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C# .Net Access Properties by Key (to save time)

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Message 1 of 4
Robert.MislerXEDWT
505 Views, 3 Replies

C# .Net Access Properties by Key (to save time)

Dear Inventors,

 

while coding my Inventor-Plugin I hit a problem:

 

In order to identify parts in my company, there is an ID in the "Inventor User Defined Properties".

Now in order to extract the ID, I want to access the PropertySet using my property name. In VBA no problem with the .Item() method. But this doesn't exist in the .net API?

 

The only method I found that works is:

 

foreach (Property _p in (Inventor.PropertySet)_ps)
                {
                    try
                    {
                        if (_p.Name == "PART_ID")
                        {
                            id = _p.Value.ToString();
                            return id;
                        }
                    }
                    catch { }
                }

 

 

But that is way too slow for my application (I have to iterate 1000+ parts).

So then I fount the GetPropertyInfo() function of the PropertySet - but using that gives me a "Object reference not set to an instance..." error?

 

Inventor.PropertySet _psc = ((Inventor.PropertySet)_ps);
                    _psc.GetPropertyInfo(out int[] pids, out string[] Names, out object[] Values);
// fails with Object reference not set to an instance... error
                    if (pids != null)
                    {
                        id = Values[Array.IndexOf(Names, "PART_ID")].ToString();

                    }

 

 

So what is your advice to most efficiently get one Property from a parts PropertySet in C#?

 

Thank you so much,

 

Robert

3 REPLIES 3
Message 2 of 4

Ok sorry for my post, maybe it'll be helpful to others at least.

ChatGPT solved it:

What is the most efficient way to get a Property by its Name in a PropertySet in the Inventor C# API?
 

Answer:

The most efficient way to get a Property by its Name in a PropertySet in the Inventor C# API is to use the Item property of the PropertySet, which uses an indexer to access the properties in the set. The indexer takes a string parameter representing the name of the property you want to retrieve. For example, if you have a PropertySet object named "myPropSet" and you want to retrieve a property named "MyProp", you can use the following code:

 

Inventor.Property myProp = myPropSet["MyProp"];
 

This will retrieve the property with the name "MyProp" from the "myPropSet" PropertySet, if it exists. If the property does not exist in the set, an exception will be thrown.

Message 3 of 4

You can access iProperties directly. Here is sample how to access Part Number and your user defined iProperty

 

 

doc.PropertySets["{32853F0F-3444-11D1-9E93-0060B03C1CA6}"]["Part Number"].Value
doc.PropertySets["{D5CDD505-2E9C-101B-9397-08002B2CF9AE}"]["PART_ID"].Value

 

Available PropertySet IDs

 

{F29F85E0-4FF9-1068-AB91-08002B27B3D9}	Inventor Summary Information    
{D5CDD502-2E9C-101B-9397-08002B2CF9AE}	Inventor Document Summary Information   
{32853F0F-3444-11D1-9E93-0060B03C1CA6}	Design Tracking Properties  
{D5CDD505-2E9C-101B-9397-08002B2CF9AE}	Inventor User Defined Properties    

 

 

Message 4 of 4

Thank you so much!!! It works great. Somehow I wasn't able to find that information by myself...

 

 

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