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I solved my problem... By mistake the details table was declared as "OneToOne" - I understand that in this case there is no need for the details to be a grid... As soon as I ficed the details table to "OneToMany" (and refresged my dbml) - the DataGridOption was available for the Details table
Maybe this will help someone else...
Hello - i want to create datagridviews from datasource (C#). Some tables have both the DataGridview and the Details options, some table have only the Details option. How come?
Thanks in advance Gil