What is the purpose of the @Register directive?

Vaibhav Kothia May 29, 2023 0 Comments

The @Register directive is used to register custom server control components in an ASP.NET page. This directive tells the compiler which control components are used in the page. For example, if we have a custom server control called “MyControl” and we want to use it in an ASP.NET page, we can add the following directive:

@Register TagPrefix=”MyControls” TagName=”MyControl” Src=”MyControl.ascx”

This directive will register the custom server control component with the tag prefix “MyControls” and the tag name “MyControl”, and the source file for the component is “MyControl.ascx”.

What is the difference between a web control and a user control?

Vaibhav Kothia May 29, 2023 0 Comments

A web control is a type of control that is used to create user interfaces for web applications. It is a server-side control that runs on the server and is rendered as HTML on the client. Examples of web controls include buttons, text boxes, labels, and drop-down lists.

A user control is a type of control that is used to create user interfaces for desktop applications. It is a client-side control that runs on the client and is rendered as a native control on the user’s device. Examples of user controls include buttons, text boxes, labels, and checkboxes.

What is the difference between a web form and a web service?

Vaibhav Kothia May 29, 2023 0 Comments

A web form is a page on a website that contains fields for user input. It is typically used to capture user information, such as contact details, preferences, or other data that can be used to customize the user experience. An example of a web form would be a registration page, where the user must enter their details in order to create an account.

A web service, on the other hand, is an application programming interface (API) that allows two applications to communicate with each other over the web. It is typically used to transfer data between two different systems, such as a database and a web application. An example of a web service would be an API that allows a web application to access data from a database.

What is the role of the Global.asax file?

Vaibhav Kothia May 29, 2023 0 Comments

The Global.asax file, also known as the ASP.NET application file, is used to create application and session-level events and objects in an ASP.NET Web application. It is an optional file that contains code for responding to application-level events, such as Application_Start, Application_End, Session_Start, Session_End, and Application_Error.

Example:

void Application_Start(object sender, EventArgs e)
{
// Code that runs on application startup
}

void Application_End(object sender, EventArgs e)
{
// Code that runs on application shutdown
}

void Application_Error(object sender, EventArgs e)
{
// Code that runs when an unhandled error occurs
}

void Session_Start(object sender, EventArgs e)
{
// Code that runs when a new session is started
}

void Session_End(object sender, EventArgs e)
{
// Code that runs when a session ends.
// Note: The Session_End event is raised only when the sessionstate mode
// is set to InProc in the Web.config file. If session mode is set to StateServer
// or SQLServer, the event is not raised.
}

What is the difference between ASP and ASP.NET?

Vaibhav Kothia May 29, 2023 0 Comments

ASP (Active Server Pages) is a scripting language used to create dynamic web pages, while ASP.NET is a web application framework developed by Microsoft for building dynamic web sites, web applications, and web services.

Example:

ASP:

ASP.NET:

protected void btnSubmit_Click(object sender, EventArgs e)
{
lblName.Text = “Hello ” + lblName.Text;
}

What are the advantages of ASP.NET?

Vaibhav Kothia May 29, 2023 0 Comments

1. Easy to Use: ASP.NET makes it easy to build powerful web applications. It provides a comprehensive set of features that enable rapid development and deployment of web applications. For example, Visual Studio, the integrated development environment (IDE) for ASP.NET, provides a graphical user interface (GUI) that can be used to quickly create web applications.

2. Scalability: ASP.NET is designed to scale up to meet the demands of large web applications. It is also designed to be highly reliable, and can handle large amounts of traffic with minimal impact on performance.

3. Security: ASP.NET provides a secure environment for web applications. It includes built-in authentication and authorization mechanisms, as well as data encryption and other security features.

4. Performance: ASP.NET is designed to be fast and efficient. It uses a just-in-time (JIT) compiler to compile code on the fly, and it can take advantage of server-side caching to improve performance.

5. Cross-Platform Support: ASP.NET can be deployed on a variety of operating systems, including Windows, Linux, and Mac OS X. It also supports a variety of web browsers, including Internet Explorer, Firefox, Safari, and Chrome.

What is ASP.NET?

Vaibhav Kothia May 29, 2023 0 Comments

ASP.NET is a web application framework developed and marketed by Microsoft. It is used to create dynamic web pages, web services, and web applications. It is an open source server-side web application framework that is designed for web development to produce dynamic web pages. It is built on the Common Language Runtime (CLR), allowing developers to write ASP.NET code using any supported .NET language.

Example:

The following example shows a simple ASP.NET page that displays a message to the user:

Hello World!

This is my first ASP.NET page.

What is the difference between authentication and authorization?

Vaibhav Kothia May 27, 2023 0 Comments

Authentication is the process of verifying the identity of a user or system. An example of authentication is when a user logs into a website using a username and password.

Authorization is the process of granting access to a user or system based on their authenticated identity. An example of authorization is when a user is granted access to certain areas of a website based on their authenticated identity.

What is the use of the Web.config file?

Vaibhav Kothia May 27, 2023 0 Comments

The Web.config file is an XML document that is used to store configuration information for web applications. It contains settings such as database connection strings, application settings, authentication and authorization settings, and custom error messages.

Example:

What is the Global.asax file used for?

Vaibhav Kothia May 27, 2023 0 Comments

The Global.asax file, also known as the ASP.NET application file, is an optional file used by ASP.NET applications to respond to application-level events, such as Application_Start, Application_End, Session_Start, and Session_End. This file is used to define application-level and session-level events, as well as to configure the application.

Example:

void Application_Start(object sender, EventArgs e)
{
// Code that runs on application startup
}
void Application_End(object sender, EventArgs e)
{
// Code that runs on application shutdown
}
void Session_Start(object sender, EventArgs e)
{
// Code that runs when a new session is started
}
void Session_End(object sender, EventArgs e)
{
// Code that runs when a session ends
}