How to add DefaultValue attribute

How to add DefaultValue attribute


I am using Entity Developer 7.2.10, in DB First on EF Core 7 and Data Annotations for Validation Framework.

I want to add the standard attribute:

to a boolean field, but this is not available in the properties at all.

I am aware that attributes can be added, by adding assembly, but I cannot identify which one this is in, and I would have thought this was a standard one anyway.

Please help.