The RequiredFieldValidator control ensures that the user does not skip an entry. The control fails validation if the value it contains does not change from its initial value when validation is performed. If all the fields in the page are valid, the page is valid.

dotnetcaptcha is an ASP.NET web component that generates captcha images to help prevent automated completion and submission of web forms. dotnetcaptcha can generate multiple types of captcha images. All the necessary validation of captcha codes are supported within the component and exposed to the programmer. The licensed version gives a royalty free distribution of dotnetcaptcha

Single Requried Field Validator is a validation control, you can use only one validation to control all the fields in your page. You can Select the requried fields from a list and it'll be colored if the user left it blank

UserEnginePro.NET is a simple, adjustable, well commented User Signup and Authentication system. It contains user signup, login, forgotten password, and edit user account functionality and also an administrative area which allows queries such as users by country, date joined, opt-in choices, etc. A new feature is email address verification where a user is required to click on a verification link that is emailed to them before their account becomes active. All data is stored in an MS Access 2000/XP or SQL Server 2000 database. The application is written in ASP.NET (C#) and the full source code is supplied upon purchase, which is easily configured by following the comprehensive online help & setup guides. Additional web pages on your website are easily secured by adding a one line include which checks to see if a user is logged in or not. The system is also fully template driven so as to blend in with your existing style.

dotnetcaptcha is an ASP.NET web component that generates captcha images to help prevent automated completion and submission of web forms. dotnetcaptcha can generate multiple types of captcha images. All the necessary validation of captcha codes are supported within the component and exposed to the programmer. The licensed version gives a royalty free distribution of dotnetcaptcha

Can process Form data into an email response for ASP.NET pages, classic HTML pages or any other web page that uses the form element.Offers both a HttpHandler for generic posting, and a n ASP.NET Server Control to provide full integration in the aspx page process.

A robust Form Builder that enables you to create a wide range of Web forms instantly. Create Web forms easily with the Form Wizard, and customize the logic for how your administrative users manage form submissions. When you build a form with Formulator.NET, a full-featured administrative system is already in place to help you manage submissions, complete with an easy-to-use interface for viewing, modifying and performing other tasks on.

ASP.net Web Server Control for adding visual color selection to your web site or web application in just a few lines of code or a simple drag & drop with VisualStudio.net. allows you to have users easily select a color from a beautiful graphic pop up menu without having to know RGB values for colors, Full 16 million colors, Full Studio designer support, Real time preview on any html client page element, Inclusion of the code more than once on a single page is no problem, Compatible with today's popular web browsers, Fine tunning, Smooth, Simple, Color wheel, Hex or RGB values ... It is the premiere color picking tool for ASP.NET web developers.

KUpload+ is ASP.Net File Upload component with Pure HTML Progress bar. KUpload+ allows great control over the upload of huge files (Up to 2GB) from client browser to web server through HTTP. KUpload+ operates on totally deferent Upload technology from standard ASP.Net Classes. KUpload+ do not utilizes the server memory rather it usage disk memory to store uploaded files. This means for large upload, KUpload+ utilizes small amount of server memory. Hence new technology provides ultimate flexibility on the upload size.

UltimateCallback is an ASP.NET server control to provide AJAX callback functionality in your web applications. It allows you to make web pages more responsive by exchanging data with the server behind the scenes. Every time the user initiates a callback request UltimateCallback control refreshes only its own contents instead of reloading the entire web page as in the case of a regular postback to server. Some of the key features are: * AJAX - AJAX (Asynchronous JavaScript And XML) * Drag-Drop * Callback Result * Callback Error * Loading Display * Enable Caching * Save State * Auto Callback * Override Output * Down Level Browser Support * Client-Side API * Server-Side API