Represents the collection of items in a ComboBox.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Thetype exposes the following members.
|Add||Adds an item to the list of items for a ComboBox.|
|AddRange||Adds an array of items to the list of items for a ComboBox.|
|Clear||Removes all items from the ComboBox.|
|Contains||Determines if the specified item is located within the collection.|
|CopyTo||Copies the entire collection into an existing array of objects at a specified location within the array.|
|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 can be used to iterate through the item collection.|
|GetHashCode||Serves as the default hash function. (Inherited from Object.)|
|GetType||Gets the Type of the current instance. (Inherited from Object.)|
|IndexOf||Retrieves the index within the collection of the specified item.|
|Insert||Inserts an item into the collection at the specified index.|
|MemberwiseClone||Creates a shallow copy of the current Object. (Inherited from Object.)|
|Remove||Removes the specified item from the ComboBox.|
|RemoveAt||Removes an item from the ComboBox at the specified index.|
|ToString||Returns a string that represents the current object. (Inherited from Object.)|
|AsParallel()||Overloaded. Enables parallelization of a query. (Defined by ParallelEnumerable.)|
|AsParallel()||Overloaded. (Defined by ParallelEnumerable.)|
|AsQueryable()||Overloaded. Converts an IEnumerable to an IQueryable. (Defined by Queryable.)|
|AsQueryable()||Overloaded. (Defined by Queryable.)|
|Cast<TResult>()||Overloaded. Casts the elements of an IEnumerable to the specified type. (Defined by Enumerable.)|
|Cast<TResult>()||Overloaded. (Defined by Enumerable.)|
|OfType<TResult>()||Overloaded. Filters the elements of an IEnumerable based on a specified type. (Defined by Enumerable.)|
|OfType<TResult>()||Overloaded. (Defined by Enumerable.)|
|ICollection.CopyTo||Infrastructure. For a description of this member, see ICollection.CopyTo.|
|ICollection.IsSynchronized||Infrastructure. For a description of this member, see ICollection.IsSynchronized.|
|ICollection.SyncRoot||Infrastructure. For a description of this member, see ICollection.SyncRoot.|
|IList.Add||Infrastructure. For a description of this member, see IList.Add.|
|IList.IsFixedSize||Infrastructure. For a description of this member, see IList.IsFixedSize.|
The class encapsulates the items in the ComboBox. The object collection of a combo box can be used to manage many types of objects, including strings, images, and custom business objects.
You can add items to the collection in several ways. The Add method adds one object to the collection. To add a number of objects to the collection, it is best to create an array of items and assign with the AddRange method. To insert an object at a specific location within the collection, you can use the Insert method. To remove items at a known index in the collection you can use either the Remove method or the RemoveAt method. The Clear method removes all the items from the collection.
In addition to methods and properties for adding and removing items, the also provides methods to find items within the collection. The Contains method enables you to determine if an object is a member of the collection. Once you know that the item is located within the collection, you can use the IndexOf method to determine where the item is located within the collection.
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.