ReadValueChunkAsync()

override Task< int > System.Xml.XmlSubtreeReader.ReadValueChunkAsync ( char[] buffer, int index, int count )

inlinevirtual

Reimplemented from System.Xml.XmlReader.

Definition at line 1787 of file XmlSubtreeReader.cs.

    {
        switch (_state)
        {
        case State.Initial:
        case State.Error:
        case State.EndOfFile:
        case State.Closed:
            return AsyncHelper.DoneTaskZero;
        case State.PopNamespaceScope:
        case State.ClearNsAttributes:
            if (_curNsAttr != -1 && reader.CanReadValueChunk)
            {
                CheckBuffer(buffer, index, count);
                int num = _curNode.value.Length - _nsIncReadOffset;
                if (num > count)
                {
                    num = count;
                }
                if (num > 0)
                {
                    _curNode.value.CopyTo(_nsIncReadOffset, buffer, index, num);
                }
                _nsIncReadOffset += num;
                return Task.FromResult(num);
            }
            goto case State.Interactive;
        case State.Interactive:
            return reader.ReadValueChunkAsync(buffer, index, count);
        case State.ReadElementContentAsBase64:
        case State.ReadElementContentAsBinHex:
        case State.ReadContentAsBase64:
        case State.ReadContentAsBinHex:
            throw new InvalidOperationException(System.SR.Xml_MixingReadValueChunkWithBinary);
        default:
            return AsyncHelper.DoneTaskZero;
        }
    }

References System.Xml.XmlSubtreeReader._curNode, System.Xml.XmlSubtreeReader._curNsAttr, System.Xml.XmlSubtreeReader._nsIncReadOffset, System.Xml.XmlSubtreeReader._state, System.buffer, System.Xml.XmlReader.CanReadValueChunk, System.Xml.XmlSubtreeReader.CheckBuffer(), System.count, System.Xml.Dictionary, System.Xml.AsyncHelper.DoneTaskZero, System.index, System.Xml.XmlWrappingReader.reader, System.Xml.XmlReader.ReadValueChunkAsync(), System.Xml.XmlSubtreeReader.NodeData.value, and System.SR.Xml_MixingReadValueChunkWithBinary.