Vb read write file

File Dim oRead as System. StreamWriter class for writing to the text file are Write and WriteLine. The difference between these methods is that the WriteLine method appends a newline character at the end of the line while the Write method does not.

Both of these methods are overloaded to write various data types and to write formatted text to the file. The following example demonstrates how to use the WriteLine method: oWrite. The ability to format the output has been significantly improved over previous versions of Visual Basic. There are several overloaded methods for producing formatted text. Close The overloaded method used in these examples accepts a string to be formatted and then a parameter array of values to be used in the formatted string.

The first line writes a header for our report. Each curly brace set consists of two numbers. The first number is the index of the item to be displayed in the parameter array. Notice that the parameter array is zero based. The second number represents the size of the field in which the parameter will be printed. Alignment of the field can also be defined; positive values are left aligned and negative values are right aligned. The second line demonstrates how to format values of various data types.

The second field will output the current time formatted as PM. The third field will format the value So if the local machine were set for U.

Listing A shows the output of our sample code. Reading from a text file The System. StreamReader class supports several methods for reading text files and offers a way of determining whether you are at the end of the file that's different from previous versions of Visual Basic.

Line-by-line Reading a text file line-by-line is straightforward. We can read each line with a ReadLine method. ReadWrite, OpenShare.

Is there simpler form how to open file and read each word, eventual define that the first word will be store in to the string var1, the second in to the var2 and so on, and similar if we have a file with numbers so that I would like to read from this file and store each number in to the some variable.

So I wonder if there is something very similar also in visual basic? Improve this question. Jason Faulkner 6, 2 2 gold badges 25 25 silver badges 33 33 bronze badges. Pavol Namer Pavol Namer 75 2 2 silver badges 7 7 bronze badges.

I updated the title of your question and also re-tagged it to VB. Net instead of VBA. Add a comment. Active Oldest Votes. Hopefully these examples will be of some help. Add line. Split " " 1 Next ' Write the contents to a new file. ToArray If you are looking to examine each word, the code can become something like this: ' Read entire contents of file1.

For Each line In file1 ' Process each word within the line. For Each word In line. Split " " ' Do something with the word. WriteLine word Next ' Or process by word index. Length - 1 Console. I'd suggest reading the entire file using the. ReadAll method and then close it and do whatever you need to do with the data assuming you read the contents into a variable and then do a write to the same file and overwrite the file.

If you're concerned with having something go wrong when over-writing the current file you could always try to write it to a different file and throw an error if that doesn't work before trying to over-write the original. 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. Asked 12 years, 6 months ago. Active 5 years, 5 months ago. Viewed k times. I guess I need to have a good knowledge of the objects and properties concepts. Improve this question. Peter Mortensen Maddy Maddy.

Add a comment. Active Oldest Votes. ReadLine ' do something with strLine objOutFile. Write strLine Loop objOutFile. Close ts.

Close objFS. DeleteFile strFile objFS. Close objFile. MoveFile strTemp,strFile. Improve this answer. Only point is that you should use objOutFile. WriteLine Inp to output the same lines. ReadAll f. OpenTextFile filename, fsoForWriting f. Write text f. Stephen Quan Stephen Quan Both functions need the "f.

Close" method so that the files do not remain opened. ReadAll seems to have a filesize limit that other methods don't. Or at least my script crashes on files over 1GB or so Tester Tester 7, 12 12 gold badges 51 51 silver badges 74 74 bronze badges.