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DocumentClient.CreateAttachmentAsync 方法
定义
重要
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重载
| CreateAttachmentAsync(String, Stream, MediaOptions, RequestOptions, CancellationToken) |
Attachment使用 Azure Cosmos DB 服务中作为异步操作提供 |
| CreateAttachmentAsync(Uri, Stream, MediaOptions, RequestOptions, CancellationToken) |
在 Azure Cosmos DB 服务中将附件创建为异步操作。 |
| CreateAttachmentAsync(String, Object, RequestOptions, CancellationToken) |
在 Azure Cosmos DB 服务中将附件创建为异步操作。 |
| CreateAttachmentAsync(Uri, Object, RequestOptions, CancellationToken) |
在 Azure Cosmos DB 服务中将附件创建为异步操作。 |
CreateAttachmentAsync(String, Stream, MediaOptions, RequestOptions, CancellationToken)
Attachment使用 Azure Cosmos DB 服务中作为异步操作提供mediaStream的内容创建 。
public System.Threading.Tasks.Task<Microsoft.Azure.Documents.Client.ResourceResponse<Microsoft.Azure.Documents.Attachment>> CreateAttachmentAsync (string attachmentsLink, System.IO.Stream mediaStream, Microsoft.Azure.Documents.Client.MediaOptions options = default, Microsoft.Azure.Documents.Client.RequestOptions requestOptions = default, System.Threading.CancellationToken cancellationToken = default);abstract member CreateAttachmentAsync : string * System.IO.Stream * Microsoft.Azure.Documents.Client.MediaOptions * Microsoft.Azure.Documents.Client.RequestOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.Azure.Documents.Client.ResourceResponse<Microsoft.Azure.Documents.Attachment>>
override this.CreateAttachmentAsync : string * System.IO.Stream * Microsoft.Azure.Documents.Client.MediaOptions * Microsoft.Azure.Documents.Client.RequestOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.Azure.Documents.Client.ResourceResponse<Microsoft.Azure.Documents.Attachment>>Public Function CreateAttachmentAsync (attachmentsLink As String, mediaStream As Stream, Optional options As MediaOptions = Nothing, Optional requestOptions As RequestOptions = Nothing, Optional cancellationToken As CancellationToken = Nothing) As Task(Of ResourceResponse(Of Attachment))参数
- attachmentsLink
- String
文档的附件链接。 例如 dbs/db_rid/colls/col_rid/docs/doc_rid/attachments/
- options
- MediaOptions
MediaOptions请求的 。
- requestOptions
- RequestOptions
请求选项。
- cancellationToken
- CancellationToken
(可选) A CancellationToken ，可供其他对象或线程用来接收取消通知。
返回
表示异步操作的服务响应的任务对象。
实现
例外
attachmentsLink如果未设置 或 mediaStream 。
示例
//This attachment could be any binary you want to attach. Like images, videos, word documents, pdfs etc. it doesn't matter
using (FileStream fileStream = new FileStream(@".\something.pdf", FileMode.Open))
{
//Create the attachment
Attachment attachment = await client.CreateAttachmentAsync("dbs/db_rid/colls/coll_rid/docs/doc_rid/attachments/",
fileStream,
new MediaOptions
{
ContentType = "application/pdf",
Slug = "something.pdf"
});
}
另请参阅
适用于
CreateAttachmentAsync(Uri, Stream, MediaOptions, RequestOptions, CancellationToken)
在 Azure Cosmos DB 服务中将附件创建为异步操作。
public System.Threading.Tasks.Task<Microsoft.Azure.Documents.Client.ResourceResponse<Microsoft.Azure.Documents.Attachment>> CreateAttachmentAsync (Uri documentUri, System.IO.Stream mediaStream, Microsoft.Azure.Documents.Client.MediaOptions options = default, Microsoft.Azure.Documents.Client.RequestOptions requestOptions = default, System.Threading.CancellationToken cancellationToken = default);abstract member CreateAttachmentAsync : Uri * System.IO.Stream * Microsoft.Azure.Documents.Client.MediaOptions * Microsoft.Azure.Documents.Client.RequestOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.Azure.Documents.Client.ResourceResponse<Microsoft.Azure.Documents.Attachment>>
override this.CreateAttachmentAsync : Uri * System.IO.Stream * Microsoft.Azure.Documents.Client.MediaOptions * Microsoft.Azure.Documents.Client.RequestOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.Azure.Documents.Client.ResourceResponse<Microsoft.Azure.Documents.Attachment>>Public Function CreateAttachmentAsync (documentUri As Uri, mediaStream As Stream, Optional options As MediaOptions = Nothing, Optional requestOptions As RequestOptions = Nothing, Optional cancellationToken As CancellationToken = Nothing) As Task(Of ResourceResponse(Of Attachment))参数
- documentUri
- Uri
要为其创建附件的文档的 URI。
