C#/FB.net: Using/Reading Constraint Limits

[sebastian.Flierl7B6DQ]

I would like to read the Value of ConstraintLimits.MaximumEnabled by using the API with a C# Code. (using visual Studio). I don´t get access to the ConstraintLimits by Using a C# Code. (same with FB.net). There is a difference to the VBA script.

If I use a VBA script i can do this with the following code:

Dim MaximumEnabled As bool

MaximumEnabled = oOcc.Definition.Occurrences.Constraints.ConstraintLimits.MaximumEnabled = True

If I use a C# script there is a Property "ConstraintLimits" for my Constraints but I don´t habe acess to it.  (see.Figure)

How can I use the ConstraintLimits with a C# Code?

What is the difference between C# and VBA in this case?

Using Autodesk Inventor Professional 2021 and Visual Studio 2019.

Hope someone can help me.

Thanks a lot.

[laszlo.nagy · Accepted solution]

I think "AssemblyConstraint" Object doesn't have this property ("ConstraintLimits")
https://help.autodesk.com/view/INVNTOR/2020/ENU/?guid=GUID-BF70CF3D-0631-44FE-B31B-21E380F067FE

Only specified Constraint Objects have this property
https://help.autodesk.com/view/INVNTOR/2020/ENU/?guid=GUID-F568FC0E-6CE0-4408-9713-091E7E9E8EDA

see the "Accessed From" List

[laszlo.nagy · Accepted solution]

In VB you can do this way ( I don't know C#)

For each obj in  oTempOcc.Constraints

  bMaximumEnabled =  obj.ConstraintLimits.MaximumEnabled

next obj

(or you have to declare specific variable, with the right type)

[sebastian.Flierl7B6DQ]

Thank you for your answer.

I have to declare the variable with the right type in C#.

So if I understand correct, i have to do it like this:

1. Identify the type of the Assembly Constraint (AngleConstraint e.g.)

2. Then I can use a variable with the right type (AngleConstraint) to get acess to the ConstraintLimits.

I will try this and give you a feedback.

[dutt.thakar · Accepted solution]

@sebastian.Flierl7B6DQ 

I think you need to be quite specific with constraints here, See the below snapshot where I have tested with a Flush constraint in C# and Inventor 2021, I am able to access the property and also able to read the value as well.

 

Hope this will help you.

[sebastian.Flierl7B6DQ]

Thank you both for your answers. This really helped me.

Now i use a dynamic variable to avoid the differetiation of the specific constraints typs.