How to write into a empty file in a perticular position using c#..?

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i have tried to write into a file..now i am able to write but not able to write into perticular position in a file

What I have tried:

i have tried to write into a file..now i am able to write but not able to write into perticular position in a file

Posted 28-Feb-16 22:21pm

Member 12358514

Updated 28-Feb-16 22:59pm

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dan!sh 29-Feb-16 4:50am

Update the question with code you have tried. Only post relevant code. Do not clutter comment section with code.

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Sascha Lefèvre · Answer 1 · 2016-02-28T22:59:00

You're looking for the Stream.Seek(..)[^]-method with which you can position your "virtual cursor" in a stream (which may be a file).

Be aware that writing "in the middle" of a stream will not insert whatever you're writing but it will overwrite whatever already is at that position. There's no simple switch to change this; if you'd want to insert, you'd have to move the remainder backwards yourself by reading and re-writing it.

Depending on which particular class you're using for file-access you might find the Seek-method not directly on that class-object but under the BaseStream-property, e.g.: myStreamWriter.BaseStream.Seek(..) .

Also be aware that the ability to seek is not generally allowed for a stream, with files you'll usually be able to though. You can check whether a stream allows seeking with its property .CanSeek .