public static string ReverseString(string s)
{
char[] arr = s.ToCharArray();
Array.Reverse(arr);
return new string(arr);
}
2.)Add The numbers Entered in a TextBox as String
Default.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="txtInputArray" runat="server"></asp:TextBox><br />
<asp:Button ID="btnSum" runat="server" Text="SUM" OnClick="btnSum_Click" />
</div>
</form>
</body>
</html>
Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnSum_Click(object sender, EventArgs e)
{
int result=AddNumbers(txtInputArray.Text);
Response.Write(result);
}
public int AddNumbers(string str)
{
char[] Arr = str.ToCharArray();
int ArrayLen = Arr.Length;
int result = 0;
for (int i = 0; i < ArrayLen; i++)
{
result = result + int.Parse (Arr[i].ToString ());
}
return result;
}
}
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