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After you created this thread, you probably received an email message with suggestions for articles to read. If any of them help, then it is possible to search this web site for articles such as that before creating a thread. This web site has many very userful articles. There is also some recommendations listed at the right side of this window. One article that is often not shown in the recommendations is my article
Database Table Update in a DataGridView without Writing Code; I hope it is also helpful.