Question

我在Form1中有这段代码：

public partial class Form1 : Form
{
    public static int hours;
    public static int minutes;
    public static int seconds;
    FinishGate finishgate = new FinishGate();

    public Form1()
    {
        InitializeComponent();

        txtHours.MaxLength = 2;
        txtMinutes.MaxLength = 2;
        txtSeconds.MaxLength = 2;

        lblFinished.Text = Convert.ToString(gate.Total);
    }

private void btnFinish_Click(object sender, EventArgs e)
    {
        hours = Convert.ToInt32(txtHours.Text);
        minutes = Convert.ToInt32(txtMinutes.Text);
        seconds = Convert.ToInt32(txtSeconds.Text);
        lblFinished.Text = Convert.ToString(gate.Total);

        // Check if a runner has been selected
        if (lstRunners.SelectedIndex > -1)
        {
            // Obtain selected runner
            Runner selectedRunner = (Runner)lstRunners.SelectedItem;

            // If runner hasn't finished
            if (selectedRunner.HasFinished == false)
            {
                // Call the method in FinishGate class to process the runner
                FinishGate.ProcessRunner(selectedRunner);
            }
            else
            {
                // Runner has finished / been processed so increase the total that have completed the climb by one
                finishgate.Total++;
            }
        }
    } 
}

这是FinishGate.cs：

class Gate
{
    private int total;

    public int Total
    {
        get { return total; }
        set { total = value; }
    }

    public static void ProcessRunner(Runner selectedRunner)
    {

    }
}

我想要发生的是，当选择列表框中的跑步者并单击“处理”按钮时，hasFinished中的布尔ProcessRunner将更改为true和{{ 1}}整数增加1，然后更新Total也增加1，但我无法使其工作。

我的两个主要问题是：我不确定lblFinished中的代码是什么，如果ProcessRunner()将其更改为true，hasFinished == false将布尔值保留为原样。另一个问题是，当整数递增时，else会相应地更新。

关于我哪里出错以及将来如何防止这种情况的任何建议都会很棒。

Answer 1

你可以试试这个：

把这一行

lblFinished.Text = Convert.ToString(gate.Total);

在btnFinish_Click()事件结束时而非开头。这样，它会在 ProcessRunner()运行后更新。

另外，请将其添加到ProcessRunner()课程中的Gate个活动：

if (selectedRunner.hasFinished == false) { selectedRunner.hasFinished = true; } //You don't need to do anything if it isn't false.

我希望这对你有用。如果我需要更具体，请告诉我。

增加来自另一个类的整数

1 个答案: