VWD 2008 Express. Visual Basic.
Please bear with me as I explain. I have a page I use to update a student's personal and grade information. I use a formview control to enter and update a students personal information. I use a gridview control to enter and update the student's grades. When the user wants to make edits to the data, they make the changes in the formview and the gridview, then press a "Save" button, which runs code behind that reads the formview and gridview data, builds two SQL UPDATE statements, then performs the update on two SQL tables (the Students table and the Grades table). This seems to work fine in most cases.
I have had students reporting that at times segments of the student grades are lost when they make updates. For instance, the student has 180 grades and grade dates recorded, thee user makes some updates on the end of the student's grade record, saves the changes, then goes back later and finds that a large contiguous block of previously entered grades and grade dates have been nulled out. One user said this happened when they were on the student record and they hit the "back" arrow in the browser, then hit the forward arrow and saved the student record. Can anyone think of a circumstance (like with a back arrow and fo
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