- mediaStream
- Stream
附件媒体的流。
- options
- MediaOptions
请求的媒体选项。
- requestOptions
- RequestOptions
请求的请求选项。
- cancellationToken
- CancellationToken
(表示请求取消的可选) CancellationToken 。
返回
表示异步操作的服务响应的任务对象。
实现
适用于
CreateAttachmentAsync(String, Object, RequestOptions, CancellationToken)
在 Azure Cosmos DB 服务中将附件创建为异步操作。
public System.Threading.Tasks.Task<Microsoft.Azure.Documents.Client.ResourceResponse<Microsoft.Azure.Documents.Attachment>> CreateAttachmentAsync (string documentLink, object attachment, Microsoft.Azure.Documents.Client.RequestOptions options = default, System.Threading.CancellationToken cancellationToken = default);abstract member CreateAttachmentAsync : string * obj * Microsoft.Azure.Documents.Client.RequestOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.Azure.Documents.Client.ResourceResponse<Microsoft.Azure.Documents.Attachment>>
override this.CreateAttachmentAsync : string * obj * Microsoft.Azure.Documents.Client.RequestOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.Azure.Documents.Client.ResourceResponse<Microsoft.Azure.Documents.Attachment>>Public Function CreateAttachmentAsync (documentLink As String, attachment As Object, Optional options As RequestOptions = Nothing, Optional cancellationToken As CancellationToken = Nothing) As Task(Of ResourceResponse(Of Attachment))参数
- documentLink
- String
此新附件的父文档的链接。 例如 dbs/db_rid/colls/col_rid/docs/doc_rid/
- attachment
- Object
附件对象。
- options
- RequestOptions
(可选) 请求的请求选项。
- cancellationToken
- CancellationToken
(可选) A CancellationToken ，可供其他对象或线程用来接收取消通知。
返回
表示 Task 异步操作的服务响应的 对象。
实现
示例
以下示例创建一个新文档，然后为该文档创建新的附件
dynamic d = new
{
id = "DOC1800243243470"
};
Document doc = await client.CreateDocumentAsync(collectionSelfLink, d);
//Create an Attachment which links to binary content stored somewhere else
//Use the MediaLink property of Attachment to set where the binary resides
//MediaLink can also point at another Attachment within Azure Cosmos DB.
Attachment a = await client.CreateAttachmentAsync(doc.SelfLink, new Attachment { Id = "foo", ContentType = "text/plain", MediaLink = "link to your media" });
//Because Attachment is a Dynamic object you can use SetPropertyValue method to any property you like
//Even if that property doesn't exist. Here we are creating two new properties on the Attachment we created above.
a.SetPropertyValue("Foo", "some value");
a.SetPropertyValue("Bar", "some value");
//Now update the Attachment object in the database to persist the new properties on the object
client.ReplaceAttachmentAsync(a);
//Let's now create another Attachment except this time we're going to use a Dynamic object instead
//of a <see cref="Microsoft.Azure.Documents.Attachment"/> as we did above.
var b = await client.CreateAttachmentAsync(doc.SelfLink, new { id = "foo", contentType = "text/plain", media="link to your media", a = 5, b = 6 });
//Now you will have a Document in your database with two attachments.
另请参阅
适用于
CreateAttachmentAsync(Uri, Object, RequestOptions, CancellationToken)
在 Azure Cosmos DB 服务中将附件创建为异步操作。
public System.Threading.Tasks.Task<Microsoft.Azure.Documents.Client.ResourceResponse<Microsoft.Azure.Documents.Attachment>> CreateAttachmentAsync (Uri documentUri, object attachment, Microsoft.Azure.Documents.Client.RequestOptions options = default, System.Threading.CancellationToken cancellationToken = default);abstract member CreateAttachmentAsync : Uri * obj * Microsoft.Azure.Documents.Client.RequestOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.Azure.Documents.Client.ResourceResponse<Microsoft.Azure.Documents.Attachment>>
override this.CreateAttachmentAsync : Uri * obj * Microsoft.Azure.Documents.Client.RequestOptions * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.Azure.Documents.Client.ResourceResponse<Microsoft.Azure.Documents.Attachment>>Public Function CreateAttachmentAsync (documentUri As Uri, attachment As Object, Optional options As RequestOptions = Nothing, Optional cancellationToken As CancellationToken = Nothing) As Task(Of ResourceResponse(Of Attachment))参数
- documentUri
- Uri
要为其创建附件的文档的 URI。
- attachment
- Object
附件对象。
- options
- RequestOptions
请求的请求选项。
- cancellationToken
- CancellationToken
(表示请求取消的可选) CancellationToken 。
返回
表示异步操作的服务响应的任务对象。
