/// <summary>
/// 递归向下查找
/// </summary>
TreeNodeEntityViewModel FindDownward(List <TreeNodeEntityViewModel> nodes, string id)
{
if (nodes == null)
{
return(null);
}
for (int i = 0; i < nodes.Count; i++)
{
if (nodes[i].ID == id)
{
return(nodes[i]);
}
TreeNodeEntityViewModel node = FindDownward(nodes[i].Nodes, id);
if (node != null)
{
return(node);
}
}
return(null);
}
public void LoadTyeEncodeCheckDevice(List <TreeNodeEntity> uses)
{
ObservableCollection <TreeNodeEntityViewModel> result = new ObservableCollection <TreeNodeEntityViewModel>();
var all = new TreeNodeEntityViewModel(new TreeNodeEntity()
{
Name = "全部"
});
all.IsSelected = true;
result.Add(all);
foreach (var item in uses)
{
result.Add(new TreeNodeEntityViewModel(item));
}
this.EntityCheck = result;
this.SelectEntityNode = all;
}
public void RefreshNodes(string text, TreeNodeEntityViewModel selectNode)
{
if (selectNode == null)
{
return;
}
matchNodes.Clear();
int code;
bool isCode = text != null && text.StartsWith("0") && int.TryParse(text.Trim('0'), out code) || text == "0";
Predicate <string> strMatch = l =>
{
if (l == null)
{
return(false);
}
if (string.IsNullOrEmpty(text))
{
return(true);
}
return(l.Contains(text));
};
Predicate <string> codeMatch = l =>
{
if (l == null)
{
return(false);
}
if (string.IsNullOrEmpty(text))
{
return(true);
}
return(l.StartsWith(text.TrimEnd('0')));
};
Predicate <TreeNodeEntityViewModel> match = l =>
{
bool result = isCode ? codeMatch(l.Code) : strMatch(l.Name) || strMatch(l.NamePY);
if (result)
{
matchNodes.Add(l);
}
return(result);
};
Action <List <TreeNodeEntityViewModel> > action = null;
action = k =>
{
foreach (var item in k)
{
//item.Visibility = Visibility.Visible;
// Do：前序遍历
if (item.Nodes.Count > 0)
{
action(item.Nodes);
}
item.Visibility = match(item) ? Visibility.Visible : Visibility.Collapsed;
// Do：检查子项是否有显示的
if (item.Nodes.Count > 0)
{
item.Visibility = item.Nodes.Exists(l => l.Visibility == Visibility.Visible) ? Visibility.Visible : Visibility.Collapsed;
}
}
};
foreach (var item in this.Nodes)
{
// Do：先检查第一级别过滤设备节点
item.Visibility = selectNode.Name == "全部" || selectNode.Name == item.Name ?
item.Visibility = Visibility.Visible : item.Visibility = Visibility.Collapsed;
if (item.Visibility == Visibility.Collapsed)
{
continue;
}
item.IsExpanded = selectNode.Name == item.Name;
// Do：递归检查下面子节点，只检查是否匹配
action(item.Nodes);
// Do：当前项匹配或者有匹配的子项时显示
item.Visibility = match(item) || item.Nodes.Exists(l => l.Visibility == Visibility.Visible) ? Visibility.Visible : Visibility.Collapsed;
}
//// Do：只有一项匹配
//if (matchNodes.Count == 1)
//{
// Action<TyeEncodeDeviceEntityNode> ExpandParent = null;
// ExpandParent = l =>
// {
// l.IsExpanded = true;
// if (l.Parent != null)
// {
// ExpandParent(l.Parent);
// }
// };
// ExpandParent(matchNodes.First());
// matchNodes.First().IsSelected = true;
//}
// Message：目前需求匹配项都展开 2019-03-23
if (!string.IsNullOrEmpty(text) && matchNodes.Count > 0)
{
Action <TreeNodeEntityViewModel> ExpandParent = null;
ExpandParent = l =>
{
l.IsExpanded = true;
if (l.Parent != null)
{
ExpandParent(l.Parent);
}
};
Action <TreeNodeEntityViewModel> CloseChildChild = l =>
{
if (l.Nodes == null)
{
return;
}
foreach (var item in l.Nodes)
{
if (item.Nodes == null)
{
return;
}
foreach (var item1 in item.Nodes)
{
item1.IsExpanded = false;
}
}
};
if (isCode)
{
var find = matchNodes.Find(l => l.Code == text.TrimEnd('0'));
if (find != null)
{
ExpandParent(find);
find.IsSelected = true;
find.IsExpanded = true;
CloseChildChild(find);
}
}
else
{
var collection = matchNodes.Take(500);
foreach (var item in matchNodes)
{
ExpandParent(item);
}
// Message：只有一项匹配展开
if (matchNodes.Count == 1)
{
matchNodes.First().IsSelected = true;
}
}
}
this.RefreshCount();
}