c# - 在运行时设置连接字符串 - EF Code First

Question

尝试在运行时使用连接字符串或将其从 App.config 中删除。但是我收到错误。

仅供引用:EF 6 CodeFirst

public class DfDbContext : DbContext
{
    public DfDbContext()
        : base(GetConnectionString())
    {

    }


    private static string GetConnectionString()
    {
        SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder();
        builder.DataSource = "xxxxx";
        builder.InitialCatalog = "xxxx";
        builder.UserID = "xxx";
        builder.Password = "xxxx";
        builder.MultipleActiveResultSets = true;
        builder.PersistSecurityInfo = true;
        return builder.ConnectionString.ToString();

    }
}

错误

An exception of type 'System.ArgumentException' occurred in System.Data.dll but was not handled in user code

Additional information: Keyword not supported: 'initial catalog'.

任何替代解决方案？

Answer 1

引用自link .一个有效的连接字符串应该如下所示

<add name="XXXX" 
     connectionString="Data Source=MONTGOMERY-XXXX;Initial Catalog=XXXX;Integrated Security=True;" 
     providerName="System.Data.SqlClient" />

我认为您漏掉了提供商名称。尝试添加它并检查