Add new row commandbuilder vb.net

In VB.NET, you can use the CommandBuilder class to generate SQL commands for inserting, updating, and deleting data. To add a new row using CommandBuilder, you can use the InsertCommand property.

Here's an example:

Imports System.Data.SqlClient

' Create a connection to the database
Dim conn As New SqlConnection("Data Source=myserver;Initial Catalog=mydatabase;User ID=myuser;Password=mypassword;")
conn.Open()

' Create a data adapter
Dim da As New SqlDataAdapter("SELECT * FROM mytable", conn)

' Create a command builder
Dim cb As New SqlCommandBuilder(da)

' Add a new row
Dim newRow As DataRow = da.Table.NewRow()
newRow("Column1") = "New value"
newRow("Column2") = "Another new value"
da.Update(newRow)

' Close the connection
conn.Close()

In this example, we create a SqlConnection object to connect to the database, a SqlDataAdapter object to retrieve data from the database, and a SqlCommandBuilder object to generate SQL commands for inserting, updating, and deleting data.

We then create a new row using the NewRow method of the DataTable object returned by the Table property of the SqlDataAdapter object. We set the values of the columns in the new row using the Item property of the DataRow object.

Finally, we call the Update method of the SqlDataAdapter object to insert the new row into the database. The CommandBuilder object generates the necessary SQL command to insert the new row.

Note that the CommandBuilder object generates a SQL command that is specific to the database provider being used (in this case, SQL Server). The generated command will be in the format of the database provider's default SQL dialect.

Also, if you want to add a new row with a specific primary key value, you can use the InsertCommand property of the CommandBuilder object to specify the primary key value. For example:

cb.InsertCommand = "INSERT INTO mytable (Column1, Column2) VALUES (@Column1, @Column2)"
cb.InsertCommand.Parameters.AddWithValue("@Column1", "New value")
cb.InsertCommand.Parameters.AddWithValue("@Column2", "Another new value")
da.Update(newRow)

This will insert a new row into the database with the specified primary key value.