topic Re: Accessing Coded Domain List in ArcGIS Pro SDK Questions

Accessing Coded Domain List

JimmyBowden — Wed, 13 Apr 2022 23:08:29 GMT

I'm looking for a way to get a coded domain list based on it's name so that I can use on as combo box items in a custom dockpane or control. Am I missing the easy way to do this? There doesn't seem to be a way to do this from a workspace. There is a sample that shows how to query them directly from gdb_items in the database. I've also been able to access them through a feature but that isn't a very direct method. I'm currently hard coding the values and descriptions as shown in the image. I would rather not do that for obvious reasons.

Re: Accessing Coded Domain List

RichRuh — Thu, 14 Apr 2022 15:20:10 GMT

Hi Jimmy,

You can get a list of the domains in a geodatabase with the Geodatabase.GetDomains method. This returns an IReadOnlyList which you can search using a Linq query.

IReadOnlyList<Domain> domains = myGeodatabase.GetDomains();
Domain myDomain = domains.First(x => x.GetName() == myDomainName);

I hope this helps,

--Rich

Re: Accessing Coded Domain List

JimmyBowden — Thu, 14 Apr 2022 15:30:59 GMT

Wow I'm feeling very dense at the moment. I thought I looked on the geodatabase object, I guess I just missed it. Thanks for the prompt response @RichRuh

Re: Accessing Coded Domain List

JimmyBowden — Tue, 19 Apr 2022 20:15:47 GMT

In case someone stumbles on this post and needs a bit more here's an extension method to return the values of an Integer based coded value domain from a geodatabase as a dictionary.

public static Dictionary<int, string> GetDomainValuesInt(this Geodatabase geodatabase, string name) { Dictionary<int, string> retval = new Dictionary<int, string>(); IReadOnlyList<Domain> domains = geodatabase.GetDomains(); Domain namedomain = domains.FirstOrDefault(a => a.GetName().Equals(name, StringComparison.CurrentCultureIgnoreCase)); if (namedomain != null && namedomain is CodedValueDomain) { //need to cast the domain to CodedValueDomain to get the Value Pairs CodedValueDomain cvd = namedomain as CodedValueDomain; SortedList<object, string> valuePairs = cvd.GetCodedValuePairs(); foreach (var item in valuePairs) { if (int.TryParse(item.Key.ToString(), out int i)) { retval.Add(i, item.Value); } } } return retval; }

Re: Accessing Coded Domain List

KarthikAditya — Tue, 24 May 2022 14:17:14 GMT

Hi Rich,

How can the domains be accessed if the layers are loaded from a feature server and do not exist in a geodatabase? I searched the SDK guide here but could not find any method that can do this.

Re: Accessing Coded Domain List

RichRuh — Tue, 24 May 2022 17:39:50 GMT

Hi Karthik,

You can create a Geodatabase object from a feature service by creating a ServiceConnectionProperties object. You can then instantiate a Geodatabase using the Geodatabase(ServiceConnectionProperties) constructor.

Once you have a Geodatabase you can proceed as described above.

I hope this helps,

--Rich

Re: Accessing Coded Domain List

KarthikAditya — Wed, 25 May 2022 05:32:24 GMT

Thank you, Rich. That worked!