App.config file c# example

To add the App settings, we should open the app. The project keeps all the App specific settings inside the AppSettings tag. Like application settings, Connection string holds a separate section as shown below:.

In the above case, we enclose the database connection strings between ConnectionStrings tags. If you are not expertise in the connection string, watch the below video to place connection string in your App. Config file:. In the below event handler, we refer to the AppSettings map and get the needed setting value by supplying the key. We can mention the key in the text box, which is marked as 3 in the application screenshot.

The click event handler will display the read value in the Result Display Area. In this section, we will read the Connection String setting from the AppConfig file. The for this is below:. This connection string map takes the name as the key.

Look at our sample connection strings in the app. We fetch the actual connection string from the ConnectionStringSettings object using these keys. Once we have connection string setting, we show that in the display output. Now we will assign the fore color for the output display area using the AppConfig File. This setting shows a real-time example of how the config file will be used to change application behavior without re-compiling it.

We wrote the above code in the form load event handler. The code is like what you saw in section 6, but here we use the application setting to change the behavior of the text box. To demonstrate that they were stored and pulled correctly, their values are then printed to the console. HowTo C Howtos App. Config Example This tutorial will explain the App. A very basic App. Adding Connection Strings to App.

Config Example Now that we have discussed some of the concepts of App. C : using System; using System. DelftStack is a collective effort contributed by software geeks like you. Managed code can use the classes in the System. Configuration namespace to read settings from the configuration files, but not to write settings to those files. This topic describes the syntax of configuration files and provides information about the three types of configuration files: machine, application, and security.

Configuration files contain elements, which are logical data structures that set configuration information. Within a configuration file, you use tags to mark the beginning and end of an element. The machine configuration file, Machine. It then looks in the application configuration file.

To keep the machine configuration file manageable, it is best to put these settings in the application configuration file. However, putting the settings in the machine configuration file can make your system more maintainable.

For example, if you have a third-party component that both your client and server application uses, it is easier to put the settings for that component in one place. In this case, the machine configuration file is the appropriate place for the settings, so you don't have the same settings in two different files. For more information about how the common language runtime uses the machine configuration file for assembly binding, see How the Runtime Locates Assemblies.

An application configuration file contains settings that are specific to an app. The app uses a config file to save to and read from some values that could be used for future runs. I am going to use that in 3 environments. I have placed a key in the appsetting section and i am expecting the log4net Tutorial.

Tim Corey here is an additional logger that I have placed in our config file to log to the console messages that If you had an app. FilePath ; Console. I have built a utility with its own custom config file. When I use it in a console of winform application it works fine. Friday, June 02, PM. I referred this to add a config file for console project. I have successfully added app. I cannot reference System. Configuration Using external config files in.