Difference between ref and out parameters in .NET

The out and the ref parameters are used to return values in the same variables, that you pass an an argument of a function. These both parameters are very useful when your function needs to return more than one values.

                The out Parameter

The out parameter can be used to return the values in the same variable passed as a parameter of the function. Any changes made to the parameter will be reflected in the variable.

Write a code to get file name from file path in c#

  String filePath = @"c:\file\neme\file.txt";

=> filePath.Split('\\')[filePath.Split('\\').Length-1]     ---->   Will give file name with extension

=> (filePath.Split('\\')[filePath.Split('\\').Length-1]).Split('.')[0] --> Will give file name without extension 


=> filePath.Split('\\')[0]  --> Will give drive letter