private void Import_Json_OnClick(object sender, RoutedEventArgs e) { var browser = new OpenFileDialog { Multiselect = false, Filter = "json files (*.json)|*.json|All files (*.*)|*.*" }; // show browser browser.ShowDialog(); var fileName = browser.FileName; try { //Load CSV into Mainwindow if (AccProjectConfig.LoadBim360Projectsfromjson(fileName)) { statusbar.Text = "Import successful!"; using (FileStream fs = File.OpenWrite(path_last)) { using (var sr = new StreamWriter(fs)) { //Delete the content of the file sr.Write(string.Empty); sr.WriteLine(fileName); } } } else { statusbar.Text = "Import failed! Unknown CSV Config or File not found!"; } } catch (Exception ex) { statusbar.Text = "Fail to Load: " + ex.Message; } }