Xe货币转换器使用Asp.net问题 [英] Xe currency Convertor using Asp.net Problem
问题描述
private double GetConvertedCurrencyValue（ string inputCurrency， string outputCurrency， double value ）
{
string request = String 。格式（ http://www.xe.com/ucc/convert.cgi?Amount= {0}& From = {1}& To = {2}， value ，inputCurrency，outputCurrency）;
System.Net.WebClient wc = new System.Net.WebClient（）;
string apiResponse = wc.DownloadString（request）; // 这是一个阻止操作。
wc.Dispose（）;
/ * 格式化* /
// 典型响应：XE.com：curr1到curr2率：x curr1 = y curr2
// 第一部分，直到x curr1基本上是常数
string header = String .Format（ XE.com：{0}到{1}率：，inputCurrency，outputCurrency）;
// 删除标题
// 现在响应如下：x curr1 = y curr2
apiResponse = apiResponse.Replace（header，< span class =code-string> ）;
// 让我们将响应拆分为'='，以检索正确的部分
string outValue = apiResponse.Split（' ='）[ 1 ];
// 摆脱'curr2'部分
outValue = outValue.Replace（outputCurrency， ）;
return Double .Parse（outValue，System.Globalization.CultureInfo.InvariantCulture ）;
}
它给出了以下错误最后一行。请立即回复......
输入字符串的格式不正确。
您好b $ b您是否检查 你得到了什么错误。我希望你得到错误消息喜欢这个：
返回Double.Parse（outValue，System.Globalization.CultureInfo.InvariantCulture）;
来自outValue的
如果您检查将收到如下错误消息：
http://www.w3.org/1999/xhtml\">
< head>
<！ - - 警告：使用条款禁止自动提取费率。 - >
http://www.xe.com/errors/noautoextract.htm[ ^ ]
chk此链接：
http：// stackoverflow .com / questions / 15105308 / how-to-programmatically-extract-information-from-a-web-page-using-linux-command [ ^ ]< / head>
private double GetConvertedCurrencyValue(string inputCurrency, string outputCurrency, double value)
{
string request = String.Format("http://www.xe.com/ucc/convert.cgi?Amount={0}&From={1}&To={2}", value, inputCurrency, outputCurrency);
System.Net.WebClient wc = new System.Net.WebClient();
string apiResponse = wc.DownloadString(request); // This is a blocking operation.
wc.Dispose();
/* Formatting */
// Typical response: "XE.com: curr1 to curr2 rate: x curr1 = y curr2"
// The first part, up until "x curr1" is basically a constant
string header = String.Format("XE.com: {0} to {1} rate:", inputCurrency, outputCurrency);
// Removing the header
// The response now looks like this: x curr1 = y curr2
apiResponse = apiResponse.Replace(header, "");
// Let's split the response at '=', to retrieve the right part
string outValue = apiResponse.Split('=')[1];
// Getting rid of the 'curr2' part
outValue = outValue.Replace(outputCurrency, "");
return Double.Parse(outValue, System.Globalization.CultureInfo.InvariantCulture);
}
it gives an below error in last line .please reply immediately......
Input string was not in a correct format.
Hi Did you check with what error did you get .I hope you get the error message like this :
return Double.Parse(outValue, System.Globalization.CultureInfo.InvariantCulture);
from outValue if you check you will get the error message as below :
"http://www.w3.org/1999/xhtml">
<head>
<!-- WARNING: Automated extraction of rates is prohibited under the Terms of Use. -->
http://www.xe.com/errors/noautoextract.htm[^]
chk this link :
http://stackoverflow.com/questions/15105308/how-to-programmatically-extract-information-from-a-web-page-using-linux-command[^]</head>
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