As you saw in the Data Table, Data Row, and Data Column sections at the beginning of this article, you can use the Delete method of a Data Row to delete a row.

The Add New method of the Data Table adds a row to a Data Table.

To String(); Ole Db Data Adapter d Adapter = new Ole Db Data Adapter(query, conn String); Ole Db Command Builder delete Builder = new Ole Db Command Builder(d Adapter); Data Table delete Table = new Data Table(); d Adapter.

updating the database using dataset and dataadapter-90

I'm sure there is an extremely simple reason that this one line isn't working, but it has evaded for the past week, so I'm hoping someone else will notice my fault.

I have been working on this project for several weeks to a month.

This particular form Edits or Deletes rows from the Database using a Data Adapter, Dataset, and Command Builder.

It has been working fine, until I switched computers.

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.

USE [master] GO CREATE DATABASE [My School] GO USE [My School] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].[Course]( [Course ID] [nvarchar](10) NOT NULL, [Year] [smallint] NOT NULL, [Title] [nvarchar](100) NOT NULL, [Credits] [int] NOT NULL, [Department ID] [int] NOT NULL, CONSTRAINT [PK_Course] PRIMARY KEY CLUSTERED ( [Course ID] ASC, [Year] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].[Department]( [Department ID] [int] IDENTITY(1,1) NOT NULL, [Name] [nvarchar](50) NOT NULL, [Budget] [money] NOT NULL, [Start Date] [datetime] NOT NULL, [Administrator] [int] NULL, CONSTRAINT [PK_Department] PRIMARY KEY CLUSTERED ( [Department ID] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] GO INSERT [dbo].[Course] ([Course ID], [Year], [Title], [Credits], [Department ID]) VALUES (N'C1045', 2012, N'Calculus', 4, 7) INSERT [dbo].[Course] ([Course ID], [Year], [Title], [Credits], [Department ID]) VALUES (N'C1061', 2012, N'Physics', 4, 1) INSERT [dbo].[Course] ([Course ID], [Year], [Title], [Credits], [Department ID]) VALUES (N'C2021', 2012, N'Composition', 3, 2) INSERT [dbo].[Course] ([Course ID], [Year], [Title], [Credits], [Department ID]) VALUES (N'C2042', 2012, N'Literature', 4, 2) SET IDENTITY_INSERT [dbo].[Department] ON INSERT [dbo].[Department] ([Department ID], [Name], [Budget], [Start Date], [Administrator]) VALUES (1, N'Engineering', 350000.0000, CAST(0x0000999C00000000 AS Date Time), 2) INSERT [dbo].[Department] ([Department ID], [Name], [Budget], [Start Date], [Administrator]) VALUES (2, N'English', 120000.0000, CAST(0x0000999C00000000 AS Date Time), 6) INSERT [dbo].[Department] ([Department ID], [Name], [Budget], [Start Date], [Administrator]) VALUES (4, N'Economics', 200000.0000, CAST(0x0000999C00000000 AS Date Time), 4) INSERT [dbo].[Department] ([Department ID], [Name], [Budget], [Start Date], [Administrator]) VALUES (7, N'Mathematics', 250024.0000, CAST(0x0000999C00000000 AS Date Time), 3) SET IDENTITY_INSERT [dbo].[Department] OFF ALTER TABLE [dbo].[Course] WITH CHECK ADD CONSTRAINT [FK_Course_Department] FOREIGN KEY([Department ID]) REFERENCES [dbo].[Department] ([Department ID]) GO ALTER TABLE [dbo].[Course] CHECK CONSTRAINT [FK_Course_Department] GO using System; using System.

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.

To insert, update, and delete data using a Data Adapter, you create an Ole Db Command object with INSERT, UPDATE, and DELETE statements and set the Insert Command, Update Command, and Delete Command properties of the data adapter to Ole Db Command.

You can avoid building Command objects manually by using Command Builder.

This allows you to maximize the performance of your ADO. For example, if a primary key value for an existing row is updated, and a new row has been added with the new primary key value as a foreign key, it is important to process the update before the insert. By specifying a subset of rows to be updated, you can control the order in which inserts, updates, and deletes are processed.