Vb net read txt file to array

Frahaan Hussain. Arnold Higuit. Reading from and Writing to Text Files Advertisements. Previous Page. Next Page. Live Demo. Useful Video Courses. More Detail. NET - Hands On! This is a second line. NET program that uses File.

ReadLines Imports System. ReadLines "file. Choosing the best file-reading Function can be complicated. For small files, using a Function like File. ReadAllLines is sometimes faster—the memory cost of storing the entire file in memory at once is low.

Tip: File. ReadAllLines stores the entire file contents in a String array. ReadLines does not. However, for large files, using a Function like File.

ReadLines becomes superior. The memory pressure is reduced. Connect and share knowledge within a single location that is structured and easy to search. I am trying to read a text file in line by line and add it to an array, current code and output are below. How would I read it in properly, i.

Console App version of VB. Your code works, but you cannot print an entire array at once. You've got to iterate the array somehow and print each item separately or combine them into a single string. However what I don't understand is why you are writing in VB. NET, but are still using outdated functions and classes from the VB6 era:.

ArrayList can be replaced by a List Of T. LineInput with StreamReader. Or you can replace all the above with a regular array and a single call to File. Use ReadLines :. The ReadLines and ReadAllLines methods differ as follows: When you use ReadLines, you can start enumerating the collection of strings before the whole collection is returned; when you use ReadAllLines, you must wait for the whole array of strings be returned before you can access the array. Therefore, when you are working with very large files, ReadLines can be more efficient.

How are we doing? Please help us improve Stack Overflow. Take our short survey. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Reading from text file to array Ask Question. Asked 4 years ago. Active 4 years ago. Viewed 15k times. WriteLine quoteArray Console. The output is correct because you are not printing the contents of the array.

But ArrayList is antiquated as are those legacy File methods.