C# - Populate DataTable With Records From Database?

This is my GET Method to get my data from my DataTable

Private Function GetData() As PagedDataSource
' Declarations
Dim dt As New DataTable
Dim dr As DataRow
Dim pg As New PagedDataSource

' Add some columns
dt.Columns.Add("Column1")
dt.Columns.Add("Column2")

' Add some test data
For i As Integer = 0 To 10
dr = dt.NewRow
dr("Column1") = i
dr("Column2") = "Some Text " & (i * 5)
dt.Rows.Add(dr)
Next

' Add a DataView from the DataTable to the PagedDataSource
pg.DataSource = dt.DefaultView

' Return the DataTable
Return pg
End Function

It returns the DataTable as "pg"

What changes must I make to this GET method to get the records from a table in my database?

C# examples will also do but would be great to see a reply with my code and then the changes....