Full Answer
How ASP.NET is different from classic ASP?
ASP or also popularly known as Classic ASP developed by Microsoft is first Server-side scripting engine which is used for dynamic generation of web pages. ASP.NET, on the other hand, is a server-side web framework, open-source, which is designed for the generation of dynamic web pages.
What are the benefits of ASP NET?
What Are The Benefits Of Using ASP.NET?
- Peek: Into the world of Web Applications. ...
- Asp.Net: Robust Developmental Framework. ...
- Benefits of Using ASP.NET. ...
- Bringing Object-Oriented Programming to the Internet. ...
- Web Services: A great Feature of ASP.net. ...
- Extensive Class Library. ...
- Cross-Language Interoperability: Versatile. ...
- Conclusion: ASP.net offers the most flexible development framework. ...
What happened to ASP.NET?
ASP.NET aka "System.Web" is now dead. WebForms is dead (hurrah!) ASP.NET MVC launched in 2008 was built on-top of ASP.NET, but bypassed most of the WebForms infrastructure.
Is ASP.NET the same thing as .net?
It is mostly misunderstood that ASP.NET vs .NET are the same. When a programmer working on these will definitely know that they are not the same. . NET is a software framework or infrastructure which Microsoft developed. ASP.NET, on the other hand, is a web application that is used to build various applications.
What is a postback in ASP.NET?
POSTBACK: Part of ASP.NET's contrived technique for hiding the true stateless nature of the web/HTTP behind a stateful facade.
How to make something updated in HTML?
In the old HTML, the only way to make something updated on the webpage is to resend a new webpage to the client browser. That's what ASP used to do, you have to do this thing call a "PostBack" to send an updated page to the client. In ASP .NET, you don't have to resend the entire webpage.
Can a postback be full?
Postbacks can be either full (refresh the entire page) or partial (in a case where AJAX is employed). A partial page postback will re-render only a part of the page (like a single drop-down list, a table, etc.). Share.
Can you post to a server with a JSON?
Generally we do posts from a FORM element in the body of the HTML. Now everyone says, "oh, a postback is a subsequent request to a page.". But, that's not true.
Do you have to resend an entire webpage in ASP.NET?
In ASP .NET, you don't have to resend the entire webpage. You can now use AJAX, or other ASP.NET controls such that you don't have to resend the entire webpage. If you visit some old website, you would notice that once you click something, the entire page has to be refresh, this is the old ASP.
Can you explain AutoPostBack?
Autopostback is the mechanism by which the page will be posted back to the server automatically based on some events in the web controls. In some of the web controls, the property called auto post back, if set to true, will send the request to the server when an event happens in the control.
What is ViewState?
ViewState is a important client side state management technique. ViewState is used to store user data on page at the time of post back of web page. ViewState does not hold the controls, it holds the values of controls. It does not restore the value to control after page post back.
Why postback is used in asp net?
The IsPostBack property can be used to determine if the page is submitted to itself. When a form is submitted back to the same page that contains it, it's called a post back. ASP.NET provides a property called IsPostBack that is TRUE when the page is being loaded as a result of a post back, and is FALSE otherwise.
Where ViewState value is stored in asp net?
where is view state information stored (server or client)? View state data is stored in the client side (Webpage) in the form of a hidden control (HTML hidden field) named “__VIEWSTATE” and View State Data is stored in Base64 String encoded format which can be further decoded.
What is postback in Javascript?
Postback is a mechanism where the page contents are posted to the server due to an occurrence of an event in a page control. All the webcontrols except Button and ImageButton control will call a javascript function called __doPostBack () to post the form to server.
What are the controls in asp net?
ASP.NET - Server Controls. Controls are small building blocks of the graphical user interface, which include text boxes, buttons, check boxes, list boxes, labels, and numerous other tools. Using these tools, the users can enter data, make selections and indicate their preferences.
What is Pageload in asp net?
Page Load : Perform actions common to all requests, such as setting up a database query. At this point, server controls in the tree are created and initialized, the state is restored, and form controls reflect client-side data. See Handling Inherited Events. Prerender :Perform any updates before the output is rendered.
How to make something updated in HTML?
In the old HTML, the only way to make something updated on the webpage is to resend a new webpage to the client browser. That's what ASP used to do, you have to do this thing call a "PostBack" to send an updated page to the client. In ASP .NET, you don't have to resend the entire webpage.
What is a postback in ASP.NET?
PostBack is the name given to the process of submitting an ASP.NET page to the server for processing. PostBack is done if certain credentials of the page are to be checked against some sources (such as verification of username and password using database).
Can you refresh a website with AJAX?
You can now use AJAX, or other ASP.NET controls such that you don't have to resend the entire webpage. If you visit some old website, you would notice that once you click something, the entire page has to be refresh, this is the old ASP. In most of the modern website, you will notice your browser doesn't have to refresh the entire page, ...
What is page.ispostback in Asp.net
Page.IsPostBack is a Boolean type property of Page class, which indicates whether the page is being loaded for the first time or not! IsPostBack is always false by default.
Use of IsPostBack property in Asp.net
IsPostBack property helps avoiding unnecessary database call every time page gets loaded, thus adds value in application performance improvement.
What is a postback?
PostBack is the name given to the process of submitting all the information that the user is currently working on and send it all back to the server. Postback is actually sending all the information from client to web server, then web server process all those contents and returns back to client. Example:
Where does postback originate?
A postback originates from the client side browser . When the web page and its contents are sent to the web server for processing some information and then, the web server posts the same page back to the client browser. Normally one of the controls on the page will be manipulated by the user (e.g.
Definition
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Examples
The following example shows how to test the value of the IsPostBack property when the page is loaded in order to determine whether the page is being rendered for the first time or is responding to a postback. If the page is being rendered for the first time, the code calls the Page.Validate method.
Remarks
For an explanation of the difference between postbacks and callbacks, see Implementing Client Callbacks Without Postbacks.
Introduction
Understanding The Postback
- PostBack is the name given to the process of submitting an ASP.NET page to the server for processing. PostBack is done if certain credentials of the page are to be checked against some sources (such as verification of username and password using database). This is something that a client machine is not able to accomplish and thus these details have...
Understanding The Autopostback
- AutopostBack is a property which you assign to web controls if you want to post back the page when any event occurs at them.
Understanding The Page.IsPostBack
- Gets a value that indicates whether the page is being rendered for the first time or is being loaded in response to a postback.
- The IsPostBack property can be used to determine if the page is submitted to itself. When a form is submitted back to the same page that contains it, it's called a post back. ASP.NET provides a pro...