Data Not cant see in database even insert query runs perfect.

Hi all

i made one window base application in VS2008 (VB.net).
i made one simple code where i can insert data.and after inserting i can see that data on grid.when i am inserting data insert query runs perfect.after that for debugging purpose i fire select query and get result in dataset and its show data too.but when go into database my inserted data not showing there.

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim con_str As String = "Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Database1.mdf;Integrated Security=True;User Instance=True"
Dim con As SqlConnection = New SqlConnection(con_str)
Dim cmd, cmd2 As SqlCommand
Dim adp As New SqlDataAdapter
Dim ds As New DataSet

With adp
.SelectCommand = New SqlCommand
With .SelectCommand
.CommandType = CommandType.StoredProcedure
.CommandText = "test_insert"
If con.State = ConnectionState.Closed Then
con.Open()

End If
.Parameters.Add("cust_name", SqlDbType.VarChar).Value = "hello"
.Connection = con
End With
.Fill(ds, "insert")
End With


With adp
.SelectCommand = New SqlCommand
With .SelectCommand
.CommandType = CommandType.StoredProcedure
.CommandText = "test_select"
If con.State = ConnectionState.Closed Then
con.Open()

End If
.Connection = con
End With
.Fill(ds, "select")
End With





End Sub
End Class


Table test
cust_id numeric(18, 0)
cust_name varchar(50)


My Store Procedures

ALTER PROCEDURE test_insert
    @cust_name varchar(50)
AS
    insert into test(cust_name) values (@cust_name)
    RETURN

ALTER PROCEDURE test_select
AS
    select * from test
    RETURN

TY IN ADVANCE