VB.net: overwrite everything in a text file
-2
in my VB.net Application id like to overwrite and add new content of a text file
What Code do I need to use?
Thanks
vb.net
asked Nov 21 '18 at 17:30
user99170
4
|
show 1 more comment
-2
in my VB.net Application id like to overwrite and add new content of a text file
What Code do I need to use?
Thanks
vb.net
asked Nov 21 '18 at 17:30
user99170
4
You could start looking here. There's a lot of piece missing. What type of file, what type of data, what's the new content, ...
– the_lotus
Nov 21 '18 at 17:32
as i said, a .txt file, and normal strings as data (plain text)
– user99170
Nov 21 '18 at 17:37
2
You can ReadAllText of the file. Do the changes from the resulting string. Then WriteAllText back to the file.
– the_lotus
Nov 21 '18 at 17:40
Check out File.Open(String, FileMode) Then check FileMode. It looks like the Truncate field of FileMode might do what you want.
– Mary
Nov 21 '18 at 18:03
Do some research on reading and writing text files in VB.NET. There's loads of information around. When you open a file for writing, the only options are overwriting or appending so there's no great mystery to how to overwrite. It's the default in most cases. You should ALWAYS be looking for existing information first and then ask here if you aren't able to make what you've learned work. SO is not a place to ask a question as the first option.
– jmcilhinney
Nov 22 '18 at 2:30
|
show 1 more comment
-2
-2
-2
in my VB.net Application id like to overwrite and add new content of a text file
What Code do I need to use?
Thanks
vb.net
asked Nov 21 '18 at 17:30
user99170
4
in my VB.net Application id like to overwrite and add new content of a text file
What Code do I need to use?
Thanks
vb.net
vb.net
asked Nov 21 '18 at 17:30
user99170
4
asked Nov 21 '18 at 17:30
user99170
4
asked Nov 21 '18 at 17:30
user99170
4
asked Nov 21 '18 at 17:30
user99170
4
asked Nov 21 '18 at 17:30
user99170
4
4
You could start looking here. There's a lot of piece missing. What type of file, what type of data, what's the new content, ...
– the_lotus
Nov 21 '18 at 17:32
as i said, a .txt file, and normal strings as data (plain text)
– user99170
Nov 21 '18 at 17:37
2
You can ReadAllText of the file. Do the changes from the resulting string. Then WriteAllText back to the file.
– the_lotus
Nov 21 '18 at 17:40
Check out File.Open(String, FileMode) Then check FileMode. It looks like the Truncate field of FileMode might do what you want.
– Mary
Nov 21 '18 at 18:03
Do some research on reading and writing text files in VB.NET. There's loads of information around. When you open a file for writing, the only options are overwriting or appending so there's no great mystery to how to overwrite. It's the default in most cases. You should ALWAYS be looking for existing information first and then ask here if you aren't able to make what you've learned work. SO is not a place to ask a question as the first option.
– jmcilhinney
Nov 22 '18 at 2:30
|
show 1 more comment
You could start looking here. There's a lot of piece missing. What type of file, what type of data, what's the new content, ...
– the_lotus
Nov 21 '18 at 17:32
as i said, a .txt file, and normal strings as data (plain text)
– user99170
Nov 21 '18 at 17:37
2
You can ReadAllText of the file. Do the changes from the resulting string. Then WriteAllText back to the file.
– the_lotus
Nov 21 '18 at 17:40
Check out File.Open(String, FileMode) Then check FileMode. It looks like the Truncate field of FileMode might do what you want.
– Mary
Nov 21 '18 at 18:03
Do some research on reading and writing text files in VB.NET. There's loads of information around. When you open a file for writing, the only options are overwriting or appending so there's no great mystery to how to overwrite. It's the default in most cases. You should ALWAYS be looking for existing information first and then ask here if you aren't able to make what you've learned work. SO is not a place to ask a question as the first option.
– jmcilhinney
Nov 22 '18 at 2:30
You could start looking here. There's a lot of piece missing. What type of file, what type of data, what's the new content, ...
– the_lotus
Nov 21 '18 at 17:32
You could start looking here. There's a lot of piece missing. What type of file, what type of data, what's the new content, ...
