#.NET

We are happy to present the bonuses page for the applications submitted to the InterSystems .Net, Java, Python, and JavaScript Contest!

See the results below.

Hi Developers!

Here are the technology bonuses for the InterSystems .Net, Java, Python, and JavaScript Contest that will give you extra points in the voting:

Hi Developers,

We are happy to announce the new InterSystems online programming contest:

🏆 InterSystems .Net, Java, Python, and JavaScript Contest 🏆

Duration: September 22 - October 12, 2025

Prize pool: $12,000

I'm following this guide as well as the sample.cs file and getting an error message on this line
cache_connection.Connect();

The error is:
Caught GlobalsException: lc_conn::connect_device returned Db_err: source: lc_conn::connect()  message: lc_conn::connect: CacheSecureStart returned -15: <ACCESSDENIED>

I've tried many variations of Namespace + Username + Password and they all result in that error, even though I can connect to the namespace just fine using other means. 

Any plans for ODBC 3.8 support?

Hello,

I'm using the .Net C# IRIS client and trying to create a HS.Data.OIDMap object which contains a $LIST property (.IdentityTypes). I am able to create the object using the .NET client, however when trying to create and assign the list object I get a "List cannot contain of type IrisObject".
Documentation for HS.Data.OIDMap https://docs.intersystems.com/irisforhealth20243/csp/documatic/%25CSP.Documatic.cls?LIBRARY=HSSYS&PRIVATE=1&CLASSNAME=HS.Data.OIDMap 

My question is two fold

I have been trying to get to grips with the new dot Net Gateway used in IRIS as the import of the DLL to construct proxy classes is no longer supported in IRIS I have a third party DLL that when I try to instantiate throws an error complaining about the class not instantiated as it does not support parameterless constructor .I am using this new 

set gateway = $system.external.getDotNetGateway()
do gateway.addToPath(myPath_"\DotNetGatewaySamples.dll")

I have an old .NET 4.5 project, working with database InterSystems.Cache. The project is deployed on a Windows server. Data is retrieved using the InterSystems.Data.CacheClient.dll library.

But now I'm planning migration of the project to .NET 8 to container with linux centos.

How can I get data from InterSystems.Cache in this case?

As I understand it, InterSystems.Data.CacheClient.dll is only for the .NET framework.

I am a volunteer at a nonprofit that is attempting to connect to a product that uses InterSystems Cache (Clinisys LIMS). I have not used this database before, but I have used many others (MS-SQL, Oracle, etc.). I am hoping IRIS is compatible enough with Cache for this project. 

I downloaded IRIS. I learned about Terminal [IRIS]. Using it I was able to create a new table, insert data, and retrieve it. I also used the Management Portal to query the new table. It also returned the data.