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XmlDictionaryWriter.WriteBase64Async Method

.NET Framework 4.5

Asynchronously encodes the specified binary bytes as Base64 and writes out the resulting text.

Namespace: System.Xml
Assembly: System.Runtime.Serialization (in System.Runtime.Serialization.dll)

public override Task WriteBase64Async(
	byte[] buffer,
	int index,
	int count
)

Parameters

buffer: Type: System.Byte[]
Byte array to encode.

index: Type: System.Int32
The position in the buffer indicating the start of the bytes to write.

count: Type: System.Int32
The number of bytes to write.

Return Value

Type: System.Threading.Tasks.Task
The task that represents the asynchronous WriteBase64 operation.

Exceptions

Exception	Condition
InvalidOperationException	An XmlDictionaryWriter method was called before a previous asynchronous operation finished. In this case, InvalidOperationException is thrown with the message “An asynchronous operation is already in progress.”
InvalidOperationException	An XmlDictionaryWriter asynchronous method was called without setting the Async flag to true. In this case, InvalidOperationException is thrown with the message “Set XmlWriterSettings.Async to true if you want to use Async Methods.”

Remarks

To use this method, you must set the Async flag to true.

Version Information

.NET Framework

Supported in: 4.5

Platforms

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

XmlDictionaryWriter Class

System.Xml Namespace

Other Resources

Asynchronous Programming with Async and Await (C# and Visual Basic)

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