MahApps.Metro.Controls.Dialogs.ProgressDialogController.SetMessage C# (CSharp) Method

        public void SetMessage(string message)
        {
            this.WrappedDialog.Invoke(() => this.WrappedDialog.Message = message);
        }

        public string CreateXmlDb(List<MagicCard> listOfCards, ProgressDialogController dialogController)
        {
            var curCard = 0;
            var totalCards = listOfCards.Count;

            foreach (var distinctSet in listOfCards.DistinctBy(o => o.Set))
            {
                var enumerable = listOfCards.Where(op => op.Set == distinctSet.Set && op.PathOfCardImage.Contains("original")).DistinctBy(o => o.Name);
                foreach (var distinctCard in enumerable)
                {
                    var cardElement = _xmlfile.CreateElement("card");
                    AddChildElementAndValue(cardElement, _util.GetVariableName(() => distinctCard.Name), distinctCard.Name);
                    AddChildElementAndValue(cardElement, _util.GetVariableName(() => distinctCard.Set), distinctCard.Set);
                    AddChildElementAndValue(cardElement, _util.GetVariableName(() => distinctCard.PathOfCardImage), distinctCard.PathOfCardImage);

                    var phashesElement = _xmlfile.CreateElement("phashes");
                    foreach (var magicCard in listOfCards.Where(o => o.Name == distinctCard.Name && o.Set == distinctSet.Set))
                    {
                        foreach (var phash in magicCard.PHashes)
                        {
                            AddChildElementAndValue(phashesElement, "phash", phash.ToString());
                        }
                    }
                    cardElement.AppendChild(phashesElement);
                    _rootNode.AppendChild(cardElement);
                    curCard++;
                    dialogController.SetProgress((double)curCard / totalCards);
                    dialogController.SetMessage("Creating a Simple Database of all those pHashes: " + curCard + "/" + totalCards);
                }
            }

            SaveXmlFile();
            return Path.GetFullPath(XmlDbPath);
        }