move to a specified location in a text file and overwrite

Question

hi guys i have a text file with the contents as follows code:x:y 2346:1:0 3456:2:6 2345:3:7 4567: 4:1 3456:5:3 i need to read from beginning of file and check if 4567is present in file if present i need to move to that matched row 'y' column and increment the value....that is increment 1 in my above file and write it back in the same location. please help thanks

theLizard · Answer

This is one way of doing what you want there would be other ways. bool dirty = false; string[] text = File.ReadAllLines(@c:	emp	est.txt); string[] values; int value = -1; for(int i = 0; i { if(text[i] == 4567: 4:1) { values = text[i].Split(':'); int.TryParse(values[values.Length - 1] out value); if(value != -1) dirty = true; value += 1; text[i] = text[i].Substring(0 text[i].LastIndexOf(':')+1) + value.ToString(); break; } } if(dirty) File.WriteAllLines(@c:	emp	est.txt text);

brian dsouza · Answer

hi I want to move file pointer to soecified location thanks

Nishant Mittal · Answer

Hi The logic to replace the word in the file is below : string fileName =path of file; File.WriteAllText(fileName File.ReadAllText(fileName).Replace(Nishant sam)); Now according to your requirement u need to write a logic like Consider Nishant as int nishant + 1 and then replace.