ASP.NET Tutorial/Development/LosFormatter

Материал из .Net Framework эксперт
Версия от 11:56, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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LosFormatter (C#)

<%@ 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">
    <div>
    
    </div>
    </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("<br />");
        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);
    }
}


LosFormatter (VB)

<%@ 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">
    <div>
    
    </div>
    </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("<br />")
        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
Источник — «http://nfex.ru/index.php?title=ASP.NET_Tutorial/Development/LosFormatter&oldid=2614»