ScrollBarVisibility Enumeração

Definição

Especifica a visibilidade de uma ScrollBar para conteúdo rolável.Specifies the visibility of a ScrollBar for scrollable content.

public enum class ScrollBarVisibility
public enum ScrollBarVisibility
type ScrollBarVisibility = 
Public Enum ScrollBarVisibility
Herança
ScrollBarVisibility

Campos

Auto 1

Uma ScrollBar é exibida e a dimensão do ScrollViewer é aplicada ao conteúdo quando o visor não pode exibir todo o conteúdo.A ScrollBar appears and the dimension of the ScrollViewer is applied to the content when the viewport cannot display all of the content. Para uma ScrollBar horizontal, a largura do conteúdo é definida como a ViewportWidth do ScrollViewer.For a horizontal ScrollBar, the width of the content is set to the ViewportWidth of the ScrollViewer. Para uma ScrollBar vertical, a altura do conteúdo é definida como a ViewportHeight do ScrollViewer.For a vertical ScrollBar, the height of the content is set to the ViewportHeight of the ScrollViewer.

Disabled 0

Uma ScrollBar não é exibida, mesmo quando o visor não pode exibir todo o conteúdo.A ScrollBar does not appear even when the viewport cannot display all of the content. A dimensão do conteúdo é definida para a dimensão correspondente do pai do ScrollViewer.The dimension of the content is set to the corresponding dimension of the ScrollViewer parent. Para uma ScrollBar horizontal, a largura do conteúdo é definida como a ViewportWidth do ScrollViewer.For a horizontal ScrollBar, the width of the content is set to the ViewportWidth of the ScrollViewer. Para uma ScrollBar vertical, a altura do conteúdo é definida como a ViewportHeight do ScrollViewer.For a vertical ScrollBar, the height of the content is set to the ViewportHeight of the ScrollViewer.

Hidden 2

Uma ScrollBar não é exibida, mesmo quando o visor não pode exibir todo o conteúdo.A ScrollBar does not appear even when the viewport cannot display all of the content. A dimensão do ScrollViewer não é aplicada ao conteúdo.The dimension of the ScrollViewer is not applied to the content.

Visible 3

Uma ScrollBar sempre aparece.A ScrollBar always appears. A dimensão do ScrollViewer é aplicada ao conteúdo.The dimension of the ScrollViewer is applied to the content. Para uma ScrollBar horizontal, a largura do conteúdo é definida como a ViewportWidth do ScrollViewer.For a horizontal ScrollBar, the width of the content is set to the ViewportWidth of the ScrollViewer. Para uma ScrollBar vertical, a altura do conteúdo é definida como a ViewportHeight do ScrollViewer.For a vertical ScrollBar, the height of the content is set to the ViewportHeight of the ScrollViewer.

Exemplos

O exemplo a seguir mostra como usar os valores de membro dessa enumeração para definir a HorizontalScrollBarVisibility propriedade ScrollViewer do controle.The following example shows how to use the member values of this enumeration to set the HorizontalScrollBarVisibility property of the ScrollViewer control.


// Create the application's main window
mainWindow = gcnew System::Windows::Window();
mainWindow->Title = "ScrollViewer Sample";

// Define a ScrollViewer
myScrollViewer = gcnew ScrollViewer();
myScrollViewer->HorizontalScrollBarVisibility = ScrollBarVisibility::Auto;

// Add Layout control
myStackPanel = gcnew StackPanel();
myStackPanel->HorizontalAlignment = HorizontalAlignment::Left;
myStackPanel->VerticalAlignment = VerticalAlignment::Top;

TextBlock^ myTextBlock = gcnew TextBlock();
myTextBlock->TextWrapping = TextWrapping::Wrap;
myTextBlock->Margin = System::Windows::Thickness(0, 0, 0, 20);
myTextBlock->Text = "Scrolling is enabled when it is necessary. Resize the Window, making it larger and smaller.";

Rectangle^ myRectangle = gcnew Rectangle();
myRectangle->Fill = Brushes::Red;
myRectangle->Width = 500;
myRectangle->Height = 500;

// Add child elements to the parent StackPanel
myStackPanel->Children->Add(myTextBlock);
myStackPanel->Children->Add(myRectangle);

