Question

I wish to add a new column to a table, usually I would add the column in SQL and then remove/add the table in the dbml to refresh its definition.

But if I try to delete the table I get

The selected class cannot be deleted because it is used as the return
type for one or more DataContext methods.

What is the best way to get around this to add a new column?

Thanks

Answer 1

You don’t need to remove/add the table in dbml to refresh its definition. Just right click on your existing entity on dbml designer -> “Add Property”.
(You can also do it on designer generated code file by adding new property)