Question

应用程序运行正常，直到我添加了两个数组的代码。我有一些类级别的字符串：

string cFileName = "customer.txt";
string[] cName = new string[0];
string[] cPhone = new string[0];

我已将此添加到Window_Loaded事件：

private void Window_Loaded_1(object sender, RoutedEventArgs e)
{
    //read file on start
    //ReadFile();
    int counter = 0;
    string line;
    StreamReader custSR = new StreamReader(cFileName);
    line = custSR.ReadLine();

    while (custSR.Peek() != -1)
    {
        Array.Resize(ref cPhone, cPhone.Length + 1);
        Array.Resize(ref cName, cName.Length + 1);

        cPhone[cPhone.Length - 1] = line;
        cName[cName.Length - 1] = line;
        counter++;

        //phoneComboBox.Items.Add(cPhone[cPhone.Length - 1]);
     }
     custSR.Close();

     for (int i = 0; i < counter; i++)
     {
         phoneComboBox.Items.Add(cPhone[i]);
     }
     //focus when program starts
     phoneComboBox.Focus();
}

我//ReadFile()的原因是因为我尝试将其作为单独的方法并调用Window_Loaded事件。我也尝试从循环中输入组合框。我之前没有发生这种情况，也无法弄清楚我做了什么。

Answer 1

我没有读下一行来打破循环。我将此标记为我的答案，因为它修复了问题，并且任何人在将来偶然遇到这个问题。

while (custSR.Peek() != -1)
{
    Array.Resize(ref cPhone, cPhone.Length + 1);
    Array.Resize(ref cName, cName.Length + 1);

    cPhone[cPhone.Length - 1] = line;
    cName[cName.Length - 1] = line;
    counter++;

    line = custSR.ReadLine();  //needed this to read next line
 }

代码更改后，WPF程序无法加载

1 个答案: