Class wwNameValueCollection

A special collection that allows key and value pairs to be stored and retrieved by the key name or index.

This class manages the Collection in a two dimensional array aItems which contains key and value in the first and second columns respectively.


        foxpro
        
            
        
     

        foxpro
        
            
        
     
loCol = CREATEOBJECT("wwNameValueCollection")
loCol.Add("Item1","This is Item1")
loCol.Add("Item2","This is Item2")

? loCol.Count              && 2
? loCol.Item("Item2")      && This is Item2
? loCol.Item("Item1")      && This is Item1

? loCol.aItems["Item2",2]      && This is Item1
? loCol.aItems["Item1",2]      && This is Item2


? loCol.Item("ItemBOGUS")  && .NULL.

? loCol.GetIndex("Item2")  && 2
? loCol.GetKey(2)          && Item2

loCol.Remove("Item1")
? loCol.Count              && 1

Custom wwCollection

Class Members

Member		Description
	Add	Adds an item to the collection. The value can be added either just by adding the value, or by adding a key and value combination. This method updates an existing item with the same key. o.Add(Key,Value)
	Clear	Clears the collection of all items. o.Clear()
	FastAdd	Similar to the Add method this method allows adding an item to the collection. Unlike Add() though this method will not check if a key of the same name exists and simply add it. This means it's… o.FastAdd(Key,Value)
	Get	Retrieves an item from the collection and returns the item as an Key and Value pair object that has Key and Value properties. ```foxpro * Function that returns a wwNameValueCollection loVars =… o.Get(lvKey)**
	GetIndex	o.GetIndex(Key)
	GetKey	Returns the key for a specified index into the collection. o.GetKey(Index)
	InsertAt	Inserts an item at the specified index position. Items are inserted before the item specified. o.InsertAt(Position,Key,Value)
	Item	Returns an item's value out of the collection either by index or by string key. Note if you want both the key and value returned as an object use the [Get()](vfps://Topic/_3I010HPC5) method. o.Item(Key)
	Remove	Removes an item out of the collection by index or key. o.Remove(Key)
	ToAttributeString	Creates an Attribute string of key value pairs like that can be used for HTML elements. For example: ```foxpro loCol =… o.ToAttributeString(lcSeparator)
	UpdateItem	Updates an item in the collection with a new value. o.UpdateItem(lvKey, lvValue)
	aItems[]	The internally maintained two-dimensional array of items added. This array is two dimensional and contains the Key in the first column and the Value in the second.
	Count	The count of items in this collection.