What is the difference between Server.Transfer and Response.Redirect?

Server.Transfer page processing transfers from one page to the other page without making a round-trip back to the client’s browser.  This provides a faster response with a little less overhead on the server.  The clients url history list or current url Server does not update in case of Server.Transfer.

Response.Redirect is used to redirect the user’s browser to another page or site.  It performs trip back to the client where the client’s browser is redirected to the new page.  The user’s browser history list is updated to reflect the new address.

In which event of page cycle is the ViewState available?

After the Init() and before the Page_Load().

Can we have a web application running without web.Config file?

Yes

Where the viewstate is stored after the page postback?

ViewState is stored in a hidden field on the page at client side.  ViewState is transported to the client and back to the server, and is not stored on the server or any other external source.

How long the items in ViewState exists?

They exist for the life of the current page.

Where the viewstate is stored after the page postback?

ViewState is stored in a hidden field on the page at client side.
ViewState is transported to the client and back to the server, and is not stored on the server or any other external source.

What is ViewState?

ViewState is used to retain the state of server-side objects between page post backs.

What are the different validators in ASP.NET?

1. Required field Validator
2. Range  Validator
3. Compare Validator
4. Custom Validator
5. Regular expression Validator
6. Summary Validator

What is the difference between Server.Transfer and Response.Redirect?

In Server.Transfer page processing transfers from one page to the other page without making a round-trip back to the client’s browser.  This provides a faster response with a little less overhead on the server.  The clients url history list or current url Server does not update in case of Server.Transfer.

Response.Redirect is used to redirect the user’s browser to another page or site.  It performs trip back to the client where the client’s browser is redirected to the new page.  The user’s browser history list is updated to reflect the new address.

Difference Between GridView and DataGrid and ListView

GridView, DataGrid and ListView Data-bound controls are used to display and modify data in your Asp.Net web application. These controls also contains others Asp.Net controls like as Label, TextBox, DropdownList etc. into a single layout. In this article, I am going to expose the difference among these three.

Difference between GridView and DataGrid

GridView

DataGrid

It was introduced with Asp.Net 2.0.

It was introduced with Asp.Net 1.0.

Built-in supports for Paging and Sorting.

For sorting you need to handle SortCommand event and rebind grid required and for paging you need to handle the PageIndexChanged event and rebind grid required.

Built-in supports for Update and Delete operations.

Need to write code for implementing Update and Delete operations.

Supports auto format or style features.

This features is not supported.

Performance is slow as compared to DataGrid

Performance is fast as compared to GridView.

Difference between ListView and GridView

ListView

GridView

It was introduced with Asp.Net 3.5.

It was introduced with Asp.Net 2.0.

Template driven.

Rendered as Table.

Built-in supports for Data grouping.

Need to write custom code.

Built-in supports for Insert operation.

Need to write custom code.

Provides flexible layout to your data.

Need to write custom code.

Performance is fast is compared to GridView.

Performance is slow as compared to ListView.