event is raised when a button listed in the previous table is clicked, it is recommended that you use the events listed in the table for the operation.A Form View Command Event Args object is passed to the event-handling method, which allows you to determine the command name and command argument of the button clicked. But you can skip the Data Source and use the Data Views to handle displaying and updating any collection of objects you want, with a few lines of code. NET Data Views are powerful tools when coupled with a Data Source.Do I have to call the Change Mode() method in the Mode Changing event handler? I can see the mode in the process of changing, because my Mode Changing handler gets called, but then the Mode Changed handler never gets called.- Mark Hi Mark, I had a look at the Form View control's code, and it seems Mode Changed event is only raised when formview is bound to a datasource control (i.e. See it for yourself: private void Handle New() Unfortunatelly, you have to handle Mode Changing event and call Change Mode() manually with e.
NET that allow you to easily create websites for working with the create, read, update, and delete (CRUD) operations of an entire data model that exists as either a Data Context (such as LINQ to SQL) or an Object Context (such as LINQ to Entities).To complete the lessons in this chapter, you should be familiar with developing applications with Microsoft Visual Studio 2010 by using Microsoft Visual Basic or Microsoft Visual C#.In addition, you should be comfortable with all of the following: REAL WORLD: Mike Snell Not all applications require developers to write custom, abstracted data layers and reusable frameworks.With the Form View (or any of the Data Views), I normally use a Data Source to move data from some data store and into/out of the view.However, the Form View (and the rest of the Data Views) will work just as well with any collection of objects: Lists, Arrays, Array Lists, or whatever collection you want to make available to the user for display and update.New Mode argument: protected void fv_Mode Changing(object sender, Form View Mode Event Args e) Done.-- Milosz "Mark Olbert" wrote: I'm trying to understand how to respond to mode changing events in a Form View control.They make it easier to build webpages that access, display, manipulate, and save data. You use these controls to configure access to data that you intend to use on a webpage.Using these controls can provide development efficiency when you are building business applications that rely heavily on data. A data source can be a relational database, data stored inside of in-memory objects (such as a Data Set or an Entity Data Model), XML-based data, or data you retrieve via Microsoft Language-Integrated Query (LINQ).This allows you to provide an event-handling method that performs a custom routine whenever this event occurs.Buttons within a Form View control can also invoke some of the built-in functionality of the control.You won't get automatic generation of the Data View's templates and you'll have to write a little code, but from the user's point of view, everything works as if your Data View was tied to a Data Source.So here's how to use a Form View to display—and let the user update -- any collection of objects.In this example, I'm assuming that I'm displaying a set of Customer objects of some kind in a List(of Customer).