/// <summary>
/// 选中子节点同时选中父节点
/// </summary>
/// <param name="list">实体列表</param>
/// <param name="iD">节点ID</param>
/// <param name="fatherID">节点的父节点ID</param>
/// <param name="isSelected">选中状态</param>
/// <returns></returns>
private PropertyNodeItem SonClickFather(List <PropertyNodeItem> list, int iD, int fatherID, bool?isSelected)
{
List <PropertyNodeItem> fulllist = this.tvProperties.ItemsSource as List <PropertyNodeItem>;
foreach (PropertyNodeItem all in list)
{
if (all.Children.Count != 0 && all.ID == fatherID)
{
all.Check = isSelected;
//if(isSelected == true)
//{
// SonClickFather(fulllist,all.ID,all.FatherID,isSelected);
//}
//else if(isSelected == false)
//{
// SonClickFather(fulllist,all.ID,all.FatherID,isSelected);
//}
//else if(isSelected == null)
//{
// SonClickFather(fulllist,all.ID,all.FatherID,isSelected);
//}
SonClickFather(fulllist, all.ID, all.FatherID, isSelected);
}
else if (all.Children.Count != 0 && all.ID != fatherID)
{
SonClickFather(all.Children, iD, fatherID, isSelected);
}
if (all.ID == realID && returnPNI == null)
{
returnPNI = all;
realID = 0;
}
}
return(returnPNI);
}
private void menuitem_Click(object sender, RoutedEventArgs e)
{
MenuItem menuitem = sender as MenuItem;
bool click = Convert.ToBoolean(menuitem.Tag);
if (click)
{
foreach (var item in tvProperties.Items)
{
TreeViewItem tvi = tvProperties.ItemContainerGenerator.ContainerFromItem(item) as TreeViewItem;
tvi.ExpandSubtree();
PropertyNodeItem pni = tvi.DataContext as PropertyNodeItem;
TVIChoiced(pni, click);
}
}
else
{
//foreach(var item in tvProperties.Items)
//{
// TreeViewItem tvi = tvProperties.ItemContainerGenerator.ContainerFromItem(item) as TreeViewItem;
// tvi.IsExpanded = false;
// PropertyNodeItem pni = tvi.DataContext as PropertyNodeItem;
// TVIChoiced(pni,click);
//}
SetNodeExpandedState(tvProperties, click);
}
}
/// <summary>
/// 保持有子节点已经勾中的中间层的钩的状态不变
/// </summary>
/// <param name="child">节点的子节点们</param>
/// <param name="pni">节点信息</param>
/// <returns></returns>
private bool?MiddleClickLast(List <PropertyNodeItem> child, PropertyNodeItem pni)
{
bool?finalcheck = pni.Check;
foreach (PropertyNodeItem self in child)
{
if (self.Children.Count != 0)
{
MiddleClickLast(self.Children, self);
}
else
{
List <PropertyNodeItem> list = this.tvProperties.ItemsSource as List <PropertyNodeItem>;
if (self.Check == true)
{
SonClickFather(list, pni.ID, pni.FatherID, null);
return(true);
}
//else if(self.Check == null)
//{
// SonClickFather(list,pni.ID,pni.FatherID,null);
// return null;
//}
}
}
return(finalcheck);
}
/// <summary>
/// 保持父节点的兄弟节点选中时,取消父节点,而保持根节点的状态
/// </summary>
/// <param name="list">数据</param>
/// <param name="pni">节点信息</param>
/// <returns></returns>
private int MiddleClickNotLast(List <PropertyNodeItem> list, PropertyNodeItem pni)
{
int brotherFID = 0;
foreach (PropertyNodeItem all in list)
{
if (all.Children.Count != 0)
{
brotherFID = MiddleClickNotLast(all.Children, pni);
}
if (all.ID == pni.FatherID)
{
brotherFID = all.FatherID;
}
if (all.FatherID == brotherFID && all.Check == true)
{
List <PropertyNodeItem> fulllist = this.tvProperties.ItemsSource as List <PropertyNodeItem>;
SonClickFather(fulllist, all.ID, all.FatherID, null);
}
else if (all.FatherID == brotherFID && all.Check == null)
{
List <PropertyNodeItem> fulllist = this.tvProperties.ItemsSource as List <PropertyNodeItem>;
SonClickFather(fulllist, all.ID, all.FatherID, null);
}
}
return(brotherFID);
}
/// <summary>
/// 保持有任意子节点选中时的它的根节点状态
/// </summary>
/// <param name="list"></param>
/// <param name="pni"></param>
private void KeepFather(List <PropertyNodeItem> list, PropertyNodeItem pni)
{
