c# - Reading from a text file and updating -


i new programming , came across problem , i'm not sure how deal it.

i use line

    textbox2.text = system.io.file.readalltext(path);

to read text file , paste contents in textbox2.

now issue text file i'm try read large (couple megabytes) text file. text file contains logs program, new logs added @ bottom of file.
want update textbox2 if text file updated. not sure how in efficient way. 1 way read whole text file again, since text file big, slow process.

i interested in finding out different , faster way handle this. i'm not interested in exact code, hoped find out in direction should , options can consider.

well, 2 obvious things check:

if keep track of those, should able detect when file has changed - @ least reasonable degree of confidence.

additionally, can use filesystemwatcher watch changes.

also, might want consider keeping track of you've read - read new data, seeking right place in file.

finally, textbox may not best user interface huge log file. if structured log file, have structure represented in ui - example, 1 row in table per log entry, potentially filtering options etc.


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