Re: Saving configuration to file in C#?

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From: ORC (orc_at_sol.dk)
Date: 11/26/04

  • Next message: Geoff Callaghan: "Can't connect to device through ActiveSync" 
    Date: Fri, 26 Nov 2004 21:45:18 +0100

    Thanks Darren. Your code is very useful and a great start for me. How is the
    best way to create the document from within my application? How does the
    code react if the user changes the regional settings in the OS to e.g.
    french that uses comma as the dicimal symbol.

    Thanks
    Ole

    "Darren Shaffer" <darrenshaffer@discussions.microsoft.com> wrote in message
    news:%23kUnPlbyEHA.1292@TK2MSFTNGP10.phx.gbl...
    > Ole,
    >
    > A simple xml file can be used on device for this purpose and also as a
    place
    > to store/retrieve
    > any information you want to persist between invocations of your mobile
    app.
    > Below is a configuration
    > class I add to my projects and a sample XML file. Note that if you have
    > many fields to store, you may
    > want to refactor this code to use XmlTextReader and XmlTextWriter which
    are
    > more efficient than
    > XmlDocument on larger sets. The code below assumes your xml file is named
    > "config.xml".
    >
    > -Darren Shaffer
    >
    >
    ////////////////////////////////////////////////////////////////////////////
    ///////////////////////////////
    > <?xml version="1.0" encoding="utf-8" ?>
    > <configuation>
    > <appSettings key="MapPointDataSource" value="North America"/>
    > <appSettings key="MapPointCountry" value="United States"/>
    > <appSettings key="MapPointLanguage" value="en"/>
    > <appSettings key="MapStyle" value="Road"/>
    > <appSettings key="MapFont" value="Smaller"/>
    > <appSettings key="UnitOfMeasure" value="Metric - Kilometers"/>
    > <appSettings key="GPSPrecision" value="5"/>
    > <appSettings key="GPSSampleFreq" value="5"/>
    > <appSettings key="RefreshMap" value="true"/>
    > <appSettings key="LastLat" value="39.76547"/>
    > <appSettings key="LastLong" value="-104.97158"/>
    > <appSettings key="URL" value="http://staging.mappoint.net"/>
    > </configuation>
    >
    ////////////////////////////////////////////////////////////////////////////
    ///////////////////////////////
    > using System;
    > using System.IO;
    > using System.Reflection;
    > using System.Text;
    > using System.Xml;
    >
    > namespace Utilities
    > {
    > class Configuration
    > {
    > private static string _appPath =
    >
    Path.GetDirectoryName(Assembly.GetExecutingAssembly().GetModules()[0].FullyQ
    ualifiedName);
    > private static string _myConfigFile = _appPath + "\\config.xml";
    >
    > public Configuration()
    > {
    >
    > }
    > public static string GetAppSetting(string strKey)
    > {
    > string sValue = "";
    > XmlDocument configDocument = new XmlDocument();
    > configDocument.Load(_myConfigFile);
    >
    > foreach (XmlNode node in configDocument.ChildNodes)
    > {
    > foreach (XmlNode childnode in node.ChildNodes)
    > {
    > if
    > (childnode.Attributes["key"].Value.ToLower().Equals(strKey.ToLower()))
    > {
    > sValue = childnode.Attributes["value"].Value;
    > break;
    > }
    > }
    > if (sValue.Length > 0)
    > {
    > break;
    > }
    > }
    > return sValue;
    > }
    >
    > public static bool SetAppSetting(string sKey, string sValue)
    > {
    > if ( sKey == null || sValue == null )
    > return false;
    >
    > XmlDocument configDocument = new XmlDocument();
    > configDocument.Load(_myConfigFile);
    >
    > foreach (XmlNode node in configDocument.ChildNodes)
    > {
    > foreach (XmlNode childnode in node.ChildNodes)
    > {
    > if
    (childnode.Attributes["key"].Value.ToLower().Equals(sKey.ToLower()))
    > {
    > childnode.Attributes["value"].Value = sValue;
    > configDocument.Save(_myConfigFile);
    > return true;
    > }
    > }
    > }
    > return false;
    > }
    >
    > }
    > }
    >
    >
    >
    > "ORC" <orc@sol.dk> wrote in message
    > news:e41ANFbyEHA.1928@TK2MSFTNGP10.phx.gbl...
    > > Does anyone have an example of how to load and save fields in a class to
    a
    > > file in C# like e.g. this:
    > >
    > > public class Config
    > > {
    > > string Var1 = "default"; // default value of Var1
    > > int Var2 = 6; // default value of Var1
    > > }
    > >
    > > and could the two functions like e.g. SaveConfigToFile and
    > > LoadConfigFromFile (user defined names) be implemented in the class
    > > itself??
    > >
    > > Thanks - I really appreciate the help I got from these groups!
    > > Ole
    > >
    > >
    >
    >

  • Next message: Geoff Callaghan: "Can't connect to device through ActiveSync"

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