How do I trim the first 3 characters of a text file and save

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I have the Text file XX_TRCSAB_123456.txt I want to Rename the file as TRCSAB_123456.txt

Can you guide me how to achieve this in C sharp

Posted 20-Apr-15 17:57pm

DEbopm

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PIEBALDconsult · Answer 1 · 2015-04-20T18:04:00

Solution 1

File.Move

https://msdn.microsoft.com/en-us/library/system.io.file.move(v=vs.110).aspx[^]

Posted 20-Apr-15 18:04pm

PIEBALDconsult

Abhinav S · Answer 2 · 2015-04-20T18:22:00

Solution 2

Try

string oldNameFullPath = "XX_TRCSAB_123456.txt";
var index = oldNameFullPath.indexOf('_');
var newNameFullPath = oldNameFullPath.substring(index, oldNameFullPath.Length - index); 
System.IO.File.Move(oldNameFullPath, newNameFullPath);

Posted 20-Apr-15 18:22pm

Abhinav S