How to VB.Net NameValueCollection

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)


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

When you execute this source code , you will get each Key/Value sets.