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DataSet using Code

Posted on 2008-10-07
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Last Modified: 2010-04-23
DataSet using Code
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Question by:JPTenore
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by:Dhaest
ID: 22657429
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Dhaest earned 500 total points
ID: 22657434
A complete example to connect to the database, fill a dataset and loop through that dataset
(console-applicatoin)
Imports System
Imports System.Collections
Imports System.Data
Imports System.IO
Imports System.Xml.Serialization
Imports System.Windows.Forms
Imports System.Data.SqlClient
 
 
Public Class MainClass
    Shared Dim WithEvents con As SqlConnection
 
    Shared Sub Main()
        con = New SqlConnection("Server=(local)\SQLEXPRESS;Initial Catalog=MyDatabase;Integrated Security=SSPI") 
 
        ' Create the command object
        Dim str As String = "SELECT ID, FirstName, LastName FROM Employee"
        Dim cmd As New SqlCommand(str, con)
 
        Dim da As New SqlDataAdapter(cmd)
 
        Dim ds As New DataSet()
 
        da.Fill(ds, "Employee")
 
        Dim dc As DataColumn
        For Each dc In ds.Tables(0).Columns
            Console.Write("{0,15}", dc.ColumnName)
        Next
 
        Console.Write(vbCrLf)
 
        Dim dr As DataRow
        For Each dr In ds.Tables(0).Rows
            Dim i As Integer
            For i = 1 To ds.Tables(0).Columns.Count
                Console.Write("{0,15}", dr(i - 1))
            Next i
            Console.Write(vbCrLf)
        Next
    End Sub
End Class

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