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12-Mar-2020 22:08

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You must explicitly set the commands before calling event and setting the Status to Skip Current Row. NVar Char, 15, "Category Name") Dim parameter As Sql Parameter = _ adapter.

For more information, see Merging Data Set Contents and Handling Data Adapter Events.

Select Command = New Ole Db Command( _ query String, connection) Dim builder As Ole Db Command Builder = _ New Ole Db Command Builder(adapter) adapter.

Fill(data Set) ' Code to modify the data in the Data Set here. Update(data Set) End Using Return data Set End Function The update is performed on a by-row basis.

Calling the Accept Changes method or Accept Changes method will commit all changes in the Data Set or Data Table.

If either of these methods are called before the Update method is called, no changes will be committed when the Update method is called, unless further changes have been made since Accept Changes or Accept Changes was called.

Depending on the type of change, the command template executes to propagate the modified row to the data source.This setting indicates that the value of the parameter is not set manually, but is taken from the particular column in the currently processed row.encounters a change to a Data Row, it uses the Insert Command, Update Command, or Delete Command to process the change. Rows(0) category Row("Category Name") = "New Beverages" adapter. Write Line("Rows after update.") Dim row As Data Row For Each row In category Table. Write Line(": ", row(0), row(1)) Next End Using End Sub either by returning the auto-increment value as an output parameter of a stored procedure and mapping that to a column in a table, by returning the auto-increment value in the first row of a result set returned by a stored procedure or SQL statement, or by using the are sent to the data source is important. The Update then refreshes the row using the value of the Updated Row Source property. After any data is loaded back into the Data Set, the On Row Updated event is raised, allowing the user to inspect the reconciled Data Set row and any output parameters returned by the command.

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After a row updates successfully, the changes to that row are accepted.

So I'm only ever locking in the Save To Database thread long enough to get the changes from the Data Table, this allows the Main Thread to process additional changes to the Data Set more efficiently.