Where is app.config in c

The file has to be named "App. I do not know if other locations are possible, other names like application. I started with Visual Studio Code and created a new project with "dotnet new". No configuration file is created in this case, I am sure there are other cases. You may need to add a nuget package to be able to read the config file, in case of. ConfigurationManager --version 4. Config is an XML file that is used as a configuration file for your application.

In other words, you store inside it any setting that you may want to change without having to change code and recompiling. It is often used to store connection strings. See this MSDN article on how to do that. Take alook at this Thread.

Using app. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. What is App. How to use it? Ask Question. Asked 9 years ago. Active 1 year, 4 months ago. Viewed k times. Improve this question. Add a comment. Active Oldest Votes. Reading from the App. Config Connection strings have a predefined schema that you can use.

ConnectionString; Writing to the App. Note that ideally you would perform such configuration changes from a simple installer. Location of the App. NET Core New configuration options were introduced with. Configuration in ASP. NET Core Essential. When you run the application which contains the app. NET Frameworkv2. We can just pass the key inside the AppSettings and get the desired value from AppSettings section, as shown below.

You put the App. An xml file is best equivalent for app. If you change the Web. Config at runtime the Web Application will be restarted and all the users who are using the application currently will get an error message "Service Unavailable".

It is not recommended at all to change the Web. Config while the application is running. Forms; Then you can get the Connection String from the App. Config by using the ConnectionStrings property. Use one dependentAssembly element for each assembly. ConfigurationManager is the class which helps to read data from configurations.

Provides access to configuration files for client applications. Namespace: System. To use the ConfigurationManager class, your project must reference the System. Configuration assembly.

It is easy to configure Visual Studio Code to your liking through its various settings. At its simplest, the app. A " configuration section" is a snippet of XML with a schema meant to store some type of information. What is app config in C? Category: technology and computing browsers.

How do I open a config file? How to Edit a Configuration File in Windows. Very helpful article — thank you! Or must you manually edit the app. Config file for that? Within code we can then access them […]. Peter, how are the secrets kept from prying eyes, if the app. You have to think for this, and when you did, you usually consider you real-case scenario, that was having a deveolpment set of configuration often a database connection and a production configuration often just placeholders for connection parameters.

You have to resort to solutions that, as you can see on the internet range from visual studio extensions to custom transfomrations to batch files to replace the app. This is the major problem that i would like to be discussed. XML sucks. And now like free radicals it creeps in every piece of software and corrupts it. Microsoft what are you waiting for? Space is no problem since we are living in a terabyte world and it compressed to virtually the same size.

Schema validation sucks. This tightly binds producers and consumers. Compression is just a Bandaid. Most studies agree that this choice has a significant processing cost everywhere. In one of my previous posts, I wrote about the. NET build configuration system. I mentioned the app. In a web project i. NET you will use a similar file, the web. A lot of what I will cover in this article is applicable to web projects, but there are subtle differences.

Your code, at its best. Try CodeIt. An app. AppSettings AppSettings provide an easy way to access string values, based on a certain key. Take these appSettings for example: We can access this value by using this piece of code: As a side note: you will need to import the System.

ConnectionStrings The connectionStrings section is the place to put your connection strings to any databases you want to access. If you need to access the connection string directly, you can use code like this: Settings Remember how the AppSettings only provided us with string values?

To use this, double click the properties of your project: Then go to the settings tab. Custom Configuration Sections There is a next step in app. As you can see in the above example, the developer using the library first defines a new sectionGroup under the configSections tag then defines a section under that, pointing to the correct type that will handle the config section and finally provides the configuration details.

Luckily, there are ways around this: A call to ConfigurationManager. Reload ; Keep in mind that a new compilation or deployment can overwrite the changed values. Secrets You should consider not putting confidential information in your config files.

You can easily solve this by putting your secrets in separate files: See how both the appSettings and the connectionStrings point to another file? Another thing to remember is to tell the compiler to copy these files to the output directory: After that, you can use the appSettings and connectionStrings in your code like you did before. A Final Tip. Want to know if you're getting it right as you learn C?

Learn More. About the author. Peter Morlion.