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FormCollection Class

Represents a collection of Form objects.

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

public class FormCollection : ReadOnlyCollectionBase
public class FormCollection extends ReadOnlyCollectionBase
public class FormCollection extends ReadOnlyCollectionBase
Not applicable.

FormCollection is used by the Application object to list the currently open forms in an application through the OpenForms property.


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0