Pass Dynamic connection string to another Windows Form (VB.NET) - vb.net

Question

I am creating a windows application which required Dynamic Connection String in the app starting (user need to provide db credentials through a form), After entering the connection credentials user redirected to new win form
Everything is working fine but how can I pass my dynamic connection to another form.
I tried to save it to App variable but I couldn't (I think its read only)
Also I tried save it to registry but can't retrieve values.
Is there any other option available ? like writing & retrieving ConString to a text file or XML
Thanks

Answer 1

This how you can get and set registry values :
Public Function GetRegistryValue(ByVal KeyName As String, Optional ByVal DefaultValue As Object = Nothing) As Object
Dim res As Object = Nothing
Try
Dim k = My.Computer.Registry.CurrentUser.OpenSubKey("Software\YourAppName", True)
If k IsNot Nothing Then
res = k.GetValue(KeyName, DefaultValue)
Else
k = My.Computer.Registry.CurrentUser.CreateSubKey("Software\YourAppName")
End If
If k IsNot Nothing Then k.Close()
Catch ' ex As Exception
'PromptMsg(ex)
End Try
Return res
End Function
Public Sub SetRegistryValue(ByVal KeyName As String, ByVal _Value As Object)
Try
Dim k = My.Computer.Registry.CurrentUser.OpenSubKey("Software\YourAppName", True)
If k IsNot Nothing Then
k.SetValue(KeyName, _Value)
Else
k = My.Computer.Registry.CurrentUser.CreateSubKey("Software\YourAppName")
k.SetValue(KeyName, _Value)
End If
If k IsNot Nothing Then k.Close()
Catch ' ex As Exception
'PromptMsg(ex)
End Try
End Sub
It's working a 100%, If you please mark this answer as Right