// Add the StackPanel as the lone Child of the Border
myScrollViewer->Content = myStackPanel;

// Add the Border as the Content of the Parent Window Object
mainWindow->Content = myScrollViewer;
mainWindow->Show();


// Create the application's main window
mainWindow = new Window ();
mainWindow.Title = "ScrollViewer Sample";

// Define a ScrollViewer
myScrollViewer = new ScrollViewer();
myScrollViewer.HorizontalScrollBarVisibility = ScrollBarVisibility.Auto;

// Add Layout control
myStackPanel = new StackPanel();
myStackPanel.HorizontalAlignment = HorizontalAlignment.Left;
myStackPanel.VerticalAlignment = VerticalAlignment.Top;

TextBlock myTextBlock = new TextBlock();
myTextBlock.TextWrapping = TextWrapping.Wrap;
myTextBlock.Margin = new Thickness(0, 0, 0, 20);
myTextBlock.Text = "Scrolling is enabled when it is necessary. Resize the Window, making it larger and smaller.";

Rectangle myRectangle = new Rectangle();
myRectangle.Fill = Brushes.Red;
myRectangle.Width = 500;
myRectangle.Height = 500;

// Add child elements to the parent StackPanel
myStackPanel.Children.Add(myTextBlock);
myStackPanel.Children.Add(myRectangle);
            
// Add the StackPanel as the lone Child of the Border
myScrollViewer.Content = myStackPanel;

// Add the Border as the Content of the Parent Window Object
mainWindow.Content = myScrollViewer;
mainWindow.Show ();


'Define a ScrollViewer.
Dim myScrollViewer As New ScrollViewer
myScrollViewer.HorizontalScrollBarVisibility = ScrollBarVisibility.Auto

'Add Layout control.
Dim myStackPanel As New StackPanel
myStackPanel.HorizontalAlignment = System.Windows.HorizontalAlignment.Left
myStackPanel.VerticalAlignment = System.Windows.VerticalAlignment.Top

Dim myTextBlock As New TextBlock
myTextBlock.TextWrapping = TextWrapping.Wrap
myTextBlock.Margin = New Thickness(0, 0, 0, 20)
myTextBlock.Text = "Scrolling is enabled when it is necessary. Resize the Window, making it larger and smaller."

Dim myRectangle As New Rectangle
myRectangle.Fill = Brushes.Red
myRectangle.Width = 500
myRectangle.Height = 500

'Add child elements to the parent StackPanel.
myStackPanel.Children.Add(myTextBlock)
myStackPanel.Children.Add(myRectangle)

'Add the StackPanel as the lone Child of the Border
myScrollViewer.Content = myStackPanel
Me.Content = myScrollViewer
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      WindowTitle="ScrollViewer Sample">
  <ScrollViewer HorizontalScrollBarVisibility="Auto">
    <StackPanel VerticalAlignment="Top" HorizontalAlignment="Left">
      <TextBlock TextWrapping="Wrap" Margin="0,0,0,20">Scrolling is enabled when it is necessary. 
      Resize the window, making it larger and smaller.</TextBlock>
      <Rectangle Fill="Red" Width="500" Height="500"></Rectangle>
    </StackPanel>
  </ScrollViewer>
</Page>

Comentários

Use essa enumeração para definir os HorizontalScrollBarVisibility valores VerticalScrollBarVisibility de propriedade e do ScrollViewer controle.Use this enumeration to set the HorizontalScrollBarVisibility and VerticalScrollBarVisibility property values of the ScrollViewer control.

Os valores de membro dessa enumeração especificam ScrollBar a visibilidade em uma determinada direção.The member values of this enumeration specify ScrollBar visibility in a given direction. Esses valores de membro também especificam se ScrollViewer a dimensão correspondente é aplicada ao conteúdo incluído.These member values also specify whether the corresponding ScrollViewer dimension is applied to its enclosed content.

Ao aplicar o ViewportWidth conteúdo ou ViewportHeight ao ScrollViewer , você define o tamanho do visor para o conteúdo.When you apply the ViewportWidth or ViewportHeight to ScrollViewer content, you set the viewport size for the content.

Aplica-se a

Veja também