ToolStripDropDown.DefaultDropDownDirection Proprietà
Definizione
Importante
Alcune informazioni sono relative alla release non definitiva del prodotto, che potrebbe subire modifiche significative prima della release definitiva. Microsoft non riconosce alcuna garanzia, espressa o implicita, in merito alle informazioni qui fornite.
Ottiene o imposta la direzione in cui è visualizzato l'oggetto ToolStripDropDown rispetto all'oggetto ToolStrip.
public:
virtual property System::Windows::Forms::ToolStripDropDownDirection DefaultDropDownDirection { System::Windows::Forms::ToolStripDropDownDirection get(); void set(System::Windows::Forms::ToolStripDropDownDirection value); };
public override System.Windows.Forms.ToolStripDropDownDirection DefaultDropDownDirection { get; set; }
member this.DefaultDropDownDirection : System.Windows.Forms.ToolStripDropDownDirection with get, set
Public Overrides Property DefaultDropDownDirection As ToolStripDropDownDirection
Valore della proprietà
Uno dei valori di ToolStripDropDownDirection.
Esempio
Nell'esempio di codice seguente viene illustrato come assegnare la DefaultDropDownDirection proprietà specificata da un'impostazione del pulsante di opzione.
// The following methods handle the CheckChanged event
// for all the radio buttons. Each method calls a utility
// method to set the ToolStripDropDownDirection appropriately.
private void radioButton1_CheckedChanged(object sender, EventArgs e)
{
this.HandleRadioButton(sender, ToolStripDropDownDirection.AboveLeft);
}
private void radioButton2_CheckedChanged(object sender, EventArgs e)
{
this.HandleRadioButton(sender, ToolStripDropDownDirection.AboveRight);
}
private void radioButton3_CheckedChanged(object sender, EventArgs e)
{
this.HandleRadioButton(sender, ToolStripDropDownDirection.BelowLeft);
}
private void radioButton4_CheckedChanged(object sender, EventArgs e)
{
this.HandleRadioButton(sender, ToolStripDropDownDirection.BelowRight);
}
private void radioButton5_CheckedChanged(object sender, EventArgs e)
{
this.HandleRadioButton(sender, ToolStripDropDownDirection.Default);
}
private void radioButton6_CheckedChanged(object sender, EventArgs e)
{
this.HandleRadioButton(sender, ToolStripDropDownDirection.Left);
}
private void radioButton7_CheckedChanged(object sender, EventArgs e)
{
this.HandleRadioButton(sender, ToolStripDropDownDirection.Right);
}
// This utility method sets the DefaultDropDownDirection property.
private void HandleRadioButton(object sender, ToolStripDropDownDirection direction)
{
RadioButton rb = sender as RadioButton;
if (rb != null)
{
if (rb.Checked)
{
this.dropDownDirection = direction;
this.contextMenuStrip1.DefaultDropDownDirection = direction;
}
}
}
' The following methods handle the CheckChanged event
' for all the radio buttons. Each method calls a utility
' method to set the ToolStripDropDownDirection appropriately.
Private Sub radioButton1_CheckedChanged(sender As Object, e As EventArgs) Handles radioButton1.CheckedChanged
Me.HandleRadioButton(sender, ToolStripDropDownDirection.AboveLeft)
End Sub
Private Sub radioButton2_CheckedChanged(sender As Object, e As EventArgs) Handles radioButton2.CheckedChanged
Me.HandleRadioButton(sender, ToolStripDropDownDirection.AboveRight)
End Sub
Private Sub radioButton3_CheckedChanged(sender As Object, e As EventArgs) Handles radioButton3.CheckedChanged
Me.HandleRadioButton(sender, ToolStripDropDownDirection.BelowLeft)
End Sub
Private Sub radioButton4_CheckedChanged(sender As Object, e As EventArgs) Handles radioButton4.CheckedChanged
Me.HandleRadioButton(sender, ToolStripDropDownDirection.BelowRight)
End Sub
Private Sub radioButton5_CheckedChanged(sender As Object, e As EventArgs) Handles radioButton5.CheckedChanged
Me.HandleRadioButton(sender, ToolStripDropDownDirection.Default)
End Sub
Private Sub radioButton6_CheckedChanged(sender As Object, e As EventArgs) Handles radioButton6.CheckedChanged
Me.HandleRadioButton(sender, ToolStripDropDownDirection.Left)
End Sub
Private Sub radioButton7_CheckedChanged(sender As Object, e As EventArgs) Handles radioButton7.CheckedChanged
Me.HandleRadioButton(sender, ToolStripDropDownDirection.Right)
End Sub
' This utility method sets the DefaultDropDownDirection property.
Private Sub HandleRadioButton(sender As Object, direction As ToolStripDropDownDirection)
Dim rb As RadioButton = CType(sender, RadioButton)
If rb IsNot Nothing Then
If rb.Checked Then
Me.dropDownDirection = direction
Me.contextMenuStrip1.DefaultDropDownDirection = direction
End If
End If
End Sub