Web Application Development and Engineering
In asp.net web form application, if we need ajax service, we will need to create wcf services on server side to serve ajax calls, while in MVC web application(version 3), no wcf is needed, a controller will do. Read the rest of this entry »
WCF is obvious a great tool in a distributed environment, especially as a web developer I used it every day as the Ajax back end, or restful service that can be consumed by any kind client php, java, ruby on rails etc you name it.
WCF is notorious about its complexity of configuration, plus the capability of different type of hosting, dependency on various .NET versions, it normally scares you off or you end up copying the code or configuration from somewhere and use it without real understanding. And it magically worked until one day… Read the rest of this entry »
I was once caught by an Ajax call to wcf service error like that :
ExceptionDetail:
HelpLink:null,InnerException:null,
Message:Input string was not in a correct format.
StackTrace: at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal)\u000d\u000a at System.Number.ParseInt32(…) Read the rest of this entry »
In Extjs apart from combo box, another very useful control is Treegrid. I am going to show you how to populate a Treegrid using wcf json data service in an asp.net web form project. Read the rest of this entry »
The most interesting component in Extjs is its ComboBox, it is so powerful that it has auto complete, filtering, paging features supported at configuration level. To be honest till today I still do not know the whole story about this control yet. There is always place for you to explore. But with bit of help and firsthand experience you can get a few grips of this control and might just start to use it in a few circumstances. Read the rest of this entry »
