Feature service QueryAttachmentData method
Queries and returns attachments of the input attachment identifier array.
AttachmentDataArray QueryAttacmentData(int LayerOrTableID, int[] IDsOfAttachmentsToQuery, esriTransportType TransportType, string VersionName)
|
Parameter |
Description |
|---|---|
|
LayerOrTableID |
Identifier of the layer or table. |
|
IDsOfAttachmentsToQuery |
An array of AttachmenIDs. |
|
TransportType |
Describes the way the attachments will be return based on the esriTransportType constant. (URL – "esriTransportTypeUrl", Embedded &endash "esriTransportTypeEmbedded") |
VersionName | Geodatabase version to query. This parameter only applies to feature services that expose geodatabases. If not specified, queries are made against the published map's version. |
Return Value
This method returns an array of attachments (AttachmentData []).
Remarks
Once you have the list of identifiers for attachments (AttachmentIDs) from the QueryAttachmentInfos method you can use the this method to access the attachments.
You can specify the specific the type of transport method that you would like the attachments to be returned with. Feature services support two transportation types:
- esriTransportTypeUrl - returns a URL to the attachment
- esriTransportTypeEmbedded - returns the attachment as bytes that can be save to a file