protected void Page_Load(object sender, EventArgs e)
 {
     if (!this.IsPostBack)
     {
         ddlUser.DataSource = from user in Membership.GetAllUsers().Cast <MembershipUser>()
                              join emp in employeeProvider.GetAll() on user.UserName equals emp.UserName
                              where !user.IsLockedOut
                              select new
         {
             UserName = user.UserName,
             Name     = employeeProvider.GetName(user.UserName) == String.Empty ? user.UserName : employeeProvider.GetName(user.UserName)
         };
         ddlUser.DataTextField  = "Name";
         ddlUser.DataValueField = "UserName";
         ddlUser.DataBind();
         ddlUser.Items.Insert(0, "Select user");
         btnSave.Enabled = false;
     }
 }