enable migrations

Explorer,Visual Studio The other versions display the Server Resource Manager.If you are using Visual Studio , use SQL Server Object Explorer. 1) in Server Explorer-"Data Connections" (Database administration Tools, database browser, Server Explorer, or SQL Server Object Explorer), right-click Developer\sqlexpress. Test.dbo, and then select Delete. such as 1, figure 2. Figure 1 is deleting the connection, and figure 2 is deleting the database. Figure 1Figure 22) Execute the menu- -"Tools --"

Express For Web VS displays the database resource manager, while Visual Studio 2012 displays the server resource manager in other versions. If you are using Visual Studio 2010, use the SQL Server Object Resource Manager.1) In Server Resource Manager> data connection (database management tools, database browsers, Server resource manager, or SQL Server Object Resource Manager), right-click developer \ sqlexpress. test. dbo, and then select Delete. For example, 1. Figure 2. Figure 1 deletes a conn

UserInfo Userinfo{get;set;}}Note: The difference is that we add a length limit to the TeacherName attribute. Next, we're going to start persisting this model into the database (we're just modifying the property now, the length of this field in the database is nvarchar (max), not nvarchar (10))1: Configure the database connection in config: 2: Open the NuGet console:3: Run command enable-migrationsThe following error may occur:Checking If the context

now, the length of this field in the database is nvarchar (max), not nvarchar (10))1: Configure the database connection in config:[HTML]View Plaincopyprint? connectionstrings > addname= "Testusersdb" connectionstring= " integratedsecurity=sspi; Persistsecurityinfo=false;initialcatalog=testusersdb;datasource=xcl-pc\sqlexpress " providername= "System.Data.SqlClient" /> connectionstrings> 2: Open the NuGet console:3: Run command

1>, in the Package Manager console, execute the statement:Pm> enable-migrations-enableautomaticmigrationsAfter execution succeeds, add the Migrations folder to the application code structure, and generate the class file Configuration.cs.2>, in the Package Manager console, execute the statement:Pm> add-migration InitialcreateAfter successful execution, new class f

1, VS, Package Manager console2, implementation,enable-migrationsError:Migrations has already been enabled in project ' DD '. To overwrite the existing migrations configuration with use The-force parameter.3, implementation,enable-migrations -forceError:The Migrations config

() //{ // Database.setinitializer (new DropcreatedatabaseifmodelchangesClick "Tools/Library Package Manager/Package Management Console" to open the package management console:If the Entity Framework is not added, first install the Entity Framework:Pm> Install-package EntityFrameworkPerformPm> enable-migrations-enableautomaticmigrationsThe Code first migration has been enabled for Project M

Manager Console, execute the following statement: PM> Enable-Migrations-EnableAutomaticMigrations The running result is as follows: The Configuration code is as follows: namespace Portal.Migrations{ using System; using System.Data.Entity; using System.Data.Entity.Migrations; using System.Linq; internal sealed class Configuration : DbMigrationsConfiguration Step 3: run the following statemen

the solution, open the Suite Manager console: After the pm> prompt executes the enable-migrations command to turn on the code first migrations function, we now ENTER: Enable-migrations, you can see the prompt command: We need to enable