ASP.NET Tutorial/Development/LosFormatter

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LosFormatter (C#)

   <source lang="csharp">

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">

   <title>Untitled Page</title>

</head> <body>

   <form id="form1" runat="server">
   </form>

</body> </html> File: Default.aspx.cs using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.IO; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; public partial class _Default : System.Web.UI.Page {

   protected void Page_Load(object sender, EventArgs e)
   {
       ViewState["example"] = 5;
       string serializedExample = LosSerializeObject(5);
       Response.Write(serializedExample);
       Response.Write("
"); int example = (int)RetrieveObjectFromViewState(serializedExample); Response.Write(example); } string LosSerializeObject(object obj) { System.Web.UI.LosFormatter los = new System.Web.UI.LosFormatter(); StringWriter writer = new StringWriter(); los.Serialize(writer, obj); return writer.ToString(); } object RetrieveObjectFromViewState(string serializedObject) { System.Web.UI.LosFormatter los = new System.Web.UI.LosFormatter(); return los.Deserialize(serializedObject); }

}</source>


LosFormatter (VB)

   <source lang="csharp">

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">

   <title>Untitled Page</title>

</head> <body>

   <form id="form1" runat="server">
   </form>

</body> </html> File: Default.aspx.vb Imports System.IO Partial Class _Default

   Inherits System.Web.UI.Page
   Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
       ViewState("example") = 5
       Dim serializedExample As String = LosSerializeObject(5)
       Response.Write(serializedExample)
       Response.Write("
") Dim example As Integer = CType(RetrieveObjectFromViewState(serializedExample), Integer) Response.Write(example) End Sub Function LosSerializeObject(ByVal obj As Object) As String Dim los As System.Web.UI.LosFormatter = New System.Web.UI.LosFormatter Dim writer As StringWriter = New StringWriter los.Serialize(writer, obj) Return writer.ToString End Function Function RetrieveObjectFromViewState(ByVal serializedObject As String) As Object Dim los As System.Web.UI.LosFormatter = New System.Web.UI.LosFormatter Return los.Deserialize(serializedObject) End Function

End Class</source>