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C# Reset Instance ID’s Within a V6 Product Structure
In a previous post “C# Connecting and Managing a Link to the CATIA App” we created a class that manages the connection to CATIA V6 (V5 Or Another application). Were going to use this to create the connection to V6 and to rename the instances within a product structure.
CATIA Connection
This section of code deals with creating the Connection and what to do if the connection status changes from connected to disconnected or visa-versa.
public MainPageViewModel(ILogger logger, MainViewModel mainViewModel) { logger.Information("MainPageViewModel Constructor."); _logger = logger; MainViewModel = mainViewModel; _catiaV6Connection = new CATIAV6Connection(logger); _catiaV6Connection.OnConnectedChanged += OnConnectedChanged; } private void OnConnectedChanged(object? sender, EventArgs e) { _logger.Information("MainPageViewModel - OnConnectedChanged"); if (_catiaV6Connection != null) { ConnectionBrush = (_catiaV6Connection.Connected == false) ? Brushes.Red : Brushes.LightGreen; if (MainViewModel != null) { if (_catiaV6Connection.CATIAV6App != null) { MainViewModel.CATIAV6App = new CATIAV6App(_logger, _catiaV6Connection.CATIAV6App); CatiaConnectionTooltip = (_catiaV6Connection.Connected == false) ? "CATIA is Not Connected." : "CATIA is Connected."; IsConnected = _catiaV6Connection.Connected; } else { _logger.Information("MainPageViewModel - OnConnectedChanged - CATIAV6App was Null."); } } } }CATIAV6RenameInstanceIDs Class
Within a new class called CATIAV6RenameInstanceIDs we will start of by creating the constructor, that will take in the ILogger and CATIAV6Connection objects.
using Serilog;namespace DES.CATIAV6.ClearanceContactAndClashManager.UI.Helpers.CATIAV6{ public class CATIAV6RenameInstanceIDs { private ILogger _logger { get; } private CATIAV6Connection? _catiaV6Connection { get; } = null; public CATIAV6RenameInstanceIDs(ILogger logger, CATIAV6Connection catiaV6Connection) { logger.Information("CATIAV6RenameInstanceIDs Constructor."); _logger = logger; _catiaV6Connection = catiaV6Connection; } }}Rename Instance IDs Method
Within the CATIAV6RenameInstanceIDs a new Void Method will be created called RenameInstanceIDs. To validate the uniqueness of the instance ID, a Long name will be stored within a dictionary along with the Occurrence, where the long name will be the unique dictionary key.
private Dictionary<string, VPMOccurrence> _instanceDataDict = new Dictionary<string, VPMOccurrence>() { };public void RenameInstanceIds(){ if(_instanceDataDict != null && _instanceDataDict.Count ==0) { if (_catiaV6Connection?.Connected == true) { Editor? editor = _catiaV6Connection.CATIAV6App?.ActiveEditor; if (editor != null) { VPMRootOccurrence? vpmRootOccurrence = null; try { vpmRootOccurrence = (VPMRootOccurrence)editor.ActiveObject; } catch(Exception ex) { throw new Exception("The Active Document in the Session is not an Assembly.",ex); } NavigateProductStructure(vpmRootOccurrence.Occurrences); } } }}Navigate Product Structure
The Navigate Product Structure method, first defaults the instance ID to “Blank”, we have to default it to a recognizable string for when we test uniqueness.
private void NavigateProductStructure(VPMOccurrences vpmOccurrences) { for(int ioIndex = 1; ioIndex <= vpmOccurrences.Count; ioIndex++) { VPMOccurrence vpmOccurrence = vpmOccurrences.Item(ioIndex); vpmOccurrence.InstanceOccurrenceOf.SetAttributeValue("Name", "BLANK"); vpmOccurrence.InstanceOccurrenceOf.SetAttributeValue("Name", GetNextId(vpmOccurrence)); NavigateProductStructure( vpmOccurrence.Occurrences ); } }Get Long Name
Th Last Two methods, will create a long name and validate that it does not exist within the dictionary if it does it will roll to the next id until a unique id is found and return this back.
private string GetNextId(VPMOccurrence vpmOccurrence){ VPMInstance vpmInstance = (VPMInstance)vpmOccurrence.PLMEntity; VPMReference vpmReference = vpmInstance.ReferenceInstanceOf; string partNumber = vpmReference.GetAttributeValue("PLM_ExternalID"); string currentLongName = GetLongName(vpmOccurrence); for (int ioIndex = 1; ioIndex < 1000; ioIndex++) { string newLongName = currentLongName.Replace( "BLANK", string.Concat(partNumber, ".", ioIndex)); if(_instanceDataDict.ContainsKey(newLongName) == false) { _instanceDataDict.Add(newLongName, vpmOccurrence); return newLongName; } } return "BLANK";}private string GetLongName(VPMOccurrence vpmOccurrence){ string returnString = string.Empty; VPMOccurrence? parent = vpmOccurrence; try { while (parent != null) { returnString = string.Concat(parent.get_Name(), returnString); parent = (VPMOccurrence)parent.Parent; returnString = string.Concat(@"\", returnString); } } catch { // Do Nothing COM Exception Was Thrown By parent.Parent } finally { parent = null; } return returnString;}
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