选择代码不会影响网页

Question

我有一个用于在数据库中保存事务的Web表单和一个显示上一个操作的按钮，但它没有工作，尽管没有错误消息。

Protected Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click

    Dim nmb As Long = Convert.ToInt32(TextBox1.Text) - 1
    Dim conn As New SqlConnection(ConfigurationManager.ConnectionStrings("dataConnectionString").ConnectionString)
    Dim sql1 As New SqlCommand("select * from internal_trans where numbr = @numbr", conn)
    sql1.Parameters.AddWithValue("@numbr", nmb)

    conn.Open()
    Dim adapter As New SqlDataAdapter
    Dim ds As New DataSet
    adapter.SelectCommand = sql1
    adapter.Fill(ds)
    Me.TextBox1.Text = ds.Tables(0).Rows(0).Item(0).ToString
    Me.TextBox2.Text = ds.Tables(0).Rows(0).Item(1).ToString

    adapter.Dispose()
    sql1.Dispose()
    conn.Close()
End Sub