C# winform TreeView中關於checkbox選擇的完美類

public static class TreeViewCheck{    /// <summary>    /// 系列節點 Checked 屬性控制    /// </summary>    /// <param name="e"></param>    public static void CheckControl(TreeViewEventArgs e)    {        if (e.Action != TreeViewAction.Unknown)        {            if (e.Node != null && !Convert.IsDBNull(e.Node))            {                CheckParentNode(e.Node);                if (e.Node.Nodes.Count > 0)                {                    CheckAllChildNodes(e.Node, e.Node.Checked);                }            }        }    }    #region 私人方法    //改變所有子節點的狀態    private static void CheckAllChildNodes(TreeNode pn, bool IsChecked)    {        foreach (TreeNode tn in pn.Nodes)        {            tn.Checked = IsChecked;            if (tn.Nodes.Count > 0)            {                CheckAllChildNodes(tn, IsChecked);            }        }    }    //改變父節點的選中狀態，此處為所有子節點不選中時才取消父節點選中，可以根據需要修改    private static void CheckParentNode(TreeNode curNode)    {        bool bChecked = false;        if (curNode.Parent != null)        {            foreach (TreeNode node in curNode.Parent.Nodes)            {                if (node.Checked)                {                    bChecked = true;                    break;                }            }            if (bChecked)            {                curNode.Parent.Checked = true;                CheckParentNode(curNode.Parent);            }            else            {                curNode.Parent.Checked = false;                CheckParentNode(curNode.Parent);            }        }    }    #endregion}

調用方法：在treeview的AfterCheck事件中

private void treeView1_AfterCheck(object sender, TreeViewEventArgs e)

{

    TreeViewCheck.CheckControl(e)

}