Dynamically generating thumbnail images in ASP.NET with C# without affecting initial page load time
Creating thumbnail with ASP.NET with C#. There are several ways to do that but this way I feel much better and efficient and also this doesn’t affect initial page load time.
Introduction
While working for a website or an web application, you must have came across a situation where you need to display a thumbnail images for a larger images. There are several work around for it but I am going to show how to do that in the much better and efficient way, in this way your initial page load time will not be delayed because of the thumbnail images.
Approach
My approach of creating thumbnail is to create an arrays of bytes at run time and specify the img src attribute to it. I will also display NoImage.gif if my no source is being given to the function or any error occurred while dynamically generating thumbnail images.
To do this you will have to create a simple .aspx page that contains nothing but a Page_Load event.
<%@ Page Language="C#" AutoEventWireup="true"
CodeFile="ShowImage.aspx.cs" Inherits="images_ShowImage" %>
<!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>Show Image</title>
</head>
<body>
<form id="form1" runat="server">
<div>
</div>
</form>
</body>
</html>
Just right click to your project and add a .aspx page with default contents mostly similar to above.
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