Question

在我的代码中，我定义了字符串重复编号并将其分配给for循环。但是，当我创建按钮单击事件时，我需要它可访问。不知道怎么做。

有人能给我一些提示吗？

   public partial class MainWindow : Window
{
    public MainWindow()
    {         
        InitializeComponent();
        string[] assignments = new string[] { "A", "b", "c", "d", "e", "f" };
        Random rnd = new Random();

        string[] randomingArray = assignments.OrderBy(x => rnd.Next()).ToArray();
        string repeatNumber = "";

        List<ImageSource> animals = new List<ImageSource>();

        for (int i = 1; i < 100; i++)
        {
            if (i == 9)
            {
                repeatNumber = randomingArray[i % randomingArray.Length];
                animals.Add(new ImageSource() { Source = repeatNumber, Number = i });
            }
            else if ((i % 9) == 0)
            {
                animals.Add(new ImageSource() { Source = repeatNumber, Number = i });
            }
            else
            {
                animals.Add(new ImageSource() { Source = randomingArray[i % rnd.Next(1,5)], Number = i });
            }
            ItemsControl1.ItemsSource = animals;
        }
    }


    private void btn1_Click(object sender, RoutedEventArgs e)
    {
        MessageBox.Show("test");
    }
    private void btn2_Click(object sender, RoutedEventArgs e)
    {
        MessageBox.Show((new ImageSource() { Source = repeatNumber })); <-- the name repeatNumber does not exist in current context
    }
}

class ImageSource
{
    public int Number { get; set; }
    public string Source { get; set; }
}

Answer 1

您需要将repeatnumber定义为类属性

public partial class MainWindow : Window
{

   private string repeatNumber;

   public MainWindow()
   {  
   ...

否则它仅限于MainWindow构造函数的范围（＆lt; =你想要查看）。

该名称在当前上下文中不存在 - 如何访问它？

1 个答案: