VB.NET

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.

VB.NET

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

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

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

' Serialize to XML
Dim sb As New Chilkat.StringBuilder
hashTab.ToXmlSb(sb)
Debug.WriteLine(sb.GetAsString())
Debug.WriteLine("---")

' 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 Chilkat.Hashtable
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 Chilkat.StringTable
hashTab2.GetKeys(sTable)

Dim i As Integer = 0
Dim numKeys As Integer = sTable.Count
While i < numKeys
    Dim key As String = sTable.StringAt(i)
    Debug.WriteLine(key & ": " & hashTab2.LookupStr(key))
    i = i + 1
End While