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Views: 199 | Replies: 2 | Solved
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Join Date: May 2008
Posts: 3
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Newbie Poster
Does anyone know how to change the value of FS.Length? I keep getting that it's read only.
I need to read a file, let's say it's 100 bytes in size. After some data manipulation, the file becomes 40 bytes. When I write the file back , it writes the 40 bytes plus the remainder of the file thus the file remains at 100 bytes.
I know that if I read the file as File A, write it back as File B and then delete File A would probably work but I want to overwrite the existing file.
I have noticed the the value of FS.Length does not change although the data string that I am writing is 40 bytes.
I need to read a file, let's say it's 100 bytes in size. After some data manipulation, the file becomes 40 bytes. When I write the file back , it writes the 40 bytes plus the remainder of the file thus the file remains at 100 bytes.
I know that if I read the file as File A, write it back as File B and then delete File A would probably work but I want to overwrite the existing file.
I have noticed the the value of FS.Length does not change although the data string that I am writing is 40 bytes.
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Join Date: May 2008
Posts: 3
Reputation:
Rep Power: 0
Solved Threads: 0
Newbie Poster
Here's what I have so far:
fs = f.open
lBytes = fs.Length
Dim fileData(lBytes) As Byte
fs.Read(fileData, 0, lBytes)
ModifyFileData(fileData)
fs.Close()
fs = f.OpenWrite
fs.Write(fileData, 0, fileData.Length)
fs.Close()
The code may not be pretty but it's a start.
fs = f.open
lBytes = fs.Length
Dim fileData(lBytes) As Byte
fs.Read(fileData, 0, lBytes)
ModifyFileData(fileData)
fs.Close()
fs = f.OpenWrite
fs.Write(fileData, 0, fileData.Length)
fs.Close()
The code may not be pretty but it's a start.
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