Displaying number of columns of a Datagrid...

[VB_client]

I am developing a datgrid in vb.net
I gave response.write statement to get the number of columns in the datagrid.

sqlConn = New OracleConnection(State.sConnection)
        sqlConn.Open()
 
        sqlDa = New OracleDataAdapter(sqlsearchquery, sqlConn)
        sqlDa.Fill(sqlDs)
 
        DataGrid1.DataSource = sqlDs
        DataGrid1.DataBind()
        Response.Write("Datagrid Columns:" & DataGrid1.Columns.Count.ToString())

The Datagrid shows 17 columns on display.
But the response.write returns 0 columns. WHY ?

anybody please help on this.