private void ExtAppOPenCloseProj() { // save active project when requested if (SaveToProjectPath != "") { if (File.Exists(SaveToProjectPath)) {// open, truncate, serialize SerializePCSystem(SaveToProjectPath); activeProjectpath = SaveToProjectPath; pcExecutionSystemMetaData.AddProjectPathString(activeProjectpath); SaveToProjectPath = ""; if (thisPrjViewer != null) { LinkedMDSForm.BeginInvoke(new Action(() => { thisPrjViewer.updateTreeView(); })); } } else { SaveToProjectPath = ""; } } // open project from file when requested if (RequestedProjectPath != "") { if (File.Exists(RequestedProjectPath)) { // deserialize DeserializePCSystem(RequestedProjectPath); activeProjectpath = RequestedProjectPath; pcExecutionSystemMetaData.AddProjectPathString(activeProjectpath); RequestedProjectPath = ""; if (thisPrjViewer != null) { LinkedMDSForm.BeginInvoke(new Action(() => { thisPrjViewer.updateTreeView(); MainInit(); })); } } else { RequestedProjectPath = ""; } } }