Because I need to re-bind the GridView after sending the email, my problem was solved. However, I would like to understand what was happening and why that error message was being fired...
On Nov 18, 12:24 pm, Ana <[email protected]> wrote: > An update to this problem: the error message is fired when I try to > send another email, no matter if I'm trying to resend the same email > or if I'm trying to send another email. > > On Nov 18, 12:14 pm, Ana <[email protected]> wrote: > > > Hi, > > > In my page I have a GridView and in two columns the user has the > > option to send an email by clicking a button (so, I have two buttons: > > SendEmail1 and SendEmail2). When clicking in one of these buttons, the > > email is sent correctly. However, if immediately after send an email > > the user try to send the other one (by clicking the other button), the > > following error message is fired: > > > 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. > > > I remember I had this same error message before but I don't remember > > the context. Does anyone know why this message was fired? What is > > happening? How to fix it? > > > Thanks a lot, > > > Ana
