NameValueCollection is used to store data like Name, Value format. It is very similar to Vb.Net HashTable, HashTable also stores data in Key , value format . NameValueCollection can hold more than one value for a corresponding Key.
Adding new pairs
Add(ByVal name As String, ByVal value As String)
Add("High","80")
Get the value of corresponding Key
GetValues(ByVal name As String) As String()
String values() = GetValues("High")
Imports System.Collections.Specialized
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles Button1.Click
Dim markStatus As New NameValueCollection
Dim key As String
Dim values() As String
markStatus.Add("Very High", "80")
markStatus.Add("High", "60")
markStatus.Add("medium", "50")
markStatus.Add("Pass", "40")
For Each key In markStatus.Keys
values = markStatus.GetValues(key)
For Each value As String In values
MsgBox(key & " - " & value)
Next value
Next key
End Sub
End Class