associative array like in php in vb.net

Question

in PHP we know to make associative array using this code

$variable = array('0001'=>'value1', '0010'=>'value2');

and to print all keys and values using this code

foreach($variable as $key1 => $val1)
  foreach($val1 as $key2 => $val2)
    echo ("$key2 => $val2 <br />")

and the question is how to perform this in vb.net?

as i know to make associative array in vb.net using this :

Dim var As New Collection
var.Add("value1", "0001")
var.Add("value2", "0010")

how about to print value and key in vb.net like foreach in PHP? thanks

Answer 1

Although i'm not familiar with PHP (anymore), i assume that associative arrays are the equivalent of a HashTable or the more modern, strongly typed Dictionary:

Dim dict = New Dictionary(Of String, String)
dict.Add("value1", "0001")
dict.Add("value2", "0010")

Normally you would lookup keys:

Dim val2 = dict("value2") ' <-- 0010

But if you want to enumerate it (less efficient):

For Each kv As KeyValuePair(Of String, String) In dict
    Console.WriteLine("Key:{0} Value:{1}",kv.Key, kv.Value)
Next