winform讀取app.config．配置文件

添加引用

app.config文件內容

<configuration>
  <appSettings>
    <add key="ConnectionString" value="server=127.0.0.1;uid=sa;pwd=xx;database=test"/>
  </appSettings>
</configuration>

winform中

using System.Configuration;

......

string SqlConnectionStr =ConfigurationManager.AppSettings["ConnectionString"];