Hi i am getting the following error when running my web application

Server Error in '/' Application.
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A potentially dangerous Request.Form value was detected from the client (TextBox1="<html><head><meta ht...").
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 (TextBox1="<html><head><meta ht...").

Source Error:


[No relevant source lines]


Source File: c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\f73942d8\3257ff47\App_Web_pd7bdv13.0.cs Line: 0

Stack Trace:


[HttpRequestValidationException (0x80004005): A potentially dangerous Request.Form value was detected from the client (TextBox1="<html><head><meta ht...").]
System.Web.HttpRequest.ValidateString(String s, String valueName, String collectionName) +3307682
System.Web.HttpRequest.ValidateNameValueCollection(NameValueCollection nvc, String collectionName) +108
System.Web.HttpRequest.get_Form() +119
System.Web.HttpRequest.get_HasForm() +3309630
System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull) +45
System.Web.UI.Page.DeterminePostBackMode() +65
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +7350
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +213
System.Web.UI.Page.ProcessRequest() +86
System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +18
System.Web.UI.Page.ProcessRequest(HttpContext context) +49
ASP.default_aspx.ProcessRequest(HttpContext context) in c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\f73942d8\3257ff47\App_Web_pd7bdv13.0.cs:0
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +358
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64


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Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433

Does anyone know what it is referring too, or how i can go about solving it??
Please help!

hey i solved the problem, it was like you suggested about the requestValidation :)
thank you :)

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