# C1.Win.C1Input.DropDownItemCollection ## Content

DropDownItemCollection Class

Represents collection of drop down items.

DropDownItemCollection

public class DropDownItemCollection : CollectionBase, IList, ICollection, IEnumerable

Public Class DropDownItemCollection
    Inherits CollectionBase
    Implements IList, ICollection, IEnumerable

Name	Description
this[int]	Gets or sets the item at the specified indexed location in the collection.

Name	Description
Add(DropDownItem)	Adds the specified item to the end of the collection.
Contains(DropDownItem)	Indicates whether the collection contains a specific DropDownItem.
IndexOf(DropDownItem)	Returns the zero-based index of the first occurrence of a value in the list.
Insert(int, DropDownItem)	Inserts the specified item into the collection at the specified location.
OnClear()	Performs additional custom processes when clearing the contents of the DropDownItemCollection instance.
OnClearComplete()	Performs additional custom processes after clearing the contents of the DropDownItemCollection instance.
OnInsertComplete(int, object)	Performs additional custom processes after inserting an DropDownItem into the DropDownItemCollection instance.
OnRemoveComplete(int, object)	Performs additional custom processes after removing an DropDownItem from the DropDownItemCollection instance.
OnSetComplete(int, object, object)	Performs additional custom processes after setting an DropDownItem in the DropDownItemCollection instance.
Remove(DropDownItem)	Removes the specified item from the collection.