What would be the for loop alternative for the following foreach loops?

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VS2017

Hello,

I have an error stating "Cannot assign to '***' because it is a 'foreach iteration variable'"

So I have the following foreach loops, please tell me their alternative for loops, so that I can proceed with the program.

foreach (string line in Regex.Split(ArticleData, Environment.NewLine))
{
    while (line.EndsWith(('\n').ToString()) || line.EndsWith(('\r').ToString()))
    {
        line = line.Substring(0, line.Length - 1);

foreach (string ncxline in Regex.Split(Convert.ToString(TotalDataForOPF_NCX), Environment.NewLine))
{
    while (ncxline.EndsWith(('\n').ToString()) || ncxline.EndsWith(('\r').ToString()))
        {
            ncxline = ncxline.Substring(0, ncxline.Length - 1);

Please help.

Regards
Aman Chaurasia

What I have tried:

I have not tried anything because I don't know how to proceed

Posted 28-May-18 23:06pm

Primo Chalice

Updated 29-May-18 3:54am

Dave Kreskowiak

v2

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Richard MacCutchan 29-May-18 5:13am

('\n').ToString()
Why on earth are you calling ToString on a string character? If you want it as a string constant rather than a character then use double quotes.

F-ES Sitecore 29-May-18 6:28am

'\n' isn't a string :)

Richard MacCutchan 29-May-18 6:43am

No, but it is a character.

Primo Chalice 29-May-18 6:02am

Will do that, but one question. Why do the foreach variables in Visual Basic work fine but show an error in C#?

Richard Deeming 31-May-18 14:41pm

REPOST
You have already posted this:
https://www.codeproject.com/Questions/1245981/How-do-I-assign-a-foreach-iteration-variable[^]

Primo Chalice 1-Jun-18 2:07am

No! Basically that is where I am asking how to assign and use a foreach iteration variable. In this question, I want to know an alternate way to use a foreach loop so that the variable can be used.

2 solutions

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Richard MacCutchan · Answer 1 · 2018-05-28T23:16:00

Solution 1

Create a string array from your Regex operation and use an integer variable.

Posted 28-May-18 23:16pm

Richard MacCutchan

Comments

Primo Chalice 29-May-18 6:02am

Will do that, but one question. Why do the foreach variables in Visual Basic work fine but show an error in C#?

Richard MacCutchan 29-May-18 6:18am

foreach iteration variable - Google Search[^] or better still Statements | Microsoft Docs[^]

BillWoodruff · Answer 2 · 2018-05-29T03:36:00

Never try to modify an iterator variable; never try to modify a collection you are enumerating in the enumerator.

If what you are after is an array of strings made from stripping line endings as you parse the lines of a file:

1. handle any style of line-break:

char[] lineEndings = new char[]{'\r','\n'};

2. use example:

string[] strippedLines = ArticleData.Split(lineEndings, StringSplitOptions.RemoveEmptyEntries);