Updating access database in vb net


08-Jan-2016 10:37

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When you data bind dataset tables to controls on a Windows Form or XAML page, the data binding architecture does all the work for you.If you're familiar with Table Adapters, you can jump directly to one of these topics: Updating a data source is a two-step process.If you call the Remove At collection on the Rows property, the deletion won't be communicated back to the database. When you merge datasets, new records in the source dataset are added to the target dataset.The first step is to update the dataset with new records, changed records, or deleted records.If your application never sends those changes back to the data source, then you are finished with the update.If you do send the changes back to the database, then a second step is required.If you aren't using data-bound controls, then you have to manually call the Update method of the same Table Adapter (or data adapter) that you used to populate the dataset.However, you can also use different adapters, for example, to move data from one data source to another or to update multiple data sources.

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Data Row Collection property when adding or removing rows.

Those methods perform the change tracking that's needed for updating the data source.

Two-stage update process and the role of the Data Row Version in a successful update A dataset contains collections of tables, which contain a collections of rows.

If you intend to update an underlying data source later, you must use the methods on the Data Table.