C#TreeView上下级Checked属性关联处理

private void TreeNodeChild(TreeNode ATreeNode, bool AChecked) // 同步子节点

{

if (ATreeNode == null) return;

ATreeNode.Checked = AChecked;

foreach (TreeNode vTreeNode in ATreeNode.Nodes)

TreeNodeChild(vTreeNode, AChecked);

}

private void TreeNodeCheck(TreeNode ATreeNode, bool AChecked)

{

if (ATreeNode == null) return;

ATreeNode.Checked = AChecked;

if (AChecked) // 如果选中本节点这就是选中全部上级节点

{

TreeNodeCheck(ATreeNode.Parent, AChecked);

}

else

{

if (ATreeNode.Parent != null && ATreeNode.Parent.Checked)

{

foreach(TreeNode vTreeNode in ATreeNode.Parent.Nodes)

if (vTreeNode.Checked) return;

TreeNodeCheck(ATreeNode.Parent, AChecked); // 判断是否所有的兄弟节点Checked都为false

}

}

}

private bool updateTreeNode= false;

private void treeView1_AfterCheck(object sender, TreeViewEventArgs e)

{

if (updateTreeNode) return; // 如果在刷新中

updateTreeNode = true;

try

{

TreeNodeChild(e.Node, e.Node.Checked); // 同步子节点

TreeNodeCheck(e.Node, e.Node.Checked);

}

finally

{

updateTreeNode = false;

}

}