entity framework - Why do I get "unable to generate the model" errors when adding tables in EF? -


working in team environment, created tables needed add (ef database first design).

i chose "update model database...", selected new tables, , got obscure error message:

unable generate model because of following exception: 'the value column 'datatype' in table 'tabledetails' dbnull.     unable cast object of type 'system.dbnull' type 'system.string'. '. 

this caused trying add table no primary key. update tables have primary key , shouldn't error anymore.

it nice if error made clear. nice if remembered set primary keys on tables when created them.

hopefully save others fruitless efforts had of searching answer.


Comments

Popular posts from this blog

.htaccess - First slash is removed after domain when entering a webpage in the browser -

Socket.connect doesn't throw exception in Android -

SPSS keyboard combination alters encoding -