In addition to the actual real time, which is executed independently of the operating system, an operating system always runs on the PC-based controls, which also enables other programs to be executed. The modular architecture makes it possible to install and load extensions on an application-specific basis in the form of functions. TwinCAT XAR (eXtended Automation Runtime) is a real-time-capable runtime in which the program code can be executed to control the field level of the machine. Functions are available to flexibly extend the basic engineering to include additional functionalities such as a software oscilloscope.

The tool even offers integrated debugging options for the program code and diagnostic functionalities for the control hardware. In addition to the IEC 61131-3 programming languages, C/C++ and MATLAB ®/Simulink ® are also available for programming.

Simply removed duplicated fields from PurchaseOrder class and it worked like a charm.TwinCAT XAE (eXtended Automation Engineering) allows hardware to be programmed and configured in a single engineering tool. public class PurchaseOrder : CreateUpdateUserInfo The model I was expecting as a parameter was a class. I was posting data from view to controller through ajax (http post). One more thing I need to add here before I share my code and solution, I had a break point on controller method but it was not breaking there, just throwing exception 500 internal server error. I have had the same error but b/c of diff reason. Then, I got the exact error posted by OP when I tried to save because currentModel now has ems AND currentModel.ItemsĪ simple change from 'items' to 'Items' fixed the problem. I didn't catch it, but in Visual Studio, it will auto lower case the first letter for Javascript properties (it could be a ReSharper thing too). In my Javascript, however, I did this, instead: ems = getData() Part of the process is to grab an array from some side process and set it to my currentModel.Items property and send currentModel to the server. So, some time later, I do some things and want to save, via Ajax. When I had first initialized the page I set my original model to a variable: var currentModel = result.Data I was doing some Ajax save where I was rebuilding the model to send back to the server. It is very related to the accepted answer, however, I did not have duplicated properties on my model, it was an issue with my Javascript. I would like to add an answer that I do not see here.

+141 .AsyncResultWrapper.End(IAsyncResult BindComple圎lementalModel(ControllerContext I get this error whenever I submit the form also the action method is not being called because of this:Īn item with the same key has already been added.

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