How to add numbers to string in a file?

Question

I have a text file called sample.txt and its contents look like

John Howard Carpenter @#@ born in Carthage, New York,

to mother Milton Jean (Carter) and father Howard Ralph Carpenter.

His family moved to Bowling @#@, Kentucky, @#@ his father, a professor,

was @#@ of the music @#@ at Western Kentucky University.

How do I replace all @#@ by the numbers starting from 1, then incremented by +1 till no @#@ is left in the file.

I've tried

string x=File.ReadAllText(@"C:sample.txt");
string y="@#@";
int i=1;
MatchCollection matches = Regex.Matches(x, y, RegexOptions.IgnoreCase);
if (matches.Count>0)
{
foreach (Match m in matches) {
string n=x.Replace(y,i.ToString());
i++;
File.WriteAllText(y,n);
}
}
MessageBox.Show("Done");

It does not do anything

BTW: The expected output is

John Howard Carpenter 1 born in Carthage, New York, to mother Milton Jean (Carter) and father Howard Ralph Carpenter. His family moved to Bowling 2, Kentucky, 3 his father, a professor, was 4 of the music 5 at Western Kentucky University.

Nilesh Shah · Answer

I modified your code a bit it is working fine as per my testing: string inputText = File.ReadAllText(@ C:	emp\sample.txt ); string findText = @#@ ; int matchCount = inputText.Split(findText.ToCharArray()).Length - 1; if (matchCount > 0) { for ( int counter = 1; counter { var regex = new Regex(Regex.Escape(findText)); inputText = regex.Replace(inputText counter.ToString() 1); } } Console.Write(inputText); Console.ReadKey();

Nilesh Shah · Answer

int matchCount = inputText.Split(findText.ToCharArray()).Length - 1; so what I'm doing here is finding the no. of occurances of the string @#@ . how? I'm splitting all your original text from file by the string @#@ so we get the string components before and after @#@ in an array then I'm taking the array length then I'm doing minus 1 in that (as the last line we don't consider it) that's how I find the no. of times @#@ is found in file text. then I loop that no. of times and replace it by 123...

ValoChele · Answer

Hi Nilesh Could you explain the below line in your code in detail (I'm a newby...) int matchCount = inputText.Split(findText.ToCharArray()).Length - 1; Thanks.

Karthik Elumalai · Answer

Hi I have looked into your requirement and written code by hoping  it will help for you. Here is the code: StringBuilder sb = new StringBuilder(); string input = @John Howard Carpenter @#@ born in Carthage New York to mother Milton Jean (Carter) and father Howard Ralph Carpenter. His family moved to Bowling @#@ Kentucky @#@ his father a professor was @#@ of the music @#@ at Western Kentucky University.; string[] splittedinput = input.Split(' '); int i = 1; string temp = string.Empty; foreach (string arrayvalue in splittedinput) { temp = arrayvalue; if (arrayvalue == @#@ || arrayvalue == @#@) { temp = i.ToString(); i++; } sb.Append(  + temp); } Console.WriteLine(sb); output This is full and full my way of thinking and you can get n no of solution for the same problem. Hope it will give some guidance Thanks Karthik