Visual Basic 6.0

Serialize / Deserialize Hashtable to/from XML

Demonstrates how to seralize / deserialize a Hashtable to/from XML.

Note: This example requires Chilkat v9.5.0.64 or later.

Visual Basic 6.0

' Note: This example requires Chilkat v9.5.0.64 or later.

' Add some entries to a hashtable.
Dim hashTab As New ChilkatHashtable

success = hashTab.AddStr("aaa","111")
success = hashTab.AddStr("bbb","222")
success = hashTab.AddStr("ccc","333")

' Serialize to XML
Dim sb As New ChilkatStringBuilder
success = hashTab.ToXmlSb(sb)
Debug.Print sb.GetAsString()
Debug.Print "---"

' The output is as follows.  Each hash table entry
' is contained in an "e" node.  The entry's key
' is in the "k" node, and the value in the "v" node.

' <?xml version="1.0" encoding="utf8-8"?>
' <hashtable>
' <e><k>aaa</k><v>111</v></e>
' <e><k>bbb</k><v>222</v></e>
' <e><k>ccc</k><v>333</v></e>
' </hashtable>
' 

' Now load (deserialize) into a new hash table.
Dim hashTab2 As New ChilkatHashtable
success = hashTab2.AddFromXmlSb(sb)

' Get the hash table keys, and lookup each (to show 
' that the hash table was correctly deserialized).
' The GetKeys method can return the keys in any order.
Dim sTable As New ChilkatStringTable
success = hashTab2.GetKeys(sTable)

Dim i As Long
i = 0
Dim numKeys As Long
numKeys = sTable.Count
Do While i < numKeys
    Dim key As String
    key = sTable.StringAt(i)
    Debug.Print key & ": " & hashTab2.LookupStr(key)
    i = i + 1
Loop