View the changes made by the user on the screen c#?
<p>I have a gridview where the user will be able to enter values and save the changes made. I want to show the user the changes he made so far in the grid and traverse him through the changes on next and previous button clicks like how we do in TFS and other compare tools.</p>

<p>Can you please suggest me how can I achieve this compare functionality in c#?
Are there any open source dll's available to do the comparison and traverse through the changes. Any help will be appreciated..Thanks.</p>
