从web.config获取连接字符串

Question

I use System.Configuration.ConfigurationManager.AppSettings["key1"] in settings.designer.cs file. It's working fine in the development but after I moved all the .dll files into production it is not working.

In web.config file I added app settings in development and production both. What is the problem?

Code from settings.designer.cs file

get
{
  return WebConfigurationManager.AppSettings["ConnectionString"];
  //return (AppSettings["ConnectionString"]);
  //return ((string)(this["ConnectionString"])); 
}

I tried all three return statements. 3rd return is working fine in both dev & prod but it is not rendering from web.config.

Code in web.config

<add key="ConnectionString" value="connection string values are given here">

Answer 1

Don't use WebConfigurationManager .

---

Use System.Configuration.ConfigurationManager.AppSettings["key"] instead to read key-value pair kept in Web.config, eg:

<configuration>
    <appSetttings>
        <add key="key1" value="value1" />
    </appSetttings>
</configuration>

and System.Configuration.ConfigurationManager.ConnectionStrings["name"].ConnectionString to read connection string, eg:

<configuration>
    <connectionStrings>
        <add name="name" connectionString="value1" />
    </connectionStrings>
</configuration>

Answer 2

您必须将配置设置（ connectionstring ）添加到上一个执行程序配置文件。