There was time when developers used to create Web Service using the WCF. Their argument was using basicHttpBinding makes a WCF service as a Web Service. Yes that ASMX based web service. I never agree to this argument. Clearly WCF was an evolvement over ASMX Web Service. Now let us talk about purpose of this […]
In my WCF training, I often get questions that can we expose a generic type as DataContract in WCF? Yes, WCF allows us to expose the generic types as Data Contract. Let us say we have a generic type Foo. We can apply data contract on the Foo as follows: We can use Foo<T> […]
In WCF we use the DataContract to serialize and deserialize the custom data. Sometime you may come across a scenario do some work before or after the data gets serialized or deserialized. These are following four events provided on the DataContract. You are free to give any method name provided method should return void and […]
Even though WCF is now, more than 5 years old but still I see developers struggling with the multiple bindings specially when hosted in a managed console application. In this post, step by step we will learn to create a WCF Service with multiple bindings and host the service in a managed console application. We […]
For a training purpose I was trying a basic demo on fault contract in WCF and to be surprised I Got below error while throwing FaultException. It’s not that 1st time I was working on Fault Contract but this error was irritating. After some investigation I found there was some issue in visual studio 2013 […]
Long back I wrote a blog post Step by Step hosting WCF Service in IIS 7.5 . In this post I used Visual Studio 2012 as I remember. Today I was trying to host WCF in local IIS in Visual Studio 2013 and found it is surprisingly easy to host WCF Service in IIS 2013 […]
Recently I was working on a JSON based WCF REST Service. It was a simple service performing CRUD operation. When I tried to consume service from a web based client, got following errors in browser console. Error message was, No Access-Control-Allow-Origin header is present on the required resource. Since service was running on different […]
If you know EndPoints well, you know WCF well. Configuring EndPoints are vital for any WCF design. You can configure EndPoints either via code or in web.config file. I have seen many times, developers are confused with EndPoints. I have come across following common question about EndPoints Can we have multiple EndPoints? Can be expose […]
When I started learning WCF, First thing I learnt was “Service is just like another class”. Okay so if WCF is a class which instance of class will handle request from client? Confusing? May be! In this post let us explore WCF Instance Management. In WCF, Instance Management is a technique to decide which service […]
WCF is one of the most asked topics in interviews. Recently one of my reader sent me a mail. He asked, “What is error in following code?” His code snippet was as below, In one sentence, problem with above code is in return type of Operation Contract. IsOneWay property of Operation Contract is set to […]
Dhananjay Kumar 