Hi,
As per my understanding you have textbox inside gridview and you made changes in textbox and while moving from one page to another you are loosing the data this is what your problem right?
If this is your problem, my suggestion is rather than bind the gridview based on dataset; store the dataset result into ViewState and bind the gridview using ViewState object,
and while click on next page you can update the data into viewstate and rebind your grid using ViewState object.
If my understanding is wrong, please elaborate your requirement so that we can help you better.
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Give respect to your work, Instead of trying to impress your boss.
N@veen
Blog : http://naveens-dotnet.blogspot.in/