Datagrid not displaying in apsx webpage

[.Net Sports]

I'm trying to display my datagrid (everything is named correctly in the
datagrid headers), but when running , it doesnt show the datagrid on
the aspx webpage:

//////////

//sql statements are on *this* line

SqlCommand objCommand = new SqlCommand(strSQL, objConn);

objConn.Open();
SqlDataReader objReader = objCommand.ExecuteReader();


// assign the DataReader object as the source

// for the "dglvoff" grid


// set the source of the data for the datagrid control and bind it


dglvoff.DataSource = objReader;

da = new SqlDataAdapter(strSQL, objConn);

ds = new DataSet( );

da.Fill(ds);

dglvoff.DataSource = ds;

dglvoff.DataBind();

///////////////
???
..netsports