Everyone knows that ASP.NET provides a WebApplication configuration file web.config, allowing us to easily set up a web application, and add some units we often use in the AppSettings section, such as database connection string, etc. With the System.Configuration.configurationSetting class, we can easily read the values of these units, but you need some tips to change these values. Let's tell you how to change these units with the classes in System.Management at runtime. Value.
Now you have a WebApplication name called myWebApp, the virtual path is: http: // localhost / mywebapp, directory path is: c: / inetpub / wwwroot / myWebApp, where the appSettings in the configuration file web.config is set as follows:
Create a new Console application to add the following code:
Using system.management;
namespace ConsoleApplication1 {class Class1 {[STAThread] static void Main (string [] args) {ManagementObject appSet = new ManagementObject ( "root // NetFrameworkV1: appSettings.Directive = /" add / ", key = /" test / ", Selector = / "File: // c: /inetpub/wwrowroot/mywebapp/web.config/" "); console.writeline (String.Format (" Old Value: {0} ", Appset [" Value "]); Appset.SetPropertyValue ("Value", "New Value Was Set OK!"); appset.put (); console.writeline ("New Value Setted OK!"); console.read ();}}} is compiled and running, Then check if myWebapp / web.config has been successfully modified! ! ! :)
