ASP Dictionary Object
ASP Dictionary Object
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The Dictionary object stores information in name/value pairs.
Try it Yourself - Examples
Does a specified key exist?
How to create a Dictionary object, and then use the Exists method to check if a specified key exists.
Return an array of all items
How to use the Items method to return an array of all the items.
Return an array of all keys
How to use the Keys method to return an array of all the keys.
Return the value of an item
How to use the Item property to return the value of an item.
Set a key
How to use the Key property to set a key in a Dictionary object.
Return the number of key/item pairs
How to use the Count property to return the number of key/item pairs.
The Dictionary Object
The Dictionary object is used to store information in name/value pairs
(referred to as key and item). The Dictionary object might seem similar to
Arrays, however, the Dictionary object is a more desirable solution to
manipulate related data.
Comparing Dictionaries and Arrays:
The following example creates a Dictionary object, adds some key/item
pairs to it, and retrieves the item value for the key gr:
<%
Dim d
Set d=Server.CreateObject("Scripting.Dictionary")
d.Add "re","Red"
d.Add "gr","Green"
d.Add "bl","Blue"
d.Add "pi","Pink"
Response.Write("The value of key gr is: " & d.Item("gr"))
%>
Output:
The value of key gr is: Green
The Dictionary object's properties and methods are described below:
Properties
CompareMode
Sets or returns the comparison mode for comparing keys in a Dictionary
object
Count
Returns the number of key/item pairs in a Dictionary object
Item
Sets or returns the value of an item in a Dictionary object
Key
Sets a new key value for an existing key value in a
Dictionary object
Methods
Add
Adds a new key/item pair to a Dictionary object
Exists
Returns a Boolean value that indicates whether a specified key exists in
the Dictionary object
Items
Returns an array of all the items in a Dictionary
object
Keys
Returns an array of all the keys in a Dictionary
object
Remove
Removes one specified key/item pair from the Dictionary
object
RemoveAll
Removes all the key/item pairs in the Dictionary object
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