Edit line in a Text File

[wythat]

Hi

I have a text file that has configuration paramaters in it.I need to replace a word after the "=" in an existing text file something like below:


usemodel = modelA

At the start of the program, the user will be asked what model they want to
use. (example modelA, modelB, modelC). Depending what they chose, the program will then open the config text file, search the usermodel entry and replace the line to the model they've chosen.
Can I ask how I do this in vb.net?

Thanks

 

[cjard]

read the file into an array
find the array element
change it
write the array back over the top of the old file

See File.ReadAllLines Method (System.IO) and File.WriteAllLines Method (System.IO)