[OpenPlantModeler C#]Does anyone knows how to get elementid from IECInstance?

Question

I found a way to get all pipe of current plant in OPM SDK's example as follow : 
 ECInstanceList pipeInstances = DgnUtilities.FindInstancesAndLoadRelated("PIPE", false, "PIPING_COMPONENT_HAS_PORT", true);
if (pipeInstances != null && pipeInstances.Count > 0)
{
 foreach (IECInstance pipeInst in pipeInstances)
 {
 //do something
 }
} 
 I could get most EC value in the pipeInst,but i can't get ElementId from it.Does Anyone knows how to get ElementId from it or have an easy way to get all pipe's ElementId?

Soham Mhaskar · Accepted Answer

Hello MingQuan, 
 Thanks for posting on Bentley Plant Forum. I will have this taken up internally to check with a few Colleagues who may have tried this. Either me or them will provide you with the details you need. Regards | Soham Mhaskar

Gaurav.Gundecha · Answer

there is this example code in MSSDK for CE. You will need to create the IdgnECInstance from your IECInstance 
 DgnPlatformNET.DgnEC.FindInstancesScope scope = DgnPlatformNET.DgnEC.FindInstancesScope.CreateScope(activeFile, new DgnPlatformNET.DgnEC.FindInstancesScopeOption (hostType, false)); using (DgnPlatformNET.DgnEC.DgnECInstanceCollection coll= ecManager.FindInstances(scope, query)) { foreach (DgnPlatformNET.DgnEC.IDgnECInstance instance in coll) { string instanceName = instance.ClassDefinition.Name; string id = instance.Element.ElementId.ToString(); string message = "Class name: " + instanceName + " Element Id: " + id;

Jan Šlegr · Answer

MingQuan Tang said: do you have an example to search all elements and filter out pipes? 
 As I wrote, I do not know plant data model (typically I wrote code for MicroStation or civil products). 
 I recommend to check MicroStation programming blog , where a few articles about EC API were published. Also, to search this web for phrases like FindInstancesScope, ECQuery or QueryRelatedClassSpecifier (names of classes typically used when EC data is queried) can provide some hints. 
 My general approach is to start with general search over complete model, to check what is returned (because sometimes EC representation of elements is different than expected) and to make EC query more specific. 
 With regards, 
 Jan

Gaurav.Gundecha · Answer

You need to first create a pointer to your ECSChema and then create an IECClass with the name "PIPE". This is IECClass object can be passed to the e cQuery.AddSearchClass() 
 I dont have the C# code sample but this managed c++ snippet should help you. 
 Thanks, 
 IECSchema^ opmSchema = ECObjects::ECObjects::LocateSchema ("OpenPlant_3D.01.07", Bentley::ECObjects::Schema::SchemaMatchType::LatestCompatible, nullptr, nullptr); ECQuery^ query = gcnew ECQuery (); 
 if (opmSchema) { query->AddSearchClass (opmSchema->GetClass ("PIPE"), true); }

[OpenPlantModeler C#]Does anyone knows how to get elementid from IECInstance?

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