C#•3y ago

input file error

when reading numbers in my input file, i convert them to integers and assign specific numbers to a variable such as

uint x = Convert.ToUInt32(nextItem[0]);
uint y = Convert.ToUInt32(nextItem[1]);
uint z = Convert.ToUInt32(reader.ReadLine());

uint x = Convert.ToUInt32(nextItem[0]);
uint y = Convert.ToUInt32(nextItem[1]);
uint z = Convert.ToUInt32(reader.ReadLine());

uint x = Convert.ToUInt32(nextItem[0]);
uint y = Convert.ToUInt32(nextItem[1]);
uint z = Convert.ToUInt32(reader.ReadLine());

uint x = Convert.ToUInt32(nextItem[0]);
uint y = Convert.ToUInt32(nextItem[1]);
uint z = Convert.ToUInt32(reader.ReadLine());

but i keep getting an error saying "'Input string was not in a correct format.'" i am unsure how to fix this because the input file is automatically a string, but converting it to an int is causing an error. I normally convert this way and have not had an issue

Kiel•12/4/23, 1:22 AM

two things:

it's better practice to use uint.(Try)Parseuint.(Try)Parse than Convert methods - those are older mostly reserved for legacy purposes
it doesn't hurt to separate the assignment and conversion so you can more easily see what the "input" is - if it's not the right format, it's not the right format, so you may need to find out why

DinnyOP•12/4/23, 1:23 AM

i understand, i will try. my prof taught us to code that way, so we've been using that in out coding.
could u elaborate please? :333

Kiel•12/4/23, 1:26 AM

string xString = nextItem[0];
uint x = Convert.ToUInt32(xString);
string yString = nextItem[1];
uint y = Convert.ToUInt32(yString);
string zString = reader.ReadLine();
uint z = Convert.ToUInt32(zString);

string xString = nextItem[0];
uint x = Convert.ToUInt32(xString);
string yString = nextItem[1];
uint y = Convert.ToUInt32(yString);
string zString = reader.ReadLine();
uint z = Convert.ToUInt32(zString);

assuming all your inputs are strings

Kiel•12/4/23, 1:26 AM

then when debugging you can inspect the values of xStringxString, yStringyString, zStringzString

DinnyOP•12/4/23, 1:28 AM

ok lemme try,plz hold

ZacharyPatten•12/4/23, 1:28 AM

Is this a school assignment? Are you required to read your input file using a StreamReader?

You could probably make your life much easier by using JSON serialization & deserialization instead of coding your own parser

ZZacharyPatten Is this a school assignment? Are you required to read your input file using a St...

DinnyOP•12/4/23, 1:28 AM

yes this is a school assignment

DinnyOP•12/4/23, 1:29 AM

my prof is very old school and encourages us to code this way :///

KKiel then when debugging you can inspect the values of `xString`, `yString`, `zString...

DinnyOP•12/4/23, 1:31 AM

i just tried and got the same error

DinnyOP•12/4/23, 1:31 AM

I'll look up the try parse functuion

DinnyOP•12/4/23, 1:31 AM

function

ZacharyPatten•12/4/23, 1:32 AM

don't just ignore the error, what does the error say?

DinnyOP•12/4/23, 1:32 AM

im not

DinnyOP•12/4/23, 1:32 AM

that's why im doing try parse instead of convertto

DinnyOP•12/4/23, 1:33 AM

"input string was not in correct format"

ZacharyPatten•12/4/23, 1:33 AM

and what does that error mean to you? what is it telling you?

DinnyOP•12/4/23, 1:34 AM

i believe it's something to do on my part with the concersion because the input file is read as one big string

DinnyOP•12/4/23, 1:34 AM

in the past i've ive convertto to convert to an int but thats not working here

DinnyOP•12/4/23, 1:34 AM

used*

ZacharyPatten•12/4/23, 1:34 AM

instead of "i bleive..." you should check

ZacharyPatten•12/4/23, 1:34 AM

put a breakpoint

DinnyOP•12/4/23, 1:34 AM

well yeah

DinnyOP•12/4/23, 1:35 AM

that's

DinnyOP•12/4/23, 1:35 AM

why im here

DinnyOP•12/4/23, 1:35 AM

i've checked

DinnyOP•12/4/23, 1:35 AM

and ran into tjat error

DinnyOP•12/4/23, 1:35 AM

so now im trying the try parse

ZacharyPatten•12/4/23, 1:35 AM

that likely won't help

ZacharyPatten•12/4/23, 1:35 AM

put a breakpoint

DinnyOP•12/4/23, 1:35 AM

but he never taught us that :///

ZacharyPatten•12/4/23, 1:35 AM

on the line that is throwing the error

DinnyOP•12/4/23, 1:35 AM

i did

DinnyOP•12/4/23, 1:35 AM

and it gave me the error i told u

DinnyOP•12/4/23, 1:35 AM

:///

ZacharyPatten•12/4/23, 1:35 AM

putting breakpoints and debugging is a vital skill you need to learn as a software developer

ZacharyPatten•12/4/23, 1:36 AM

so time to start learning it

ZacharyPatten•12/4/23, 1:36 AM

I'll share an example

DinnyOP•12/4/23, 1:36 AM

i am trying and it's hard :///

DinnyOP•12/4/23, 1:36 AM

yes plz

DinnyOP•12/4/23, 1:36 AM

my tutor was teaching me a bit of how to debug , which has helped me a lot in c++

DinnyOP•12/4/23, 1:37 AM

but i admit i am struggling more with c#

ZacharyPatten•12/4/23, 1:37 AM

ZacharyPatten•12/4/23, 1:37 AM

see the red dot on the left side?

ZacharyPatten•12/4/23, 1:37 AM

that is a "breakpoint"

ZacharyPatten•12/4/23, 1:38 AM

you click there to place breakpoints

DinnyOP•12/4/23, 1:38 AM

yes i know

ZacharyPatten•12/4/23, 1:38 AM

and you can click break points to remove them

DinnyOP•12/4/23, 1:38 AM

i used those

DinnyOP•12/4/23, 1:38 AM

ik how to dp that part

DinnyOP•12/4/23, 1:38 AM

by using those is where i foud my error