New to C# programming, and I'm kind of stuck right now. How would I create a simple program that let's me extract and display the data source value in connectionStrings. And lets me modify the Id and password? Am I on the right track with parsing
Document X = XDocument.Load("C:\Users\Odd_Creature\Desktop\SecureConfig\\UserProfiles\UserInfo.exe.config")
var configuration= X.Element("configuration").Element("connectionStrings");
var location = configuration.Descendants("").Attributes("").FirstOrDefault().Value;
doc.Save(xmlfile);
XMLFILE
<configuration>
<configProtectedData />
<system.diagnostics />
<system.windows.forms />
<uri />
<appSettings>
<add key="GenerateProfile" value="true" />
<add key="TestScore" value="30" />
<add key="TestApplicationName" value="User Account" />
</appSettings>
<connectionStrings>
<add name="MyExample.database" connectionString="data source=.\SQLEXPRESS;initial catalog=wadb;integrated security=false;encrypt=true;trustservercertificate=true;User Id=Tester;Password=Test1;"
providerName="System.Data.SqlClient" />
</connectionStrings>
This would be a brute force approach to parsing the connection string from an XML file.
static void Main(string[] args)
{
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load("settings.xml");
string connectionStrings = xmlDoc.GetElementsByTagName("connectionStrings")[0].InnerXml;
string tag = "connectionString=\"";
string connectionString = connectionStrings.Substring(connectionStrings.IndexOf(tag) + tag.Length);
string[] tokens = connectionString.Split(';');
Console.WriteLine(tokens.FirstOrDefault(t => t.Contains("data source=")));
Console.WriteLine(tokens.FirstOrDefault(t => t.Contains("User Id=")));
Console.WriteLine(tokens.FirstOrDefault(t => t.Contains("Password=")));
}
And the output would be:
data source=.\SQLEXPRESS
User Id=Tester
Password=Test1
With a little more code, you should be able to edit these fields, and then use xmlDoc.Save() to update your changes.
Related
I am trying to Deserialize XML configuration file stored in %LOCALAPPDATA%\Configuration\Configuration.XML. I want to read the key value section and store it in the local variable.
The XML file looks like this:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="FolderPath" value="C:\\Data" />
<add key="Name" value="xxx" />
<add key="Type" value="xxx" />
</appSettings>
</configuration>
ConfigurationManager.Appsettings.Get("FolderPath") does not work because the xml file is in the different location.
So I tried with the following code, which does not work.
var configFile = Path.Combine(Environment.GetEnvironmentVariable("LocalAppData"), "Configuration", "Configuration.XML")
var configuration = ConfigurationManager.OpenExeConfiguration(configFile);
var appSettings = configuration.GetSection("appSettings").SectionInformation;
Please help me to read the configuration.XML as shown above.
Thank you.
Thanks for your suggestions #jdweng.
I was able to solve the issue
var configFile = Path.Combine(Environment.GetEnvironmentVariable("LOCALAPPDATA"), "Configuration", "Configuration.XML"));
if (File.Exists(configFile))
{
ConfigurationDetails = new Dictionary<string, string>();
XDocument doc = XDocument.Load(configFile);
var elements = doc.Descendants("add");
foreach (var element in elements)
{
ConfigurationDetails.Add(element.Attribute("key").Value, element.Attribute("value").Value);
}
}
i have been checking around, trying to find a way to write to the exe.config-file.
I can read/write to area just fine, but since we use 2 different DLL's from siemens to automate some stuff, i need to add a bunch of paths in a different section of the exe.config-file.
This is how the config should look like in the structure.
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<appSettings>
<add key="Siemens.Engineering.dll" value="C:\Program Files (x86)\Siemens\Automation\Portal V13\PublicAPI\V13 SP1\Siemens.Engineering.dll" />
<add key="Siemens.Engineering.Hmi.dll" value="C:\Program Files (x86)\Siemens\Automation\Portal V13\PublicAPI\V13 SP1\Siemens.Engineering.Hmi.dll" />
<add key="TempDirectory" value="D:\Scania Oskarshamn\Alarm_text" />
<add key="AlarmTextPath" value="AlarmTexts" />
<add key="Auto.Compile" value="True" />
<add key="Auto.ExtractAlarms" value="True" />
<add key="Auto.ImportAlarms" value="True" />
<add key="Compile.HMI" value="changes" />
<add key="Lang1" value="sv-SE:Swedish (Sweden)" />
<add key="Lang2" value="en-GB:English (United Kingdom)" />
<add key="Lang3" value="pt-BR:Portugese (Brazil)" />
<add key="LangChecked" value="sv-SE:en-GB" />
</appSettings>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
</startup>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="Siemens.Engineering" culture="neutral" publicKeyToken="d29ec89bac048f84"/>
<codeBase version="1.2.0.0" href="FILE://C:\Program Files (x86)\Siemens\Automation\Portal V13\PublicAPI\V13 SP1\Siemens.Engineering.dll"/>
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="Siemens.Engineering.Hmi" culture="neutral" publicKeyToken="37b6e3a80df0900f"/>
<codeBase version="1.2.0.0" href="FILE://C:\Program Files (x86)\Siemens\Automation\Portal V13\PublicAPI\V13 SP1\Siemens.Engineering.Hmi.dll"/>
</dependentAssembly>
</assemblyBinding>
</runtime>
</configuration>
I need to change the href part in the tags, and if this section does not exist, i also need to add the whole structure below .
