“Update Model from Database” does not see a type change

Question

I have several columns that I changed from Int to BigInt.

I opened up my EF model and did an \'Update Model from Database\' and expected to see those columns now be

Answer 1

Answer

For the specific scenario you mentioned, you will need to manually change the Type from Int32 to Int64.

There are a number of ways that this can be done, but the easiest is probably just to open the model (using the default editor) and change the Type of the property from Int32 to Int64.

Explanation (from MSDN Library)

The ADO.NET Entity Data Model Designer (Entity Designer) uses the Update Model Wizard to update an .edmx file from changes made to the database. The Update Model Wizard overwrites the storage model as part of this process. The Update Model Wizard also makes some changes to the conceptual model and mappings, but it only makes these changes when objects are added to the database. For example, new entity types are added to the conceptual model when tables are added to the database, and new properties are added to entity types when columns are added to a table. For details about what changes are made to the .edmx file, see Changes Made to an .edmx File by the Update Model Wizard.

For your scenario, the important thing to note is that the update model wizard is updating the .edmx file with your changes, but only to the storage model. When changes are made to the definition of existing columns, the conceptual model is not updated. For a complete description of changes made by the update model wizard, please see the "Changes Made to an .edmx File by the Update Model Wizard" link above.