app.config读取问题

Question

winform程序，.net2.0新建后都会有app.config文件，编译后生成xxx.exe.config文件，我知道在程序中可以通过configuration.AppSettings["DataBase"]来读取appsetting字节里面的内容，但如何读取<connectionStrings>段的内容？还有如何将textbox字段写入？附一个简单app.config
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <configSections>
    </configSections>
    <connectionStrings>
        <add name="abc.Properties.Settings.abcConnectionString"
            connectionString="Data Source=local;Initial Catalog=database;Persist Security Info=True;User ID=sa;Password="
            providerName="System.Data.SqlClient" />
    </connectionStrings>
  <appSettings>
    <add   key="DataBase"   value="Access"/>
  </appSettings>
</configuration>

Answer 1

刚发完就找到解决方法了，原来.net2.0用了新的类来处理，用Properties.Settings.Default.abcConnectionString就可以访问并且修改。
这帖子变散分了

Answer 2

for example:App.config<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <connectionStrings >
    <add name ="ConStr" connectionString ="server=.;database=student;uid=sa;pwd=0421" providerName ="System.Data.SqlClient"/>
  </connectionStrings>
</configuration>取得连接字符串:
            Console.WriteLine(ConfigurationManager.ConnectionStrings["ConStr"].ConnectionString);  输出:
server=.;database=student;uid=sa;pwd=0421
         

Answer 3

string a=System.Configuration.ConfigurationSettings.AppSettings[index]