# C1.Win.C1Input.PlaceholderCollection ## Content

PlaceholderCollection Class

A collection of CustomPlaceholder objects.

PlaceholderCollection

[ListBindable(false)]
public class PlaceholderCollection : CollectionBase, IList, ICollection, IEnumerable

<ListBindable(False)>
Public Class PlaceholderCollection
    Inherits CollectionBase
    Implements IList, ICollection, IEnumerable

Name	Description
this[int]	Gets or sets the the special character at the specified index.

Name	Description
Add(CustomPlaceholder)	Adds a new special character to the collection.
AddRange(CustomPlaceholder[])	Adds the special characters of an ICollection to the end of the PlaceholderCollection.
CheckItemBeforeAdding(CustomPlaceholder)	Checks validity of the placeholder
Contains(char)	Determines whether a character is in the placeholder collection.
CopyTo(CustomPlaceholder[], int)	Copies elements of the collection to an array starting at a particular array index.
GetItem(char)	Returns the CustomPlaceholder object corresponding to the character argument, or null if it does not belong to the collection.
IndexOf(char)	Returns the index of a character in the placeholder collection, or –1 if it does not belong to the collection.
Insert(int, CustomPlaceholder)	Inserts a new special character to the collection at the specified position.
OnChanged(EventArgs)	This method is for internal use only.
OnInsert(int, object)	This method is for internal use only.
Remove(char)	Removes a specific character from the collection.

Name	Description
Changed	Occurs when PlaceholderCollection is changed