ScrollBarVisibility Enumerazione

Definizione

Specifica la visibilità di un ScrollBar per il contenuto scorrevole.Specifies the visibility of a ScrollBar for scrollable content.

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

Campi

Auto 1

ScrollBar appare e la dimensione di ScrollViewer viene applicata al contenuto quando il riquadro non può visualizzarlo tutto.A ScrollBar appears and the dimension of the ScrollViewer is applied to the content when the viewport cannot display all of the content. Per ScrollBarorizzontale, l'ampiezza del contenuto è impostata su ViewportWidth di ScrollViewer.For a horizontal ScrollBar, the width of the content is set to the ViewportWidth of the ScrollViewer. Per ScrollBarverticale, l'altezza del contenuto è impostata su ViewportHeight di ScrollViewer.For a vertical ScrollBar, the height of the content is set to the ViewportHeight of the ScrollViewer.

Disabled 0

ScrollBar non appare anche quando il riquadro non può visualizzare tutto il contenuto.A ScrollBar does not appear even when the viewport cannot display all of the content. La dimensione del contenuto è impostata sulla corrispondente dimensione del padre ScrollViewer.The dimension of the content is set to the corresponding dimension of the ScrollViewer parent. Per ScrollBarorizzontale, l'ampiezza del contenuto è impostata su ViewportWidth di ScrollViewer.For a horizontal ScrollBar, the width of the content is set to the ViewportWidth of the ScrollViewer. Per ScrollBarverticale, l'altezza del contenuto è impostata su ViewportHeight di ScrollViewer.For a vertical ScrollBar, the height of the content is set to the ViewportHeight of the ScrollViewer.

Hidden 2

ScrollBar non appare anche quando il riquadro non può visualizzare tutto il contenuto.A ScrollBar does not appear even when the viewport cannot display all of the content. La dimensione di ScrollViewer non è applicata al contenuto.The dimension of the ScrollViewer is not applied to the content.

Visible 3

ScrollBar viene sempre visualizzata.A ScrollBar always appears. La dimensione di ScrollViewer è applicata al contenuto.The dimension of the ScrollViewer is applied to the content. Per ScrollBarorizzontale, l'ampiezza del contenuto è impostata su ViewportWidth di ScrollViewer.For a horizontal ScrollBar, the width of the content is set to the ViewportWidth of the ScrollViewer. Per ScrollBarverticale, l'altezza del contenuto è impostata su ViewportHeight di ScrollViewer.For a vertical ScrollBar, the height of the content is set to the ViewportHeight of the ScrollViewer.

Esempi

Nell'esempio seguente viene illustrato come utilizzare i valori dei membri di questa enumerazione per impostare HorizontalScrollBarVisibility la proprietà ScrollViewer del controllo.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>

Commenti

Usare questa enumerazione per impostare i HorizontalScrollBarVisibility valori VerticalScrollBarVisibility delle proprietà e del ScrollViewer controllo.Use this enumeration to set the HorizontalScrollBarVisibility and VerticalScrollBarVisibility property values of the ScrollViewer control.

I valori dei membri di questa enumerazione ScrollBar specificano la visibilità in una direzione specificata.The member values of this enumeration specify ScrollBar visibility in a given direction. Questi valori dei membri specificano inoltre se ScrollViewer la dimensione corrispondente viene applicata al contenuto incluso.These member values also specify whether the corresponding ScrollViewer dimension is applied to its enclosed content.

Quando si applica il ViewportWidth o ViewportHeight al ScrollViewer contenuto, si impostano le dimensioni del viewport per il contenuto.When you apply the ViewportWidth or ViewportHeight to ScrollViewer content, you set the viewport size for the content.

Si applica a

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