问题
I have no JQuery or other javascript changing values or html-structure. And I have no controls that is added dynamically.
Still I get the error: The state information is invalid for this page and might be corrupted
The error occurs somewhat random. Here is how I can replicate the issue, aspx-file:
<%@ Page ViewStateEncryptionMode ="Never" MaxPageStateFieldLength="40" ValidateRequest="false" Language="C#" AutoEventWireup="true" EnableEventValidation="false" CodeFile="tbTest.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<title>tbTest </title>
</head>
<body>
<form id="form1" runat="server">
<asp:Button id="Submit1" type="submit"
runat="server" onClick="btnclick_Click" Text="Submit" /><br />
<asp:TextBox ID="tbStatus" enableViewState="true" runat="server" TextMode="MultiLine"
Width="617px" Height="67px" ReadOnly="True" Font-Size="Smaller"></asp:TextBox>
<br />
</form>
</body>
</html>
.cs-file:
public partial class _Default : System.Web.UI.Page
{
protected void Page_Init(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
DateTime timestamp = DateTime.Now;
try
{
tbStatus.Text = timestamp.ToString() + ". Page Loaded. ";
}catch (Exception ex) {
}
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
try
{
Response.Cache.SetNoStore();
} catch (Exception ex){
}
}
}
protected void btnclick_Click(object sender, EventArgs e)
{
DateTime timestamp = DateTime.Now;
try
{
tbStatus.Text += Environment.NewLine + timestamp.ToString() + ". TextBox updated. ";
} catch (Exception ex) {
tbStatus.Text += Environment.NewLine + timestamp.ToString() + ". Error. " + ex.Message.ToString();
}
}
}
This really gives me head-ache. After 3-4 submits the error is there. I have tested changing values for ViewStateEncryptionMode, MaxPageStateFieldLength, ValidateRequest, AutoEventWireup and EnableEventValidation without success.
What can be wrong?
回答1:
Just set the enableEventValidation attribute in the web.config file for the asp.net application to false.
might also need to check http://blog.syedgakbar.com/2007/11/one-possible-reason-for-the-state-information-is-invalid-for-this-page-exception/
And
http://support.microsoft.com/default.aspx?scid=kb;EN-US;829743
IIS compression enabled on IIS6 can also cause this. Verify this is turned off.
回答2:
I had searched many pages and finally this is working for me
protected override object LoadPageStateFromPersistenceMedium()
{
return Session["_ViewState"];
}
protected override void SavePageStateToPersistenceMedium(object viewState)
{
Session["_ViewState"] = viewState;
}
回答3:
I had the same issue without errors in the code. What helped me out was to restart the asp.net session state service:
回答4:
Adding this in webconfig in system.web tag solved my problem.
<pages controlRenderingCompatibilityVersion="4.0" maintainScrollPositionOnPostBack="true" validateRequest="false" />
回答5:
remove if you have
<div><input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="#" /></div>
in masterpage
来源:https://stackoverflow.com/questions/21185954/asp-net-errorthe-state-information-is-invalid-for-this-page-and-might-be-corrup