IEnumerable Interface
Exposes the enumerator, which supports a simple iteration over a collection.
For a list of all members of this type, see IEnumerable Members.
[Visual Basic] <Guid("496B0ABE-CDEE-11d3-88E8-00902754C43A")> Public Interface IEnumerable [C#] [Guid("496B0ABE-CDEE-11d3-88E8-00902754C43A")] public interface IEnumerable [C++] [Guid("496B0ABE-CDEE-11d3-88E8-00902754C43A")] public __gc __interface IEnumerable [JScript] public Guid("496B0ABE-CDEE-11d3-88E8-00902754C43A") interface IEnumerable
Classes that Implement IEnumerable
| Class | Description |
|---|---|
| Array | Provides methods for creating, manipulating, searching, and sorting arrays, thereby serving as the base class for all arrays in the common language runtime. |
| ArrayList | Implements the IList interface using an array whose size is dynamically increased as required. |
| AttributeCollection | Represents a collection of attributes. |
| BaseChannelObjectWithProperties | Provides a base implementation of a channel object that wants to provide a dictionary interface to its properties. |
| BaseCollection | Provides the base functionality for creating data-related collections in the System.Windows.Forms namespace. |
| BindingContext | Manages the collection of BindingManagerBase objects for any object that inherits from the Control class. |
| BitArray | Manages a compact array of bit values, which are represented as Booleans, where true indicates that the bit is on (1) and false indicates the bit is off (0). |
| Cache | Implements the cache for a Web application. This class cannot be inherited. |
| CaptureCollection | Represents a sequence of capture substrings. CaptureCollection returns the set of captures done by a single capturing group. |
| CheckedListBox.CheckedIndexCollection | Encapsulates the collection of indexes of checked items (including items in an indeterminate state) in a CheckedListBox. |
| CheckedListBox.CheckedItemCollection | Encapsulates the collection of checked items (including items in an indeterminate state) in a CheckedListBox control. |
| ClerkMonitor | Contains a snapshot of all Clerks active in the process. |
| CodeNamespaceImportCollection | Represents a collection of CodeNamespaceImport objects. |
| CollectionBase | Provides the abstract (MustInherit in Visual Basic) base class for a strongly typed collection. |
| ComboBox.ObjectCollection | Represents the collection of items in a ComboBox. |
| Control.ControlCollection | Represents a collection of Control objects |
| ControlCollection | Provides a collection container that enables ASP.NET server controls to maintain a list of their child controls. |
| CookieCollection | Provides a collection container for instances of the Cookie class. |
| CredentialCache | Provides storage for multiple credentials. |
| DataBindingCollection | Provides a collection of DataBinding objects for an ASP.NET server control. This class cannot be inherited. |
| DataColumnMappingCollection | Contains a collection of DataColumnMapping objects. |
| DataGridColumnCollection | A collection of DataGridColumn derived column objects that represent the columns in a DataGrid control. This class cannot be inherited. |
| DataGridItemCollection | Represents a collection of DataGridItem objects in a DataGrid control. |
| DataKeyCollection | Represents a collection that contains the key field of each record in a data source. This class cannot be inherited. |
| DataListItemCollection | Represents the collection of DataListItem objects in the DataList control. This class cannot be inherited. |
| DataTableMappingCollection | A collection of DataTableMapping objects. This class cannot be inherited. |
| DataView | Represents a databindable, customized view of a DataTable for sorting, filtering, searching, editing, and navigation. |
| DataViewManager | Contains a default DataViewSettingCollection for each DataTable in a DataSet. |
| DataViewSettingCollection | Contains a read-only collection of DataViewSetting objects for each DataTable in a DataSet. |
| DesignerCollection | Represents a collection of designers. |
| DictionaryBase | Provides the abstract (MustInherit in Visual Basic) base class for a strongly typed collection of key-and-value pairs. |
| DirectoryEntries | Contains the children (child entries) of an entry in Active Directory. |
| EventDescriptorCollection | Represents a collection of EventDescriptor objects. |
| EventLogEntryCollection | Defines size and enumerators for a collection of EventLogEntry instances. |
| Evidence | Defines the set of information that constitutes input to security policy decisions. This class cannot be inherited. |
| GridItemCollection | Contains a collection of GridItem objects. |
| GroupCollection | Represents a collection of captured groups. GroupCollection returns the set of captured groups in a single match. |
| Hashtable | Represents a collection of key-and-value pairs that are organized based on the hash code of the key. |
| HtmlTableCellCollection | A collection of HtmlTableCell objects that represent the cells in a single row of an HtmlTable control. This class cannot be inherited. |
| HtmlTableRowCollection | A collection of HtmlTableRow objects that represent the rows of an HtmlTable control. This class cannot be inherited. |