I just need to write these parts.
EDIT: Now i dont even need the paths in the config, using registry to lookup path and use AssemblyResolve to make it work.
Solved this by using:
public frmAutomate(AutoData autoData)
{
InitializeComponent();
AppDomain CurrentDomain = AppDomain.CurrentDomain;
CurrentDomain.AssemblyResolve += new ResolveEventHandler(MyResolver);
}
private static Assembly MyResolver(object sender, ResolveEventArgs args)
{
int index = args.Name.IndexOf(',');
if (index == -1)
{
return null;
}
string name = args.Name.Substring(0, index) + ".dll";
// Check for 64bit installation
RegistryKey filePathReg = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Wow6432Node\\Siemens\\Automation\\_InstalledSW\\TIAP13\\TIA_Opns");
// Check for 32bit installation
if (filePathReg == null)
filePathReg = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Siemens\\Automation\\_InstalledSW\\TIAP13\\TIA_Opns");
string filePath = filePathReg.GetValue("Path").ToString() + "PublicAPI\\V13 SP1";
string path = Path.Combine(filePath, name);
// User must provide the correct path
string fullPath = Path.GetFullPath(path);
if (File.Exists(fullPath))
{
return Assembly.LoadFrom(fullPath);
}
return null;
}
I am trying to update configuration files from other projects than the one I'm in.
The UpdateConfig() works fine, but the DeleteFromConfig() doesn't remove the entry.
Let's say I have an entry like this:
add key="someKey" value="oldValue" /
DeleteFromConfig() leaves the entry as before, but if I comment out the Remove line from UpdateConfig and try to change the value to 'newValue'it gives me this:
add key="someKey" value="oldValue,newValue" /
The AppSettings.Settings.Remove(key) line only removes the value, not the entire entry.
Is there a way to remove the whole thing?
private void UpdateConfig(string path, string key, string value)
{
Configuration config = ConfigurationManager.OpenExeConfiguration(path);
config.AppSettings.Settings.Remove(key);
config.AppSettings.Settings.Add(key, value);
config.Save(ConfigurationSaveMode.Modified);
}
private void DeleteFromConfig(string path, string key)
{
Configuration config = ConfigurationManager.OpenExeConfiguration(path);
config.AppSettings.Settings.Remove(key);
config.Save(ConfigurationSaveMode.Modified);
}
Delete the key1 from config using XmlDocument
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="key1" value="3" />
<add key="key2" value="1" />
</appSettings>
</configuration>
var xmlDoc = new XmlDocument();
xmlDoc.Load(AppDomain.CurrentDomain.SetupInformation.ConfigurationFile);
XmlNode keyNode1 = xmlDoc.SelectSingleNode("//appSettings/add[#key='key1']");
keyNode1.ParentNode.RemoveChild(keyNode1);
xmlDoc.Save(AppDomain.CurrentDomain.SetupInformation.ConfigurationFile);
ConfigurationManager.RefreshSection("appSettings");
I have a config file for my program as follows
<appSettings>
<add key="ShowDebugWindow" value="false"/>
<add key="AppDataSubFolder" value="DLI\Keymon"/>
<add key="KeymonSettingsFile" value="Keymon.xml"/>
<add key="KeymonSettingsFileExtension" value="XML"/>
</appSettings>
With some digging around I found out how I can A) check if that key exists B) add a new one if needed. Since my program is in Program Files I found out that to avoid having the config file saved to virtual store that I have to have my program run as admin. That is not allowable so I decided to make a console project that would fix this for me. Easy enough.
