Can a datagrid display more than one table?

See this picture. I only see table '2' can add more table? how?
conn.Open()
Dim sql(3) As String

sql(0) = "select * from products;"
sql(1) = "select * from orders;"
sql(2) = "select * from orders;"
sql(3) = "select * from orders;"

Dim da As System.Data.OleDb.OleDbDataAdapter
Dim ds As DataSet
Dim dt As DataTable
Dim i As Integer

For i = 0 To sql.GetUpperBound(0)
Try
da = New OleDb.OleDbDataAdapter(sql(i), conn)
Catch e As Exception
MessageBox.Show(e.Message)
End Try
Try
ds = New DataSet("dsTable")
dt = New DataTable(i.ToString)
da.Fill(dt)
'ds.Tables.Add(dt)
ds.Tables.Add(dt)
ds.Merge(dt)
'grd.SetDataBinding(ds, i.ToString)
'MessageBox.Show(ds.Tables(i).TableName)
grd.DataSource = ds
Catch eds As Exception
MessageBox.Show(eds.Message)
End Try
MessageBox.Show(i)
Next
conn.Close()
conn = Nothinglet me answer it myself.

for i = 0 to n
da.Fill(dt)
ds.Merge(dt)
next
datagrid.datasource = ds