C# TreeView 遍历

引言

C# 中的 TreeView 是一个很棒的控件。TreeView 可用于构建分层菜单。我参与了一个项目，在该项目中我需要大量使用 TreeView，因此我编写了一些代码来动态构建 TreeView（数据库驱动）。在这里，我展示 TreeView 遍历操作。

这是填充后的 TreeView 的快照。

下载源代码

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

这是代码

class TVIEW

//1- Create a TreeView
TreeView treeview = new TreeView();
 
//2- Populate the TreeView with Data
//populateTreeView();
//3- Now You can visit each and every node of this treeview whenever you require
TVIEW t1 = new TVIEW();
t1.TraverseTreeView(treeview);

 

private void TraverseTreeView(TreeView tview)


{
//Create a TreeNode to hold the Parent Node
TreeNode temp = new TreeNode();

//Loop through the Parent Nodes
for(int k=0; k<tview.Nodes.Count; k++) 
{
//Store the Parent Node in temp
temp = tview.Nodes[k];

//Display the Text of the Parent Node i.e. temp
MessageBox.Show(temp.Text);

//Now Loop through each of the child nodes in this parent node i.e.temp
for (int i = 0; i < temp.Nodes.Count; i++)
visitChildNodes(temp.Nodes[i]); //send every child to the function for further traversal
} 

 

私有的 voidvisitChildNodes(TreeNode node)

{
//Display the Text of the node
MessageBox.Show(node.Text); 
//Loop Through this node and its childs recursively
for (int j = 0; j < node.Nodes.Count; j++)
visitChildNodes(node.Nodes[j]);
}