private void WorksList_AfterCheck(object sender, TreeViewEventArgs e)
{
TreeNode node = e.Node;
bool check = node.Checked;
WorkTypeClass work = null;
if (node.Tag is WorkTypeClass)
{
work = node.Tag as WorkTypeClass;
}
if (work != null)
{
if (check)
{
if (!CheckedWorks.Exists(w => w.Equals(work)))
{
CheckedWorks.Add((WorkTypeClass)work.Clone());
}
}
else
{
CheckedWorks.Remove(CheckedWorks.Find(x => x.FullEquals(work)));
}
if (check)
{
if (!CheckedCats.Contains(work.category))
{
CheckedCats.Add(work.category);
}
}
else
{
CheckedCats.Remove(work.category);
}
CheckedNodesChanged?.Invoke(node, new EventArgs());
}
}
public async Task OnCheckBoxChange()
{
var totalCheckDataItemList = new List <TModel>();
// 查找每个被checked 的父级
Func <TreeNode <TModel>, List <TModel> > GetAllHalfCheckedParent = null;
GetAllHalfCheckedParent = node =>
{
var result = new List <TModel>();
var parentNode = node.ParentNode;
if (parentNode != null && parentNode.Checked != true)
{
result.Add(parentNode.DataItem);
if (parentNode.ParentNode != null)
{
var d = GetAllHalfCheckedParent(parentNode);
result.AddRange(d);
}
}
return(result);
};
var data = tree.CheckedNodes.AsQueryable().Select(node => (TModel)node.DataItem).Distinct().ToList();
Console.WriteLine(tree.CheckedNodes.Count);
tree.CheckedNodes.ForEach(item =>
{
var parents = GetAllHalfCheckedParent(item);
data.AddRange(parents);
}
);
data = data.Select(item => JsonConvert.DeserializeObject <TModel>(JsonConvert.SerializeObject(item))).ToList();
data.ForEach(item => item.Children = null);
await CheckedNodesChanged.InvokeAsync(data);
}
