HOW TO USE NAME VALUE COLLECTION IN VB.NET

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")

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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