C＃中的Weather API预测系统 [英] Weather API forecast system in C#

问题描述

我希望显示7周的时间。天气信息这是API，我曾经忘记7天伦敦的结果



http://api.apixu.com/v1/forecast.xml?key=5742bec32f4141e08db171907171010& ; q = india& days = 7

如果我在c＃中编写代码我应该没问题



StringBuilder sb = new StringBuilder（ ）;

sb.Append（http://api.apixu.com/v1/forecast.xml?key=5742bec32f4141e08db171907171010&q=）;

sb.Append（txtbox.Text）;

sb.Append（& days =）;

sb.Append（7）;

这是我编写的代码，用于显示在数据网格视图上，但没有结果显示任何人可以修复代码供我显示7天天气信息将显示在数据网格视图上。我写了我试过的完整代码。



我尝试了什么：



StringBuilder sb = new StringBuilder（）;

sb.Append（http://api.apixu.com/v1/forecast.xml?key=5742bec32f4141e08db171907171010&q=）;

sb.Append（txtcity.Text）;

sb.Append（& days =）;

sb.Append（ 7）;









XmlReader xmlFile;

xmlFile = XmlReader.Create（sb.ToString（））;

DataSet ds = new DataSet（）;

ds.ReadXml（xmlFile）;



foreach（ds.Tables中的DataTable表）

{

foreach（table.Rows中的DataRow行）

{

dataGridView1.DataSource = row.ItemArray;

}

}

解方案

看来你调用这个web服务的方法不正确。



你可以像这样获取数据。

 var request = sb.ToString（）; 
 
使用（var webClient = new WebClient（））
 {
 var response = webClient.DownloadData（request）; 
 
 var xml = Encoding.UTF8.GetString（response）; 
 
 using（var sr = new StringReader（xml））
 {
 var dataSet = new DataSet（）; 
 
 dataSet.ReadXml（sr）; 
} 
} 

更多信息：



DataSet本身包含8个表格。



位置，

当前，

条件，

预测，
预测日，

天，

astro，

小时


对于每个表，您必须有一个DataGridView。



例如位置可以这样显示：

 dataGridView1.DataSource = dataSet.Tables [0]; 

I want to display 7 days of the weeks. weather information this is API I used to forgetting 7 days result of London

http://api.apixu.com/v1/forecast.xml?key=5742bec32f4141e08db171907171010 &q=india&days=7
if I write code in c# below I should be no problem

StringBuilder sb = new StringBuilder();
sb.Append("http://api.apixu.com/v1/forecast.xml?key=5742bec32f4141e08db171907171010&q=");
sb.Append(txtbox.Text);
sb.Append("&days=");
sb.Append("7");
this is code i written to display on data grid view but no result display can any one fix the code for me to display 7 days weather information will display on data grid view. i wrote the full code which i have tried.

What I have tried:

StringBuilder sb = new StringBuilder();
sb.Append("http://api.apixu.com/v1/forecast.xml?key=5742bec32f4141e08db171907171010&q=");
sb.Append(txtcity.Text);
sb.Append("&days=");
sb.Append("7");




XmlReader xmlFile;
xmlFile = XmlReader.Create(sb.ToString());
DataSet ds = new DataSet();
ds.ReadXml(xmlFile);

foreach (DataTable table in ds.Tables)
{
foreach (DataRow row in table.Rows)
{
dataGridView1.DataSource = row.ItemArray;
}
}

解决方案

It seems that your approach of calling this web service is not correct.

You could fetch the data like this.

var request = sb.ToString();

using (var webClient = new WebClient())
{
        var response = webClient.DownloadData(request);

        var xml = Encoding.UTF8.GetString(response);

        using(var sr = new  StringReader(xml))
        {
            var dataSet = new DataSet();

            dataSet.ReadXml(sr);
        }
}

Some more info:

The DataSet itself contains 8 tables.

location,
current,
condition,
forecast,
forecastday,
day,
astro,
hour

For each of these tables you must have one DataGridView.

e.g. location can be shown like this:

dataGridView1.DataSource = dataSet.Tables[0];

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