We are having problems with users using the 'Back' button in their browser.
We have a page called EditInvoiceDistribution
within this page a user may need to edit a text field named "DistAmount" ; This is a numeric field only.
This field could be blank or it could be populated with existing numbers. A user will normally edit this field then they will click a button called 'Update'.
This action calls a page called EditUpdateInvoicedDistribution, which takes the figures from DistAmount and updates it in a couple tables. After the update, the page is immediately redirected to another page - EditVendorInvoice - so the user can see the changes they made.
On with the problem: Occasionally users will click the browsers back button to edit the change again. When they do this it opens the page from before called EditInvoiceDistribution - and the original numeric value appears from before in the "DistAmount" field! - NOT the value they just entered..... so they enter in a different value, click 'Update' etc. etc. This is causing inaccurate data - which we all know can be a serious problem. Does anyone have any suggestions as to how I can prevent this from happening? If code is needed please let me know - there is quite a bit though.