client.PerformCrudOperation doesn't exist? about salesforcemagic HOT 6 CLOSED

            Attachment[] attachment = new[]
            {
                new Attachment
                {
                    FileName = "test1.pdf",
                    Description = "TestUploadFile1",
                    ParentID = "800i0000000BJYqAAO",
                    Body = byteArray,
                    ContentType = ".pdf"
                }
            };

            CrudOperation<Attachment> myInsertOperation = new CrudOperation<Attachment>();
            myInsertOperation.OperationType = CrudOperations.Insert;
            myInsertOperation.Items = attachment;

            SalesforceResponse response = client.Crud<Attachment>(myInsertOperation);

    public void WriteXml(XmlWriter writer)
    {
        // TODO: Implement more robust serialization
        Type type = GetType();
        TypeAccessor accessor = ObjectHydrator.GetAccessor(type);
        writer.WriteElementString("type", type.GetName());

        foreach (PropertyInfo info in type.GetProperties())
        {
            var value = accessor[this, info.Name];
            if (value == null) continue;
            string xmlValue = value is DateTime 
                ? ((DateTime)value).ToString("yyyy-MM-ddTHH:mm:ssZ")
                : value.ToString();

            //Added additional routine for when value is Byte[] ---bnewbold 22OCT2014
            if (value.ToString() == "System.Byte[]") 
            {
                //When value is passed in a byte array, as when uploading a filestream file, we need to read the value in rather than cast it to a string.
                byte[] byteArray = (byte[]) value;  //Cast value as byte array into temp variable
                writer.WriteStartElement(info.GetName()); //Not using WriteElementsString so need to preface with the XML Tag
                writer.WriteBase64(byteArray, 0, byteArray.Length); //Just use base64 XML Writer
                writer.WriteEndElement(); //Close the xml tag
                continue;
            };
            //END OF ADDITIONAL ROUTINE
            writer.WriteElementString(info.GetName(), SalesforceNamespaces.SObject, xmlValue);
        }
    }