Deleting and Renaming Files

Reference
GridFS
Deleting and Renaming Files

Deleting and Renaming Files

These methods allow you to delete or rename GridFS files.

Deleting a single file

The DeleteAsync method is used to delete a single file identified by its Id.

IGridFSBucket bucket;
ObjectId id;

await bucket.DeleteAsync(id);

Dropping an entire GridFS bucket

If you want to drop an entire GridFS bucket at once use the DropAsync method.

IGridFSBucket bucket;

await bucket.DropAsync();

Note

The “fs.files” collection will be dropped first, followed by the “fs.chunks” collection. This is the fastest way to delete all files stored in a GridFS bucket at once.

Renaming a single file

The RenameAsync method is used to rename a single file identified by its Id.

IGridFSBucket bucket;
ObjectId id;
string newFilename;

await bucket.RenameAsync(id, newFilename);

Renaming all revisions of a file

If you want to rename all revisions of a file you first use FindAsync to find their ids and then call RenameAsync in a loop to rename them one at a time.

IGridFSBucket bucket;
ObjectId id;
string oldFilename;
string newFilename;

var filter = Builders<GridFSFileInfo>.Filter.EQ(x => x.Filename, oldFilename);
var filesCursor = await bucket.FindAsync(filter);
var files = await filesCursor.ToListAsync();

foreach (var file in files)
{
    await bucket.RenameAsync(file.Id, newFilename);
}

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