Empty text file to fill with new data

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Hi all,

Right now I'm able to read the textfile line by line until end of line..here are the code

VB

Dim Reader As StreamReader = File.OpenText("C:\Test.txt")
Dim FileText As String = Reader.ReadToEnd()
Reader.Close()
txtTest.Text = FileText

after it read all line, user able to edit the line and save the new data. But how can I clean the content of the textfile before I write the new data on it? I try to search on google but not find the right solution. So could someone help me on this?
I dont want to delete the file and create new one. I want to use the current textfile and..you know what I mean. Please advise me on this

Posted 31-Jan-13 17:28pm

Luiey Ichigo

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Sergey Alexandrovich Kryukov 31-Jan-13 23:31pm

How about just reading help more thoroughly? :-)
—SA

Luiey Ichigo 31-Jan-13 23:43pm

haha..I'll try to read first and feedback to you what I'm see through the page..tq

Sergey Alexandrovich Kryukov 31-Jan-13 23:54pm

OK, did you read my answer? This is all you need. 100% a solution...
—SA

Luiey Ichigo 31-Jan-13 23:56pm

Yeah sir..I'll look forward on it

Sergey Alexandrovich Kryukov 1-Feb-13 0:07am

Very good. When and if you see it makes sense, please accept the answer formally (green button), if not, ask what's not clear, I'll gladly answer.
—SA

Luiey Ichigo 1-Feb-13 1:35am

Sir, I've seen through the page. But I can't even see the code how to clean all content on current textfile. Let's say the textfile content a text with this:

Please refer to nearest counter
for further assistance

This line of code is for example the current text on the textfile. If I want to edit the thing using my program (use for Support Engineer if there any changes on this) to:

If you have any inquiry
please call 1-800-8585

So this is what I mean. I'm glad for your assistance sir

Sergey Alexandrovich Kryukov 1-Feb-13 1:40am

Did you really read the help pages?
If Boolean parameter "append" is false, the file is cleared; new content is written from scratch.
—SA

Sergey Alexandrovich Kryukov 1-Feb-13 1:41am

I don't know, may be you also did not understand that the reader is only for reading. You should close it, and use writer to write the new data...
—SA

Luiey Ichigo 1-Feb-13 2:00am

Lemme try first with a simple program..then I'll feedback you..

Luiey Ichigo 1-Feb-13 2:25am

Sir, thank you for your assistance. I've found the way from the page,this is the way I use:

Dim Reader As StreamWriter
Reader = New StreamWriter("C:\Test.txt")
Reader.Write(TextBox1.Text)
Reader.Close()

Sergey Alexandrovich Kryukov 1-Feb-13 2:28am

Oh, great. And you found it by yourself: I forget to mention that no Boolean parameter defaults to "append = false", so it really re-writes the file, too.

You are welcome.
Good luck, call again...
—SA

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Sergey Alexandrovich Kryukov · Accepted Answer · 2013-01-31T17:34:00

Look here: http://msdn.microsoft.com/en-us/library/system.io.streamwriter.aspx[^].

Now, locate the section "Constructors". Look through the help pages for the constructors, but only those having a Boolean parameter. Read about this parameter in any of those page. This parameter is your solution.

—SA