– the_lotus
Nov 21 '18 at 17:32
as i said, a .txt file, and normal strings as data (plain text)
– user99170
Nov 21 '18 at 17:37
as i said, a .txt file, and normal strings as data (plain text)
– user99170
Nov 21 '18 at 17:37
2
2
You can ReadAllText of the file. Do the changes from the resulting string. Then WriteAllText back to the file.
– the_lotus
Nov 21 '18 at 17:40
You can ReadAllText of the file. Do the changes from the resulting string. Then WriteAllText back to the file.
– the_lotus
Nov 21 '18 at 17:40
Check out File.Open(String, FileMode) Then check FileMode. It looks like the Truncate field of FileMode might do what you want.
– Mary
Nov 21 '18 at 18:03
Check out File.Open(String, FileMode) Then check FileMode. It looks like the Truncate field of FileMode might do what you want.
– Mary
Nov 21 '18 at 18:03
Do some research on reading and writing text files in VB.NET. There's loads of information around. When you open a file for writing, the only options are overwriting or appending so there's no great mystery to how to overwrite. It's the default in most cases. You should ALWAYS be looking for existing information first and then ask here if you aren't able to make what you've learned work. SO is not a place to ask a question as the first option.
– jmcilhinney
Nov 22 '18 at 2:30
Do some research on reading and writing text files in VB.NET. There's loads of information around. When you open a file for writing, the only options are overwriting or appending so there's no great mystery to how to overwrite. It's the default in most cases. You should ALWAYS be looking for existing information first and then ask here if you aren't able to make what you've learned work. SO is not a place to ask a question as the first option.
– jmcilhinney
Nov 22 '18 at 2:30
|
show 1 more comment
1 Answer
1
active
oldest
votes
2
Read (ie: load) everything in the TXT file into your program.
Dim sFullPathToFile As String = Application.StartupPath & "Sample.txt"
Dim sAllText As String = ""
Using xStreamReader As StreamReader = New StreamReader(sFullPathToFile)
sAllText = xStreamReader.ReadToEnd
End Using
Dim arNames As String() = Split(sAllText, vbCrLf)
'Just for fun, display the found entries in a ListBox
For iNum As Integer = 0 To UBound(arNames)
If arNames(iNum) > "" Then lstPeople.Items.Add(arNames(iNum))
Next iNum
Because you wanted to overwrite everything in the file, we now use StreamWriter (not a StreamReader like before).
'Use the True to indicate it is to be appended to existing file
'Or use False to open the file in Overwrite mode
Dim xStreamWRITER As StreamWriter = New StreamWriter(sFullPathToFile, False)
'Use the carriage return character or else each entry is on the same line
xStreamWRITER.Write("I have overwritten everything!" & vbCrLf)
xStreamWRITER.Close()
answered Nov 22 '18 at 16:03
ThePeter
328111
add a comment |
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
2
Read (ie: load) everything in the TXT file into your program.
Dim sFullPathToFile As String = Application.StartupPath & "Sample.txt"
Dim sAllText As String = ""
Using xStreamReader As StreamReader = New StreamReader(sFullPathToFile)
sAllText = xStreamReader.ReadToEnd
End Using
Dim arNames As String() = Split(sAllText, vbCrLf)
'Just for fun, display the found entries in a ListBox
For iNum As Integer = 0 To UBound(arNames)
If arNames(iNum) > "" Then lstPeople.Items.Add(arNames(iNum))
Next iNum
Because you wanted to overwrite everything in the file, we now use StreamWriter (not a StreamReader like before).
'Use the True to indicate it is to be appended to existing file
'Or use False to open the file in Overwrite mode
Dim xStreamWRITER As StreamWriter = New StreamWriter(sFullPathToFile, False)
'Use the carriage return character or else each entry is on the same line
xStreamWRITER.Write("I have overwritten everything!" & vbCrLf)
xStreamWRITER.Close()
answered Nov 22 '18 at 16:03
ThePeter
328111
add a comment |
2
Read (ie: load) everything in the TXT file into your program.
