What Are the Web Server Controls in Asp Net?


Heather Bennett

Web Server Controls in ASP.NET are essential components that are used to create interactive and dynamic web pages. These controls provide a wide range of functionalities, making it easier for developers to build robust applications. In this article, we will explore the various types of web server controls in ASP.NET and understand how they can be used effectively.

Introduction to Web Server Controls

Web server controls are elements that run on the server and render HTML markup to the browser. Unlike HTML controls, web server controls have a rich set of properties, events, and methods that enable developers to create powerful applications with ease.

Advantages of Using Web Server Controls:

  • They provide a consistent programming model for building web applications.
  • They offer enhanced functionality compared to traditional HTML controls.
  • They support event-driven programming, making it easier to handle user interactions.
  • They enable separation of concerns by allowing designers and developers to work independently.

Types of Web Server Controls

1. Standard Web Server Controls:

The standard web server controls in ASP.NET include basic elements such as buttons, textboxes, labels, checkboxes, radio buttons, and more. These controls are used to accept user input or display information on a web page.


<asp:TextBox ID="txtName" runat="server"></asp:TextBox>
<asp:Button ID="btnSubmit" runat="server" Text="Submit" OnClick="btnSubmit_Click" />

2. Validation Web Server Controls:

Validation web server controls are used to perform client-side and server-side validations. They ensure that users enter valid data into the form before it is submitted. These controls include validation for required fields, email addresses, dates, and more.


<asp:RequiredFieldValidator ID="rfvName" runat="server" ControlToValidate="txtName" ErrorMessage="Name is required"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="revEmail" runat="server" ControlToValidate="txtEmail" ErrorMessage="Invalid email address" ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"></asp:RegularExpressionValidator>

3. Data Web Server Controls:

Data web server controls are used to display and manipulate data from various data sources like databases, XML files, or business objects. These controls include GridView, ListView, Repeater, and more.


<asp:GridView ID="gvEmployees" runat="server" DataSourceID="dsEmployees"></asp:GridView>

4. Navigation Web Server Controls:

Navigation web server controls provide a way to create menus and site navigation elements with ease. These controls include Menu, TreeView, SiteMapPath, and more.


<asp:Menu ID="menuMain" runat="server"></asp:Menu>


In this article, we explored the different types of web server controls in ASP.NET. We discussed how these controls offer enhanced functionality, event-driven programming, and separation of concerns. By utilizing web server controls effectively, developers can create interactive and dynamic web applications that provide an excellent user experience.

By leveraging the power of web server controls, developers can build robust applications in ASP.NET with ease. It’s essential to understand the various types of controls available and how they can be used to meet specific requirements. So go ahead, explore these controls, and enhance your ASP.NET development skills!

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