| HttpSessionState | Provides access to session-state values as well as session-level settings and lifetime management methods. |
| HttpStaticObjectsCollection | Provides a static objects collection for the StaticObjects property. |
| HybridDictionary | Implements IDictionary by using a ListDictionary while the collection is small, and then switching to a Hashtable when the collection gets large. |
| ImageList.ImageCollection | Encapsulates the collection of Image objects in an ImageList. |
| InternalDataCollectionBase | Provides the base functionality for creating collections. |
| KeyInfo | Represents an XMLDSIG <KeyInfo> element. |
| LinkLabel.LinkCollection | Represents the collection of links within a LinkLabel control. |
| ListBox.ObjectCollection | Represents the collection of items in a ListBox. |
| ListBox.SelectedIndexCollection | Represents the collection containing the indexes to the selected items in a ListBox. |
| ListBox.SelectedObjectCollection | Represents the collection of selected items in the ListBox. |
| ListDictionary | Implements IDictionary using a singly linked list. Recommended for collections that typically contain 10 items or less. |
| ListItemCollection | A collection of ListItem objects in a list control. This class cannot be inherited. |
| ListView.CheckedIndexCollection | Represents the collection containing the indexes to the checked items in a list view control. |
| ListView.CheckedListViewItemCollection | Represents the collection of checked items in a list view control. |
| ListView.ColumnHeaderCollection | Represents the collection of column headers in a ListView control. |
| ListView.ListViewItemCollection | Represents the collection of items in a ListView control. |
| ListView.SelectedIndexCollection | Represents the collection containing the indexes to the selected items in a list view control. |
| ListView.SelectedListViewItemCollection | Represents the collection of selected items in a list view control. |
| ListViewItem.ListViewSubItemCollection | Represents a collection of ListViewItem.ListViewSubItem objects stored in a ListViewItem. |
| ManagementObjectCollection | Represents different collections of management objects retrieved through WMI. The objects in this collection are of ManagementBaseObject-derived types, including ManagementObject and ManagementClass.
The collection can be the result of a WMI query executed through a ManagementObjectSearcher object, or an enumeration of management objects of a specified type retrieved through a ManagementClass representing that type. In addition, this can be a collection of management objects related in a specified way to a specific management object - in this case the collection would be retrieved through a method such as GetRelated. The collection can be walked using the ManagementObjectCollection.ManagementObjectEnumerator and objects in it can be inspected or manipulated for various management tasks. |
| MatchCollection | Represents the set of successful matches found by iteratively applying a regular expression pattern to the input string. |
| Menu.MenuItemCollection | Represents a collection of MenuItem objects. |
| MessageQueue | Provides access to a queue on a Message Queuing server. |
| MethodDataCollection | Represents the set of methods available in the collection. |
| NameObjectCollectionBase | Provides the abstract (MustInherit in Visual Basic) base class for a collection of associated String keys and Object values that can be accessed either with the key or with the index. |
| NameObjectCollectionBase.KeysCollection | Represents a collection of the String keys of a collection. |
| OdbcDataReader | Provides a way of reading a forward-only stream of data rows from a data source. This class cannot be inherited. |
| OdbcErrorCollection | Collects all errors generated by the OdbcDataAdapter. This class cannot be inherited. |
| OdbcParameterCollection | Represents a collection of parameters relevant to an OdbcCommand as well as their respective mappings to columns in a DataSet. This class cannot be inherited. |
| OleDbDataReader | Provides a way of reading a forward-only stream of data rows from a data source. This class cannot be inherited. |
| OleDbErrorCollection | Collects all errors generated by the .NET Framework Data Provider for OLE DB. This class cannot be inherited. |
| OleDbParameterCollection | Represents a collection of parameters relevant to an OleDbCommand as well as their respective mappings to columns in a DataSet. |
| OracleDataReader | Provides a way of reading a forward-only stream of data rows from a data source. This class cannot be inherited. |
| OracleParameterCollection | Represents a collection of parameters relevant to an OracleCommand as well as their respective mappings to columns in a DataSet. This class cannot be inherited. |
| PagedDataSource | Encapsulates the properties of the DataGrid control that allow it to perform paging. This class cannot be inherited. |
| PermissionSet | Represents a collection that can contain many different types of permissions. |
| PrinterSettings.PaperSizeCollection | Contains a collection of PaperSize objects. |
| PrinterSettings.PaperSourceCollection | Contains a collection of PaperSource objects. |
