АВ2 Задача 6

<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="AV2.WebForm1" %>
<asp:Content ID="Content1" ContentPlaceHolderID="MainContent" runat="server">
    <div class="container-fluid">

        <div class="row text-center ">

            <div class="m-4">
                Внесете име на валута
                <br />
                <asp:TextBox ID="ImeValuta" runat="server"></asp:TextBox>
            </div>

            <div class="m-4">
                Внесете вредност на валута
                <br />
                <asp:TextBox ID="VrednostValuta" runat="server"></asp:TextBox>
            </div>

            <div class="m-4">
                <asp:Button ID="DodadiValuta" runat="server" Text="Додади Валута" OnClick="DodadiValuta_Click" />
                <asp:Button ID="IzbrisiValuta" runat="server" Text="Избриши Валута" OnClick="IzbrisiValuta_Click" />
            </div>

            <hr />

            <div class="m-4">
                <asp:RadioButtonList ID="ListaValuti" runat="server" AutoPostBack="True" OnSelectedIndexChanged="ListaValuti_SelectedIndexChanged"></asp:RadioButtonList>
            </div>
              <hr />



            <hr />
             <div class="m-4">
               Вкупно валути: <asp:Label ID="total" runat="server" Text="0"></asp:Label>
            </div>

            <br />
            <hr />

             <div class="m-4">
               Внесете валута: <asp:TextBox ID="vrednost" runat="server"></asp:TextBox>
            </div>
            <br />

            <div class="m-4">
                Статус:  <asp:Label ID="status" runat="server" Text="0"></asp:Label>
            </div>



        </div>

    </div>
</asp:Content>

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

namespace AV2
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void DodadiValuta_Click(object sender, EventArgs e)
        {
            ListItem item = new ListItem(ImeValuta.Text, VrednostValuta.Text);
            ListaValuti.Items.Add(item);
            ImeValuta.Text = "";
            VrednostValuta.Text = "";
            updateTotal();
        }

        protected void IzbrisiValuta_Click(object sender, EventArgs e)
        {
            if(ListaValuti.SelectedIndex!=-1)
            {
                ListaValuti.Items.Remove(ListaValuti.SelectedItem);
                updateTotal();
            }
            else
            {
                status.Text = "Nemate selektirano nitu edna valuta!";
            }
        }

        private void updateTotal()
        {
            total.Text = ListaValuti.Items.Count.ToString();
        }

        protected void ListaValuti_SelectedIndexChanged(object sender, EventArgs e)
        {
            int value=Convert.ToInt32(ListaValuti.SelectedValue);
            status.Text=Convert.ToString(Convert.ToInt32(vrednost.Text)* value);
        }
    }
}