OnClick is reloading the code from the start

Imports System Imports System.Data Imports System.Data.OleDb Imports System.Configuration Imports System.Web Imports System.Web.Security Imports System.Web.UI Imports System.Web.UI.WebControls Imports System.Web.UI.WebControls.WebParts Imports System.Web.UI.HtmlControls Imports System.IO Public Class activities Inherits System.Web.UI.Page Private projectID As String = String.Empty Private counter As Integer Private stopper As Integer = 0 Private lastID As Integer = 0 Protected WithEvents lblProjectTitleLOAD As System.Web.UI.WebControls.Label Protected WithEvents ddlProjectActivities As System.Web.UI.WebControls.DropDownList Protected WithEvents btnProjectActivityPREVIOUS As System.Web.UI.WebControls.Button Protected WithEvents btnProjectActivityNEXT As System.Web.UI.WebControls.Button Protected WithEvents tbComments As System.Web.UI.WebControls.TextBox Protected WithEvents ddlContr ...