AJAX :: Greater Than Symbol Causing Internal Server Error 500?
Feb 8, 2011
If a user enters "<" or if it already exists in a textbox inside an update panel, I am getting "internal server error 500" during post back. I believe the page suspects a HTML injection and is attempting to stop it. I could use Page.EnableEventValidation to avoid it but I really don't want to do that. Is there any other way, I could resolve it (like replace < with > or something like that)?
Update:
This is happening in a textbox inside a gridView.
[Code]....
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using System;
using System.Collections;
using System.Collections.Generic;
using System.Configuration;
using System.IO;
using System.Net;
using System.Linq;
using System.Web;
using System.Web.Security;
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using System.Web.UI.HtmlControls;
using System.Text.RegularExpressions;
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{
protected void Page_Load(object sender, EventArgs e)
{
string strResult = "";
string url = "http://weather.unisys.com";
WebResponse objResponse;
WebRequest objRequest;
try
{
objRequest = System.Net.HttpWebRequest.Create(url);
}
catch
{
objRequest = System.Net.HttpWebRequest.Create("http://"+ url);
}
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{
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[Code] ....
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Code:
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at AjaxControlToolkit.ToolkitScriptManager.OnInit(EventArgs e) in C:AjaxBuildAjaxServerAjaxControlToolkitToolkitScriptManagerToolkitScriptManager.cs:line 246
at System.Web.UI.Control.InitRecursive(Control namingContainer)
at System.Web.UI.Control.InitRecursive(Control namingContainer)
at System.Web.UI.Control.InitRecursive(Control namingContainer)
at System.Web.UI.Control.InitRecursive(Control namingContainer)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.HandleError(Exception e)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest()
at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)
at System.Web.UI.Page.ProcessRequest(HttpContext context)
at System.Web.Mvc.ViewPage.ProcessRequest(HttpContext context).......................
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