Metadata.Exif Property ActiveX/Java Uploader ASP.NET

Syntax

public string Exif { get; set; }

Remarks

To get an uploaded EXIF value at the server, use the Package.PackageFields collection. Here this value can be retrieved by a key named in the following way: XXX_N, where XXX is a string value specified in this property (EXIF field name), and N is the index of the file in the request. E.g. if the property value is ExifDateTime;ExifOrientation;ExifModel, the PackageFields collection will contain the following keys:

• ExifDateTime_1, ExifDateTime_2, etc.
• ExifOrientation_1, ExifOrientation_2, etc.
• ExifModel_1, ExifModel_2, etc.

If you need to send/recieve custom EXIF tags (such tags are not mentioned in the table above), such as Windows Title tag, you can perform it in the following way:

• to extract such tag use the hexadecimal tag ID 0xID as a field name
• to recieve custom tag use the ExifCustom_ID_1, ExifCustom_ID_2, etc. keys

Here is the list of windows-specific tags, which values can be set via the properties tab of an image:

If you prefer to extract EXIF fields on the server, you can get them from the original file, or specify to preserve EXIF fields in the thumbnails you are going to upload. To do this, use the ThumbnailCopyExif property.

See Also

Reference

• Metadata Class
• Aurigma.ImageUploader Namespace
• $au.metadata.exif JavaScript PropertyActiveX/Java Uploader
• Metadata.Exif PHP PropertyActiveX/Java Uploader