Applying data annotation on entity framework auto generated file

Question

I have generated entity framework designer classes . After Generating the designer what is the most nicest and cleanest way to apply data annotation to the properties there . I have 3 classes there

This post shows how to do it. stackoverflow.com/questions/4915957/… — John
– John, Commented Mar 30, 2011 at 15:30

Community · Accepted Answer · 2017-05-23 12:05:38Z

0

~~Open up the EF designer, click on whatever you want to give documentation to, and fill in the "Documentation" field in the properties tab.~~

Ah, you are talking about attributes, not annotations. See this stackoverflow post.

In short - you can't do it. If you absolutely need attributes, you'll have to write your own Entity classes (POCO), which is only supported in the new version of Entity Framework (in .Net 4.0)

edited May 23, 2017 at 12:05

CommunityBot

11 silver badge

answered Apr 29, 2010 at 16:33

BlueRaja - Danny Pflughoeft

86.2k36 gold badges208 silver badges296 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

maztt Over a year ago

Well can I write this in documentation [Required(ErrorMessage="Please Enter The GroupName")]? If not then where can i write these

maztt Over a year ago

I am entering this [Required(ErrorMessage="Please Enter The GroupName")] in the docomentation but it is coming in the file with the comments tag //

Collectives™ on Stack Overflow

Applying data annotation on entity framework auto generated file

1 Answer 1

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related