For Details on Layer and Tire

https://msdn.microsoft.com/en-gb/library/ee658109.aspx

http://stackoverflow.com/questions/120438/whats-the-difference-between-layers-and-tiers

Get USD to INR exchange rate dynamically in C# by Pabitra

using System.IO;
using System.Net;
using System.Xml;
----------------------

 private void button2_Click(object sender, EventArgs e)
        {
            WebRequest webrequest = WebRequest.Create("http://www.webservicex.net/CurrencyConvertor.asmx/ConversionRate?FromCurrency=USD&ToCurrency=INR");
            HttpWebResponse response = (HttpWebResponse)webrequest.GetResponse();
            Stream dataStream = response.GetResponseStream();
            StreamReader reader = new StreamReader(dataStream);
            string responseFromServer = reader.ReadToEnd();
            XmlDocument doc = new XmlDocument();
            doc.LoadXml(responseFromServer);
            string value = doc.InnerText;

            MessageBox.Show(value);
            reader.Close();
            dataStream.Close();
            response.Close();


        }

Date Time Picker in Jquery

  <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js"></script>
    <script type="text/javascript">
        $(function () {
            $('#<%=txtFromdate.ClientID%>').datepicker({ dateFormat: "dd/mm/yy" }).val()
            $('#<%=txtTodate.ClientID%>').datepicker({ dateFormat: "dd/mm/yy" }).val()
        });
      
   </script>


<div>

<asp:TextBox ID="txtFromdate" Width="35%" runat="server" placeholder="Select Date" ToolTip="From Date" AutoCompleteType="Disabled" TabIndex="1"></asp:TextBox>

<br/>
<asp:TextBox ID="txtTodate" Width="35%" runat="server" placeholder="Select Date" ToolTip="From Date" AutoCompleteType="Disabled" TabIndex="1"></asp:TextBox>



</div>