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Attachments: How to Update Only Attachment Metadata
UpdateAttachmentMetadata is used to update an attachment's metadata in a database.
Syntax
void UpdateAttachmentMetadata(string key, Etag etag, RavenJObject metadata);| Parameters | ||
|---|---|---|
| key | string | key under which attachment is stored |
| etag | Etag | current attachment Etag, used for concurrency checks (null to skip check) |
| metadata | RavenJObject | attachment metadata |
Example
JsonDocumentMetadata attachment = store.DatabaseCommands.Head("albums/holidays/sea.jpg");
RavenJObject metadata = attachment.Metadata;
metadata["Description"] = "Holidays 2012";
store
.DatabaseCommands
.UpdateAttachmentMetadata("albums/holidays/sea.jpg", attachment.Etag, metadata);
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