In This coding we r doing the currency conversion The Rsult is displaying lick
this
144 USD = NaN INR
Whay hear NAN(Not a number) is
displaying
plz help me and what is the changes and how to do that plz tell me
In web.config I am using this Rss
feed:
<add key="CurrencyLink"
value="http://currencysource.com/RSS/USD.xml"/>
In
JavaScript :
//This particular function retreives and displays
the currency results of the usered selected input
function
DisplayCurrencyValue(link,currency)
{
var
str,objXMLNode,objXMLDoc,objEmployee,strHTML;;
var
stri=AJAXUtilities.GetCurrencyValue(link,currency);
str =
stri.value;
var result= parseFloat(str);
var
value=parseFloat(document.getElementById("txtConvert").value)
if(isNaN(value))
{
value=1;
document.getElementById("txtConvert").value=1;
}
var city=document.getElementById("ddlTo");
var url=document.getElementById("ddlFrom");
var
path=url.options[url.selectedIndex].text;
var
pathCurr=url.options[url.selectedIndex].value;
var
currencyAbr=pathCurr.substring(pathCurr.length-7,pathCurr.length-7+3);
var
curr=city.options[city.selectedIndex].value;
Result=result*value;
var str=value+" "+currencyAbr+" = "+
Result +" "+curr;
document.getElementById("lblConverResult").value=str;
//
document.getElementById("txtConvert").focus();
}
//This particular function gets the user selected input and
invokes the fucnction which retreives the details
function
DisplayCurrencyResult()
{
var
city=document.getElementById("ddlTo");
var
url=document.getElementById("ddlFrom");
var
path=url.options[url.selectedIndex].value;
var
curr=city.options[city.selectedIndex].value;
DisplayCurrencyValue(path,curr);
}
In AJAX coding
:
//This particular method returns xml document with currency
details
[Ajax.AjaxMethod()]
public XmlDocument
GetCurrencyDetails()
{
DataSet ds3 = new DataSet();
string currencyUrl =
ConfigurationSettings.AppSettings["CurrencyLink"].ToString();
ds3.ReadXml(currencyUrl,
XmlReadMode.Auto);
XmlDocument xmlDoc = new
XmlDocument();
xmlDoc.LoadXml(ds3.GetXml());
return xmlDoc;
}
//This particular method returns the respective value
of the currency as a string
[Ajax.AjaxMethod()]
public string GetCurrencyValue(string url, string currency)
{
DataSet ds3 = new
DataSet();
ds3.ReadXml(url,
XmlReadMode.Auto);
DataTable table = ds3.Tables[3];
string
curren = currency.Trim();
string title =
"";
string rate = "";
string exchange =
"";
string outPut = "";
foreach (DataRow
row in table.Rows)
{
title =
row["title"].ToString();
int endPoint =
title.IndexOf("=");
int startPoint =
title.IndexOf("(");
int ePoint =
title.IndexOf("(");
rate = title.Substring(endPoint +
2);
exchange = (rate.Substring(0,
3));
if (exchange.Equals(curren))
{
outPut = rate.Substring(5, (rate.Length - 1) - 5);
}
rate =
title.Substring(startPoint + 1, 3);
}
decimal tr = Convert.ToDecimal(rate.Substring(0, rate.Length -
1));
tr = tr * 100;
//XmlDocument xmlDoc =
new XmlDocument();
return outPut;
}
In Index.aspx.cs
//Binds the Currency
detatils to the dropdownlist
public void BindCurrency()
{
CurrencyDetails newCurrency = new
CurrencyDetails();
CurrencyDetailsCollection newCurrencyColl =
new CurrencyDetailsCollection();
newCurrencyColl =
newCurrency.getAllCurrencies();
ddlFrom.Items.Clear();
ddlTo.Items.Clear();
if
(newCurrencyColl.Count > 0)
{
ddlFrom.DataSource = newCurrencyColl;
ddlFrom.DataTextField =
"CurrencyDesc";
ddlFrom.DataValueField =
"CurrencyURL";
ddlFrom.DataBind();
ddlTo.DataSource = newCurrencyColl;
ddlTo.DataTextField =
"CurrencyDesc";
ddlTo.DataValueField =
"currency_abbr";
ddlTo.DataBind();
ddlFrom.SelectedIndex = 45;
ddlTo.SelectedIndex =
45;
}
}
No one has replied yet! Why not be the first?
Sign in or Join us (it's free).