Csharp/CSharp Tutorial/Development/AppSettingsReader

For programmatic access to .NET *.config files

<source lang="csharp">using System; using System.Configuration; class MainClass {

 static void Main(string[] args)
 {
   AppSettingsReader ar = new AppSettingsReader();
   Console.WriteLine("Here is your conn string");
   Console.WriteLine(ar.GetValue("appConStr", typeof(string)));
   Console.WriteLine();
   int numbOfTimes = (int)ar.GetValue("intValue", typeof(int));
   for(int i = 0; i < numbOfTimes; i++)
     Console.WriteLine("Yo!");
 }

} /* <?xml version="1.0" encoding="utf-8" ?> <configuration>

 <appSettings>
   <add key="appConStr" value="server=localhost;uid=sa;pwd=;database=Cars" />
   <add key="intValue" value="4" />
 </appSettings>

</configuration>

• /</source>

Store ConnectionStringConfig solution

<source lang="csharp">using System; using System.Data; using System.Data.SqlClient; using System.Configuration;

   class Program
   {
       static void Main(string[] args)
       {
           foreach (ConnectionStringSettings css in ConfigurationManager.ConnectionStrings)
           {
               Console.WriteLine(css.Name);
               Console.WriteLine(css.ProviderName);
               Console.WriteLine(css.ConnectionString);
           }
           string sqlConnectString =ConfigurationManager.ConnectionStrings["AdventureWorks"].ConnectionString;
           SqlConnection connection = new SqlConnection(sqlConnectString);
           connection.Open(  );
           Console.WriteLine("Connection string state = {0}", connection.State);
           connection.Close(  );
           Console.WriteLine("Connection string state = {0}", connection.State);
       }
   }</source>

Use AppSettingsReader to load settings from app.config

<source lang="csharp">using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; public class MainClass {

 [STAThread]
 static void Main() 
 {
   System.Configuration.AppSettingsReader configurationAppSettings = new System.Configuration.AppSettingsReader();
   Console.WriteLine((string)(configurationAppSettings.GetValue("label1.Text", typeof(string))));
 }

} /* app.config <?xml version="1.0" encoding="Windows-1252"?> <configuration>

 <appSettings>
   
   
   <add key="label1.Text" value="label1" />
 </appSettings>

</configuration>

• /</source>