BudgetAnalyser.Uwp.ApplicationState.PersistApplicationStateAsXaml.FullFileName C# (CSharp) Method

        protected virtual async Task<string> FullFileName()
        {
            if (string.IsNullOrEmpty(this.doNotUseFullFileName))
            {
                var location = await this.folders.ApplicationDataFolder();
                Debug.Assert(location != null);
                this.doNotUseFullFileName = Path.Combine(location, FileName);
            }

            return this.doNotUseFullFileName;
        }