README.md

GST Library Data

Helper for managing Data

Install

Like all Nuget package: Install-Package GST.Library.Data

OrderBy

OrderBy is a Linq extension who give the ability to set order a list of object properties in an ascendant or descendant way.

How to use it:

string[] sortList = new []{ "Name", "Adresse" };

IEnumerable<Client> clientList = clientRepository
        .FindClient()
        .OrderBy(sortList, "asc")
        .ToList();

Model Validation

InList

To validate that an value is in an allowed list, you can use the InList data annotation like bellow :

	public class SimpleDTO
    {
        [InList(new[]{"valiue 1", "value 2", "value 3"})]
        public string something { get; set; }
    }

AtLeastOneProperty

Like describe in this post from Stackoverflow Data Annotations for validation, at least one required field? the AtLeastOneProperty annotation allow to check if at least on of the targeted properties has a value.

It is worth saying that a class-level validation like this is only fired (i.e. IsValid() called) when all the property-level validations pass successfully

	[AtLeastOneProperty("ItemA", "ItemB", ErrorMessage = "You must supply at least one value of ItemA or ItemB")]
    [AtLeastOneProperty("ItemC", "ItemD")]
    public class AtLeastStub
    {
        public string ItemA { get; set; }
        public string ItemB { get; set; }
        public bool? ItemC { get; set; }
        public int? ItemD { get; set; }
    }