Develop Reference

Problem calling a second .config for keys in C#

I need a second .config to manage alot of keys. I tried using
<configSections>
<section name="apiConnection" type="CustomConfig.apiConnectionSection, CustomConfig" />
</configSections>
<apiConnection configSource ="ApiConnection.config"/>
Where "ApiConnection.config" is my .config file to manage keys but this didn't work.
Then i tried the "file" property in appSettings.
<appSettings file="ApiConnection.config">
This didn't work either. I Tried with:
../ApiConnection.config
~/ApiConnection.config
But nothing...
Some ideas?
The program doesnt break, just not show me the keys when i try with the ConfigurationManager.
https://i.stack.imgur.com/6xHK2.png
<img src= https://i.stack.imgur.com/6xHK2.png/>
EDIT
My file is in root path (with web.config)
The file looks like
<?xml version="1.0" encoding="utf-8"?>
<appSettings>
<add key="Secret" value="z8xyHkN3Eju2TS9u-4MXeI2AbZiuTsF7xYJcjIJ" />
<add key="Audience" value="keyforms"/>
</appSettings>

Ok I think I know what your problem is based on your last comment.
This code is creating a new configuration section called apiConnection.
<configSections>
<section name="apiConnection" type="CustomConfig.apiConnectionSection, CustomConfig" />
</configSections>
<apiConnection configSource ="ApiConnection.config"/>
This section's values will not be contained in app settings. So you won't be able to access it via
ConfigurationManager.AppSettings
You will need to access it in a different manner. Now the exact manner will depend on your implementation of CustomConfig.apiConnectionSection and CustomConfig. I would search your code to find the class that defines how this works.
This example shows how to pull values from a custom config section, SecureAppSettings that uses the NameValueCollection in the same manner as AppSettings. You will have to do some digging to figure out what Types you will need to utilize.
NameValueCollection section = (NameValueCollection)ConfigurationManager.GetSection("secureAppSettings");
string userName = section["userName"];

I want to get different tags of App.config File in C#

I have to get string inside Setting-> Value in C#. How to reach there through code and fetch that value from App.config file. Please help me. Thank you.
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=4.0.0.0,Culture=neutral, PublicKeyToken=b77a5c561934e089" >
<section name="MyApplication.Properties.Settings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</sectionGroup>
</configSections>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
</startup>
<applicationSettings>
<MyApplication.Properties.Settings>
**<setting name="ConnectionString" serializeAs="String">
<value>server=127.0.0.1;uid=root;pwd=root;database=MyApplication_db;</
</setting>**
</VASI_Application.Properties.Settings>
</applicationSettings>
</configuration>

You can use the following code:
var section = (ClientSettingsSection)ConfigurationManager.GetSection("applicationSettings/MyApplication.Properties.Settings");
var settingElement = section.Settings.Get("ConnectionString");
var settingValue = settingElement.Value.ValueXml.InnerText;
// settingValue equals "server=127.0.0.1;uid=root;pwd=root;database=MyApplication_db;"
First, you retrieve the ClientSettingsSection section. The name of the section is a combination of the name of the "applicationSettings" section and its inner "MyApplication.Properties.Settings" section. Then, you retrieve the actual settings by calling Settings.Get("ConnectionString") on the returned ClientSettingsSection instance. Finally, you can use the Value.ValueXml.InnerText property of the returned setting to get to the actual value.
By the way, you have two small errors in your XML file:
The <MyApplication.Properties.Settings> element in incorrectly closed with </VASI_Application.Properties.Settings>
The <value> element is not correctly closed with </value>

Don't you have the property ConnectionString?
As documented here, usually you can access it in this way:
var setting = Properties.Settings.Default.ConnectionString;
By the way, your application tag starts with MyApplication.Properties.Settings but ends with VASI_Application.Properties.Settings

If you do actually want to go ahead with a custom config file section like in your example then you will need to follow this Microsoft guide for creating custom configuration sections.
https://msdn.microsoft.com/en-us/library/2tw134k3.aspx
If you get stuck following this guide then raise another question.

Getting section filtering to xml attribute

I want to select SMS section block according to tip attribute of SMS xml.
Currently: ConfigurationManager.GetSection("Logger/Sms") works but is there any way to get section like ConfigurationManager.GetSection("Logger/Sms[#tip='VF']")?
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<sectionGroup name="Logger">
<section name="Sms" type="caSectionTest.LogHandler, caSectionTest, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
</sectionGroup>
</configSections>
<Logger>
<Sms tip="Clickatell">
<icerik>Soğuk zincir uygulamasından gönderilen sms</icerik>
<telNo>9053123123123</telNo>
<api>3363050</api>
<user>pkUser</user>
<pass>passhm</pass>
</Sms>
<Sms tip="Vodafone">
<icerik>write something into sms</icerik>
<telNo>905123123123</telNo>
<originator>336123</originator>
<user>ctUser</user>
<pass>9Mdfpass</pass>
</Sms>
</Logger>
</configuration>

You've probably long since moved on, but I created an XPath lookup for xml XElement recently available here: https://github.com/ChuckSavage/XmlLib/ If you want to use jsobo's comment to get the information you want.
You would use it like:
XElement root = XElement.Load(file);
XElement sms = root.XPathElement("//Sms[#tip={0}]", "VF"); // or "//Sms[#tip='VF']"
By using it with string.Format() syntax, you pass the type to the XPath as well, if you wanted to do a DateTime check, etc. I also find it easier for variable injections as well, instead of "//Sms[#tip='" + variable + "']". XPathElement is just XPath().FirstOrDefault() to return a single element.

