Add new detail record in MasterDetail RadGridView

[Ľubomír]

Hi,

I am trying to add new record into Details in Master Details RadGridView (Based on Telerik Demos/GridView/Editing/Entity Framework CRUD). I added option to add new detail record into master, in row details grid view new row with message "Click here to ad new item" appeared. After clicking on message an filling data in GridViewAddingNewEventArgs, I see new record in the details, but when I try to save it with dbContext.SaveChanges(), I've got message in output window about SQL update statement instead of insert (I always got the EntityFrameworkCore.DBUpdateConcurrencyException). 

 

[Ľubomír]

Table has identity column and in code, we set the identity value and it cannot be set in code.