I've designed the entity model which has been mapped from the Sql server database. Later on, I've updated the Identity column in a particular table in database then I've done Update Model fromDatabase.
Unfortunatly, It wasn't updated in my Entity Model. What should I do to sort it out ?
Any help or suggestion are greatly appreciated !!!
Manually edit the EDMX either in Designer or Xml view, whichever is your preference.
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The project uses dbfirst approach. On my database I create and edit tables , Then I update the models from the database (edmx).
Is there a way to solve the problem when my models are more relevant than the customer base? It is very important to solve this with the help of EF.
That is, I need to in the customer database automatically added new fields in the tables and created the tables themselves if they were not
You can use Visual Studio over your database model through the designer interface and them updated your database. However, it's a procedure i don't recomend you to do, because depending what operations you want to perform on your database after being applied can rise errors related with some specific types and other specific things and then the roolback could not be so easy.
I have made a Entityframework model first to create tables to the database,
but then I found mistakes in my design, so I change the edmx model manually,
including changing the constraints between relationship as well as multiplicities.
So now, more error occur :
Error 3032: Problem in mapping fragments starting at lines ...,... are being mapped to the same rows in table Risk. Mapping conditions can be used to distinguish the rows that these types are mapped to.
Seems it's because the inconsistency between database and the model, there are lots of article discussing how to update the model from database, but not to update the database from the model. (Sorry if I missed a lot...)
To the person who's not familiar with T-SQL, the way convenient for me is just to update the model then expect the database will be updated consistently.
So please tell me is there any solution of this?
I generated model from existing database in c# via entity framework, but when i change database (for example add column to table) application stop work, because in model miss the new column, but i don´t need the new column. Is there any solution to generate model from database, but do not be independent to change in db?
Thanks.
I have a problem - when I update the data model edmx, the entities are not up to date. See the image below:
Generally speaking if you are doing Database-First you should update the database and let the data model refresh (right-click anywhere in the .edmx and select Update Model from Database...).
We want to update a ADO.Net Entity Data Model programmatically, so that the EDM is getting the newest version of the database (new tables, values etc.). I want to have a complete update of all stuff.
I know that it is possible to update the EDM, by clicking in the Model Designer, Update Model from Database.
Do you know any solution?
Thank you in advance.