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What if you create an ImageData class for each filetype, then set the AllowedTypes to use those classes?
Start with a base class, for all image-related properties:
public abstract class BaseImageData : ImageData { public virtual string AltText { get; set; } }
Create image classes for each extension type:
[ContentType(GUID = "3016768f-180c-425c-97f7-e0a3dcbef9b7")] [MediaDescriptor(ExtensionString = "jpg")] public class JpgImageFile : BaseImageData { } [ContentType(GUID = "06e55dad-95da-44c5-a551-3cfbc820d853")] [MediaDescriptor(ExtensionString = "gif")] public class GifImageFile : BaseImageData { } [ContentType(GUID = "e476f5c3-d2d6-4659-9134-14c3c8b7efd3")] [MediaDescriptor(ExtensionString = "png")] public class PngImageFile : BaseImageData { }
Then use those classes in the AllowedTypes:
[ContentType(GUID = "d7a0797e-241a-410e-b35e-bb600aefec9b")] public class StandardPage : PageData { [AllowedTypes(new[] { typeof(JpgImageFile), typeof(PngImageFile) })] public virtual ContentReference Poster { get; set; } }
Is there a way to only allow specific file types in the ContentReference property? For example below, I only want to allow JPG and PNG, no GIFs (even though GIFs are allowed elsewhere on the site.
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