// this will return a of all values (string) for the DataTypeId (int)

 ApplicationContext.Services.DataTypeService.GetPreValuesByDataTypeId(id)

Thats not what he wants - is there an easy way to convert a prevalue to the corrosponding string?

I don't think there is one, personally I think there should be a method on UmbracoHelper, vote on this old(ish) issue http://issues.umbraco.org/issue/U4-1752

Hi again, I just submitted a pull request for to add a method the @Umbraco helper, but there is a method on the DataTypeService you can use, e.g.

@if (Model.Content.HasValue("character"))
{        
    var ds = ApplicationContext.Services.DataTypeService;
    var preValue = ds.GetPreValueAsString(Model.Content.GetPropertyValue<int>("character"));
    <p>@preValue</p>
}

is working on a reply...