Blazor Wasm - Enable optimistic concurrency Problem

Radzen Studio Blazor WebAssembly
1

Hi,

I invested some time in a app. At the beginning I enabled optimistic concurrency option for sql server.

Later in the app I had a problem saving data by code. I just copied the code from another app and tried to figure out wat is wrong.

So I decided to add a crud page via radzen. In the crud page the problem was the same. Saving to the database was not possible. So I created 2 new apps. 1 with optimistic concurrency enabled and 1 disabled. In the enabled version it is not possible to save -> error unable to update

I use SQL Server 2012 express in this project. Maybe this is the problem?
Thanks.

2

Most probably there is a concurrency error, you can check that using the debugger. Please note that CRUD pages code is different depending if optimistic concurrency is enabled or not.