How to upload data records with the .NET SDK

public Document UploadDataRecordToFileCabinet(FileCabinet fileCabinet) 

        { 

            var indexData = new Document() 

            { 

                Fields = new List<DocumentIndexField>() 

                { 

                    /* Names should be capitalized and are the database names  

                     * of the fields. They do not require DW_ prefixes. 

                     */ 

                    DocumentIndexField.Create("FIELDNAME", "Value1"),  

                    DocumentIndexField.Create("FIELDNAME2", "Value2"), 

                } 

            }; 

            var uploadedDocument = fileCabinet.UploadDocument(indexData); 

            return uploadedDocument; 

        }