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WindowsFormsHost.Child Property

Gets or sets the child control hosted by the WindowsFormsHost element.

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

public Control Child { get; set; }
<object>  <hostedControl .../></object>

XAML Values

object

A WindowsFormsHost element (or a possible subclass).

hostedControl

An element that specifies the hosted Windows Forms control. Specifying the custom control in markup usually requires an xmlns mapping, see XAML Namespaces and Namespace Mapping for WPF XAML.

Property Value

Type: System.Windows.Forms.Control
The hosted Windows Forms control.

ExceptionCondition
ArgumentException

An attempt was made to assign a top-level form as the hosted control.

Only one child control can be hosted, but Child can have any number of children.

The child control cannot be a top-level form.

If Child is a Form, the form's ControlBox property is set to false.

The following code example demonstrates how to use the Child property to add the hosted control to the WindowsFormsHost element. For more information, see Walkthrough: Hosting an ActiveX Control in WPF.

private void Window_Loaded(object sender, RoutedEventArgs e) 
{
    // Create the interop host control.
    System.Windows.Forms.Integration.WindowsFormsHost host =
        new System.Windows.Forms.Integration.WindowsFormsHost();

    // Create the ActiveX control.
    AxWMPLib.AxWindowsMediaPlayer axWmp = new AxWMPLib.AxWindowsMediaPlayer();

    // Assign the ActiveX control as the host control's child.
    host.Child = axWmp;

    // Add the interop host control to the Grid 
    // control's collection of child controls. 
    this.grid1.Children.Add(host);

    // Play a .wav file with the ActiveX control.
    axWmp.URL = @"C:\Windows\Media\tada.wav";
}

.NET Framework

Supported in: 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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