Question

每个按钮旁边有5个按钮和5个标签。当我运行应用程序时，我希望启用第一个按钮，其余部分禁用并使用标签显示灰色。单击第一个按钮后，它应该使用标签禁用并启用第二个按钮，依此类推所有其他按钮。

这种方式很长，有没有更好的方法呢？

private void Form1_Load(object sender, EventArgs e)
{

        btn1.Enabled = true;
        btn2.Enabled = false;
        btn3.Enabled = false;
        btn4.Enabled = false;
        btn5.Enabled = false;
        lblStep1.Enabled = true;
        lblStep2.Enabled = false;
        lblStep3.Enabled = false;
        lblStep4.Enabled = false;
        lblStep5.Enabled = false;
    }

    private void btn1_Click(object sender, EventArgs e)
    {
            btn1.Enabled = false;
            btn2.Enabled = true;
            btn3.Enabled = false;
            btn4.Enabled = false;
            btn5.Enabled = false;
            lblStep1.Enabled = false;
            lblStep2.Enabled = true;
            lblStep3.Enabled = false;
            lblStep4.Enabled = false;
            lblStep5.Enabled = false;
    }

    private void btn2_Click(object sender, EventArgs e)
    {
            btn1.Enabled = false;
            btn2.Enabled = false;
            btn3.Enabled = true;
            btn4.Enabled = false;
            btn5.Enabled = false;
            lblStep1.Enabled = false;
            lblStep2.Enabled = false;
            lblStep3.Enabled = true;
            lblStep4.Enabled = false;
            lblStep5.Enabled = false;
        }
    }

    private void btn3_Click(object sender, EventArgs e)
    {
        btn1.Enabled = false;
        btn2.Enabled = false;
        btn3.Enabled = false;
        btn4.Enabled = true;
        btn5.Enabled = false;
        lblStep1.Enabled = false;
        lblStep2.Enabled = false;
        lblStep3.Enabled = false;
        lblStep4.Enabled = true;
        lblStep5.Enabled = false;
    }

    private void btn4_Click(object sender, EventArgs e)
    {
        btn1.Enabled = false;
        btn2.Enabled = false;
        btn3.Enabled = false;
        btn4.Enabled = false;
        btn5.Enabled = true;
        lblStep1.Enabled = false;
        lblStep2.Enabled = false;
        lblStep3.Enabled = false;
        lblStep4.Enabled = false;
        lblStep5.Enabled = true;
    }

    private void btn5_Click(object sender, EventArgs e)
    {
        btn1.Enabled = true;
        btn2.Enabled = false;
        btn3.Enabled = false;
        btn4.Enabled = false;
        btn5.Enabled = false;
        lblStep1.Enabled = true;
        lblStep2.Enabled = false;
        lblStep3.Enabled = false;
        lblStep4.Enabled = false;
        lblStep5.Enabled = false;
    }

Answer 1

让所有这些按钮和标签都在一个容器内（如果不是意味着你可以使用它。如果表单只包含这些按钮和标签，也可以使用控件）。设为pnlContainer，现在你可以尝试这样的事情：

public void ButtonController(Button buttonToEnable, Label labelToenable)
{
    foreach (Control ctrl in panel1.Controls)
    {
        if (ctrl == buttonToEnable || ctrl == labelToenable)
        {
            ctrl.Enabled = true;
        }
        else
        {
            ctrl.Enabled = false;
        }
    }
}

因此，在Form1_Load您要启用btn1和lblStep1，因此呼叫应为：

ButtonController(btn1,lblStep1);

对于btn1_Click，方法调用将类似于ButtonController(btn2,lblStep2);。简而言之，您可以传递要为此方法启用的按钮和标签，这将禁用容器中的其余控件。

根据某些条件启用和禁用按钮，标签

1 个答案: