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Posts related to: AJAX
Passing multiple simple POST Values to ASP.NET Web API
One feature conspicuously missing from ASP.NET Web API is the inability to map multiple urlencoded POST values to Web API method parameters. In this post I show a custom HttpParameterBinding that provides this highly useful functionality for your Web APIs.
Using JSON.NET for dynamic JSON parsing
Parsing JSON dynamically rather than statically serializing into objects is becoming much more common with today's applications consuming many services of varying complexity. Sometimes you don't need to map an entire API, but only need to parse a few items out of a larger JSON response. Using JSON.NET and JObject,JArray,JValue makes it very easy to dynamically parse and read JSON data at runtime and manipulate it in a variety of different ways. Here's how.
Using an alternate JSON Serializer in ASP.NET Web API
The default serializer in ASP.NET Web API (at least in Beta) is the DataContractJsonSerializer with all of its warts and inability to not serializer non-typed objects. In this post I'll talk about the issues and how to plug-in alternate JSON parsers to handle more complete JSON serialization in Web API.
Using the West Wind Web Toolkit to set up AJAX and REST Services
In this post I describe how to use the West Wind Web Toolkit to create an AJAX/REST service that can serve data to a JavaScript applications with a few short steps. Then we'll look at ways to access the server side code with simple jQuery/JavaScript code and the ajaxCallMethod() helper.
Displaying JSON in your Browser
Ever need to display JSON in your browser and finding out that it's a pain? Here are some tips on how to display JSON data without pesky download dialogs or display errors in your favorite browser.
Custom ASP.NET Routing to an HttpHandler
Routing support in ASP.NET 4.0 has been vastly improved, but custom routing still involves a fairly complex process of creating RouteHandlers and mapping requests properly. In this post I show an example of how to create custom routes automatically via Attribute route mapping for Http Handler endpoints.
Allowing Access to HttpContext in WCF REST Services
WCF REST Services do not make it easy to access all the features of the HTTP protocol, so in some situations it's just much easier to use ASP.NET compatibility to get direct access to the HttpContext object for access of all the HTTP headers and features.
WCF REST Service Activation Errors when AspNetCompatibility is enabled
Ran into a version problem with WCF REST Services when using on IIS and with ASP.NET Compatibility enabled. Turns out there's a potential version conflict in the system .config files that can cause this error to creep up - here's how to fix it.
Using jQuery to POST Form Data to an ASP.NET ASMX AJAX Web Service
ASP.NET and WCF AJAX Web Services and PageMethods natively don't accept urlencoded POST requests and so standard mechanisms for sending form POST data don't work directly with these services. However, with a few adjustments and using jQuery's .serizalizeArray() function it's possible to POST form data to ASP.NET Services and easily consume the form data.
AspNetCompatibility in WCF Services – easy to trip up
When using ASP.NET compatiblity in WCF REST services you'll want to be very careful in matching your configuration settings and service attributes in the correct combination or you may end up with unpleasant and hard to find ServiceActivationExceptions.
Getting and setting max zIndex with jQuery
Finding the largest zOrder is a useful feature if you are building applications that use pop up windows, use modal dialogs or otherwise allow dragging and dropping of content around a page. Here's a small jQuery plug-in that makes it easy to find the highest zOrder or assign a new higher zOrder to a jQuery selected element(s).
Native JSON Parsing: What does it mean?
The new native JSON support in new and upcoming browsers is going to improve JSON parsing performance. But there are still issues you need to deal with like the age-old JSON issue of date persistance with a JavaScript date literal. In this post I discuss various aspects of the native JSON parsers and how you can have one set of code that deals with either native parsers or the existing JSON2 interface.
A Localization Handler to serve ASP.NET Resources to JavaScript
Here's an implementation of an HTTP handler that can serve ASP.NET Server resources to JavaScript clients easily. The handler can provide both local and global, normalized server resources to client JavaScript pages so that you can localize resources in one place on the server. Use standard Resx resources or our custom database resource provider.
Removing the .SVC Extension from WCF REST URLs
One of the most frequent questions that come up when talking about WCF REST urls is how to remove the .SVC extension from the endpoint Url for a REST service. While it's not automatic, there are a couple of fairly simple solutions to this problem: Using the IIS 7 Rewrite Module or a small custom module.
jQuery and ASP.NET Article Part 2 Posted
I've posted Part 2 of my jQuery with ASP.NET article series. Part 2 deals almost entirely with making AJAX callbacks to ASP.NET using several different mechanisms to retrieve data from the server for client side consumption. Covered are external content retrieval, same page callbacks, WCF/ASMX and a pluggable custom callback implementation that can be used with any application. Also covered is client side templating for managing HTML in one place.