100分求助：treeView1删除节点后，其余节点如何自动上移？

Question

我有一个这样的TreeView:
               new----------------- 
                         1---------                        
                         2---------                       
                         3---------
                         4---------
              old----------------- 
                         5---------                        
                         6---------                       
                         7---------
如果把节点4删除后，TreeView变为如下：
              new----------------- 
                         1---------                        
                         2---------                       
                         3---------
              old----------------- 
                         4---------                        
                         5---------                       
                         6---------

Answer 1

这只能通过遍历重新设置Text属性来实现。

Answer 2

Eddie005(♂) №.零零伍 (♂) ,您好，我是说把4---------删除后，下面节点的名称减1重新命名！谢谢！

Answer 3

if (this.treeView1.SelectedNode != null)
            {
                if (this.treeView1.SelectedNode.Parent != null)
                {
                    if (this.treeView1.SelectedNode.Parent.Text == "new")
                    {
                        Object temp = this.treeView1.SelectedNode.Clone();
                        this.treeView1.SelectedNode.Remove();
                        foreach (TreeNode tn in treeView1.Nodes)
                        {
                            if(tn.Text == "old")
                                tn.Nodes.Insert(0,(TreeNode)temp);
                        }
                    }
                }
            }具体可能需要自行分析

Answer 4

删除代码如下：谢谢TreeNode parentNode=selectedNode.Parent;
if(parentNode==null)
{
this.treeView1.Nodes.Remove(selectedNode);
}
else
{
parentNode.Nodes.Remove(selectedNode);
if(parentNode.Nodes.Count==0)
{
parentNode.ImageIndex=1;
parentNode.SelectedImageIndex=1;
}
}
this.treeView1.Select();

Answer 5

把问题简单化：我有一个这样的TreeView:
               new----------------- 
                         1---------                        
                         2---------                       
                         3---------
                         4---------
                         5---------                        
                         6---------                       
                         7---------
把第5个子节点删除，要求变为：
               new----------------- 
                         1---------                        
                         2---------                       
                         3---------
                         4---------
                         5---------                        
                         6--------- 
如何实现啊？