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C# model generated from datawindow - behavior change from PB2019R3 to PB2025
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  3.  .NET DataStore
  4.  C# Model generator
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  1. Dan Harrel
  2. .NET DataStore
  3. Monday, 14 July 2025 02:46 PM UTC

I touched on this issue as an "oh by the way" in my prior post:

https://community.appeon.com/qna/q-a/pb-2025-net-datastore-project-for-sql-anywhere-odbc-architecture-mismatch#reply-63265

... however the consequence of this behavior change is now coming to bite me.  Therefore, I thought I'd give it it's own thread.  

We have recently migrated our .NET Datastore environment from PB2019R3 to PB2025.  Our database is SQL Anywhere.  SnapDevelop 2019 functionality to generate a model from a datawindow generated SQL Anywhere type "smallint" into C# type "short?".  Using PB2025, C# models are generated from datawindows directly from within PB itself (very nice!).  However, PB2025 now generates SQL Anywhere "smallint" into C# type "int?".  

Our C# Web API that uses the new PB2025 generated model compiles without error - which was encouraging.  But we are running into an InvalidCastException on GetItem code such as the following stylized example:

short foo = mydw.GetItem<short>(0, "colnm");

We would now have to change "<short>" to "<int>". 

I think we have no choice but to retrofit all such cases.  Even if this is "fixed" within PB, we probably wouldn't have it on time.  

As a suggestion, you could create a .NET DataStore project setting called something like 'Generate small integers to "short"'.

 

Retrievewithmodel PB 2025
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