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Tag Archives: C#
Displaying Validation Errors with ASP.NET MVC
We all know how important it is to validate user input, but it’s equally important how we present validation errors to the user. Take the following form: The email field needs to be optional but any address entered must be … Continue reading
Null Checking Made Easy
It’s fairly common for developers to need to move data from one class structure to another. If the class is complex you may find yourself writing endless null checks to ensure you don’t cause a NullReferenceException: This article includes a … Continue reading
How to Deserialize Derived Objects in Json.NET
Imagine you need to process some JSON that looks like this: Notice how the array contains similar objects, two vehicles. Each vehicle has a “type” property that identifies the specific type of vehicle. If we wanted to deserialize this into … Continue reading
ASP.NET MVC – Cannot create an instance of an interface
I came across an error message recently that I hadn’t seen before: The error occurred when I tried submitting the following form: The stack trace suggested it came from the model binder: [MissingMethodException: Cannot create an instance of an interface.] … Continue reading
Wrapping JsonResults in ASP.NET MVC
Like a lot of web developers I like to load page content dynamically but this can cause problems if the Ajax request causes an error on the server. Timeouts can be handled in jQuery but what if the user needs … Continue reading
Code Overload's Blog 