1) VB.net is object oriented.

2) VB.net supports exception handling.

3) VB.net is strongly typed.

4) VB. net supports multithreading.

5) VB.net now has console applications.

1. Visual Basic.NET is object oriented but VB 6 is not so.

2. Visual Basic.NET supports multi threading but VB doesnt support.

3. Visual basic.NET supports Managed Code extensions but VB doesnt support.

4. Both Vb and VB.NET support command line programs.

5. Both VB and VB.NET support COM and COM+ applications.

6. VB.NET is strongly typed but VB is not so.

Dim cn As SqlConnection
Dim cmd As SqlCommand
Dim dr As SqlDataReader
Dim table As New DataTable

constructor

initialze the cn object like eg

cn new sqlconnection( server name;database name;uid name;pwd name; )

write it in the button .click event that add the table dynamicaaly created to datagrid

Try
cmd New SqlCommand
cmd.CommandType CommandType.Text
cmd.Connection cn
cmd.CommandText select * from manas
cn.Open()
dr cmd.ExecuteReader()
Dim i As Integer
For i 0 To dr.FieldCount - 1
table.Columns.Add(i)
Next
Dim row As DataRow
While dr.Read()
row table.NewRow()
For i 0 To dr.FieldCount - 1
row(i) dr(i)
Next
table.Rows.Add(row)
End While
DataGrid1.DataSource table
Catch ex As Exception
MsgBox(ex.Message %26 ex.StackTrace)
Finally
cn.Close()
dr.Close()
End Try