How to remove the last character from Stringbuilder
- by hmloo
We usually use StringBuilder to append string in loops and make a string of each data separated by a delimiter. but you always end up with an extra delimiter at the end. This code sample shows how to remove the last delimiter from a StringBuilder. using System;
using System.Collections.Generic;
using System.Text;
using System.Linq;
class Program
{
static void Main()
{
var list =Enumerable.Range(0, 10).ToArray();
StringBuilder sb = new StringBuilder();
foreach(var item in list)
{
sb.Append(item).Append(",");
}
sb.Length--;//Just reduce the length of StringBuilder, it's so easy
Console.WriteLine(sb);
}
}
//Output : 0,1,2,3,4,5,6,7,8,9
Alternatively, we can use string.Join for the same results, please refer to blow code sample.
using System;
using System.Collections.Generic;
using System.Text;
using System.Linq;
class Program
{
static void Main()
{
var list = Enumerable.Range(0, 10).Select(n => n.ToString()).ToArray();
string str = string.Join(",", list);
Console.WriteLine(str);
}
}
