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Posted by LuizItatiba 3 years 45 weeks ago

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 LuizItatiba
mobiForge Newbie
Posts: 2
Joined: 3 years ago
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Hello staff, to run my application Asp.Net Mobile, with the Object - Object List, gathering data from a DataBind, the following occurs

A) The application will run it performs and displays the list of items in Object List normally and click it vai him for the part of the item or record details of the item normally, the problem is that when you click on 'back' or command 'Return to list' he accuses the following error of postback

Erro de Servidor no Aplicativo '/VS2005/NET2.0/AspNetMobile/objectlistcsharp'.
________________________________________
Invalid posted data for current ObjectList ViewMode. (The ObjectList may have been databound on postback during Page_Load, resetting the ViewMode. Call DataBind in Page_Load only if IsPostBack is false.)
Description: There was an exception untreated during the implementation of the current web request Examine the tracking of battery for more information about the error and which originated in the code.

Details of the Exception: System.Exception: Invalid posted data for current ObjectList ViewMode.  (The ObjectList may have been databound on postback during Page_Load, resetting the ViewMode.  Call DataBind in Page_Load only if IsPostBack is false.)
 
Error of Origin: 
Unhandled exception was generated during the execution of the current web request The information related to the origin and the place of exception can be identified using the tracking of Cell exception below
. 
 
Tracking Cell: 
 
[Exception: Invalid posted data for current ObjectList ViewMode.  (The ObjectList may have been databound on postback during Page_Load, resetting the ViewMode.  Call DataBind in Page_Load only if IsPostBack is false.)]
   System.Web.UI.MobileControls.Adapters.HtmlObjectListAdapter.HandlePostBackEvent(String eventArgument) +343
   System.Web.UI.MobileControls.ObjectList.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +24
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
   System.Web.UI.MobileControls.MobilePage.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +77
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +177
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1746

Below I am sending the code-behind of my application and the source of pagina.Se pd someone help me now thank you

CODE-BEHIND

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.Mobile;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.MobileControls;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.OleDb;
 
public partial class _Default : System.Web.UI.MobileControls.MobilePage
{
    protected void Page_Load(object sender, EventArgs e)
    {
 
	        OleDbConnection DBConn; 
	        OleDbDataAdapter DBCommand; 
	        DataSet DSPageData = new DataSet(); 
	        DBConn = new OleDbConnection("PROVIDER=Microsoft.Jet.OLEDB.4.0;" + "DATA SOURCE=" + Server.MapPath("EmployeeDatabase.mdb;")); 
            DBCommand = new OleDbDataAdapter("Select * " + "From Employee " + "Order By FirstName", DBConn); 
	        DBCommand.Fill(DSPageData, "Emps");
            ObjectList1.DataSource = DSPageData.Tables["Emps"].DefaultView;
	        ObjectList1.DataBind(); 
 
    }
}

Source.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register TagPrefix="mobile" Namespace="System.Web.UI.MobileControls" Assembly="System.Web.Mobile" %>
 
<html xmlns="http://www.w3.org/1999/xhtml" >
<body>
    <mobile:Form id="Form1" runat="server">
        <mobile:ObjectList ID="ObjectList1" Runat="server" CommandStyle-StyleReference="subcommand"
            LabelStyle-StyleReference="title">
        </mobile:ObjectList>
 
    </mobile:Form>
</body>
</html>

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