问题
I have this line
string sConnectionString = ConfigurationManager.ConnectionStrings["Hangfire"].ConnectionString;
And it requires to include System.Configuration
In which place of the project I have to add reference to System.Configuration
because I cannot find a classic place to do it under References
?
回答1:
The tutorial your're following is probably using Asp.Net Core targeting the full .Net Framework (4.6) that is capable of relying on System.Configuration
(that is not portable and not supported in CoreFX).
.Net Core projects (being cross-platform) use a different configuration model that is based on Microsoft.Extensions.Configuration rather than on System.Configuration
.
Assuming your Hangfire
connection-string is defined in your appsettings.json
:
{
"ConnectionStrings": {
"HangFire": "yourConnectionStringHere"
}
}
You can read it in your Startup.cs
:
public class Startup
{
public Startup(IHostingEnvironment env)
{
var builder = new ConfigurationBuilder()
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
this.Configuration = builder.Build();
var hangFireCS = this.Configuration.GetConnectionString("HangFire");
}
}
Also, you're gonna need the Microsoft.Extensions.Configuration.Json package to use the AddJsonFile()
extension method.
回答2:
@Dimi Right Click on References folder -> Add References -> Search configuration -> check on System.Configuration -> Click on ok.
then add Namespaces on your .cs file i.e
using System.Configuration;
来源:https://stackoverflow.com/questions/40764353/how-to-include-reference-to-assembly-in-asp-net-core-project