validationmessage

问题 I'm testing a list of things for null. Every time I find one, I save it in an array to implement it in a validationmessage. Output I want looks like this: Field 1 is required Field 4 is required etc... But I can't seem to be able to start a new line. Now, it looks like this: Field 1 is required Field 4 is required Does anybody know how to achieve this? EDIT: controller: IDictionary<int, String> emptyFields = new Dictionary<int, String>(); foreach (Something thing in AnotherThing.Collection) {