How do I add Page Events for ASP.NET in Visual Studio 2008

Question

This is a bit of a Visual Studio question. I feel with all the helpful Intellisense there should be something to assist but I can't seem to find it.

I made a page with a codebehind in ASP.NET C# in VS2008 and it autogenerates a PageLoad event method, of course. Well, what if I want to add methods for more events besides PageLoad? I would think there would be some list on the Foo.aspx page of possible method event handlers to add. Aren't there more maybe like PageInit, PageDispose, (or equiv) etc...? Where can I find these?

EDIT - I can of course look up the method names in the api. I'm looking for a handy shortcut to add these in Visual Studio. If it generates one, can't it make others?

Solution 1

• In the solution explorer, right click the page and select "View component designer" from the context menu
• open the properties panel/window (press F4)
• now click the yellow arrow/flash icon and you will see a list of all page events
• double-click the event for which you want to add a handler

I'm pretty sure there was another way (starting from the designer view), but I can't reproduce it.

I usually do not use the page event handlers, instead I override the corresponding methods (e.g. OnLoad instead of Page_Load). To implement one of these overrides, you can simply type "override" in the code-behind and press space to get a list of methods that you can override.

Solution 2

With the invaluable ReSharper installed (might work without) I can just type:

override

and when I hit space IntelliSence pops up with a list of all the events that I can override such as OnInit, OnPreRender, etc.

Solution 3

as a shortcut to see what's available, you could always just type "Page." and then take a look a the list in intellisense. You could then pick one, hit +=Tab Tab to have it generate the stub for you. once the stub is created, you'd have to delete the "Page.event+=" line wherever you created it. Kind of a hokey workaround, but can work pretty quick once you get the hang of it.

Comments

[McArthey]

Hokey but not pokey - works quickly and easy to remember. Thanks!

[David Carr]

In VS2010, I don't have ReSharper installed and it seems to do this anyhow. I think this is the easiest approach of all mentioned here thus far.

[Dave Cousineau]

This works, but there are subtle differences between handling the events and overriding the On_ methods.

[Dave Cousineau]

what? unless I'm mistaken this has nothing at all to do with the question

[Dave Cousineau]

Also, this won't generate an event handler with the appropriate name, either. The event handler must be named, for example, Page_Load. This will name it after your class rather than after Page, and so it won't actually be hooked up to your page.

[Dave Cousineau]

This works nicely. Since the event is being handled from a reference named Page, the generated event handler incidentally gets named correctly, ie: Page_Load for the Load event. The only tricky part is that this has to be done from "method scope" since you can't access the Page property at class scope.

[Dave Cousineau]

I had originally said that the event handler must be protected and not private. This may or may not be necessary depending on the situation.

[yu yang Jian]

Works in VS2017!