The name “Configuration” does not exist in the current context

When trying to register a database context in startup.cs

public void ConfigureServices(IServiceCollection services)
{
        services.AddMvc(option => option.EnableEndpointRouting = false);
        services.AddDbContext<PostDbContext>(options =>
        options.UseSqlServer(Configuration.GetConnectionString("PostDbContext")));
 }

I get error

The name "Configuration" does not exist in the current context.

All code examples are taken from the official Microsoft documentation.
Tutorials -> MVC -> Get started -> Add model.
ASP.NET Core version: 3.1
How fix it?

Answers:

Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

I have not defined a configuration.

public IConfiguration Configuration { get; }
public Startup(IConfiguration configuration)
{
    Configuration = configuration;
}

Method 2

This problem occurs because you have not defined Configuration which is an instance of IConfiguration interface like this-

public IConfiguration Configuration { get; }
public Startup(IConfiguration configuration)
{
   Configuration = configuration;
}

Here Configuration is important to define which checks configuration details.
For Ex.-Configuration.GetConnectionString(“Your Connection String”) checks the connection string from appsettings.json file to get or set data in database.

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0