asp.net vb.net AcceptChanges metodh is necessary

when i change any column in a datatable->datarow it´s necessary use AcceptChanges metodh.
For ex. i need modify a datatable column (quantity), in an existent row, the datatable belongs to a dataset. I don´t need this table to modify database.  In my code i do not use AcceptChanges and all
seems work well.
rflorencioAsked:
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CodeCruiserCommented:
Calling AcceptChanges is similar to calling Update i think. It causes the AcceptChanges method to be executed on each datatable and each datarow within the dataset.

http://msdn.microsoft.com/en-us/library/system.data.dataset.acceptchanges.aspx
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