Thursday, June 27, 2019

How to omit methods from Swagger documentation on using Swashbuckle

You can add the following attribute to Controllers and Actions to exclude them from the generated documentation

[ApiExplorerSettings(IgnoreApi = true)]

Here is how you can add this on to a controller.

[ApiExplorerSettings(IgnoreApi = true)]
[NSAuthorize("Permission", "CanReadResource")]
public class CommonController : BaseController

Friday, June 07, 2019

"There is already an open DataReader associated with this Command which must be closed first."

This can happen if you execute a query while iterating over the results from another query. I ran into this issue when I called another async call while I was executing one result.

public async Task<IActionResult> GetTicketsInventory(int customerID, int accountID)
            var service_response = await this.ticketsService.GetTicketsInventory(customerID, accountID);
            List<TicketsInventoryCO> items = service_response.Response.ToConvert();

               // this is my second call where i am trying to get results based on some condition
               // to get customer names
                var customer_response = await this.customerService.GetAllMobilityCustomers();

            return ProcessServiceResponse(


This can be easily solved by allowing MARS in your connection string. Add MultipleActiveResultSets=true to the provider part of your connection string (where Data Source, Initial Catalog, etc. are specified). Sample connection string

 "CoreCS": "Data;Initial Catalog=Mobility;Integrated Security=False;User Id=sa; Password=xxxxxx;Max Pool Size=20; Connection Timeout=10;MultipleActiveResultSets=true;",