[V8i C# Addin] FloodFill Method

Search for flood in VBA help.

Are all these VBA methods available to C# addins? I don't see GetFloodBoundary anywhere for C# in Visual Studio intellisense. I'm new to Microstation development. How much functionality can the C# addin objects perform? Is it necessary for advanced functionality to use the MicrostationAPI and C++?

Unknown said:

Are all these VBA methods available to C# addins?

When developing using a .NET language, you need to reference MicroStation's VBA COM server via a .NET InterOp.

There's a huge range of functions in VBA, documented in

VBA help .

Unknown said:

Is it necessary for advanced functionality to use the MicrostationAPI and C++?

That depends on what you mean by 'advanced functionality'.

Unknown said:

Are all these VBA methods available to C# addins?

Yes, .NET assembly includes all COM functions and types. Even more, it also supports some functions not available in VBA.

C# also supports all MDL functions and can simulate all MDL structures.

In my application, I've referenced:

Bentley.General.1.0

bentley.interop.microstationdgn

bentley.microstation

bentley.microstation.interfaces.1.0

bentley.windowing

ustation

You all have been a big help on these forums and I appreciate the time taken. I've done C# development for years but this is the first time I've developed for Microstation and the hard part is trying to find what you need.

Can anyone point me to the function in C# for GetFloodBoundary? In the answers above, you mention I need to reference MicroStation's VBA COM. Is one of the references above including that?

Unknown said:

Is one of the references above including that?

Yes, it is bentley.interop.microstationdgn

Unknown said:

Can anyone point me to the function in C# for GetFloodBoundary?

Probably now I understand what confuses you.

MVBA hides usage of Application class and usage of MicroStationDGN namespace, so you can use its functions directly. In .NET there is no any default object, so you must explicitly use a MicroStationDGN.Application interface instace.

To obtain an instance of MicroStationDGN.Application interface you need assembly bentley.microstation. There is a class Bentley.MicroStation.InteropServices.Utilities, which has a property ComApp.

Use it as follows:

using BIM = Bentley.Interop.MicroStationDGN;
...
BIM.Application ustn = Bentley.MicroStation.InteropServices.Utilities.ComApp;
BIM.Element floodBoundary = ustn.GetFloodBoundary(...);

HTH

Thanks. I was able to find it after following the code above!

DanPaul, give an example of how to use this function.
At me it always returns null.

using BCOM = Bentley.Interop.MicroStationDGN;
using BMI = Bentley.MstnPlatformNET.InteropServices;

.......

BCOM.Application app = BMI.Utilities.ComApp;
DgnModelRef modelRef = Session.Instance.GetActiveDgnModelRef();
double denominator = modelRef.GetModelInfo().UorPerMaster;

BCOM.Element[] elms = app.ActiveDesignFile.Fence.GetContents().BuildArrayFromContents();

BCOM.Point3d seedPoint = new BCOM.Point3d();
seedPoint.X = ev.Point.X / denominator;
seedPoint.Y = ev.Point.Y / denominator;
seedPoint.Z = ev.Point.Z / denominator;

BCOM.Element result = app.GetFloodBoundary(elms, null, seedPoint, 1, true, 100, BCOM.MsdFillMode.Outlined);

What does not work?

Hi Andrew,

you replied to 5 years old discussion ... and even more related to the different version of MicroStation!

Please create the new and follow this forum Best practices including versions (MicroStation, Visual Studio / NET platform) specifications.

Regards,

  Jan

Andrew Kadyshev said:

DanPaul, give an example

As Jan wrote, this post is five years old.  Sadly, Dan Paul is no longer active on this Forum.  He was an excellent contributor.

Tell us which version (e.g. 10.x.y.z) of MicroStation you are using.

Hi Jon!

I use v10.01.00.15.

Hi Andrew,

Andrew Kadyshev said:

I use v10.01.00.15.

This is quite old version, I guess Interop API documentation was not even published as a part of SDK.

Is there any reason why the latest MicroStation Update 7 is not used? All APIs are cleaned and enhanced in every version, so sometimes the upgrade solves the problems.

With regards,

  Jan

Hi Andrew,

Andrew Kadyshev said:

I use v10.01.00.15.

This is quite old version, I guess Interop API documentation was not even published as a part of SDK.

Is there any reason why the latest MicroStation Update 7 is not used? All APIs are cleaned and enhanced in every version, so sometimes the upgrade solves the problems.

With regards,

  Jan