ToolStripDropDown クラス
アセンブリ: System.Windows.Forms (system.windows.forms.dll 内)

<ComVisibleAttribute(True)> _ <ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)> _ Public Class ToolStripDropDown Inherits ToolStrip
[ComVisibleAttribute(true)] [ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)] public class ToolStripDropDown : ToolStrip
[ComVisibleAttribute(true)] [ClassInterfaceAttribute(ClassInterfaceType::AutoDispatch)] public ref class ToolStripDropDown : public ToolStrip


ToolStripDropDown クラスと ToolStripDropDownButton クラスを使用して、3 つのボタンで構成される、フォームの前景色を変更するためのカラー ピッカーを作成するコード例を次に示します。
' Declare the drop-down button and the items it will contain. Friend WithEvents dropDownButton1 As ToolStripDropDownButton Friend WithEvents dropDown As ToolStripDropDown Friend WithEvents buttonRed As ToolStripButton Friend WithEvents buttonBlue As ToolStripButton Friend WithEvents buttonYellow As ToolStripButton Private Sub InitializeDropDownButton() dropDownButton1 = New ToolStripDropDownButton() dropDown = New ToolStripDropDown() dropDownButton1.Text = "A" ' Set the drop-down on the ToolStripDropDownButton. dropDownButton1.DropDown = dropDown ' Set the drop-down direction. dropDownButton1.DropDownDirection = ToolStripDropDownDirection.Left ' Do not show a drop-down arrow. dropDownButton1.ShowDropDownArrow = False ' Declare three buttons, set their foreground color and text, ' and add the buttons to the drop-down. buttonRed = New ToolStripButton() buttonRed.ForeColor = Color.Red buttonRed.Text = "A" buttonBlue = New ToolStripButton() buttonBlue.ForeColor = Color.Blue buttonBlue.Text = "A" buttonYellow = New ToolStripButton() buttonYellow.ForeColor = Color.Yellow buttonYellow.Text = "A" dropDown.Items.AddRange(New ToolStripItem() {buttonRed, buttonBlue, buttonYellow}) toolStrip1.Items.Add(dropDownButton1) End Sub ' Handle the buttons' click event by setting the foreground color of the ' form to the foreground color of the button that is clicked. Public Sub colorButtonsClick(ByVal sender As [Object], ByVal e As EventArgs) _ Handles buttonRed.Click, buttonBlue.Click, buttonYellow.Click Dim senderButton As ToolStripButton = CType(sender, ToolStripButton) Me.ForeColor = senderButton.ForeColor End Sub
// Declare the drop-down button and the items it will contain. internal ToolStripDropDownButton dropDownButton1; internal ToolStripDropDown dropDown; internal ToolStripButton buttonRed; internal ToolStripButton buttonBlue; internal ToolStripButton buttonYellow; private void InitializeDropDownButton() { dropDownButton1 = new ToolStripDropDownButton(); dropDown = new ToolStripDropDown(); dropDownButton1.Text = "A"; // Set the drop-down on the ToolStripDropDownButton. dropDownButton1.DropDown = dropDown; // Set the drop-down direction. dropDownButton1.DropDownDirection = ToolStripDropDownDirection.Left; // Do not show a drop-down arrow. dropDownButton1.ShowDropDownArrow = false; // Declare three buttons, set their foreground color and text, // and add the buttons to the drop-down. buttonRed = new ToolStripButton(); buttonRed.ForeColor = Color.Red; buttonRed.Text = "A"; buttonBlue = new ToolStripButton(); buttonBlue.ForeColor = Color.Blue; buttonBlue.Text = "A"; buttonYellow = new ToolStripButton(); buttonYellow.ForeColor = Color.Yellow; buttonYellow.Text = "A"; buttonBlue.Click += new EventHandler(colorButtonsClick); buttonRed.Click += new EventHandler(colorButtonsClick); buttonYellow.Click += new EventHandler(colorButtonsClick); dropDown.Items.AddRange(new ToolStripItem[] { buttonRed, buttonBlue, buttonYellow }); toolStrip1.Items.Add(dropDownButton1); } // Handle the buttons' click event by setting the foreground color of the // form to the foreground color of the button that is clicked. public void colorButtonsClick(object sender, EventArgs e) { ToolStripButton senderButton = (ToolStripButton)sender; this.ForeColor = senderButton.ForeColor; }

System.MarshalByRefObject
System.ComponentModel.Component
System.Windows.Forms.Control
System.Windows.Forms.ScrollableControl
System.Windows.Forms.ToolStrip
System.Windows.Forms.ToolStripDropDown
System.Windows.Forms.ToolStripDropDownMenu
System.Windows.Forms.ToolStripOverflow


Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
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ToolStripDropDown メンバ
System.Windows.Forms 名前空間
ToolStripDropDownButton
ToolStripDropDownItem
その他の技術情報
ToolStrip コントロール (Windows フォーム)
ToolStrip サンプル
- ToolStripDropDown クラスのページへのリンク