Question

I am trying to perform a Substring function on a image filename.
The name format is in “images.png“.

I tried using Substring it only allow me to indicate the first character till the “n” character to perform the function.

Such that SubString(1,6).

But what I want is to get any character before the ..

For example “images.png“:

After the Substring function I should get “images“.

Answer 1

You can use LastIndexOf in conjunction with Substring:

myString.Substring(0, myString.LastIndexOf('.'))

Though the Path class has a method that will do this in a strongly typed manner, whether the passed in path has directories or not:

Path.GetFileNameWithoutExtension("images.png")