HOW TO：將捷徑功能表附加至 TreeView 節點

Windows Form TreeView 控制項顯示節點的階層架構，顯示的方法如同 Windows 檔案總管左窗格中所顯示的檔案和資料夾。 設定好 ContextMenuStrip 屬性之後，當使用者在 TreeView 控制項上按一下滑鼠右鍵時，便可提供內容相關性的作業。 將 ContextMenuStrip 元件與個別 TreeNode 項目產生關聯之後，便可將捷徑功能表功能的自訂層級加入至 TreeView 控制項。

若要以程式設計方式將捷徑功能表與 TreeNode 產生關聯

1. 以適當的屬性設定產生 (Instantiate) TreeView 控制項，接著建立根 TreeNode，然後再加入子節點。

2. 產生 ContextMenuStrip 元件，然後再為每個想在執行階段使用的作業加入 ToolStripMenuItem。

3. 將適當的 TreeNode 的 ContextMenuStrip 屬性設為所建立的捷徑功能表。

4. 設定好這個屬性之後，當在節點上按一下滑鼠右鍵時將會出現捷徑功能表。

下列程式碼範例將建立基本的 TreeView 以及與 TreeView 的根 TreeNode 關聯的 ContextMenuStrip。 您將需要自訂功能表選擇，以符合正在開發的 TreeView。 此外，需要撰寫程式碼以處理這些功能表項目的 Click 事件。

' Declare the TreeView and ContextMenuStrip
Private menuTreeView As TreeView
Private docMenu As ContextMenuStrip


Public Sub InitializeMenuTreeView() 

    ' Create the TreeView.
    menuTreeView = New TreeView()
    menuTreeView.Size = New Size(200, 200)

    ' Create the root node.
    Dim docNode As New TreeNode("Documents")

    ' Add some additional nodes.
    docNode.Nodes.Add("phoneList.doc")
    docNode.Nodes.Add("resume.doc")

    ' Add the root nodes to the TreeView.
    menuTreeView.Nodes.Add(docNode)

    ' Create the ContextMenuStrip.
    docMenu = New ContextMenuStrip()

    'Create some menu items.
    Dim openLabel As New ToolStripMenuItem()
    openLabel.Text = "Open"
    Dim deleteLabel As New ToolStripMenuItem()
    deleteLabel.Text = "Delete"
    Dim renameLabel As New ToolStripMenuItem()
    renameLabel.Text = "Rename"

    'Add the menu items to the menu.
    docMenu.Items.AddRange(New ToolStripMenuItem() _
        {openLabel, deleteLabel, renameLabel})

    ' Set the ContextMenuStrip property to the ContextMenuStrip.
    docNode.ContextMenuStrip = docMenu

    ' Add the TreeView to the form.
    Me.Controls.Add(menuTreeView)

End Sub

    // Declare the TreeView and ContextMenuStrip
    private TreeView menuTreeView;
    private ContextMenuStrip docMenu;

    public void InitializeMenuTreeView()
    {
        // Create the TreeView.
        menuTreeView = new TreeView();
        menuTreeView.Size = new Size(200, 200);

        // Create the root node.
        TreeNode docNode = new TreeNode("Documents");

        // Add some additional nodes.
        docNode.Nodes.Add("phoneList.doc");
        docNode.Nodes.Add("resume.doc");

        // Add the root nodes to the TreeView.
        menuTreeView.Nodes.Add(docNode);

        // Create the ContextMenuStrip.
        docMenu = new ContextMenuStrip();

        //Create some menu items.
        ToolStripMenuItem openLabel = new ToolStripMenuItem();
        openLabel.Text = "Open";
        ToolStripMenuItem deleteLabel = new ToolStripMenuItem();
        deleteLabel.Text = "Delete";
        ToolStripMenuItem renameLabel = new ToolStripMenuItem();
        renameLabel.Text = "Rename";

        //Add the menu items to the menu.
        docMenu.Items.AddRange(new ToolStripMenuItem[]{openLabel, 
            deleteLabel, renameLabel});

        // Set the ContextMenuStrip property to the ContextMenuStrip.
        docNode.ContextMenuStrip = docMenu;

        // Add the TreeView to the form.
        this.Controls.Add(menuTreeView);
    }

    // Declare the TreeView and ContextMenuStrip
private:
    TreeView^ menuTreeView;
private:
    System::Windows::Forms::ContextMenuStrip^ docMenu;

public:
    void InitializeMenuTreeView()
    {
        // Create the TreeView.
        menuTreeView = gcnew TreeView();
        menuTreeView->Size = System::Drawing::Size(200, 200);

        // Create the root node.
        TreeNode^ docNode = gcnew TreeNode("Documents");

        // Add some additional nodes.
        docNode->Nodes->Add("phoneList.doc");
        docNode->Nodes->Add("resume.doc");

        // Add the root nodes to the TreeView.
        menuTreeView->Nodes->Add(docNode);

        // Create the ContextMenuStrip.
        docMenu = gcnew System::Windows::Forms::ContextMenuStrip();

        //Create some menu items.
        ToolStripMenuItem^ openLabel = gcnew ToolStripMenuItem();
        openLabel->Text = "Open";
        ToolStripMenuItem^ deleteLabel = gcnew ToolStripMenuItem();
        deleteLabel->Text = "Delete";
        ToolStripMenuItem^ renameLabel = gcnew ToolStripMenuItem();
        renameLabel->Text = "Rename";

        //Add the menu items to the menu.
        docMenu->Items->AddRange(gcnew array<ToolStripMenuItem^>{openLabel,
            deleteLabel, renameLabel});

        // Set the ContextMenuStrip property to the ContextMenuStrip.
        docNode->ContextMenuStrip = docMenu;

        // Add the TreeView to the form.
        this->Controls->Add(menuTreeView);
    }

請參閱

參考

ContextMenuStrip

其他資源

TreeView 控制項 (Windows Form)