>Sebb wrote: >Presumably the updated hidden field is in a form; if so, the see >section 5.3 and 5.4 of the document.
Sebb: Yes, the updated hidden field is in a form. I checked the section 5.3 and 5.4 and found the following: " These tags are used to define parameters in static HTML. With dynamic HTML, in particular Java**Script, the parameter values can be changed before the form is submitted. If that is the case, you are in trouble. Learn Java**Script, analyze the code that is executed, and modify your application to match that behavior." Which does not described the situation I am facing. In my case, the form's hidden value changed after the request was submitted but before the final result was reached. After the request was submitted, the URL did not change before the final result showed up. Because the hidden value was used for validation, it caused validation error "*Exception Details:* System.ArgumentException: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation." Since I could get through this stage using loadrunner, I am wondering whether it is possible to either access to the javascript function to turn off the validation from http client, or retrive the middle step response. Thank you, DRB
