Question

如何做到C#Treeview加载节点选中状态

Answer 1

/// <summary>
/// 设置所有父节点的选中状态
/// </summary>
/// <param name="currNode"></param>
/// <param name="state"></param>
private void setParentNodeCheckedState(TreeNode currNode, bool state)
{
TreeNode parentNode = currNode.Parent;

parentNode.Checked = state;
if (currNode.Parent.Parent != null)
{
setParentNodeCheckedState(currNode.Parent, state);
}
}

/// <summary>
/// 设置所有子节点的选中状态
/// </summary>
/// <param name="currNode"></param>
/// <param name="state"></param>
private void setChildNodeCheckedState(TreeNode currNode, bool state)
{
TreeNodeCollection nodes = currNode.Nodes;
if (nodes.Count > 0)
foreach (TreeNode tn in nodes)
{
tn.Checked = state;
setChildNodeCheckedState(tn, state);
}