C #------entityframework entity Load Database

I. SQL Server database creation table company, containing id,cname,isenabled three columns

Two. (1) vs Create a new Dxapplication project, named Companymanagesystem

(2) Under Project, right click "Manage NuGet Package", "Browse", "EntityFramework", click "Install"

(3) Create a new class PSContext.cs

Namespace companymanagesystem{    class Pscontext:dbcontext    {public        pscontext (): Base ("Name= Pscontext ") {} public        virtual dbset<company> companys {get; set;}        protected override void onmodelcreating (dbmodelbuilder modelBuilder)        {        }}    }    

(4) Create a new class Company.cs

namespace companymanagesystem.model{    [Table ("Company")] public    class company    {        public Guid ID {get; set;}        Public String CName {get; set;}        public bool IsEnabled {get; set;      }}}

(5) Code to add a database in app. Config

 <?xml version= 1.0   " Encoding="  utf-8   "?><configuration> <connectionStrings> <add name="  pscontext   " connectionstring="  data source=x450v-pc;initial catalog=date;integrated security=true; Multipleactiveresultsets=true; App=entityframework   providername="   system.data.sqlclient   "/> </connectionstrings></configuration> 

(6) Add the form Frm_showinfo.cs (note: The name in the Filedname is the same as the column name of the database, (name) inside the name to try not to take name)

To add a control:

 namespace   companymanagesystem{ Span style= "color: #0000ff;" >public  partial  class   Frm_showinfo:form {Pscontext _db  = new   Pscontext ();  public   Frm_showinfo () {Initia        Lizecomponent ();  private  void  frm_showinfo_load (object   sender, EventArgs e) {Compan Ygrid.datasource  = _db.companys.asnotracking ().        ToList (); }    }}

(7) Start Frm_showinfo.cs window in Program.cs

namespacecompanymanagesystem{Static classProgram {/// <summary>        ///The main entry point for the application. /// </summary>[STAThread]Static voidMain () {application.enablevisualstyles (); Application.setcompatibletextrenderingdefault (false);            Bonusskins.register ();            Skinmanager.enableformskins (); UserLookAndFeel.Default.SetSkinStyle ("DevExpress Style"); Application.Run (Newfrm_showinfo ()); }    }}

C #------entityframework entity Load Database