如何通过一个TreeView控件的所有节点进行迭代。 C＃ [英] How to Iterate through all nodes of a treeView Control. C#

问题描述

我选择我有一个格式

如果控件是所有控件树视图，我会遍历所有节点他们有

if controls are Treeviews, I'll iterate all nodes they have

我需要的是这样的：
（它是我的代码）

I need something like: (And it is my code)

foreach (Control c in PanelSM.Controls)
{
    if (c is TreeView) 
    {    
        TreeNodeCollection myNodes = c.Nodes;//<<<<< Here is a mistake
        foreach (TreeNode n in myNodes)
        {
            String text = rm.GetString(n.Name);
            //And more things
            //...
            //...
            //...
       }
    }
    //...
}

任何想法？

感谢您

推荐答案

您的错误是 C 实际上是类型的变量控制，它不具有的节点的成员。你会需要它强制转换为一个 TreeView控件键入

Your mistake is that c is actually a variable of type Control, which does not have a Nodes member. You will need it to cast it as a TreeView type.

您可以执行这两种方法：

You can do either of these two approaches:

if (c is TreeView) 
{
    TreeNodeCollection myNodes = ((TreeView) c).Nodes; // <<--- Note the cast
    ...
}

或

TreeView tv = c as TreeView;
if (tv != null)
{
        TreeNodeCollection myNodes = tv.Nodes;
        ...
}

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