ToolStripDropDownItem.HasDropDownItems Propriedade

Definição

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Obtém um valor que indica se o ToolStripDropDownItem tem controles ToolStripDropDown associados a ele.

public:
 virtual property bool HasDropDownItems { bool get(); };

[System.ComponentModel.Browsable(false)]
public virtual bool HasDropDownItems { get; }

[<System.ComponentModel.Browsable(false)>]
member this.HasDropDownItems : bool

Public Overridable ReadOnly Property HasDropDownItems As Boolean

Valor da propriedade

Boolean

true se houver ToolStripDropDownItem ToolStripDropDown controles; caso contrário, false.

Atributos

BrowsableAttribute

Exemplos

O exemplo de código a seguir demonstra como consultar a HasDropDownItems propriedade para mostrar condicionalmente um ToolStripDropDownItem controle. Este exemplo de código faz parte de um exemplo maior fornecido para a ToolStripDropDownItem classe.

// This method shows the drop-down for the first item
// in the form's ToolStrip.
private void showButton_Click(object sender, EventArgs e)
{
    ToolStripDropDownItem item = this.toolStrip1.Items[0] as ToolStripDropDownItem;

    if (item.HasDropDownItems)
    {
        item.ShowDropDown();
    }
}

' This method shows the drop-down for the first item
' in the form's ToolStrip.
 Private Sub showButton_Click( _
 ByVal sender As Object, _
 ByVal e As EventArgs) _
 Handles showButton.Click

     Dim item As ToolStripDropDownItem = CType(Me.toolStrip1.Items(0), ToolStripDropDownItem)

     If item.HasDropDownItems Then
         item.ShowDropDown()
     End If

 End Sub