Read last line of text file vb.net

It has to start at the beginning of a file, and it can only continue on towards the end of that file. The workaround here is that we actually do read the entire script from beginning to end. When we echo back the value of that variable it will look like we read only the last line especially because, if nothing else, the FileSystemObject is pretty fast. We then create an instance of the Scripting. That brings us to this block of code:. Each time we read in a line we replace the value of the variable strLine with the text we just read.

For example, suppose our text file consists of three lines:. Inside our loop we read in line 1, and thus assign the value A to strLine. We loop around and read the second line, meaning the value B gets assigned to strLine. Archived Forums. Visual Basic. Not for VB6 questions. Sign in to vote. Tuesday, February 5, PM. Length - 1 The code reads the text file and creates an array of Strings with one line in each element of the array.

Then it copies the first line into one TextBox and the last line into the other. Note that there is no way to find the last line of a text file without reading the whole file in some way. If your text file is hundreds of megabytes long, you might not want to read it all into memory at the same time.

That seems unlikely, but if that is the case, let us know and we can show you how to just read one line at a time. Hi, No miracle solution, you'll have to read the whole file to reach the last line. First ' lines. Last ' lines. ReadLine Do Until reader. EndOfStream ' replace "previous" last line with "current" read line , ' hence at end of loop lastLine will contain the "real" last line.

ReadLine Loop End Using Typically the second approach is better if the file are large because you don't have to load the whole file in memory at once. Post as a guest Name.

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Read a specific line from file. Read a. Layout: fixed fluid. Web04 2. Strip HTML. Encode HTML.