#.NET

Hi Developers,

Please welcome the new video specially recorded by InterSystems Product Manager @Bob Kuszewski for the 3rd InterSystems Online Programming Contest on InterSystems IRIS Native API:

⏯ Using the IRIS Native API GitHub Template

https://www.youtube.com/embed/bowj02anRM8
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What’s the contest about?

In the last year, InterSystems added and expanded Native APIs for Java, .NET, Python, and Node.js. The Native API provides high speed access to globals, the ability to instantiate and use ObjectScript objects, and fine-grained control over transactions.

I am importing scriptlink wsdl in the form designer. I get the following error:

Error Importing WSDL. Please validate WSDL address. ERROR #6301: SAX XML Parser Error attribute value expected while processing Annonymous Stream at line 28 offset 73.

Please advise.

Thank you,

Chris Kennedy

Hi There,

I have Microsoft Visual Studio Community 2019 installed and tried to setup the entity framework as per Using Entity Framework with InterSystems IRIS Data Platform (https://learning.intersystems.com/course/view.php?id=1046) tutorial but I can't see the ISC data source in MS Visual Studio's Data source section. Does this mean that MS VS Community 2019 is not supported with the Entity Frmawork?

Hassan

While I can query the HL7 message class EnsLib.HL7.Message (EnsLib_HL7.Message for SQL) to my heart's content in the SQL Shell or the Management Portal's SQL page, I can't seem to SELECT anything other than ID/%Id from an ADO/ODBC client. Properties such as TimeCreated, Name, MessageTypeCategory, etc. all seem to prevent the query from ever completing EXCEPT when I provide the ID as part of the WHERE criteria.

This works fine in the Management Portal and Shell:

trying importing classDefinition to Iris via LoadStream() fails with
zLoadStream+1^%SYSTEM.OBJ.1 ----> InterSystems.Data.IRISClient.IRISException : Exception thrown on server (code = 1192)...

Code is here; use any valid exported ClassDefinition as File to test that:

I am developing a viewer for Crystal Reports using the Crystal Reports for Visual Studio (CR13SP26). I have also installed the latest ODBC Drivers for Cache, but when I connect some reports to the Cache database using a connection string, I get an error that I failed to retrieve data from the database, and it reports the Database Vendor Code 30. Has anyone used Crystal Reports connecting via a connection string and received this error? If so, how did you correct it?

Thank you,

Brian Cromwell

Happy new year! I’m Raj Singh, InterSystems’ product manager for Developer Experience and I’d love your feedback on how you use IDEs today and your thoughts for the future.

Some readers of my previous article, Caché eXTreme for .NET - direct access to globals from C#, wondered if you could access information not just from the same instance in which you’re working, but also from another instance on the same computer, or from an instance located on another computer in the same local network. Some theorized, correctly, that this would be possible using the Enterprise Cache Protocol (ECP). In this article I’m going to show how it can be done.

I have SQLCompute with SQLComputeCode on a couple of Properties in my class.

These work fin when I insert/update via ObjectScript or SQL from the ManagementPortal.

However, if I insert (create new record) via my C# app using the Caché ODBC DLL the SQLCompute is ignored, it does not run.

Is this expected InterSystems Caché behaviour? We are on latest IRIS platform.

Hello!
There is a class query “MemberStatusList” in the SYS.Mirror class that I would like to call from a .NET client application.
I know that means that there is also a generated class method called MemberStatusListFunc.
What is the best way if any exist to call them from a .NET application?
Just see if anything responded I tried using something like
…
IRIS iris = IRIS.CreateIRIS(conn);
var returnValue = iris.ClassMethodString("%SYSTEM.Mirror", "MemberStatusList", "NAMEOFTHEMIRROR")
---

In .NET Core you have an option to extend a session using a "sliding expiration". This means that if over half the time has passed and the user actively uses their session then the expiry timer gets reset and the user remains logged in. This can lead to the curious situation where you have an active authenticated user with an expired access token being used in data-access requests.

The .NET Core Identity model has an IPasswordHasher<> interface for for

• Hashing a password so that it can be stored in a database
• Verifying a provided plain-text password matches a previously stored hash.

I am getting invalid password errors during the login process when the .NET Core Identity model computes a hash from a plain text input and compares it to a password hash value I've returned from Caché. The default hashing algorithm is PBKDF2 with HMAC-SHA256, 128-bit salt, 256-bit subkey, and 10,000 iterations (detailed article on .NET Core Identity PasswordHasher). The algorithm Caché uses is probably different which may be why I am getting errors.

What would a sample DbContext look like and how would you register the DbContext in the Startup.cs ConfigureServices method?

Hi,

what is reason of this error (Not all parameters bound/registered ). this is not happening consistently.

those are class method parameters