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.NET Forum / ASP.NET / General / February 2008Basic AJAX Question
Greetings, I'd like to implement some AJAX features on an existing ASP.NET site. I have one example of doing this but, otherwise, don't know much about it. I have one question, though, about getting started: I notice that there are project templates for creating AJAX this and AJAX that. I'm a little confused about this. Am I not able to add AJAX features to an existing Web form? Why is it necessary to select an AJAX form or whatever? Is there some special reason why I have to decide a form is going to use AJAX before I create that form? Thanks.  SignatureJonathan Wood SoftCircuits Programming http://www.softcircuits.com If you use the built in AJAX page Template, everything is added for you, that you will need (not really a big deal) Then (bigger deal), if you use the built in AJAX website template, then, even the Web.config contains all the entries which are necessary Otherwise, to make sure your site will use Ajax successfully, you need to update your Web.config file manually with the necessary items to use AJAX The first time I updated an already existng site to AJAX - I created a separate AJAX site and compared the two sites, including web.config files and bin folders - adding all the necessary items to the existing site which are needed. There should be a number of pages/websites which actually have a list of the items you need to update in the Web.config - David Wier http://aspnet101.com http://iWritePro.com - One click PDF, convert .doc/.rtf/.txt to HTML with no bloated markup > Greetings, > [quoted text clipped - 10 lines] > > Thanks. David, > If you use the built in AJAX page Template, everything is added for you, > that you will need (not really a big deal) > > Then (bigger deal), if you use the built in AJAX website template, then, > even the Web.config contains all the entries which are necessary Okay, I'll just have to figure that out than. > Otherwise, to make sure your site will use Ajax successfully, you need to > update your Web.config file manually with the necessary items to use AJAX [quoted text clipped - 5 lines] > There should be a number of pages/websites which actually have a list of > the items you need to update in the Web.config - I don't recall seeing that in the one example I saw but will keep an eye out for it.. I purchased an introduction to AJAX but it has loads of stuff I simply don't need to know at this point, and it was written before VS2008 and so there's a bunch of stuff that doesn't even seem to apply. I gave up on it and am looking for a source for a brief tutorial on getting it up and running on VS2008. Thanks. SignatureJonathan Wood SoftCircuits Programming http://www.softcircuits.com > Greetings, > [quoted text clipped - 14 lines] > Jonathan Wood > SoftCircuits Programminghttp://www.softcircuits.com I think you are talking about those website templates which you can select at the time you create a website. When you select an AJAX template to create a web site, Visual Studio will do the necessary configurations in web.config (maybe somewhere else as well) for you. True, you can always select to create a regular ASP.Net website, and configure it yourself in Web.config if you want to add some AJAX features later on. Thanks. Since my site is already well underway, I don't really have the luxury of creating it from a template. SignatureJonathan Wood SoftCircuits Programming http://www.softcircuits.com On Jan 31, 12:58 pm, "Jonathan Wood" <jw...@softcircuits.com> wrote: > Greetings, > [quoted text clipped - 16 lines] > Jonathan Wood > SoftCircuits Programminghttp://www.softcircuits.com I think you are talking about those website templates which you can select at the time you create a website. When you select an AJAX template to create a web site, Visual Studio will do the necessary configurations in web.config (maybe somewhere else as well) for you. True, you can always select to create a regular ASP.Net website, and configure it yourself in Web.config if you want to add some AJAX features later on. > Greetings, > [quoted text clipped - 5 lines] > confused about this. Am I not able to add AJAX features to an existing Web > form? You are able. >Why is it necessary to select an AJAX form or whatever? Just a shortcut to add the controls necessary for AJAX controls on the page. In particular, this adds the ScriptManager (and UpdatePanel?). > Is there some special reason why I have to decide a form is going to use > AJAX before I create that form? No, but you will have to add the proper controls later, if not. SignatureGregory A. Beamer MVP, MCP: +I, SE, SD, DBA ************************************************* | Think outside the box! ************************************************* Thanks. I'll see if I can figure that out. SignatureJonathan Wood SoftCircuits Programming http://www.softcircuits.com >> Greetings, >> [quoted text clipped - 20 lines] > | Think outside the box! | > ************************************************* The two main things you have to work with are: 1. Ensuring the web.config is set up correctly. This can be done after the fact by eitehr a) typing or b) copying from an AJAX site. 2. Adding the ScriptManager (at minimum) and other controls (UpdatePanel most commonly) to the page you are updating. Then, follow the examples you find on the web to get the type of functionality you desire. SignatureGregory A. Beamer MVP, MCP: +I, SE, SD, DBA ************************************************* | Think outside the box! ************************************************* > Thanks. I'll see if I can figure that out. > [quoted text clipped - 22 lines] >> | Think outside the box! | >> ************************************************* Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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