Some way to modify rendered output html
29/01/2010 Leave a comment
Another way to use a global variable in your page as overriding render method of your form. Ok its not a good and suggested way and also have performance problems but strangely it will work sometimes and also provide writing less code in html side.
Our form’s html view:
<%@ Page Language=”C#” AutoEventWireup=”true” CodeBehind=”WebForm1.aspx.cs” Inherits=”MultiLangTest.WebForm1″ %>
<!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></title>
</head>
<body>
<form id=”form1″ runat=”server”>
<div>
$$GlobalVariable
<a href=”http://www.google.com” >$$GlobalVariable</a>
<div title=”$$GlobalVariable” > </div>
<div title=”$$GlobalVariable” > </div>
<div title=”$$GlobalVariable” > </div>
<div title=”$$GlobalVariable” > </div>
<div title=”$$GlobalVariable” > </div>
$$GlobalVariable
<!–
<asp:Label ID = “Label1″ runat=”server”
Text =”<%= You know Its not working with asp:x tags
and also not necessery but sometimes strangely
you want to use this %>” />
than You can do it like this:
–>
<asp:Label ID = “Hello” runat=”server” Text =”$$GlobalVariable” />
</div>
</form>
</body>
</html>
Our form’s codebehind:
public partial class WebForm1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected override void Render(HtmlTextWriter writer)
{
//we will create a memory stream for holding data
using (MemoryStream ms = new MemoryStream())
{
//A streamwriter to write memory
using (StreamWriter sw = new StreamWriter(ms))
{
//this is our html writer.
HtmlTextWriter htmlWriter = new HtmlTextWriter(sw);
//Complete other renders
base.Render(htmlWriter);
htmlWriter.Flush();
//Set memory stream to start position.
ms.Position = 0;
//read the data
using (System.IO.StreamReader _Reader = new System.IO.StreamReader(ms))
{
string txt = _Reader.ReadToEnd();
//replace global variable
txt = txt.Replace("$$GlobalVariable", "Hello World" );
Response.Write(txt);
_Reader.Close();
}
}
}
}
}
Here is the output:
<!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><title>
</title></head>
<body>
<form name=”form1″ method=”post” action=”WebForm1.aspx” id=”form1″>
<div>
<input type=”hidden” name=”__VIEWSTATE” id=”__VIEWSTATE” value=”/wEPDwUKMTg3NjI4NzkzNmRkxS9N0UwBHiMGrNo9vYAKQmdAfAc=” />
</div>
<div>
Hello World
<a href=”http://www.google.com” >Hello World</a>
<div title=”Hello World” > </div>
<div title=”Hello World” > </div>
<div title=”Hello World” > </div>
<div title=”Hello World” > </div>
<div title=”Hello World” > </div>
Hello World
<!–
<span id=”Label1″><%= You know Its not working with asp:x tage
and also not necessery but sometimes strangely
you want to use this %></span>
than You can do it like this:
–>
<span id=”Hello”>Hello World</span>
</div>
</form>
</body>
</html>
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