How can I add a number/text to a winform so that every copy of the application is uniquely identifia-CodePudding

I want to make a simple application for Windows that displays an image containing some contact info like email and phone numbers. I install the same application on multiple computers running Windows. However, for every copy of that application, I want it to contain a unique number (invoice number, for example) right above the image as text to help me identify the individual and their purchase to better address their complaint/issue.

I am unable to decide the best way to do so. Obviously, I need to change the text in the textbox for every subsequent build. I need it to be so that anyone can easily enter the unique ID without disturbing the source or causing issues with the code.

I need to add a functionality so that

There is a nested winform at first time execution that asks me to enter the unique ID
Once saved in the textbox, the unique ID permanently stays even if the system is restarted
Once saved, the individual cannot change the unique ID

Clearly, I'm fairly new to C# and I have just started to create simple applications integrating excel and word.

Is there any easy/better way to do this? I have been searching the internet for ideas/snippets of code with similar functionality, but could not find any.

I don't want to generate a new number here, I already have the numbers and need to enter them for every copy of the application.

Thanks!

CodePudding user response：

You need to use the user settings area to store the data.

https://docs.microsoft.com/en-us/previous-versions/aa730869(v=vs.80)?redirectedfrom=MSDN

CodePudding user response：

Use Settings.settings file with settings that are stored permanently. I have done a sample app for you to see how it works: https://drive.google.com/file/d/1TfJYYbtw23_3h6z-UmleuMxrCk4hyG7e/view?usp=sharing