List <PropertyNodeItem> fulllist = this.tvProperties.ItemsSource as List <PropertyNodeItem>;
foreach (PropertyNodeItem item in list)
{
if (item.ID != pni.ID && item.Check == true)
{
SonClickFather(fulllist, item.ID, item.FatherID, null);
return;
}
else if (item.ID != pni.ID && item.Check == null)
{
SonClickFather(fulllist, item.ID, item.FatherID, null);
return;
}
else
{
if (item.Children.Count != 0)
{
KeepFather(item.Children, pni);
}
}
}
}
/// <summary>
/// 全部遍历符合的节点,把它的null状态变成true
/// </summary>
/// <param name="list"></param>
/// <param name="fatherpni"></param>
/// <returns></returns>
private bool?AllCheck(List <PropertyNodeItem> list, PropertyNodeItem fatherpni)
{
bool?returncheck = false;
if (fatherpni != null)
{
returncheck = fatherpni.Check;
}
//List<PropertyNodeItem> fulllist = this.tvProperties.ItemsSource as List<PropertyNodeItem>;
foreach (PropertyNodeItem pni in list)
{
if (pni.Children.Count != 0)
{
pni.Check = AllCheck(pni.Children, pni);
}
if (pni.Check == true)
{
childNum++;
}
}
if (fatherpni != null && childNum == fatherpni.Children.Count)
{
fatherpni.Check = true;
returncheck = true;
}
childNum = 0;
return(returncheck);
}
private void TVIChoiced(PropertyNodeItem pni, bool click)
{
if (pni != null)
{
if (pni.Children.Count != 0)
{
pni.Check = click;
foreach (PropertyNodeItem chlid in pni.Children)
{
TVIChoiced(chlid, click);
}
}
else
{
pni.Check = click;
}
}
}
private void CheckBox_Click(object sender, RoutedEventArgs e)
{
CheckBox cb = sender as CheckBox;
ContentPresenter cp = cb.TemplatedParent as ContentPresenter;
TreeViewItem tvi = cp.TemplatedParent as TreeViewItem;
PropertyNodeItem pni = tvi.DataContext as PropertyNodeItem;
List <PropertyNodeItem> list = this.tvProperties.ItemsSource as List <PropertyNodeItem>;
if (pni.FatherID == 0)
{
if (cb.IsChecked == false)
{
cb.IsChecked = null;
}
else if (cb.IsChecked == null)
{
cb.IsChecked = false;
}
AllCheck(list, null);
}
else
{
//true
if (cb.IsChecked == true)
{
tvi.IsSelected = true;
CheckClickID(list, pni.ID, pni.FatherID, true);
}
//false
else if (cb.IsChecked == null)
{
tvi.IsSelected = false;
cb.IsChecked = false;
CheckClickID(list, pni.ID, pni.FatherID, false);
}
//null
else
{
tvi.IsSelected = false;
cb.IsChecked = null;
}
}
}
/// <summary>
/// 节点收缩
/// </summary>
/// <param name="control">TreeView控件</param>
/// <param name="expandNode">true:展开 false:收缩</param>
private void SetNodeExpandedState(ItemsControl control, bool expandNode)
{
if (control != null)
{
foreach (object item in control.Items)
{
TreeViewItem treeItem = control.ItemContainerGenerator.ContainerFromItem(item) as TreeViewItem;
if (treeItem != null && treeItem.HasItems)
{
PropertyNodeItem pni = treeItem.DataContext as PropertyNodeItem;
TVIChoiced(pni, expandNode);
treeItem.IsExpanded = expandNode;
if (treeItem.ItemContainerGenerator.Status != System.Windows.Controls.Primitives.GeneratorStatus.ContainersGenerated)
{
treeItem.UpdateLayout();
}
SetNodeExpandedState(treeItem as ItemsControl, expandNode);
}
}
}
}
private void ShowTreeView()
{
List <PropertyNodeItem> itemList = new List <PropertyNodeItem>();
PropertyNodeItem node1 = new PropertyNodeItem()
{
ID = 1,
FatherID = 0,
DisplayName = "Node No.1",
Name = "This is the discription of Node1. This is a folder.",
Check = false
};
PropertyNodeItem node1tag1 = new PropertyNodeItem()
{
ID = 2,
FatherID = 1,
DisplayName = "Tag No.1",
Name = "This is the discription of Tag 1. This is a tag.",
Check = false
};
node1.Children.Add(node1tag1);
PropertyNodeItem node1tag2 = new PropertyNodeItem()
{
ID = 3,
FatherID = 1,
DisplayName = "Tag No.2",
Name = "This is the discription of Tag 2. This is a tag.",
