remove after point string c# code example

Example 1: remove all text after string c#

string input = "text?here";
int index = input.LastIndexOf("?"); // Character to remove "?"
if (index > 0)
    input = input.Substring(0, index); // This will remove all text after character ?

Example 2: C# copy string except for last letter

using System;

class Program
{
    static void Main()
    {
        string input = "OneTwoThree";

        string sub = input.Substring(0, input.Length - 5);
        Console.WriteLine("Substring: {0}", sub);
    }
}

Output

Substring: OneTwo