变量不会在winforms中更新

Question

void Neededtype_KeyDown(object sender, KeyEventArgs e)
{
    if (neededkey == e.KeyCode)
    {
        neededtype.ForeColor   = Color.FromName("Gray");
        mostanikari++;

        if (mostanikari == 2)
        {
            neededtype.Text = "work";
        }

        neededtype.SelectionStart = mostanikari;
        kovikari = mostaniszo[mostanikari].ToString();
        neededtype.SelectionLength = neededtype.Text.Length;
        neededtype.SelectionColor = Color.FromName("Blue");

        if (mostanikari == neededtype.Text.Length)
        {
            //random word gen here
        }
    }

    InitializeComponent();
}

• neededkey : 需要按下的键
• mostanikari : 是一个 int，它跟踪我们现在在哪个字母上
• kovikari : 需要的字符串是从
• 需要类型：是我在其中显示单词的neededtype

此处的代码尝试将 +1 添加到mostanikari ，然后继续选择

Answer 1

当您按下一个键时，您不需要调用InitializeComponent() ，因为这会将 object 重置为其默认值 state。 这就是为什么您在 winform 中看不到变化的原因。

void Neededtype_KeyDown(object sender, KeyEventArgs e) 
{
    if (neededkey == e.KeyCode)
    {
        neededtype.ForeColor   = Color.FromName("Gray");
        mostanikari++;
        if (mostanikari == 2)
        {
            neededtype.Text = "work";
        }
        neededtype.SelectionStart = mostanikari;
        kovikari = mostaniszo[mostanikari].ToString();
        neededtype.SelectionLength = neededtype.Text.Length;
        neededtype.SelectionColor = Color.FromName("Blue");

        if (mostanikari == neededtype.Text.Length)
        {
            //random word gen here
        }
    }
}