How to enable “Append Changes to Existing Text” on a multiple line of text column, programmatically?

Question

I created programmatically a list and a column. This column is a multiple line of text. I would like to also enable the option "Append Changes to Existing Text" programmatically. How to do that?

using (SPWeb web = site.OpenWeb())
            {
                // check if list exists
                SPList list = web.Lists.TryGetList(listTitle);

                if (list == null)
                {
                    SPListCollection listCollection = web.Lists;

                    // create new list
                    Guid gd = listCollection.Add(listTitle, "", SPListTemplateType.GenericList);
                    //listCollection[gd].Update();

                    // get new created archive log list and add columns
                    list = listCollection[gd];

                    // enable versioning
                    list.EnableVersioning = true;          

                    list.Fields.Add("Log", SPFieldType.Note, false);

                    SPFieldMultiLineText logField = list.Fields.GetField("Log") as SPFieldMultiLineText;
                    // DO SOMETHING TO ALLOW APPEND CHANGES TO EXISTING TEXT
                    // save columns
                    list.Update();
               }
           }

Answer 1

Try this: logField.AppendOnly = true;

More info here.