How to edit a file?

Question

May be this is a foolish question. 

 There are such things as write (create) a file and append to the file. But how to edit data in a file in JS windows app?

For example, I've set up a text file to gather inputs from a user. Later we want to edit some of this data. So what are options for these?

Answer 1

SonalMac -

I believe these are the actions that you want to do:

• Make initial write to inputsFile.
• Read inputsFile to gather current data
• Write to inputsFile to make modifications

If this is so, take a look at:

WinJS.Application.IOHelper object
http://msdn.microsoft.com/en-us/library/windows/apps/br211764.aspx

Answer 2

Hi,

Check out this code sample from MSDN code gallery. tells how to create/read/write to a file.

It has sample code all operations that you can do with a file.

Hope this helps..

- Girija

Answer 3

  Thanks for reply.

 What does it mean to write and read BYTES into file? And Write and Read a file using a STREAM? code sample is good but I don't know these basics to understand those code sample. Please any explanation regarding this is appreciated.