move to a specified location in a text file and overwrite

This is one way of doing what you want, there would be other ways.

 

bool dirty = false;
string[] text = File.ReadAllLines(@"c:\temp\test.txt");
string[] values;
int value = -1;
for(int i = 0; i < text.Length; 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:\temp\test.txt", text);

 

hi

 

I want to move file pointer to soecified location

 

thanks 

Hi

 

The logic to replace the word in the file is below :

 

 

Now according to your requirement u need to write a logic like

 Consider Nishant as int 

nishant + 1  and then replace.