protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { MembershipUser CurrentUser = Membership.GetUser(); if (CurrentUser == null) { Response.Redirect($"~/Pages/Common/MainLogin.aspx"); } Guid UserId = (Guid)((Membership.GetUser()).ProviderUserKey); DataTable dt = ConnectionBLL.GetAllFromAndWaiting(UserId); gv_viewSentReq.DataSource = dt; gv_viewSentReq.DataKeyNames = new string[] { "ConnectionRequestId", "FK_UserToId", "UserName" }; gv_viewSentReq.DataBind(); dt.PrimaryKey = new DataColumn[] { dt.Columns["ConnectionRequestId"], dt.Columns["FK_UserToId"], dt.Columns["UserName"] }; } }