中文字幕在线中字日韩_ 剛學(xué)習C#：如何動(dòng)態(tài)添加TreeView子節點(diǎn)，有點(diǎn)伸手黨了。。。

問(wèn)題：現有一有序的string類(lèi)型數據，例如 aaa bbb ccc ddd eee......
某一treeview已存在根節點(diǎn)，需要將上面的aaa bbb ccc ddd eee......按順序添加為子節點(diǎn)（不是同一級的，bbb是aaa的子節點(diǎn)、ccc是bbb的子節點(diǎn)，以此類(lèi)推）

我試了試：string數據的個(gè)數是可以確定的，添加采用：

C# code?

TreeNode tn = new TreeNode();

tn.Text = "string的名字";

根節點(diǎn).Nodes.Add(tn); //可實(shí)現添加第二級

但是再往后就不知道如何添加后面幾級的子節點(diǎn)了，因為不知道如何獲取前一級的子節點(diǎn)，也就是XXX.Nodes.Add(新添加的子節點(diǎn)) 這里的XXX不知道如何表示？而且如果采用循環(huán)的話(huà)，每次都要用

C# code?

1	`TreeNode xx =` `new` `TreeNode()` `//創(chuàng )建新的TreeNode,這樣會(huì )重復吧。。。`

有個(gè)treeView.Nodes[0].Nodes[0].Nodes[0]......可以按順序獲取特定子節點(diǎn)，但是這樣該取多少次呢？
我C#的確是剛接觸，不知道問(wèn)題陳述的清不清楚。求教各位前輩，不知道有什么好思路？謝謝！

#4 得分：0 回復于： 2013-03-26 22:53:43

我也是新人，還沒(méi)學(xué)到這呢。不知道能不能幫上你！
我是這么想的，VS編譯器上拖TreeView控件后，屬性里可以手動(dòng)添加Nodes集合。
我先按你的要求，添加了3個(gè)子節點(diǎn)。然后看下Designer.cs里編譯器為我們自動(dòng)添加的代碼。

C# code?

/// <summary>

/// 設計器支持所需的方法 - 不要

/// 使用代碼編輯器修改此方法的內容。

/// </summary>

private void InitializeComponent()

{

System.Windows.Forms.TreeNode treeNode1 = new System.Windows.Forms.TreeNode("節點(diǎn)2");

System.Windows.Forms.TreeNode treeNode2 = new System.Windows.Forms.TreeNode("節點(diǎn)1", new System.Windows.Forms.TreeNode[] {

treeNode1});

System.Windows.Forms.TreeNode treeNode3 = new System.Windows.Forms.TreeNode("節點(diǎn)0", new System.Windows.Forms.TreeNode[] {

treeNode2});

this.panel1 = new System.Windows.Forms.Panel();

this.treeView1 = new System.Windows.Forms.TreeView();

this.panel1.SuspendLayout();

this.SuspendLayout();

//

// panel1

//

this.panel1.Controls.Add(this.treeView1);

this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;

this.panel1.Location = new System.Drawing.Point(0, 0);

this.panel1.Name = "panel1";

this.panel1.Size = new System.Drawing.Size(282, 255);

this.panel1.TabIndex = 0;

//

// treeView1

//

this.treeView1.Location = new System.Drawing.Point(12, 12);

this.treeView1.Name = "treeView1";

treeNode1.Name = "節點(diǎn)2";

treeNode1.Text = "節點(diǎn)2";

treeNode2.Name = "節點(diǎn)1";

treeNode2.Text = "節點(diǎn)1";

treeNode3.Name = "節點(diǎn)0";

treeNode3.Text = "節點(diǎn)0";

this.treeView1.Nodes.AddRange(new System.Windows.Forms.TreeNode[] {

treeNode3});

this.treeView1.Size = new System.Drawing.Size(258, 231);

this.treeView1.TabIndex = 0;

優(yōu)化下代碼：

C# code?

TreeNode treeNode1 = new TreeNode("節點(diǎn)2");

TreeNode treeNode2 = new TreeNode("節點(diǎn)1", new TreeNode[] {treeNode1});

TreeNode treeNode3 = new TreeNode("節點(diǎn)0", new TreeNode[] {treeNode2});

TreeView treeView1 = new TreeView();

treeView1.Location = new System.Drawing.Point(12, 12);

treeView1.Name = "treeView1";

treeNode1.Name = "節點(diǎn)2";

treeNode1.Text = "節點(diǎn)2";

treeNode2.Name = "節點(diǎn)1";

treeNode2.Text = "節點(diǎn)1";

treeNode3.Name = "節點(diǎn)0";

treeNode3.Text = "節點(diǎn)0";

treeView1.Nodes.AddRange(new TreeNode[] {treeNode3});

treeView1.Size = new System.Drawing.Size(258, 231);

treeView1.Parent = panel1;

遞歸不太熟，那就for循環(huán)吧。初學(xué)者代碼一大坨，呵呵！

C# code?

private void Form1_Load(object sender, EventArgs e)

{

string[] strs = { "aaa", "bbb", "ccc", "ddd", "fff" };

TreeView treeView1 = new TreeView();

treeView1.Name = "treeView1";

treeView1.Location = new System.Drawing.Point(12, 12);

treeView1.Size = new System.Drawing.Size(258, 231);

treeView1.Parent = panel1;

TreeNode[] treenodes = new TreeNode[strs.Length];

treenodes[0] = new TreeNode();

treenodes[0].Name = strs[strs.Length - 1];

treenodes[0].Text = strs[strs.Length - 1];

for (int i=1; i<strs.Length; i++)

{

treenodes[i] = new TreeNode();

treenodes[i].Name = strs[strs.Length - i - 1];

treenodes[i].Text = strs[strs.Length - i - 1];

treenodes[i].Nodes.Add(treenodes[i - 1]);

}

treeView1.Nodes.AddRange(new TreeNode[] { treenodes[strs.Length - 1] });

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