c# - Database not getting created on EntityFramework-CodeFirst Approach -

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i new entityframework.i trying create database using codefirst approach of entityframework. have code in dal layer here :

 [table("category")] public class category {     [key]     public int categoryid { get; set; }      [required]     [column(typename="varchar")]     [stringlength(200)]     public string categoryname { get; set; } }   public class databasecontext:dbcontext {     public databasecontext()         : base("dbconnection")     {       //added following still doesnt work       //database.setinitializer<databasecontext>(new createdatabaseifnotexists<databasecontext>());     }      public dbset<category> categories { get; set; } }

connection string in app.config file of dal layer

<connectionstrings> <add name="dbconnection"      connectionstring="data source=(localdb)\v11.0;initial catalog=dbpdtcgry;uid=admin;password=admin123;"       providername="system.data.sqlclient"></add>

this not create database in sql server management.but dbconnection log file & mdf file created in the app_data , able add,update , delete data.

am missing thing here??

may missed server=localhost\sqlserverinstancename in connection string, because of db created on app_data not in default folder of sql server


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