ToolStripDropDownButton.ShowDropDownArrow プロパティ

定義

名前空間:

System.Windows.Forms

アセンブリ:

System.Windows.Forms.dll

ドロップダウン リストにさらにオプションがあることを示す矢印を、ToolStripDropDownButton 上に表示するかどうかを示す値を取得または設定します。

public:
 property bool ShowDropDownArrow { bool get(); void set(bool value); };

public bool ShowDropDownArrow { get; set; }

member this.ShowDropDownArrow : bool with get, set

Public Property ShowDropDownArrow As Boolean

プロパティ値

Boolean

ToolStripDropDownButton 上に矢印を表示する場合は true。それ以外の場合は false。 既定値は、true です。

例

次のコード例では、コントロールを作成して初期化します ToolStripDropDownButton 。 ShowDropDownArrow プロパティが false に設定されています。

// Declare the drop-down button and the items it will contain.
ToolStripDropDownButton^ dropDownButton1;
ToolStripDropDown^ dropDown;
ToolStripButton^ buttonRed;
ToolStripButton^ buttonBlue;
ToolStripButton^ buttonYellow;

void InitializeDropDownButton()
{
    dropDownButton1 = gcnew ToolStripDropDownButton;
    dropDown = gcnew ToolStripDropDown;
    dropDownButton1->Text = "A";

    // Set the drop-down on the DropDownButton.
    dropDownButton1->DropDown = dropDown;

    // Declare three buttons, set their forecolor and text, 
    // and add the buttons to the drop-down.
    buttonRed = gcnew ToolStripButton;
    buttonRed->ForeColor = Color::Red;
    buttonRed->Text = "A";
    buttonBlue = gcnew ToolStripButton;
    buttonBlue->ForeColor = Color::Blue;
    buttonBlue->Text = "A";
    buttonYellow = gcnew ToolStripButton;
    buttonYellow->ForeColor = Color::Yellow;
    buttonYellow->Text = "A";
    buttonBlue->Click += gcnew EventHandler(this, 
        &Form1::colorButtonsClick);
    buttonRed->Click += gcnew EventHandler(this, 
        &Form1::colorButtonsClick);
    buttonYellow->Click += gcnew EventHandler(this, 
        &Form1::colorButtonsClick);
    array<ToolStripItem^>^ ToolStrips = 
        {buttonRed,buttonBlue,buttonYellow};
    dropDown->Items->AddRange(ToolStrips);
    toolStrip1->Items->Add(dropDownButton1);
}


// Handle the buttons' click event by setting the forecolor 
// of the form to the forecolor of the button that is clicked.
void colorButtonsClick(Object^ sender, EventArgs^ e)
{
    ToolStripButton^ senderButton = (ToolStripButton^) sender;
    this->ForeColor = senderButton->ForeColor;
}


//  internal:

// 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.
private void colorButtonsClick(object sender, EventArgs e)
{
    ToolStripButton senderButton = (ToolStripButton)sender;
    this.ForeColor = senderButton.ForeColor;
}

' 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