Datarow rowstate not updating
Datarow rowstate not updating - powered by azdg dating oman
If I don't do anything to the Data Set other than load data normally through Table Adapters everything works fine.
Write Line("Deleted rows:\n"); foreach (Data Column cat Col in cat Table.
For more information, see Merging Data Set Contents and Handling Data Adapter Events.
The following examples demonstrate how to perform updates to modified rows by explicitly setting the Private Sub Adapter Update(By Val connection String As String) Using connection As Sql Connection = New Sql Connection( _ connection String) Dim adapter As Sql Data Adapter = New Sql Data Adapter( _ "SELECT Category ID, Category Name FROM dbo. Update Command = New Sql Command( _ "UPDATE Categories SET Category Name = @Category Name " & _ "WHERE Category ID = @Category ID", connection) adapter.
If you are updating two or more related tables, then you should include all the update logic within a transaction.
A transaction is a process that assures all related changes to a database are successful before committing any changes.
NET manages rows in tables using row states and versions.
A row state indicates the status of a row; row versions maintain the values stored in a row as it is modified, including current, original, and default values.
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.
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.
The concept is great, but difficult to implement in the Data Set we use (Visual Studio 2008).