I have a simple ASP.NET application. Basically on one web form user enters information and submit button the program calls VFP Stored Procedure and creates a record in a VFP database table. All works well in several locations (different customers).
Yesterday a customer reports the following problem. One of their users upon clicking on Submit got an error or some kind of message (of course they don't remember <g>). And then 138 the same records appeared in the VFP database. Obviously "something" made the OnClick procedure to be executed 138 time.
Is there a known trojan/virus/warm that might do that?
Anything else that you might suggest to investigate?
Your best bet is to put some sort of generic error trapping so you know something wrong is happening. In most cases you want to put your code in the Application_Error event handler of the Global.asax file. There is plenty of information that you can access in that method.
For starters, you can check the sender and e objects sent as parameters. Those can provide some useful information. You can also call Server.GetLastError(). Another thing to do is create a NameValueCollection Object and gather all the environment variables. After you've done all this you can either save to file, log it in the event log, email to yourself, etc...
You'll find this and many other answers that I've posted here at the UT on my blog.
