Form.ActivateMdiChild Method (System.Windows.Forms)

ActivateMdiChild Method

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This page is specific to

Microsoft Visual Studio 2010/.NET Framework 4

Other versions are also available for the following:

.NET Framework Class Library

Form..::.ActivateMdiChild Method

Activates the MDI child of a form.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)

Syntax

Visual Basic

Protected Sub ActivateMdiChild ( _
    form As Form _
)

protected void ActivateMdiChild(
    Form form
)

Visual C++

protected:
void ActivateMdiChild(
    Form^ form
)

member ActivateMdiChild : 
        form:Form -> unit

Parameters

form: Type: System.Windows.Forms..::.Form
The child form to activate.

Remarks

If the form parameter is already the active MDI child form, then the ActivateMdiChild method simply returns. If form is not nullNothingnullptra null reference (Nothing in Visual Basic), then it is set to be the active MDI child form.

Whether the form parameter is nullNothingnullptra null reference (Nothing in Visual Basic) or not, ActivateMdiChild raises the MdiChildActivate event.

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

Reference

Form Class

System.Windows.Forms Namespace

ActiveMdiChild

ActiveForm

MdiChildActivate

Other Resources

Multiple-Document Interface (MDI) Applications

How to: Determine the Active MDI Child

How to: Send Data to the Active MDI Child