how to validate in Linq to Sql using Asp.net MVC 3

Question

i m using Linq to SQl for my project, i tried all CRUD operations (Create, Delete, Edit, details) its working, but how to perform validation, means adding Required , Range, and other common Validation using System. Data. Annotation class,

I don know how to do this, please help me in detail, as i am beginner, how should i validate all user input fields.

possible duplicate of ASP.NET MVC, Linq to SQL Data Annotation Validation — Bertrand Marron
– Bertrand Marron, Commented Aug 5, 2011 at 7:53

Muhammad Hasan Khan · Accepted Answer · 2011-08-05 07:56:34Z

0

Create a partial class for the entity and add a MetadataTypeAttribute on it. Then create the meta data class with object properties and then put annotations on them.

http://diegworld.blogspot.com/2011/05/using-dataannotations-to-validate.html

answered Aug 5, 2011 at 7:56

Muhammad Hasan Khan

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2 Comments

Ravi Gadag Over a year ago

i tried, that but i'm confused what to create as partial claass , how it should be named ? please can u explain in detail, i have a dataclasses1.dbml (linq to Sql file ), now how u add this metadata attirbute, please really waiting for help :(

Ravi Gadag Over a year ago

thank you. i got the solution by referening stackoverflow.com/questions/1535662/…

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