So i did this
public static int Main(string[] args)
{
FixConfigFile();
return 0;
}
private static void FixConfigFile()
{//warning if the program is writing to a protect area, the config file might be redirected to virtual store
UpdateSettingIfMissing("ShowDebugWindow", "false");
UpdateSettingIfMissing("AppDataSubFolder", "DLI\\Keymon");
UpdateSettingIfMissing("KeymonSettingsFile", "Keymon.xml");
UpdateSettingIfMissing("KeymonSettingsFileExtension", "XML");
UpdateSettingIfMissing("LeftButton1", "");
UpdateSettingIfMissing("RightButton1", "");
UpdateSettingIfMissing("FunctionButton1", "");
UpdateSettingIfMissing("FunctionButton2", "");
UpdateSettingIfMissing("FunctionButton3", "");
UpdateSettingIfMissing("FunctionButton4", "");
UpdateSettingIfMissing("FunctionButton5", "");
UpdateSettingIfMissing("FunctionButton6", "");
}
private static void UpdateSettingIfMissing(string key, string defaultValue)
{
var setting = ConfigurationManager.AppSettings[key];
if (setting == null)
{
UpdateSetting(key, defaultValue);
}
}
private static void UpdateSetting(string key, string value)
{
Configuration configuration = ConfigurationManager.OpenExeConfiguration(#"Keymon.exe");
configuration.AppSettings.Settings.Add(key, value);
configuration.Save(ConfigurationSaveMode.Minimal);
}
The config file then would look like this
<add key="ShowDebugWindow" value="false,false" />
<add key="AppDataSubFolder" value="DLI\Keymon" />
<add key="KeymonSettingsFile" value="Keymon.xml,Keymon.xml" />
<add key="KeymonSettingsFileExtension" value="XML,XML" />
<add key="LeftButton1" value="" />
<add key="RightButton1" value="" />
<add key="FunctionButton1" value="" />
<add key="FunctionButton2" value="" />
<add key="FunctionButton3" value="" />
<add key="FunctionButton4" value="" />
<add key="FunctionButton5" value="" />
<add key="FunctionButton6" value="" />
notice that the value now has "2" values that are comma separated... WHY??? So as a test I deleted all keys, and ran my program. The values are all correct now, but now keymon crashes because the key/values were not loaded. Which is strange because in keymon i run this..
if (RunFixer)
{
System.Diagnostics.Process.Start("KeymonConfigFixer.exe");
ConfigurationManager.RefreshSection("appSettings");
}
So i don't get it. What am I missing? why is it doing this? Help
It's because in UpdateSettingIfMissing you use ConfigurationManager.AppSettings[key] which opens the app settings for the current application (your console app) while in UpdateSetting you open the settings for Keymon.exe
I'm creating an application on .net framework 4.5
whenever i want to load the app config values (appSettings section) and write the changes, i don't see my changes if i refresh the section. What i am doing wrong? and how can i solve it?
code
private void LoadConfig()
{
NameValueCollection appSettings = ConfigurationManager.AppSettings;
for (int i = 0; i < appSettings.Count; i++)
{
switch (appSettings.GetKey(i))
{
case "initialCatalog":
txtInitialCatalog.Text = appSettings.GetValues(i)[0];
break;
case "dataSource":
txtDatasource.Text = appSettings.GetValues(i)[0];
break;
case "userName":
txtUsername.Text = appSettings.GetValues(i)[0];
break;
case "password":
txtPassword.Text = appSettings.GetValues(i)[0];
break;
case "portalUrl":
txtUrl.Text = appSettings.GetValues(i)[0];
break;
}
}
}
private void SaveConfig()
{
System.Configuration.Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
KeyValueConfigurationCollection appSettings = config.AppSettings.Settings;
appSettings["initialCatalog"].Value = txtInitialCatalog.Text;
appSettings["dataSource"].Value = txtDatasource.Text;
appSettings["userName"].Value = txtUsername.Text;
appSettings["password"].Value = txtPassword.Text;
appSettings["portalUrl"].Value = txtUrl.Text;
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection("appSettings");
}
App.config file
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
</startup>
<appSettings>
<add key="initialCatalog" value="a" />
<add key="dataSource" value="b" />
<add key="password" value="c" />
<add key="userName" value="d" />
<add key="portalUrl" value="e" />
<add key="poolingTime" value="60000" />
<add key="ClientSettingsProvider.ServiceUri" value="" />
</appSettings>
i call ReadConfig() when the forms is Activated and save the data when a button is pressed (Ok or Apply) i close the application i rerun it but no changes are made to the app.config file
any ideas???
I think what is happening is that you are testing in Visual Studio, it copys the App.Config to your Debug/Release directory and renames it YourApplication.vshost.exe.config which gets reset each time you start your application. Try running the executable outside of Visual Studio which will use the YourApplication.exe.config file and see if that works for you. Your Code is working for me and retaining your changes on application restart if I run it outside of Visual Studio.
usually, I do this:
...
config.AppSettings.Settings.Remove("TextBoxNumber");
config.AppSettings.Settings.Add("TextBoxNumber", "");
It works fine. I guess it is because one of your key is not in the app.config yet. You need Remove/Add it (like the above code), or, create the key in the app.config first.
====================
Update
Try this:
config.AppSettings.Settings["initialCatalog"].Value = txtInitialCatalog.Text;
instead of
appSettings["initialCatalog"].Value = txtInitialCatalog.Text;
Any difference?