How do I read a text file faster VB.NET

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So i have a line of code here :

Dim scanbox As String
            scanbox = My.Computer.FileSystem.ReadAllText(Application.StartupPath & "\Database\TextFile1.dat").ToString

and its a huge file with like 6 million lines, And it takes ages to readalltext. So my question is there a faster way then my code to read it in seconds instead of like 20 secounds?

What I have tried:

I've looked around but its all differnt to what im looking for and im not sure what im going to do.

Posted 30-Oct-17 1:41am

CodingIsDreamy

Updated 30-Oct-17 1:55am

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Patrice T 30-Oct-17 7:49am

Yes, use a computer 20 times faster.

F-ES Sitecore 30-Oct-17 8:01am

Use something like a streamreader to read the file line by line. Google for examples.

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CPallini · Answer 1 · 2017-10-30T01:55:00

Solution 1

Do you really need to have all the file content at once in memory (I doubt you do)?
Depending on your scenario there might be several alternatives. As an example your application could pre-process the file (storing the results) and then work just on file updates (assuming it is a kind of log).

Posted 30-Oct-17 1:55am

CPallini

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CPallini 30-Oct-17 8:27am

We need to know your full scenario. You gave us no hint about.