Do you have an example of ApiController implementation for batch operation?
I tried deleting
a number of rows at a time but got this
{"Message":"The request entity's media type 'multipart/mixed' is not supported for this resource.","ExceptionMessage":"No MediaTypeFormatter is available to read an object of type 'PhoneBook' from content with media type 'multipart/mixed'.","ExceptionType":"System.Net.Http.UnsupportedMediaTypeException","StackTrace":" at System.Net.Http.HttpContentExtensions.ReadAsAsync[T](HttpContent content, Type type, IEnumerable`1 formatters, IFormatterLogger formatterLogger, CancellationToken cancellationToken)\r\n at System.Web.Http.ModelBinding.FormatterParameterBinding.ReadContentAsync(HttpRequestMessage request, Type type, IEnumerable`1 formatters, IFormatterLogger formatterLogger, CancellationToken cancellationToken)"}
Thanks