Skip to content

Latest commit

 

History

History
55 lines (40 loc) · 3.05 KB

update-data-by-using-a-tableadapter.md

File metadata and controls

55 lines (40 loc) · 3.05 KB
title description ms.date ms.topic dev_langs helpviewer_keywords author ms.author manager ms.subservice
Update data with TableAdapter (.NET Framework)
Update data in a dataset with .NET Framework application development in Visual Studio and return data to the database with the ADO.NET TableAdapter.Update method.
11/04/2016
how-to
VB
CSharp
data [Visual Studio], saving
data [Visual Studio], TableAdapters
updating data, TableAdapters
TableAdapters, updating data
data [Visual Studio], updating
saving data
ghogen
ghogen
jmartens
data-tools

Update data by using a TableAdapter in .NET Framework applications

[!INCLUDE Data access tech note]

After the data in your dataset has been modified and validated, you can send the updated data back to a database by calling the Update method of a TableAdapter. The Update method updates a single data table and runs the correct command (INSERT, UPDATE, or DELETE) based on the xref:System.Data.DataRow.RowState%2A of each data row in the table. When a dataset has related tables, Visual Studio generates a TableAdapterManager class that you use to do the updates. The TableAdapterManager class ensures that updates are made in the correct order based on the foreign-key constraints that are defined in the database. When you use data-bound controls, the databinding architecture creates a member variable of the TableAdapterManager class called tableAdapterManager.

Note

When you try to update a data source with the contents of a dataset, you can get errors. To avoid errors, we recommend that you put the code that calls the adapter's Update method inside a try/catch block.

The exact procedure for updating a data source can vary depending on business needs, but includes the following steps:

  1. Call the adapter's Update method in a try/catch block.

  2. If an exception is caught, locate the data row that caused the error.

  3. Reconcile the problem in the data row (programmatically if you can, or by presenting the invalid row to the user for modification), and then try the update again (xref:System.Data.DataRow.HasErrors%2A, xref:System.Data.DataTable.GetErrors%2A).

Save data to a database

Call the Update method of a TableAdapter. Pass the name of the data table that contains the values to be written to the database.

To update a database by using a TableAdapter

  • Enclose the TableAdapter'sUpdate method in a try/catch block. The following example shows how to update the contents of the Customers table in NorthwindDataSet from within a try/catch block .

    C#

    :::code language="csharp" source="../snippets/csharp/VS_Snippets_VBCSharp/VbRaddataSaving/CS/Form3.cs" id="Snippet9":::

    VB

    :::code language="vb" source="../snippets/visualbasic/VS_Snippets_VBCSharp/VbRaddataSaving/VB/Form3.vb" id="Snippet9":::

Related content