Contents tagged with AJAX
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jQuery Overview Presentation
Last week I gave a presentation to the UC.NET User Group which provided an overview/introduction to jQuery. Instead of using PowerPoint I created an ASP.NET MVC website and used a jQuery presentation plugin (http://www.viget.com/inspire/jquery-presentation-plugin/) to provide slide navigation and animation, which allowed me to make the presentation very interactive.
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Using jQuery Ajax methods in ASP.NET MVC: $.get() and $.getJSON() vs. $.post()
I’m currently working on a project that uses ASP.NET MVC and jQuery to do some Ajax magic, and I ran into a minor (but maybe not obvious) issue when using $.post() against an MVC action that returns a JsonResult.
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using ASP.NET Validation from client code
I recently ran into a scenario where I needed to have a submit button exclusively run some client code, which is pretty common and usually handled by having some DOM element call an onclick method that does the work. However, there was quite a bit of validation that needed to be done and I did not want to have to rewrite the logic that the built in ASP.NET Validators provide. My solution was to make the form as if I was going to do a full postback, including adding validation to many different controls. Then I intercepted the postback by calling my custom JavaScript validation/action method and then returning false inside the OnClientClick property of the submitting button (which suppresses the postback, and also the validation). With the use of Firebug (an essential web development tool for Firefox) I was able to drill into the WebForm__DoPostBackWithOptions() method (included in the WebResource.axd JavaScript include) that ASP.NET uses. The first few lines are as follows:
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Animate a GridView row using the AJAX Control Toolkit from client code
I've run across a few situations in which I wanted to animate a certain row in a GridView as a result of some client action.A0 The reason that this is a little tricky is that the AJAX Control Toolkit's Animation Extender needs to act on a certain Target Control (identified of course by the TargetControlID) and you can't point the target control as a specific grid view row (not that you would even want to).
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Changing the ASP.NET AJAX Control Toolkit Calendar display mode
The ASP.NET AJAX Control Toolkit's Calendar (Click Here To See The CalendarExtender Control In Action) is a very nice control that allows you implement a client side dynamic calendar for date-picking functionality. One interesting feature is the ability to change the calendar from the default "days" mode (shows the days in one month) to "months" mode (showing all of the months in the current year) by clicking on the calendar title. Another click on the title will change the calendar into "years" mode, which shows 12 years at a time.