Instead of using the AppendText Function, is there a streamwriter function that can be used to replace a line of text inside a textfile?

For example:

The textfile contains the following line:

Monkeys
12

I want to add "1" to the value of 12. If I use the AppendText function then the value of "1" will only be appended next to 12
instead of the value "1" added to 12.

Result:

Monkeys
12
1

instead of getting the result above, i want the to replace the previous value of 12 inside the textfile with the new value of "13". The result that I wanted to see inside the text file is the one below:


Monkeys
13


- where 13 is the new value

What function inside the streamreader and streamwriter class can be used to search and replace text inside a text file


Thank you very much. :)



Once A Newbie Always A Newbie

This is little bit complex question. First, you need to read the textfile, find string that can be transformed to integer and add number to it. After that, you need to rewrite existing document. I think there is no easy way, because you are mixing strings with integers (of course, all of those characters are chars after all, but only "12" is competetive to add number to it).

Maybe, you can try with function "replace", but it can replace only characters, and it doesn't have logic of adding number to number.
Example:
Dim str1 as New Streamreader
str1.Load("...")
replace(str1,"2", "3")

P.S. I don't know is this going to work, try it!