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Hashtable DataType by Charles Carroll

.net offers many rich data types and the ability to create your own. My personal favorite is a hashtable. .net also offers ArrayLists, Ques and Stacks as data types as well.

This example will show you all the basic syntax of manipulating and displaying a hashtable:

   filename=\experiments\hashtable\basics.aspx

<Test Script Below>

 

<%@ import namespace="system.collections"%>
<%@Page Language="VB" Trace="True" %>
<script language="VB" runat="server">
Sub Page_Load(Src As Object, E As EventArgs) 
    dim hashTest as new hashtable
    hashtest.add("fname","Hitoshi")
    hashtest.add("lname","Carroll")
    hashtest.add("bday","6/16/1998")
    
    If hashtest.contains("fname") THEN
        trace.write ("SUB page_load","First Name is" & hashtest("fname"))
    ELSE
        trace.write ("SUB page_load","Subject has no First Name")
    END IF
    
    Call Trace_HashTable(hashtest,"hashtest")
End Sub

SUB Trace_HashTable(p1 as HashTable,p2HashName as string)
    Trace.write("SUB Trace_Hashtable", p2HashName & " count=" & p1.count())
    Dim d As DictionaryEntry
    For Each d IN p1
        Trace.Write("SUB Trace_Hashtable", p2HashName & " " & d.Key & "=" & d.Value)
    Next d    
END SUB
</script>
<html><head>
<title>Radio Buttons from States</title>
</head>
<body bgcolor="#FFFFFF">
</body></html>
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