I Am A Beginner For Mvc Framework.I Was Create Crud Application Using Mvc4(Entityframework5)Using Database First Approach Its Working Fine,But I Want To Add The New Column(Field)In My Db Please Helpme

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I am a beginner for MVC framework.i was create crud application using Mvc4(entityframework5)using database first approach its working fine,But i want to add the new column(field)in my db please helpme

Posted 24-Jan-14 23:29pm

ilaya muthumanickam

Updated 25-Jan-14 2:09am

André Kraak

v2

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SP HINGU · Answer 1 · 2014-01-25T00:47:00

Solution 1

Just change your model with adding new column(field) in model class of your table and delete current database and run your application then it will create new database with new column added in database

But if you want to add column(field) without deleting existing database then you have to go through
'Code First Migration' (http://msdn.microsoft.com/en-us/data/jj554735.aspx[^]

hope this help.

Posted 25-Jan-14 0:47am

SP HINGU

Updated 25-Jan-14 2:08am

v2

Comments

ilaya muthumanickam 25-Jan-14 7:23am

I was trying code first also have the same problem we don't change the existing database.If suppose add the column it notify the error you have to delete the existing database....

SP HINGU 25-Jan-14 8:10am

when you are using code first , you don't need to add column in database table. instead of add field in model class.

ilaya muthumanickam 25-Jan-14 7:29am

please send any sample project regarding this particular issue..

SP HINGU 25-Jan-14 7:45am

after adding new column(Field) in you model class
go Through these
In VS, go to Tools>Library package Manager > Package Manager Console
Type these command one by one which will automatically update your database.

Enable-Migrations –EnableAutomaticMigrations

Add-Migration anyname

Update-Database

ilaya muthumanickam 27-Jan-14 7:03am

Thanks for ur kind reply i will try it now.............