FormCollection Class (System.Windows.Forms)

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Microsoft Visual Studio 2010/.NET Framework 4

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.NET Framework Class Library

FormCollection Class

Represents a collection of Form objects.

Inheritance Hierarchy

System..::.Object
System.Collections..::.ReadOnlyCollectionBase
System.Windows.Forms..::.FormCollection

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

Syntax

Visual Basic

Public Class FormCollection _
    Inherits ReadOnlyCollectionBase

public class FormCollection : ReadOnlyCollectionBase

Visual C++

public ref class FormCollection : public ReadOnlyCollectionBase

type FormCollection =  
    class
        inherit ReadOnlyCollectionBase
    end

The FormCollection type exposes the following members.

Constructors

	Name	Description
	FormCollection	Initializes a new instance of the FormCollection class.

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Properties

	Name	Description
	Count	Gets the number of elements contained in the ReadOnlyCollectionBase instance. (Inherited from ReadOnlyCollectionBase.)
	InnerList	Gets the list of elements contained in the ReadOnlyCollectionBase instance. (Inherited from ReadOnlyCollectionBase.)
	Item[([(Int32])])	Gets or sets an element in the collection by its numeric index.
	Item[([(String])])	Gets or sets an element in the collection by the name of the associated Form object.

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Methods

	Name	Description
	Equals(Object)	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetEnumerator	Returns an enumerator that iterates through the ReadOnlyCollectionBase instance. (Inherited from ReadOnlyCollectionBase.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Explicit Interface Implementations

	Name	Description
	ICollection..::.CopyTo	Copies the entire ReadOnlyCollectionBase to a compatible one-dimensional Array, starting at the specified index of the target array. (Inherited from ReadOnlyCollectionBase.)
	ICollection..::.IsSynchronized	Gets a value indicating whether access to a ReadOnlyCollectionBase object is synchronized (thread safe). (Inherited from ReadOnlyCollectionBase.)
	ICollection..::.SyncRoot	Gets an object that can be used to synchronize access to a ReadOnlyCollectionBase object. (Inherited from ReadOnlyCollectionBase.)

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Remarks

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

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.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.

Thread Safety

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

Reference

System.Windows.Forms Namespace

OpenForms