Dim sFullPathToFile As String = Application.StartupPath & "Sample.txt"
Dim sAllText As String = ""
Using xStreamReader As StreamReader = New StreamReader(sFullPathToFile)
sAllText = xStreamReader.ReadToEnd
End Using
Dim arNames As String() = Split(sAllText, vbCrLf)
'Just for fun, display the found entries in a ListBox
For iNum As Integer = 0 To UBound(arNames)
If arNames(iNum) > "" Then lstPeople.Items.Add(arNames(iNum))
Next iNum
Because you wanted to overwrite everything in the file, we now use StreamWriter (not a StreamReader like before).
'Use the True to indicate it is to be appended to existing file
'Or use False to open the file in Overwrite mode
Dim xStreamWRITER As StreamWriter = New StreamWriter(sFullPathToFile, False)
'Use the carriage return character or else each entry is on the same line
xStreamWRITER.Write("I have overwritten everything!" & vbCrLf)
xStreamWRITER.Close()
answered Nov 22 '18 at 16:03
ThePeter
328111
add a comment |
2
2
2
Read (ie: load) everything in the TXT file into your program.
Dim sFullPathToFile As String = Application.StartupPath & "Sample.txt"
Dim sAllText As String = ""
Using xStreamReader As StreamReader = New StreamReader(sFullPathToFile)
sAllText = xStreamReader.ReadToEnd
End Using
Dim arNames As String() = Split(sAllText, vbCrLf)
'Just for fun, display the found entries in a ListBox
For iNum As Integer = 0 To UBound(arNames)
If arNames(iNum) > "" Then lstPeople.Items.Add(arNames(iNum))
Next iNum
Because you wanted to overwrite everything in the file, we now use StreamWriter (not a StreamReader like before).
'Use the True to indicate it is to be appended to existing file
'Or use False to open the file in Overwrite mode
Dim xStreamWRITER As StreamWriter = New StreamWriter(sFullPathToFile, False)
'Use the carriage return character or else each entry is on the same line
xStreamWRITER.Write("I have overwritten everything!" & vbCrLf)
xStreamWRITER.Close()
answered Nov 22 '18 at 16:03
ThePeter
328111
Read (ie: load) everything in the TXT file into your program.
Dim sFullPathToFile As String = Application.StartupPath & "Sample.txt"
Dim sAllText As String = ""
Using xStreamReader As StreamReader = New StreamReader(sFullPathToFile)
sAllText = xStreamReader.ReadToEnd
End Using
Dim arNames As String() = Split(sAllText, vbCrLf)
'Just for fun, display the found entries in a ListBox
For iNum As Integer = 0 To UBound(arNames)
If arNames(iNum) > "" Then lstPeople.Items.Add(arNames(iNum))
Next iNum
Because you wanted to overwrite everything in the file, we now use StreamWriter (not a StreamReader like before).
'Use the True to indicate it is to be appended to existing file
'Or use False to open the file in Overwrite mode
Dim xStreamWRITER As StreamWriter = New StreamWriter(sFullPathToFile, False)
'Use the carriage return character or else each entry is on the same line
xStreamWRITER.Write("I have overwritten everything!" & vbCrLf)
xStreamWRITER.Close()
answered Nov 22 '18 at 16:03
ThePeter
328111
answered Nov 22 '18 at 16:03
ThePeter
328111
answered Nov 22 '18 at 16:03
ThePeter
328111
answered Nov 22 '18 at 16:03
ThePeter
328111
328111
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add a comment |
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You could start looking here. There's a lot of piece missing. What type of file, what type of data, what's the new content, ...
– the_lotus
Nov 21 '18 at 17:32
as i said, a .txt file, and normal strings as data (plain text)
– user99170
Nov 21 '18 at 17:37
2
You can ReadAllText of the file. Do the changes from the resulting string. Then WriteAllText back to the file.
– the_lotus
Nov 21 '18 at 17:40
Check out File.Open(String, FileMode) Then check FileMode. It looks like the Truncate field of FileMode might do what you want.
– Mary
Nov 21 '18 at 18:03
Do some research on reading and writing text files in VB.NET. There's loads of information around. When you open a file for writing, the only options are overwriting or appending so there's no great mystery to how to overwrite. It's the default in most cases. You should ALWAYS be looking for existing information first and then ask here if you aren't able to make what you've learned work. SO is not a place to ask a question as the first option.
– jmcilhinney
Nov 22 '18 at 2:30