Called when a byte-array is about to be uploaded.
Called when a byte-array is about to be uploaded.
protected bool OnUploading(byte[],ref string,ref bool);
Called when a stream is about to be uploaded.
protected bool OnUploading(Stream,ref string,ref bool,out long);
Called when a file is about to be uploaded.
protected bool OnUploading(string,ref string,ref bool,ref bool);