- #ASP SQL SERVER CONNECTION STRING EXAMPLE HOW TO#
- #ASP SQL SERVER CONNECTION STRING EXAMPLE INSTALL#
connection string contains initialization information that is passed as a parameter from a data provider to a data source.
#ASP SQL SERVER CONNECTION STRING EXAMPLE INSTALL#
To do that first we need to install the following packages To Read the connection string, we need to initialize and build the instance of the IConfiguration. Select the property “Copy to output directory” and change the value “copy always” or “Copy if newer” Reading the Connection String in the. To do that select the appsettings.json and right-click to select the properties. The appsettings.json file is not copied to the output directory when you run the Console application in Visual Studio. The appsettings.json file is not created in the console applications. NET Core console application Appsettings.json in.
#ASP SQL SERVER CONNECTION STRING EXAMPLE HOW TO#
You can refer to the article how to setup dependency injection in. NET Core console Application, we need to set it up ourselves. The ASP.NET Core MVC Template configures the Dependency Injection automatically for us. Hence, we can inject it into the startup class using the constructor as shown below The IConfiguration is available to be injected via Dependency injection. To Read the from the configuration, we need an instance of IConfiguration object. Reading the Connection string in the startup class Hence we also need to read the Connection String in startup class. To do that we need to register the DBContext in the ConfigureServices method of the startup class. In MVC Application, the DBContext is injected using the Dependency Injection. You can create DBContext and configure it by passing the connection string in several ways depending on the type of application (like ASP.NET Core MVC Apps or Console Apps) and whether you want to make use of Dependency Injection or not. But naming it ConnectionStrings allows us to make use of the getConnectionString method of the IConfiguration object Passing Connection String to DBContext There is no requirement to name the section as “ConnectionStrings”. Hence each connection string is stored as a separate node under the section ConnectionStrings as shown below These name-value pairs into a structured hierarchy of sections.
The configuration is stored in name-value pairs. For example, holds the settings for the production environment and holds the settings for the development environment The appsettings.json file holds the settings that are used in the environment specified by the ASPNETCORE_ENVIRONMENT variable. The appsetting.json holds the settings that are common to all the environments like development, production & testing environment The appsettings.json can be created for each environment separately For this example, we will use the appsettings.json Connection string in appsettngs.json You can store connection string anywhere you wish to. The newer ASP.NET Core applications can read the configurations from the various sources like appsettings.json, user secrets, environment variables, command line arguments etc. The connection strings were stored in web.config file in older version of ASP.NET Applications. Passing the connection string to DBContext.Passing the Connection string to DBContext.Reading the Connection string in the startup class.