Imports System
Imports System.Data
Imports System.Data.SqlClient

Module Module1

    Sub Main()
        Dim sConnectionString As String
        ' Modify the following code to correctly connect to your SQL Server.
        sConnectionString = "Password=StrongPassword;User ID=UserName;" & _
                            "Initial Catalog=pubs;" & _
                            "Data Source=(local)"

        Dim objConn As New SqlConnection(sConnectionString)
        objConn.Open()

        ' Create an instance of a DataAdapter.
        Dim daAuthors As _
            New SqlDataAdapter("Select * From Authors", objConn)

        ' Create an instance of a DataSet, and retrieve data from the Authors table.
        Dim dsPubs As New DataSet("Pubs")
        daAuthors.FillSchema(dsPubs, SchemaType.Source, "Authors")
        daAuthors.Fill(dsPubs, "Authors")

        '*****************
        'BEGIN ADD CODE 
        ' Create a new instance of a DataTable
        Dim tblAuthors As DataTable
        tblAuthors = dsPubs.Tables("Authors")

        Dim drCurrent As DataRow
        ' Obtain a new DataRow object from the DataTable.
        drCurrent = tblAuthors.NewRow()

        ' Set the DataRow field values as necessary.
        drCurrent("au_id") = "993-21-3427"
        drCurrent("au_fname") = "George"
        drCurrent("au_lname") = "Johnson"
        drCurrent("phone") = "800 226-0752"
        drCurrent("address") = "1956 Arlington Pl."
        drCurrent("city") = "Winnipeg"
        drCurrent("state") = "MB"
        drCurrent("contract") = 1

        'Pass that new object into the Add method of the DataTable.Rows collection.
        tblAuthors.Rows.Add(drCurrent)
        MsgBox("Add was successful.")

        'END ADD CODE    
        '*****************
        'BEGIN EDIT CODE

        drCurrent = tblAuthors.Rows.Find("213-46-8915")
        drCurrent.BeginEdit()
        drCurrent("phone") = "342" & drCurrent("phone").ToString.Substring(3)
        drCurrent.EndEdit()
        MsgBox("Record edited successfully")

        'END EDIT CODE   
        '*****************
        'BEGIN SEND CHANGES TO SQL SERVER

        Dim objCommandBuilder As New SqlCommandBuilder(daAuthors)
        daAuthors.Update(dsPubs, "Authors")
        MsgBox("SQL Server updated successfully" & chr(13) & "Check Server explorer to see changes")

        ' END SEND CHANGES TO SQL SERVER 
        '*****************
        'BEGIN DELETE CODE 

        drCurrent = tblAuthors.Rows.Find("993-21-3427")
        drCurrent.Delete()
        MsgBox("Record deleted successfully")

        'END DELETE CODE 
        '*****************
        ' CLEAN UP SQL SERVER
        daAuthors.Update(dsPubs, "Authors")
        MsgBox("SQL Server updated successfully" & Chr(13) & Chr(13) & "Check Server Explorer to see changes")
    End Sub

End Module