Código:
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If Not Page.IsPostBack
Dim conex As SqlConnection = Session("Conexion")
Dim consultaSQL As String = "SELECT ........"
Dim da As New SqlDataAdapter(consultaSQL, conex)
Dim ds As New DataSet
da.Fill(ds, "Tabla")
Dim dv As New DataView(ds.Tables("Tabla"))
DataGridPacientes.DataSource = dv
DataGridPacientes.DataBind()
End If
End Sub
Creo que así es en VB.Net yo utilizo C#. Sería cosa de que probaras