GetSection object cannot be cast to IDictionary<>

I hope I'm just missing something simple. I need to read/write to a section of my exe.config file. I have this in my code:
var appConfiguration = ConfigurationManager.OpenExeConfiguration("Mytest.Console.exe");
var fileEnvironment = appConfiguration.GetSection("fileEnvironment");
and this is my app.config:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="fileEnvironment" type="System.Configuration.DictionarySectionHandler"/>
</configSections>
<fileEnvironment>
<add key="TestEntry1" value="A nice value"/>
<add key="TestEntry2" value="Another value"/>
</fileEnvironment>
</configuration>
My appConfiguration variable is returned as {System.Configuration.Configuration} and the "HasFile" property is set to true.
Without casting my variable "fileEnvironment" is returned as System.Configuration.DefaultSection. When I add as IDictionary<string, string> to the GetSection method fileEnvironment is null.
Any ideas?

I kept researching the dictionary issue and came up with this stackoverflow Q&A! It produces a collection instead of a dictionary, but points the way to a solution. Thanks for everyone's time.

According to this old article, when a section is implemented using DictionarySectionHandler, ConfigurationManager.GetSection() will return a non-generic IDictionary, and not an IDictionary<T,V>. That's why your cast failed.
Although in modern times, it looks like it actually returns a HashTable.

App.config - custom section not working

I recently started building a console version of a web application. I copied my custom sections from my web.config. to my app.config. When I go to get config information i get this error:
An error occurred creating the configuration section handler for x/y: Could not load type 'x' from assembly 'System.Configuration
The line that it is not liking is:
return ConfigurationManager.GetSection("X/Y") as Z;
Anyone run into something like this?
I was able to add
<add key="IsReadable" value="0"/>
in the appSettings and read it.
Addition:
I do actually have this defined about the custom section:
<configSections>
<sectionGroup name="x">
<section name="y" type="zzzzz"/>
</sectionGroup>
</configSections>

it sounds like your config-section handler is not defined
<configSection>
<section
name="YOUR_CLASS_NAME_HERE"
type="YOUR.NAMESPACE.CLASSNAME, YOUR.NAMESPACE, Version=1.1.0.0, Culture=neutral, PublicKeyToken=PUBLIC_TOKEN_ID_FROM_ASSEMBLY"
allowLocation="true"
allowDefinition="Everywhere"
/>
</configSection>

I had this identical issue recently. I created a custom sectiongroup for a web application(ran just fine), but when I ported this layer to a console app, the sectiongroup was failing.
You were correct in your question regarding how much of the "type" is required in your section definition. I've modified your configuration section with an example below:
<configSection>
<section
name="yourClassName"
type="your.namespace.className, your.assembly"
allowLocation="true"
allowDefinition="Everywhere" />
</configSection>
You'll notice, the type now has class name followed by assembly name. This is required for interaction outside of a web environment.
NOTE: Assembly name does not necessarily equal your namespace(for a given section).

If you want a custom config handler you have to define the class and reference it as shown by Steven Lowe. You can inherit from predefined handlers, or you can just use the value/key pair that is offered in appSetting section as you noted.

At the top of your file you require to have configSection tag with inside the section.
You can have sectionGroup too. Example:
<configuration>
<configSections>
<sectionGroup name="x">
<section name="y" type="a, b"/>
</sectionGroup>
<configSections>
</configuration>

This class works as a general custom configuration section handler for any type...
public class XmlConfigurator : IConfigurationSectionHandler
{
public object Create(object parent, object configContext, XmlNode section)
{
if (section == null) return null;
Type sectionType = Type.GetType((string)(section.CreateNavigator()).Evaluate("string(#configType)"));
XmlSerializer xs = new XmlSerializer(sectionType);
return xs.Deserialize(new XmlNodeReader(section));
}
}
In your app.config, add
<section name="NameofConfigSection" type="NameSpace.XmlConfigurator, NameSpace.Assembly"/>
And in the configuration section element, add an attribute to specify the type you want the root element deserialized into..
<?xml version="1.0" encoding="utf-8" ?>
<NameofConfigSection configType="NameSpace.NameofTypeToDeserializeInto, Namespace.Assembly" >
...
</NameofConfigSection>