How to Convert Decimal To Dollar

private void button1_Click(object sender, EventArgs e)
{
decimal dollarAmount = decimal.Parse(textBox2.Text);
string text = dollarAmount.ToString("C");
textBox2.Text = text;
}

try this sample:
use this name space:
using System.Globalization;

in aspx:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>




   


   

   

       
       

       
   

   

in.cs:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Globalization;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        Decimal currency = Convert.ToDecimal(TextBox1.Text, new CultureInfo("en-US"));
        string money = currency.ToString("C");

        if (currency % 1 == 0)
        {
            money = money.Substring(0, money.Length - 3);
        }
        Label1.Text = money.ToString();
    }
}