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How can I fix it: " 'VARBINARY' is not a supported type for CAST" ?

Hi all,

I trying build a project with .NET and Entity Framework in the Code First method, but Caché return the error " 'VARBINARY' is not a supported type for CAST" when run this sql code:

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Introduction to .Net Gateway - use external .net library from Cache Object Script

Integrating Cache with .net may be difficult, as we need to know both technologies and tools involved. Let’s follow the simplest possible example and see the pitfalls lurking on our way.

 

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Connecting using factory

   

  The following code in .Net using  CacheObject.dll  version 2016.1.2.206 com library

 

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ASP.NET Identity Caché Provider — working with Identity via InterSystems Caché

Imagine that your .NET project uses the Caché DBMS and you need a fully-functional and reliable authorization system.

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Does InterSystems.Data.CacheClient.dll use TCP/IP via .Net Managed Provider or not?

Recently I came across a very strong statement to the effect that InterSystems.Data.CacheClient.dll library works fast because it does not open a TCP/IP connection, instead it works in the same process as a databa

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ODBC refuse to take credentials on the fly from a .NET applikation

Hi!

I'm trying to connect to one of our Ensemble servers Cache database from a C#-windows form . I'm running the client from my local computer with OS win7.  Using .NET FW ver 4.5.2 in the client.

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Unhelpful error messages when %SuperServer SSL certificate expires.

I have posted to aid others in diagnosing problem with SSL/TLS connections to superserver port from .NET client executable.

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Can I use Microsoft Office automation components with Cache?

Microsoft Office has components for using in third party applications: COM Objects for C++ and Interop Assemblies for .Net programming.

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Ensemble + .Net dll with MS Word

Hi,

We have created a dll with .Net that generates a MS Word document with a template. The .Net method works, we have tested it with Visual Studio and it generates the document.

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Passing a Dictionary (array of data types) from .Net to Caché

I need to pass an equivalent of .Net Dictionary<string, int> instance from .Net to Caché.

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Global Summit 2016 - Skyrocket Your .NET Application Development

Presenter: Jeff Semmens
Task: Model and access data as objects in .NET without designing the database first
Approach: Use InterSystems Entity Framework
 

Description: Come and experience how you can design your database model in .NET and evolve it over time by leveraging the Entity Framework.

Problem: Current bindings require database-first design. I cannot design my model in .NET.

Solution: The Entity Framework is an object-relational mapping framework that allows data-oriented applications to model and access their data as objects in .NET. Database- first is still supported but will fade away in future releases.

 

Content related to this session, including slides, video and additional learning content can be found here.

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Running thick client (.NET) in various environments - experience to share?

Hello all,

I know it is perhaps too vague question, but anyway:

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Advanced Techniques and Best Practices

Advanced Techniques and Best Practices using Caché .NET Provider. This module focuses on the various aspects worth considering when designing and programming an application that uses the Caché .NET Provider.

Caché, Interoperability, Interoperability.NET
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Using Caché .NET Provider via Proxy Classes

This module focuses on using the Caché .NET Generated Proxy Classes.

Caché, Interoperability, Interoperability.NET
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