how to write a text file in Maui

Question

how can we create text file using maui and access it?

How to write a text file somewhere on emulator or device in public or app folder?

Answer 1

Hello,

how can we create text file using maui and access it?
How to write a text file somewhere on emulator or device in public or app folder?

It is recommended to write/read a file in the app folder. You can use File system helpers to write/read text file.

Please check the following code to write text to a text file in the app folder. 

   public async void WirteTextToFile(string text, string targetFileName)  
                   {  
           // Write the file content to the app data directory  
           string targetFile = System.IO.Path.Combine(FileSystem.Current.AppDataDirectory, targetFileName);  
           using FileStream outputStream = System.IO.File.OpenWrite(targetFile);  
           using StreamWriter streamWriter = new StreamWriter(outputStream);  
           await streamWriter.WriteAsync(text);  
       }  

Please check the following code to read text from text file of app folder.

   public async Task<string> ReadTextFile(string targetFileName)  
       {  
           string targetFile = System.IO.Path.Combine(FileSystem.Current.AppDataDirectory, targetFileName);  
           using FileStream InputStream = System.IO.File.OpenRead(targetFile);  
           using StreamReader reader = new StreamReader(InputStream);  
           return await reader.ReadToEndAsync();  
       }  

Best Regards,

Leon Lu

---

If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Answer 2

This tutorial shows you how you can make a notepad with a save function and delete function, is that what you are looking for?
https://learn.microsoft.com/en-us/learn/modules/create-user-interface-xaml/