public Row CreateRow( 
   RowBuffer rowBuffer
)

{
  await QueuedTask.Run(() =>
  {
    string message = String.Empty;
    bool creationResult = false;
    EditOperation editOperation = new EditOperation();

    using (Geodatabase geodatabase = new Geodatabase(new DatabaseConnectionFile(new Uri("path\\to\\sde\\file\\sdefile.sde"))))
    using (Table enterpriseTable = geodatabase.OpenDataset<Table>("LocalGovernment.GDB.piCIPCost"))
    {
      // Declare the callback here. We are not executing it .yet.
      editOperation.Callback(context =>
      {
        TableDefinition tableDefinition = enterpriseTable.GetDefinition();
        int assetNameIndex = tableDefinition.FindField("ASSETNA");

        using (RowBuffer rowBuffer = enterpriseTable.CreateRowBuffer())
        {
          // Either the field index or the field name can be used in the indexer.
          rowBuffer[assetNameIndex] = "wMain";
          rowBuffer["COST"] = 700;
          rowBuffer["ACTION"] = "Open Cut";

          // subtype value for "Abandon".
          rowBuffer[tableDefinition.GetSubtypeField()] = 3;

          using (Row row = enterpriseTable.CreateRow(rowBuffer))
          {
            // To Indicate that the attribute table has to be updated.
            context.Invalidate(row);
          }
        }
      }, enterpriseTable);

      try
      {
        creationResult = editOperation.Execute();
        if (!creationResult) message = editOperation.ErrorMessage;
      }
      catch (GeodatabaseException exObj)
      {
        message = exObj.Message;
      }
    }

    if (!string.IsNullOrEmpty(message))
    {
      Debug.WriteLine(message);
    }
  });
}

{
  // Must be called within QueuedTask.Run
  void WriteBlobField(Table table, string blobFieldName, string imageFileName)
  {
    // Read the image file into a MemoryStream
    MemoryStream memoryStream = new MemoryStream();

    using (FileStream imageFile = new FileStream(imageFileName, FileMode.Open, FileAccess.Read))
    {
      imageFile.CopyTo(memoryStream);
    }

    // Create a new row in the table, and write the Memory Stream into a blob fiele
    using (RowBuffer rowBuffer = table.CreateRowBuffer())
    {
      rowBuffer[blobFieldName] = memoryStream;
      table.CreateRow(rowBuffer).Dispose();
    }
  }
}