ToolStripDropDownButton.ShowDropDownArrow Egenskap
Definition
Viktigt
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Hämtar eller anger ett värde som anger om en pil visas på ToolStripDropDownButton, vilket anger att ytterligare alternativ är tillgängliga i en listruta.
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
Egenskapsvärde
trueför att visa en pil på ToolStripDropDownButton; annars . false Standardvärdet är true.
Exempel
I följande kodexempel skapas och initieras en ToolStripDropDownButton kontroll. Egenskapen ShowDropDownArrow är inställd på false.
// 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