Methods for C # Read and write config profiles _c# tutorial

As shown below:

<?xml version= "1.0" encoding= "Utf-8"?>
<configuration>
 <appSettings>
  <add key= " ServerIP "value=" 127.0.0.1 "></add>
  <add key=" DataBase "value=" Warehousedb "></add>
  <add key= "user" value= "sa" ></add>
  <add key= "password" value= "sa" ></add>
 </ Appsettings>
</configuration>

Read-write class for Config profile

Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Text;
Using System.Text.RegularExpressions;
Using System.Configuration;
Using System.ServiceModel;

Using System.ServiceModel.Configuration; namespace Netutilitylib {public static class ConfigHelper {//Based on connection string name ConnectionName return data connection string public static S Tring Getconnectionstringsconfig (String connectionname) {//Specify config file read string file = System.Windows.Form
      S.application.executablepath;
      System.Configuration.Configuration config = configurationmanager.openexeconfiguration (file); string connectionString = config. Connectionstrings.connectionstrings[connectionname].
      Connectionstring.tostring ();
    return connectionString; ///<summary>///Update connection string///</summary>///<param name= "NewName" > Connection string name &LT;/PARAM&G 
    T <param name= "newconstring" > Connection string content </param>///<param name= "Newprovidername" > Data provider name &Lt;/param> public static void Updateconnectionstringsconfig (String newName, String newconstring, String Newprovider
      Name) {///Specifies that config file reads string file = System.Windows.Forms.Application.ExecutablePath;

      Configuration config = configurationmanager.openexeconfiguration (file); BOOL exist = FALSE; Record if the connection string already exists///If the connection string you want to change already exists if (config).
      Connectionstrings.connectionstrings[newname]!= null) {exist = true; //If the connection string already exists, first delete it if (exist) {config.
      ConnectionStrings.ConnectionStrings.Remove (NewName); //Create a new connection string instance connectionstringsettings mysettings = new Connectionstringsettings (NewName, Newconstr
      ING, newprovidername); 
      Adds a new connection string to the configuration file. Config.
      CONNECTIONSTRINGS.CONNECTIONSTRINGS.ADD (mysettings); Saves the change config to the configuration file.
      Save (configurationsavemode.modified); Force reload configuration file connectionstrings configuration section configurationmanager.refreshsection ("ConNectionstrings "); ///<summary>///Returns the value entry for the appsettings configuration section in *.exe.config file///</summary>///<param name= "
    Strkey "></param>///<returns></returns> public static string Getappconfig (String strkey)
      {string file = System.Windows.Forms.Application.ExecutablePath;
      Configuration config = configurationmanager.openexeconfiguration (file); foreach (string key in CONFIG.) AppSettings.Settings.AllKeys) {if (key = = strkey) {return CONFIG. Appsettings.settings[strkey].
        Value.tostring ();
    } return null; ///<summary>///appsettings configuration section in *.exe.config file adds a pair of key values to///</summary>///<param name= "n Ewkey "></param>///<param name=" newvalue "></param> public static void Updateappconfig (Strin
      G NewKey, String newvalue) {string file = System.Windows.Forms.Application.ExecutablePath; Configuration config = configurationmanager.openexeconfiguration (file);
      BOOL exist = FALSE; foreach (string key in CONFIG.)
        AppSettings.Settings.AllKeys) {if (key = = NewKey) {exist = true; } if (exist) {config.
      AppSettings.Settings.Remove (NewKey); } config.
      APPSETTINGS.SETTINGS.ADD (NewKey, newvalue); Config.
      Save (configurationsavemode.modified);
    Configurationmanager.refreshsection ("appSettings"); //Modify the IP address of all service endpoints under System.ServiceModel the public static void Updateservicemodelconfig (String configpath, String ser
      Verip) {Configuration config = configurationmanager.openexeconfiguration (configpath); ConfigurationSectionGroup sec = config.
      sectiongroups["System.ServiceModel"];
      Servicemodelsectiongroup Servicemodelsectiongroup = sec as Servicemodelsectiongroup;
      Clientsection clientsection = servicemodelsectiongroup.client; foreach (Channelendpointelement itEM in clientsection.endpoints} {string pattern = @ "\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b"; String address = Item.
        Address.tostring (); string replacement = string.
        Format ("{0}", ServerIP);
        Address = Regex.Replace (address, pattern, replacement); Item.
      Address = new Uri (address); } config.
      Save (configurationsavemode.modified);
    Configurationmanager.refreshsection ("System.ServiceModel"); //Modify IP addresses for services in App.Properties.Settings in applicationsettings public static void Updateconfig (string configpath, str
      ing ServerIP) {Configuration config = configurationmanager.openexeconfiguration (configpath); ConfigurationSectionGroup sec = config.
      sectiongroups["ApplicationSettings"]; ConfigurationSection configsection = sec.
      sections["DataService.Properties.Settings"];
      Clientsettingssection clientsettingssection = configsection as clientsettingssection;
     if (clientsettingssection!= null) {   Settingelement element1 = ClientSettingsSection.Settings.Get ("Dataservice_systemmanagerws_systemmanagerws");
          if (element1!= null) {clientSettingsSection.Settings.Remove (element1); String oldValue = Element1.
          VALUE.VALUEXML.INNERXML; Element1.
          VALUE.VALUEXML.INNERXML = Getnewip (OldValue, ServerIP);
        CLIENTSETTINGSSECTION.SETTINGS.ADD (ELEMENT1);
        } settingelement Element2 = ClientSettingsSection.Settings.Get ("Dataservice_equipmanagerws_equipmanagerws");
          if (Element2!= null) {clientSettingsSection.Settings.Remove (element2); String oldValue = Element2.
          VALUE.VALUEXML.INNERXML; Element2.
          VALUE.VALUEXML.INNERXML = Getnewip (OldValue, ServerIP);
        CLIENTSETTINGSSECTION.SETTINGS.ADD (Element2); } config.
      Save (configurationsavemode.modified);
    Configurationmanager.refreshsection ("ApplicationSettings"); } private static string Getnewip (sTring OldValue, String serverip) {string pattern = @ "\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b"; string replacement = string.
      Format ("{0}", ServerIP);
      String newvalue = Regex.Replace (OldValue, pattern, replacement);
    return newvalue; }
  }
}

The

Test code is as follows:

 class program {static void Main (string[] args) {try {
        string file = System.Windows.Forms.Application.ExecutablePath + ". config";
        string file1 = AppDomain.CurrentDomain.SetupInformation.ConfigurationFile;
        String ServerIP = Confighelper.getappconfig ("ServerIP");
        String db = Confighelper.getappconfig ("DataBase");
        String user = Confighelper.getappconfig ("user");

        string password = confighelper.getappconfig ("password");
        Console.WriteLine (ServerIP);
        Console.WriteLine (DB);
        Console.WriteLine (user);

        Console.WriteLine (password);
        Confighelper.updateappconfig ("ServerIP", "192.168.1.11");
        String Newip = Confighelper.getappconfig ("ServerIP");

        Console.WriteLine (NEWIP);
      Console.readkey (); The catch (Exception ex) {Console.WriteLine (ex).
      message); }
    }
  }

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