What is Weblife lifecycle event?
Every request for a page made from a web server causes a chain of events at the server. These events, from beginning to end, constitute the life cycle of the page and all its components. The life cycle begins with a request for the page, which causes the server to load it.
What are the different events which fire ASP.NET page life cycle?
ASP.NET Life Cycle Events
| Page Event | Typical Use |
|---|---|
| Control events | This event is used to handle specific control events such as Button control’ Click event. |
| LoadComplete | This event occurs at the end of the event-handling stage. We can use this event for tasks that require all other controls on the page be loaded. |
What are the stages of ASP life cycle explain?
When an ASP.NET page runs, the page goes through a life cycle in which it performs a series of processing steps. These include initialization, instantiating controls, restoring and maintaining state, running event handler code, and rendering.
What is the last event of web page life cycle?
UnLoad – The UnLoad phase is the last phase of the page life cycle. It raises the UnLoad event for all controls recursively and lastly for the page itself. Final cleanup is done and all resources and references, such as database connections, are freed.
What are the steps involved in the life cycle of a Windows Form?
Load: This event occurs before a form is displayed for the first time. VisibleChanged: This event occurs when the Visible property value changes. Activated: This event occurs when the form is activated in code or by the user. Shown: This event occurs whenever the form is first displayed.
How do you handle validation in MVC?
In code we need to check the IsValid property of the ModelState object. If there is a validation error in any of the input fields then the IsValid property is set to false. If all the fields are satisfied then the IsValid property is set to true. Depending upon the value of the property, we need to write the code.
What is MVC pipeline?
ASP.NET MVC is an open source framework built on the top of Microsoft . NET Framework to develop the web application that enables a clean separation of code. ASP.NET MVC framework is the most customizable and extensible platform shipped by Microsoft. In this article, you will learn the detailed pipeline of ASP.NET MVC.
How does the page life cycle work in ASP.NET?
The Page object calls the OnLoad method on the Page object, and then recursively does the same for each child control until the page and all controls are loaded. The Load event of individual controls occurs after the Load event of the page. Use the OnLoad event method to set properties in controls and to establish database connections.
When does the init event of individual controls occur?
The Init event of individual controls occurs before the Init event of the page. Use this event to read or initialize control properties. Raised at the end of the page’s initialization stage. Only one operation takes place between the Init and InitComplete events: tracking of view state changes is turned on.
What happens at the end of the page life cycle?
During the rendering stage, the page calls the Render method for each control, providing a text writer that writes its output to the OutputStream object of the page’s Response property. The Unload event is raised after the page has been fully rendered, sent to the client, and is ready to be discarded.
How are control events handled in ASP.NET?
For control events, you bind the event handler to the event, either declaratively using attributes such as onclick, or in code. Pages also support automatic event wire-up, meaning that ASP.NET looks for methods with particular names and automatically runs those methods when certain events are raised.