In this tutorial i am going to share with you how to create a currency converter that will convert amount from one currency to another. By using this web application we can convert as per the latest market currency exchange rates by using Google Finance API Web Service in ASP.Net with VB.Net.
This Application Can Convert Us Dollars To India Rupees , Euro to Japan Yen, and etc.
Now, Let's Create Web page to Create Google Currency Converter.
After Create New Web page Design GUI (Graphical User Interface) as per your requirement.
Vb.Net Code:
Imports System.Net Imports System.Web.Script.Serialization Imports System.IO Imports System.Globalization Imports System.Configuration Imports System.Data Imports System.Linq Imports System.Web Imports System.Web.Security Imports System.Web.UI Imports System.Web.UI.HtmlControls Imports System.Web.UI.WebControls Imports System.Web.UI.WebControls.WebParts Imports System.Xml.Linq Imports System.Text.RegularExpressions Public Class WebForm1 Inherits System.Web.UI.Page Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load End Sub Protected Sub btConvert_Click(sender As Object, e As EventArgs) Handles btConvert.Click Dim Amount As String = CurrencyConvert(txtAmount.Text, ddlFrom.SelectedItem.Value, ddlTo.SelectedItem.Value) ClientScript.RegisterStartupScript(Me.[GetType](), "alert", "alert('" & Amount & "');", True) End Sub Private Function CurrencyConvert(ByVal amount As Decimal, ByVal fromCurrency As String, ByVal toCurrency As String) As String '////////////////////////////////////////////// LIKE AND SHARE //////////////////////////////////////////////////////// '//////////////////////// https://www.facebook.com/Asppoint1 //////////////////////////////////////////////////// '//////////////////////// https://www.asppoint.com/ ///////////////////////////////////////////////////////////// CurrencyConvert = Nothing If amount <> 0 Then Dim web As New WebClient() Dim url As String = String.Format("https://www.google.com/finance/converter?a={2}&from={0}&to={1}", fromCurrency.ToUpper(), toCurrency.ToUpper(), amount) Dim response As String = web.DownloadString(url) Dim regex As New Regex("<span class=bld>(\d*.\d*)") Dim rate As String = System.Convert.ToDecimal(regex.Match(response).Groups(1).Value) CurrencyConvert = "Real-Time Rate: " + ddlFrom.SelectedItem.Value + " = " + rate + " " + ddlTo.SelectedItem.Value End If End Function End Class
Download Sample Code:
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