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The user-specified message attribute value. For string data types, the value attribute has the same restrictions on the content as the message body. For more information, see Publish.
Name, type, and value must not be empty or null. In addition, the message body should not be empty or null. All parts of the message attribute, including name, type, and value, are included in the message size restriction, which is currently 256 KB (262,144 bytes). For more information, see Using Amazon SNS Message Attributes.
public class MessageAttributeValue
The MessageAttributeValue type exposes the following members
Gets and sets the property BinaryValue.
Binary type attributes can store any binary data, for example, compressed data, encrypted data, or images.
Gets and sets the property DataType.
Amazon SNS supports the following logical data types: String, Number, and Binary. For more information, see Message Attribute Data Types.
Gets and sets the property StringValue.
Strings are Unicode with UTF8 binary encoding. For a list of code values, see http://en.wikipedia.org/wiki/ASCII#ASCII_printable_characters.
Supported in: 1.3
Supported in: 4.5, 4.0, 3.5
Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms
Supported Versions: 4.6 and above
Supported Platforms: Android, iOS, Standalone