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WrapPanel::ItemHeight Property

Gets or sets a value that specifies the height of all items that are contained within a WrapPanel.

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

property double ItemHeight {
	double get ();
	void set (double value);
<object ItemHeight="double"/>
- or -
<object ItemHeight="qualifiedDouble"/>
- or -
<object ItemHeight="Auto"/>

XAML Values



String representation of a Double value equal to or greater than 0.0034 but equal to or less than 160000. An unqualified value is measured in device independent pixels. Strings need not explicitly include decimal points.


A double value as described above, (excepting Auto) followed by one of the following unit specifiers: px, in, cm, pt.

px (default) is device-independent units (1/96th inch per unit)

in is inches; 1in==96px

cm is centimeters; 1cm==(96/2.54) px

pt is points; 1pt==(96/72) px


Causes the line height is determined automatically from the current font characteristics. Equivalent to a property value of NaN.

Property Value

Type: System::Double
The Double that represents the uniform height of all items that are contained within the WrapPanel. The default value is NaN.

Identifier field


Metadata properties set to true


If this property is not set (or if it is set to Auto in XAML or to Double.NaN in code), the size of the layout partition is equal to the desired size of the child element.

A child element of a WrapPanel may have its height property set explicitly. ItemHeight specifies the size of the layout partition that is reserved by the WrapPanel for the child element. As a result, ItemHeight takes precedence over an element's own height.

The following example demonstrates how to set the ItemHeight property in Extensible Application Markup Language (XAML).

<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" WindowTitle="WrapPanel Properties Sample">
  <Border HorizontalAlignment="Left" VerticalAlignment="Top" BorderBrush="Black" BorderThickness="2">
        <WrapPanel Orientation="Horizontal" Background="Azure" ItemWidth="25" ItemHeight="25" Height="200" Width="200">
            <Button Width="200">Button 1</Button>
            <Button>Button 2</Button>
            <Button>Button 3</Button>

The following example demonstrates how to set the ItemHeight property by using code.

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

         // Instantiate a new WrapPanel and set properties
         myWrapPanel = gcnew WrapPanel();
         myWrapPanel->Background = Brushes::Azure;
         myWrapPanel->Orientation = Orientation::Horizontal;
         myWrapPanel->ItemHeight = 25;

         myWrapPanel->ItemWidth = 75;
         myWrapPanel->Width = 150;
         myWrapPanel->HorizontalAlignment = HorizontalAlignment::Left;
         myWrapPanel->VerticalAlignment = VerticalAlignment::Top;

         // Define 3 button elements. Each button is sized at width of 75, so the third button wraps to the next line.
         btn1 = gcnew Button();
         btn1->Content = "Button 1";
         btn2 = gcnew Button();
         btn2->Content = "Button 2";
         btn3 = gcnew Button();
         btn3->Content = "Button 3";

         // Add the buttons to the parent WrapPanel using the Children.Add method.

         // Add the WrapPanel to the MainWindow as Content
         mainWindow->Content = myWrapPanel;
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" WindowTitle="WrapPanel Sample">
  <Border HorizontalAlignment="Left" VerticalAlignment="Top" BorderBrush="Black" BorderThickness="2">
        <WrapPanel Background="LightBlue" Width="200" Height="100">
            <Button Width="200">Button 1</Button>
            <Button>Button 2</Button>
            <Button>Button 3</Button>
            <Button>Button 4</Button>

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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