacityKey0 = new EasingDoubleKeyFrame(0, KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(executeTime)));
EasingDoubleKeyFrame opacityKey1 = new EasingDoubleKeyFrame(1, KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(executeTime + durationTime)));
opacityKey1.EasingFunction = easyIn;
OpacityKey.KeyFrames.Add(opacityKey0);
OpacityKey.KeyFrames.Add(opacityKey1);
ThicknessAnimationUsingKeyFrames MarginKey = new ThicknessAnimationUsingKeyFrames();
var tempThickness = GetTargetThickness(temp.Depth);
MarginKey.KeyFrames.Add(new EasingThicknessKeyFrame(new Thickness(0, 0, 0, 0), KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(0))));
MarginKey.KeyFrames.Add(new EasingThicknessKeyFrame(new Thickness(0, 0, 0, 0), KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(executeTime))));
MarginKey.KeyFrames.Add(new EasingThicknessKeyFrame(tempThickness, KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(executeTime + durationTime))));
opacityKey1.EasingFunction = easyIn;
temp.RelativeItem.BeginAnimation(TreeViewItem.OpacityProperty, null);
temp.RelativeItem.BeginAnimation(TreeViewItem.OpacityProperty, OpacityKey);
temp.RelativeItem.BeginAnimation(TreeViewItem.PaddingProperty, null);
temp.RelativeItem.BeginAnimation(TreeViewItem.PaddingProperty, MarginKey);
OpacityKey = null;
MarginKey = null;
executeTime += 30;
if (endIndex == index)
{
temp.RelativeItem.BringIntoView();
}
}
}
executeTime = 0;
}
}
e.Handled = true;
}
public AuthTreeViewItemModel(string text, string icon, AyTreeViewItemModel parent, bool isExpanded, object extValue) : base(text, icon, parent, isExpanded, extValue)
{
}
