SqlDataAdapter is a part of the ADO.NET Data Provider. SqlDataAdapter provides the communication between the Dataset and the Data Source with the help of SqlConnection Object .The SqlDataAdapter works with the DataSet to provide a disconnected data retrieval mechanism.
The SelectCommand property of the SqlDataAdapter is a Command object that retrieves data from the data source. The following program shows the SqlDataAdapter using its SelectCommand property to retrieve the data from the Data Source.
Imports System.Data.SqlClient
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim connetionString As String
Dim connection As SqlConnection
Dim adapter As New SqlDataAdapter
Dim ds As New DataSet
Dim i As Integer
connetionString = "Data Source=ServerName;Initial Catalog=DatabaseName;User ID=UserName;Password=Password"
connection = New SqlConnection(connetionString)
Try
connection.Open()
adapter.SelectCommand = New SqlCommand("Your SQL Statement Here", connection)
adapter.Fill(ds)
connection.Close()
For i = 0 To ds.Tables(0).Rows.Count - 1
MsgBox(ds.Tables(0).Rows(i).Item(1))
Next
Catch ex As Exception
MsgBox(ex.ToString)
End Try
End Sub
End Class