Updating database with datagrid

15-Dec-2019 00:50 by 2 Comments

Updating database with datagrid - Sex dating in northern virginia

For the latest documentation on Visual Studio 2017, see Save data back to the database on docs. If you modify that data, it's a good practice to save those changes back to the database.You do this in one of three ways: 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.

The first step is to update the dataset with new records, changed records, or deleted records.If you intend to update an underlying data source later, you must use the methods on the Data Table.Data Row Collection property when adding or removing rows.Additionally, extra columns in the source dataset are added to the target dataset.Merging datasets is useful when you have a local dataset and you get a second dataset from another application.This means that if you try to update the original data source with the target dataset, it might not be able to find the original row to update.

You can prevent a concurrency violation by filling another dataset with the updated records from the data source and then performing a merge to prevent a concurrency violation.

Information about the changes in a dataset is maintained in two ways: by flagging rows that indicate that they have changed (Row State), and by keeping multiple copies of a record (Data Row Version).

By using this information, processes can determine what has changed in the dataset and can send appropriate updates to the data source.

The Row State property of a Data Row object is a value that provides information about the status of a particular row of data.

The following table details the possible values of the Data Row State enumeration: The row has been created but is not part of any Data Row Collection.

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

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