Check = false
};
node1.Children.Add(node1tag2);
itemList.Add(node1);
PropertyNodeItem node2 = new PropertyNodeItem()
{
ID = 4,
FatherID = 0,
DisplayName = "Node No.2",
Name = "This is the discription of Node 2. This is a folder.",
Check = false
};
PropertyNodeItem node2tag3 = new PropertyNodeItem()
{
ID = 5,
FatherID = 4,
DisplayName = "Tag No.3",
Name = "This is the discription of Tag 3. This is a tag.",
Check = false
};
node2.Children.Add(node2tag3);
PropertyNodeItem node2tag4 = new PropertyNodeItem()
{
ID = 6,
FatherID = 4,
DisplayName = "Tag No.4",
Name = "This is the discription of Tag 4. This is a tag.",
Check = false
};
node2.Children.Add(node2tag4);
//itemList.Add(node2);
PropertyNodeItem node1tag1tag1 = new PropertyNodeItem()
{
ID = 7,
FatherID = 2,
DisplayName = "TagTag No.1",
Name = "This is the discription of TagTag 1. This is a tag.",
Check = false
};
node1tag1.Children.Add(node1tag1tag1);
PropertyNodeItem node1tag1tag2 = new PropertyNodeItem()
{
ID = 8,
FatherID = 2,
DisplayName = "TagTag No.2",
Name = "This is the discription of TagTag 2. This is a tag.",
Check = false
};
node1tag1.Children.Add(node1tag1tag2);
PropertyNodeItem node1tag1tag1tag1 = new PropertyNodeItem()
{
ID = 9,
FatherID = 7,
DisplayName = "TagTagTag No.1",
Name = "This is the discription of TagTagTag 1. This is a tag.",
Check = false
};
node1tag1tag1.Children.Add(node1tag1tag1tag1);
PropertyNodeItem node1tag1tag1tag2 = new PropertyNodeItem()
{
ID = 10,
FatherID = 7,
DisplayName = "TagTagTag No.2",
Name = "This is the discription of TagTagTag 2. This is a tag.",
Check = false
};
node1tag1tag1.Children.Add(node1tag1tag1tag2);
this.tvProperties.ItemsSource = itemList;
}
private void CheckClickID(List <PropertyNodeItem> list, int ID, int FatherID, bool?IsSelected)
{
#region 旧坑 性能高 逻辑无比困难 未实现
//List<int> returnID = new List<int>();
//returnID.Add(FatherID);
//returnID.Add(0);
//foreach(PropertyNodeItem p in list)
//{
// if(p.Children.Count != 0)
// {
// List<PropertyNodeItem> chlid = p.Children;
// returnID = CheckClickID(chlid,ID,FatherID,IsSelected);
// //保持有子节点已经勾中的中间层的钩的不变
// if(ID == p.ID && returnID[1] == -1)
// {
// p.Check = true;
// tvProperties.UpdateLayout();
// }
// //子节点没有勾中的中间层的钩子改变
// else if(ID == p.ID && returnID[1] == p.Children.Count)
// {
// p.Check = IsSelected;
// tvProperties.UpdateLayout();
// }
// }
// else
// {
// //保持有子节点已经勾中的中间层的钩的不变
// if(p.FatherID != returnID[1] && p.Check)
// {
// //有一个就行 所以直接return
// returnID[1] = -1;
// }
// //子节点没有勾中的中间层的钩子改变
// if(p.FatherID != returnID[1] && !p.Check)
// {
// //要循环完全部子节点才能判断是不是全部都没有勾中
// returnID[1]++;
// }
// //保持多个子节点勾中而取消一个勾中一个子节点时的父节点状态
// else if(p.ID != ID && p.FatherID == returnID[1] && p.Check)
// {
// returnID[1] = -2;
// }
// }
// //选中子节点同时选中父节点
// if(returnID[0] == p.ID)
// {
// p.Check = IsSelected;
// if(p.FatherID != 0)
// {
// returnID[0] = p.FatherID;
// return returnID;
// }
// }
//}
//return returnID;
#endregion
#region 新坑 性能低 多循环 已实现
if (realID == 0)
{
realID = ID;
}
if (IsSelected == true)
{
PropertyNodeItem pni = SonClickFather(list, ID, FatherID, null);
if (pni.Children.Count != 0)
{
pni.Check = MiddleClickLast(pni.Children, pni);
}
else if (pni.Check == false)
{
MiddleClickNotLast(list, pni);
}
returnPNI = null;
KeepFather(list, pni);
AllCheck(list, null);
}
else if (IsSelected == false)
{
PropertyNodeItem pni = SonClickFather(list, ID, FatherID, IsSelected);
if (pni.Children.Count != 0)
{
pni.Check = MiddleClickLast(pni.Children, pni);
}
else if (pni.Check == false)
{
MiddleClickNotLast(list, pni);
}
returnPNI = null;
//null的状态也要保持
KeepFather(list, pni);
AllCheck(list, null);
}
#endregion
}