Em đang làm 1 cái app form có tất cả 4 steps . Hôm nay xong xuôi hết chuẩn bị nộp thì next cái step 3 nó ra lỗi thế này

Server Error in '/' Application.
A potentially dangerous Request.Form value was detected from the client (ctl00$ContentPlaceHolder1$txtYourContribution=".. .aper, TV (Ý tu?ng m?i – V...").
Description: Request Validation has detected a potentially dangerous client input value, and processing of the request has been aborted. This value may indicate an attempt to compromise the security of your application, such as a cross-site scripting attack. You can disable request validation by setting validateRequest=false in the Page directive or in the configuration section. However, it is strongly recommended that your application explicitly check all inputs in this case.

Exception Details: System.Web.HttpRequestValidationException: A potentially dangerous Request.Form value was detected from the client (ctl00$ContentPlaceHolder1$txtYourContribution=".. .aper, TV (Ý tu?ng m?i – V...").

Source Error:

The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL:

1. Add a "Debug=true" directive at the top of the file that generated the error. Example:

<%@ Page Language="C#" Debug="true" %>

or:

2) Add the following section to the configuration file of your application:

<configuration>
<system.web>
<compilation debug="true"/>
</system.web>
</configuration>

Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode.

Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario.

Stack Trace:


[HttpRequestValidationException (0x80004005): A potentially dangerous Request.Form value was detected from the client (ctl00$ContentPlaceHolder1$txtYourContribution=".. .aper, TV (&#221; tu?ng m?i – V...").]
System.Web.HttpRequest.ValidateString(String s, String valueName, String collectionName) +11091883
System.Web.HttpRequest.ValidateNameValueCollection (NameValueCollection nvc, String collectionName) +71
System.Web.HttpRequest.get_Form() +178
System.Web.HttpRequest.get_HasForm() +11092119
System.Web.UI.Page.GetCollectionBasedOnMethod(Bool ean dontReturnNull) +124
System.Web.UI.Page.DeterminePostBackMode() +83
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +11058199
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +11057738
System.Web.UI.Page.ProcessRequest() +91
System.Web.UI.Page.ProcessRequest(HttpContext context) +240
ASP.others_aspx.ProcessRequest(HttpContext context) +9
System.Web.CallHandlerExecutionStep.System.Web.Htt pApplication.IExecutionStep.Execute() +599
System.Web.HttpApplication.ExecuteStep(IExecutionS tep step, Boolean& completedSynchronously) +171
Nên không vào đc step 4 để ấn submit
Em thấy có cách giải quyết nhưng chả hiểu phải làm thế nào. Ai vào giúp em với ạ. Không apply được chắc em chết cmnm