问题 调试时出现OutOfRangeExceptionHandler福彩12选5走势图

[拉夫斯03]

大家好，我需要一些有关我的问题的帮助。

我正在进行天气预报（C＃语言中的REST方法）
我写的代码，它没有显示任何福彩12选5走势图或警告。
但是当我运行调试器时会显示福彩12选5走势图（请参见图片）
PS：我使用Visual Basic 2010专业版。

http://imageshack.us/photo/my-images/844/error1z.jpg/

这是我写的代码。

using System.Xml.Linq;
using System.Net;




namespace RESTService
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();


            // Obtain the Foracast.
            GetForecast();


            // Display the Forecast data.
            DisplayData(ForecastNumber);
        }
        // Holds all of the weather data
        XDocument GetData;


        // Contains just the forecast.
        IEnumerable<XElement> Forecast;


        //Specifies which Forecast to use.
        Int32 ForecastNumber;


        // Defines the maximum number of farecast.
        Int32 MaxForecasts;


        // Contains a list of icons associated with the forecast.
        IEnumerable<XElement> Icons;


        // Specifies which icon to use.
        Int32 IconNumber;


public void GetForecast()
{
    // Contains the result of a retry request.
    DialogResult TryAgain = DialogResult.Yes;


    // Keep trying to get the weather data until the user
    // Gives up or the call is successful.
    while (TryAgain == DialogResult.Yes)
    {
        try
        {
            // Get the weather data.
            GetData =
                XDocument.Load(
                "http://api.wunderground.com/auto/wui/geo" 
                + "/ForecastXML/index.xml?query="
                + txtLocation.Text);


            // End the loop
            TryAgain = DialogResult.No;
        }
        catch (WebException)
        {
            TryAgain = MessageBox.Show(
                "Couldn't obtain the weather data! \r\n Try again?",
                "Data Download Error",
                MessageBoxButtons.YesNo,
                MessageBoxIcon.Error);
        }
    }


    // Obtain all the forecasts.
    Forecast =
        GetData.Element("forecast").Element("txt_forecast").Elements("forecastday");


    // Define the maximum number of forecasts.
    MaxForecasts = Forecast.Count() - 1;


    // Specify which forecast to use.
    ForecastNumber = 1;


    // Specify which icon to use.
    IconNumber = 1;


    // Reset the buttons.
    btnNext.Enabled = true;
    btnPrevious.Enabled = false;
}


public void DisplayData(Int32 FNumber)
{
    // Display the title of the current forecast.
    txtTitle.Text = Forecast.ElementAt（FNumber）.Element（"title").Value;


    // Display detailed forecast information.
    txtForecast.Text = Forecast.ElementAt(FNumber).Element("fctext").Value;


    // Obtain a list of icons associated with the forecast.
    Icons = Forecast.ElementAt(FNumber).Element("icons").Elements("icon_set");


    // Define the maximum numbers of available icons.
    IconSelect.Maximum = Icons.Count() - 1;


    // Display the icon on screen.
    wbIcon.Url = new Uri(Icons.ElementAt(IconNumber).Element("Icon_url").Value);
}

有人可以纠正我犯的福彩12选5走势图吗？因为我尝试修复了将近一个小时，但看不到我的福彩12选5走势图
我试图改变的价值"Fnumber"但是福彩12选5走势图仍然存​​在。
PS：我希望这是发布此主题的正确地方。

 

[约翰·H]

txtTitle.Text = Forecast.ElementAt（FNumber）.Element（"title").Value;

根据异常，索引FNumber上没有元素。

 

[拉夫斯03]

感谢您的注意。我将FNumber更改为ForecastNumber，并且可以使用！ thnx m8。