Technical Interview Questions » ASP.NET Interview Questions

What is the different between ASP.NET and VB.NET?

Mon, 07 May 2007 02:51:00 +0000

ASP.Net is an “environment”, and VB.Net is a programming language. You can write ASP.Net pages (called “Web Forms” by Microsoft) using VB.Net (or C#, or J# or Managed C++ or any one of a number of .Net compatible languages).
Confusingly, there is an IDE that Microsoft markets called VB.Net, which allows you to write and compile [...]

How can we create custom controls in ASP.NET?

Sun, 29 Apr 2007 01:27:00 +0000

Custom Controls can be created in either of the following 3 methods.
1. Creating as a composite control : This method uses and combines the existing controls to give a custom functionality which can be used across different projects by adding to the control library. This can provide for event bubbling from child controls to the [...]

How many types of validation controls are provided by ASP.NET ?

Sun, 29 Apr 2007 01:26:00 +0000

RequiredField Validator Control,Range Validator Control, RegularExpression Validator Control,Custom Validator Control and Validation Summary Control are provided by ASP.NET.

Can you explain what is “AutoPostBack” feature in ASP.NET ?

Sun, 29 Apr 2007 01:26:00 +0000

AutoPostBack is built into the form-based server controls, and when enabled, automatically posts the page back to the server whenever the value of the control in question is changed.

How can you enable automatic paging in DataGrid ?

Sun, 29 Apr 2007 01:23:00 +0000

Using the Built-In Paging Controls
To use default paging, you set properties to enable paging, set the page size, and specify the style of the paging controls. Paging controls are LinkButton controls. You can choose from these types: Next and previous buttons. The button captions can be any text you want. Page numbers, which allow users [...]

What is the difference between login controls and Forms authentication?

Sun, 29 Apr 2007 01:22:00 +0000

Login controls are an easy way to implement Forms authentication without having to write any code. For example, the Login control performs the same functions you would normally perform when using the FormsAuthentication class—prompt for user credentials, validate them, and issue the authentication ticket—but with all the functionality wrapped in a control that you can [...]

What is Tracing in ASP.NET ?

Sun, 29 Apr 2007 01:21:00 +0000

ASP.NET introduces new functionality that allows you to write debug statements, directly in your code, without having to remove them from your application when it is deployed to production servers. Called tracing, this feature allows you to write variables or structures in a page, assert whether a condition is met, or simply trace through the [...]

How do we enable tracing ?

Sun, 29 Apr 2007 01:20:00 +0000

Instead of enabling tracing for individual pages, you can enable it for your entire application. In that case, every page in your application displays trace information. Application tracing is useful when you are developing an application because you can easily enable it and disable it without editing individual pages. When your application is complete, you [...]

What exactly happens when ASPX page is requested from Browser?

Sun, 29 Apr 2007 01:14:00 +0000

At its core, the ASP.NET execution engine compiles the page into a class, which derives from the code behind class (which in turn derives directly or indirectly from the Page class). Then it injects the newly created class into the execution environment, instantiates it, and executes it. ASP.NET, on the other hand, can accept code [...]

How do you deploy an ASP.NET application?

Sun, 29 Apr 2007 01:09:00 +0000

You can deploy an ASP.NET Web application using any one of the following three deployment options.1.XCOPY Deployment
2.Using the Copy Project option in VS .NET
3.Deployment using VS.NET installer