- Visual studio shortcuts enter console app how to#
- Visual studio shortcuts enter console app code#
- Visual studio shortcuts enter console app free#
The data being stored and read is just text. We have these pieces of information saved in our two variables DataFile and Content. The two strings expected are the file name we are saving the data to, and what we want to write to the file. We'll be using the method definition that takes two arguments. If the file doesn't exist, it will create a new file and write the string passed in to it. If the target file already exists, it will overwrite the contents. Now that you have an example of reading in data from an external file, we can make an example of writing data to a text file with the File class method WriteAllText. } Data from external text file written to the console window Writing Data to External File If you have content in your data.txt file, you should see it displayed in the console window. When the value of the variable Content is later written to the console window, it will show either the data that was read in from the external file, or the default string that indicates the file is empty ("").Īfter the external data is read in, write it to the console window. if (File.Exists(DataFile))Ĭontent = File.ReadAllText(DataFile, "") ReadAllText(String): Opens a text file, reads all lines of the file, and then closes the file.īefore we read in data, we can check to make sure a specific file exists.Exists(String): Determines whether the specified file exists.System.IO namespace has a class, File, with two methods we'll use to read in content: Exists and ReadAllText.
Visual studio shortcuts enter console app code#
If you have any errors, compare your code to the example below. Test your code to make sure everything works. I'm initializing mine with the string "". string DataFile = "data.txt" Īdd another variable to hold the text that we will read in. Our next step is to add a variable to hold the file name. Your code should look something like this example: using System If this was a larger project we would want to structure our code better, with the majority of our code outside of the Program.cs file. Since this is a short example, we'll add our code to the Main method. You can use any of the following options: We want to keep the window from closing automatically, so add the ReadKey method inside of Main. After you create the example below, read the documentation at MSDN and try adding code to create and move through directories and sub-directories. Our example is simple, and only utilizes a few of the many options the namespace provides. We are including the System.IO namespace because it contains types that allow reading and writing to files. We won't need the other directives that Visual Studio automatically adds to the console template. We'll need only two using directives for this program: System and System.IO. Write some text inside so we'll have something to show when we pull content from it.
![visual studio shortcuts enter console app visual studio shortcuts enter console app](https://i.stack.imgur.com/rBxBL.png)
You can use any text editor you like, just make sure that the file is saved with the extension ".txt". File path to the Debug folder Text FileĬreate a new text file and save it as "data.txt". Once you have your project, navigate to the Debug folder. It will show you the path to your Visual Studio Projects folder. If you are unsure where Visual Studio saves your files, look at the location option in the New Project dialog box. For this walk through we'll keep our text file in that folder. If you are using Visual Studio there will be a Debug folder within your project directory.
![visual studio shortcuts enter console app visual studio shortcuts enter console app](https://i.stack.imgur.com/9F7xu.png)
Reading External Data New ProjectĬreate a new C# Console Application.
Visual studio shortcuts enter console app free#
If you want to use the same applications you can find links in the post Free Programming Development Options. Screenshots in this walk through are of the free applications Visual Studio and SciTE.
![visual studio shortcuts enter console app visual studio shortcuts enter console app](https://the.agilesql.club/assets/images/spark/debug-f5.png)
Visual studio shortcuts enter console app how to#
After we walk through how to read in data and write it back out, there is an example of how you could build a simple menu to access a file's information. We will create a console application that will let us display text from, and save data to, an external data file. External data: using text files to store data.