| PrinterSettings.PrinterResolutionCollection | Contains a collection of PrinterResolution objects. |
| PropertyCollection | Contains the properties of a DirectoryEntry. |
| PropertyDataCollection | Represents the set of properties of a WMI object. |
| PropertyDescriptorCollection | Represents a collection of PropertyDescriptor objects. |
| PropertyGrid.PropertyTabCollection | Contains a collection of PropertyTab objects. |
| QualifierDataCollection | Represents a collection of QualifierData objects. |
| Queue | Represents a first-in, first-out collection of objects. |
| ReadOnlyCollectionBase | Provides the abstract (MustInherit in Visual Basic) base class for a strongly typed read-only collection. |
| RepeaterItemCollection | Represents a collection of RepeaterItem objects in the Repeater control. This class cannot be inherited. |
| ResourceReader | Enumerates .resources files and streams, reading sequential resource name and value pairs. |
| ResourceSet | Stores all the resources localized for one particular culture, ignoring all other cultures, including any fallback rules. |
| ResXResourceReader | Enumerates XML resource (.resx) files and streams, and reads the sequential resource name and value pairs. |
| SchemaNameCollection | Contains a list of the schema names that the SchemaFilter property of a DirectoryEntries object can use. |
| SearchResultCollection | Contains the SearchResult instances that the Active Directory hierarchy returned during a DirectorySearcher query. |
| SecurityCallers | Provides an ordered collection of identities in the current call chain. |
| SelectedDatesCollection | Encapsulates a collection of System.DateTime objects that represent the selected dates in a Calendar control. This class cannot be inherited. |
| SharedPropertyGroupManager | Controls access to shared property groups. This class cannot be inherited. |
| SignedInfo | Contains information about the canonicalization algorithm and signature algorithm used for the XML signature. |
| SortedList | Represents a collection of key-and-value pairs that are sorted by the keys and are accessible by key and by index. |
| SqlCeErrorCollection | Collects all errors generated by the .NET Compact Framework Data Provider for SQL Server CE. This class cannot be inherited. |
| SqlCeParameterCollection | Collects all parameters relevant to a SqlCeCommand as well as their respective mappings to DataSet columns. |
| SqlDataReader | Provides a means of reading a forward-only stream of rows from a SQL Server database. This class cannot be inherited. |
| SqlErrorCollection | Collects all errors generated by the .NET Framework Data Provider for SQL Server. This class cannot be inherited. |
| SqlParameterCollection | Represents a collection of parameters relevant to a SqlCommand as well as their respective mappings to columns in a DataSet. This class cannot be inherited. |
| Stack | Represents a simple last-in-first-out collection of objects. |
| StateBag | Manages the view state of ASP.NET server controls, including pages. This class cannot be inherited. |
| StatusBar.StatusBarPanelCollection | Represents the collection of panels in a StatusBar control. |
| String | Represents text; that is, a series of Unicode characters. |
| StringCollection | Represents a collection of strings. |
| StringDictionary | Implements a hashtable with the key strongly typed to be a string rather than an object. |
| TabControl.TabPageCollection | Contains a collection of TabPage objects. |
| TableCellCollection | Encapsulates a collection of TableHeaderCell and TableCell objects that make up a row in a Table control. This class cannot be inherited. |
| TableRowCollection | Encapsulates a collection of TableRow objects that represent a single row in a Table control. This class cannot be inherited. |
| TempFileCollection | Represents a collection of temporary files. |
| ToolBar.ToolBarButtonCollection | Encapsulates a collection of ToolBarButton controls for use by the ToolBar class. |
| TraceListenerCollection | Provides a thread-safe list of TraceListener objects. |
| TreeNodeCollection | Represents a collection of TreeNode objects. |
| TypeConverter.StandardValuesCollection | Represents a collection of values. |
| ValidatorCollection | Exposes an array of IValidator references. This class cannot be inherited. |
| XmlNamedNodeMap | Represents a collection of nodes that can be accessed by name or index. |
| XmlNamespaceManager | Resolves, adds and removes namespaces to a collection and provides scope management for these namespaces. This class is used by the XsltContext and XmlReader classes. |
| XmlNode | Represents a single node in the XML document. |
| XmlNodeList | Represents an ordered collection of nodes. |
| XmlSchemaCollection | Contains a cache of XML Schema definition language (XSD) and XML-Data Reduced (XDR) schemas. This class cannot be inherited. |
Remarks
Notes to Implementers:
IEnumerable must be implemented to support the ForEach semantics of Microsoft Visual Basic. COM classes that allow enumerators also implement this interface.
Requirements
Namespace: System.Collections
Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, .NET Compact Framework
Assembly: Mscorlib (in Mscorlib.dll)
See Also
IEnumerable Members | System.Collections Namespace | IEnumerator