How can I make a timer return to its initial value and reflect in label?

Question

I am working with C#. I have a pictureBox that every 30 seconds change its image. There are a total of 8 images but the problem is that when I finish changing all the images I don't know how to make the timer return to 0 and be reflected in a Label and start running the images again.

Answer 1

In VB

Private ImgListPath As List(Of String) '8
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
    Static whPicIdx As Integer = 0
    Dim ct As Integer = ImgListPath.Count
    PictureBox1.Load(ImgListPath(whPicIdx))
    whPicIdx += 1
    If whPicIdx >= ct Then
        whPicIdx = 0
    End If
End Sub