◆ ReadContentAsBase64Async()

override Task< int > System.Xml.XmlTextReaderImpl.ReadContentAsBase64Async	(	byte[]	buffer,
		int	index,
		int	count )

inlinevirtual

Reimplemented from System.Xml.XmlReader.

Definition at line 8861 of file XmlTextReaderImpl.cs.

    {
        CheckAsyncCall();
        if (buffer == null)
        {
            throw new ArgumentNullException("buffer");
        }
        if (count < 0)
        {
            throw new ArgumentOutOfRangeException("count");
        }
        if (index < 0)
        {
            throw new ArgumentOutOfRangeException("index");
        }
        if (buffer.Length - index < count)
        {
            throw new ArgumentOutOfRangeException("count");
        }
        if (_parsingFunction == ParsingFunction.InReadContentAsBinary)
        {
            if (_incReadDecoder == _base64Decoder)
            {
                return ReadContentAsBinaryAsync(buffer, index, count);
            }
        }
        else
        {
            if (_readState != ReadState.Interactive)
            {
                return AsyncHelper.DoneTaskZero;
            }
            if (_parsingFunction == ParsingFunction.InReadElementContentAsBinary)
            {
                throw new InvalidOperationException(System.SR.Xml_MixingBinaryContentMethods);
            }
            if (!XmlReader.CanReadContentAs(_curNode.type))
            {
                throw CreateReadContentAsException("ReadContentAsBase64");
            }
            Task<bool> task = InitReadContentAsBinaryAsync();
            if (!task.IsSuccess())
            {
                return ReadContentAsBase64_AsyncHelper(task, buffer, index, count);
            }
            if (!task.Result)
            {
                return AsyncHelper.DoneTaskZero;
            }
        }
        InitBase64Decoder();
        return ReadContentAsBinaryAsync(buffer, index, count);
    }