C# Program to Convert String to Long

To convert a string to a long, use the Long.parse method in C# −

Firstly, set a string −

string str = "6987646475767";

Now, convert it to long −

long.Parse(str);

Here is the complete code −

Example

 Live Demo

using System;
using System.Linq;
class Demo {
   static void Main() {
      string str = "6987646475767";
      long res = long.Parse(str);
      Console.WriteLine(res);
   }
}

Output

6987646475767