In this article we will learn how to upload one or more files from the client browser to a Microsoft Access database using plain ASP.NET. We will not be creating or making use of any commercial or home-made components, instead we will learn to make use of standard ASP.NET HTML controls which are part of ASP.NET 1.0.

If you don't specify the action attribute, it will be ignored as the form is always submitted to the page itself. If method attribute is left out, by default it will be set to method="post". Other attributes like name and if are also automatically assigned by ASP.NET if you don't mention them. Important point to keep in mind here is that an .aspx page can have only one

control.

Category:

ASP.NET > Tips and Tutorials

Various specifications (or formats) are available, but we're mainly going to be focussing on RSS 2.0 - the code should however work with most rss specifications, except the netscape specification (rdf).

While working with file system, sometimes we must list all directories in a folder. This sample shows us how to list all directories in a folder. Source code written in Visual Basic.NET can easily modify to work in an application.

Most browsers support cookies of up to 4096 bytes. Because of this small limit, cookies are best used to store small amounts of data, or better yet, an identifier such as a user ID. The user ID can then be used to identify the user and read user information from a database or other data store.
Browsers also impose limitations on how many cookies your site can store on the user's computer. Most browsers allow only 20 cookies per site; if you try to store more, the oldest cookies are discarded. Some browsers also put an absolute limit, usually 300, on the number of cookies they will accept from all sites combined.
A cookie limitation that you might encounter is that users can set their browser to refuse cookies. If you define a P3P privacy policy and place it in the root of your Web site, more browsers will accept cookies from your site. However, you might have to avoid cookies altogether and use a different mechanism to store user-specific information.
Although cookies can be very useful in your application, the application should not depend on being able to store cookies. Do not use cookies to support critical features. If your application must rely on cookies, you can test to see whether the browser will accept cookies. There are code snippets you can do to check if your client browser has cookies enabled or not. I will explain later about this throughout the article.