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ScrollViewer.CanContentScroll Property

.NET Framework 3.5

Updated: July 2010

Gets or sets a value that indicates whether elements that support the IScrollInfo interface are allowed to scroll. This is a dependency property.

Namespace: System.Windows.Controls
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

Syntax

C++

JScript

public bool CanContentScroll { get; set; }

XAML Attribute Usage

<object CanContentScroll="bool" .../>

Property Value

Type: System.Boolean
true if the ScrollViewer scrolls in terms of logical units; false if the ScrollViewer scrolls in terms of physical units. The default is false.

Dependency Property Information

Identifier field	CanContentScrollProperty
Metadata properties set to true	None

Remarks

Content in a ScrollViewer can be scrolled in terms of physical units or logical units. Physical units are device independent pixels. Logical units are used for scrolling items within an ItemsControl. The default behavior of the ScrollViewer is to use physical units to scroll its content. However, in cases where the CanContentScroll is set to true, the content could use logical units to scroll. For example, ListBox, ListView, and other controls that inherit from ItemsControl use logical units to scroll. If CanContentScroll is true, the values of the ExtentHeight, ScrollableHeight, ViewportHeight, and VerticalOffset properties are number of items, instead of physical units.

If you require physical scrolling instead of logical scrolling, wrap the host Panel element in a ScrollViewer and set its CanContentScroll property to false. Physical scrolling is the default scroll behavior for most Panel elements.

Examples

The following example demonstrates how to set the CanContentScroll property by using code. For the complete sample, see ScrollChanged Event Sample.

private void scrollTrue(object sender, RoutedEventArgs e)
{
    sv1.CanContentScroll = true;
    sv1.Height = 600;
    myStackPanel.Visibility = Visibility.Visible;
    btn1.Visibility = Visibility.Collapsed;
}

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.5, 3.0

Reference

ScrollViewer Class

ScrollViewer Members

System.Windows.Controls Namespace

Other Resources

IScrollInfo Methods Sample

Change History

Date	History	Reason
July 2010	Clarified return value.	Customer feedback.
July 2009	Clarified remarks.	Content bug fix.
February 2009	Corrected default value.	Content bug fix.

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