ToolStripDropDownButton 建構函式

參考

定義

命名空間:: System.Windows.Forms

組件:: System.Windows.Forms.dll

重要

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初始化 ToolStripDropDownButton 類別的新執行個體。

多載

ToolStripDropDownButton()	初始化 ToolStripDropDownButton 類別的新執行個體。
ToolStripDropDownButton(Image)	初始化 ToolStripDropDownButton 類別的新執行個體，以便顯示指定的影像。
ToolStripDropDownButton(String)	初始化 ToolStripDropDownButton 類別的新執行個體，以便顯示指定的文字。
ToolStripDropDownButton(String, Image)	初始化 ToolStripDropDownButton 類別的新執行個體，以便顯示指定的文字和影像。
ToolStripDropDownButton(String, Image, EventHandler)	初始化 ToolStripDropDownButton 類別的新執行個體，以便顯示指定的文字和影像，並引發 `Click` 事件。
ToolStripDropDownButton(String, Image, ToolStripItem[])	初始化 ToolStripDropDownButton 類別的新執行個體。
ToolStripDropDownButton(String, Image, EventHandler, String)	初始化含有指定名稱之 ToolStripDropDownButton 類別的新執行個體，以便顯示指定的文字和影像，並引發 `Click` 事件。

ToolStripDropDownButton()

初始化 ToolStripDropDownButton 類別的新執行個體。

public:
 ToolStripDropDownButton();

public ToolStripDropDownButton ();

Public Sub New ()

範例

下列程式碼範例會建立和初始化 ToolStripDropDownButton 控制項。

// 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

適用於

ToolStripDropDownButton(Image)

初始化 ToolStripDropDownButton 類別的新執行個體，以便顯示指定的影像。

public:
 ToolStripDropDownButton(System::Drawing::Image ^ image);

public ToolStripDropDownButton (System.Drawing.Image image);

public ToolStripDropDownButton (System.Drawing.Image? image);

new System.Windows.Forms.ToolStripDropDownButton : System.Drawing.Image -> System.Windows.Forms.ToolStripDropDownButton

Public Sub New (image As Image)

參數

image: Image

要顯示在 Image 上的 ToolStripDropDownButton。

適用於

ToolStripDropDownButton(String)

初始化 ToolStripDropDownButton 類別的新執行個體，以便顯示指定的文字。

public:
 ToolStripDropDownButton(System::String ^ text);

public ToolStripDropDownButton (string text);

public ToolStripDropDownButton (string? text);

new System.Windows.Forms.ToolStripDropDownButton : string -> System.Windows.Forms.ToolStripDropDownButton

Public Sub New (text As String)

參數

text: String

要顯示於 ToolStripDropDownButton 上的文字。

適用於

ToolStripDropDownButton(String, Image)

初始化 ToolStripDropDownButton 類別的新執行個體，以便顯示指定的文字和影像。

public:
 ToolStripDropDownButton(System::String ^ text, System::Drawing::Image ^ image);

public ToolStripDropDownButton (string text, System.Drawing.Image image);

public ToolStripDropDownButton (string? text, System.Drawing.Image? image);

new System.Windows.Forms.ToolStripDropDownButton : string * System.Drawing.Image -> System.Windows.Forms.ToolStripDropDownButton

Public Sub New (text As String, image As Image)

參數

text: String

要顯示於 ToolStripDropDownButton 上的文字。

image: Image

要顯示在 Image 上的 ToolStripDropDownButton。

適用於

ToolStripDropDownButton(String, Image, EventHandler)

初始化 ToolStripDropDownButton 類別的新執行個體，以便顯示指定的文字和影像，並引發 Click 事件。

public:
 ToolStripDropDownButton(System::String ^ text, System::Drawing::Image ^ image, EventHandler ^ onClick);

public ToolStripDropDownButton (string text, System.Drawing.Image image, EventHandler onClick);

public ToolStripDropDownButton (string? text, System.Drawing.Image? image, EventHandler? onClick);

new System.Windows.Forms.ToolStripDropDownButton : string * System.Drawing.Image * EventHandler -> System.Windows.Forms.ToolStripDropDownButton

Public Sub New (text As String, image As Image, onClick As EventHandler)

參數

text: String

要顯示於 ToolStripDropDownButton 上的文字。

image: Image

要顯示在 Image 上的 ToolStripDropDownButton。

onClick: EventHandler

Click 事件的事件處理常式。

適用於

ToolStripDropDownButton(String, Image, ToolStripItem[])

初始化 ToolStripDropDownButton 類別的新執行個體。

public:
 ToolStripDropDownButton(System::String ^ text, System::Drawing::Image ^ image, ... cli::array <System::Windows::Forms::ToolStripItem ^> ^ dropDownItems);

public ToolStripDropDownButton (string text, System.Drawing.Image image, params System.Windows.Forms.ToolStripItem[] dropDownItems);

public ToolStripDropDownButton (string? text, System.Drawing.Image? image, params System.Windows.Forms.ToolStripItem[]? dropDownItems);

new System.Windows.Forms.ToolStripDropDownButton : string * System.Drawing.Image * System.Windows.Forms.ToolStripItem[] -> System.Windows.Forms.ToolStripDropDownButton

Public Sub New (text As String, image As Image, ParamArray dropDownItems As ToolStripItem())

參數

text: String

要顯示於 ToolStripDropDownButton 上的文字。

image: Image

要顯示在 Image 上的 ToolStripDropDownButton。

dropDownItems: ToolStripItem[]

ToolStripItem 型別的陣列，其中含有 ToolStripDropDownButton 的項目。

適用於

ToolStripDropDownButton(String, Image, EventHandler, String)

初始化含有指定名稱之 ToolStripDropDownButton 類別的新執行個體，以便顯示指定的文字和影像，並引發 Click 事件。

public:
 ToolStripDropDownButton(System::String ^ text, System::Drawing::Image ^ image, EventHandler ^ onClick, System::String ^ name);

public ToolStripDropDownButton (string text, System.Drawing.Image image, EventHandler onClick, string name);

public ToolStripDropDownButton (string? text, System.Drawing.Image? image, EventHandler? onClick, string? name);

new System.Windows.Forms.ToolStripDropDownButton : string * System.Drawing.Image * EventHandler * string -> System.Windows.Forms.ToolStripDropDownButton

Public Sub New (text As String, image As Image, onClick As EventHandler, name As String)

參數

text: String

要顯示於 ToolStripDropDownButton 上的文字。

image: Image

要顯示在 Image 上的 ToolStripDropDownButton。

onClick: EventHandler

Click 事件的事件處理常式。

name: String

ToolStripDropDownButton 的名稱。

適用於

共用方式為

ToolStripDropDownButton 建構函式

定義

多載

ToolStripDropDownButton()

範例

適用於

ToolStripDropDownButton(Image)

參數

適用於

ToolStripDropDownButton(String)

參數

適用於

ToolStripDropDownButton(String, Image)

參數

適用於

ToolStripDropDownButton(String, Image, EventHandler)

參數

適用於

ToolStripDropDownButton(String, Image, ToolStripItem[])

參數

適用於

ToolStripDropDownButton(String, Image, EventHandler, String)

參數

適用於

其他資源