Citation:
The Microsoft Jet database engine has an internal limit of 255 fields per query. As the Microsoft Jet database engine iterates through the records in an update query, it creates a field for the original value and a field for the updated value. When more than 127 fields are selected, it reaches the 255 field limit of a query.
Don't put more than 127 fields onAdd/Edit pages.
Il me semble que si la table comporte une clé primaire, on pourrait modifier l'UpdateCommand du DataAdapter en n'indiquant dans la clause "WHERE" que la clé primaire au lieu de tous les champs.