如何填充多个标签？

时间：2013-10-20 19:23:21

标签： c# winforms

我是编程新手，并不确定我在做什么。我试图在c＃中的WindowsForm中复制日历。我开始使用TableLayoutPanel（6x7）。我在表格布局面板的每个单元格中添加了一个常规面板。在常规面板中，我有一个标签和一个列表框。我希望int day成为标签。我不想硬编码。当我搬到下个月时，我希望标签能够适当改变。我怎么能做到这一点？

以下是布局图：

Example

所以我在一个小组中这样做，以下是我的一个小组成员想出来的。除了2013年12月和2014年6月之外，它很好地填充了标签。任何可能导致这种情况的原因是什么？这是一种好办法吗？

` private void dtpMonthTab_ValueChanged(object sender, EventArgs e)
    {
        this.setCal();
    }

    private void setCal()
    {


        DateTime now = dtpMonthTab.Value;
        int month = now.Month;
        int year = now.Year;
        DateTime startmonth = new DateTime(year, month, 1);


        DayOfWeek dow = startmonth.DayOfWeek;
        int daynumber = (int)dow;
        //MessageBox.Show(" testing: " + dow + daynumber);

        switch (daynumber)
        {
            case 0:
                //MessageBox.Show("The number is zero!");
                startmonth = startmonth.AddDays(-6);
                label1.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label2.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label3.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label4.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label5.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label6.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label7.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                break;
            case 1:
                //MessageBox.Show("The number is one!");
                startmonth = startmonth.AddDays(-1);
                label1.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label2.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label3.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label4.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label5.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label6.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label7.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                break;
            case 2:
                //MessageBox.Show("The number is 2!");
                startmonth = startmonth.AddDays(-2);
                label1.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label2.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label3.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label4.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label5.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label6.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label7.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                break;
            case 3:
                //MessageBox.Show("The number is 3!");
                startmonth = startmonth.AddDays(-3);
                label1.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label2.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label3.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label4.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label5.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label6.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label7.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                break;
            case 4:
                //MessageBox.Show("The number is 4!");
                startmonth = startmonth.AddDays(-4);
                label1.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label2.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label3.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label4.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label5.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label6.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label7.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                break;
            case 5:
                //MessageBox.Show("The number is 5!");
                startmonth = startmonth.AddDays(-5);
                label1.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label2.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label3.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label4.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label5.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label6.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label7.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                break;
            case 6:
                //MessageBox.Show("The number is 6!");
                startmonth = startmonth.AddDays(-6);
                label1.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label2.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label3.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label4.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label5.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label6.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                label7.Text = String.Format("{0:dd}", startmonth);
                startmonth = startmonth.AddDays(1);
                break;
            default:
                MessageBox.Show("I'm sorry, I don't understand that!");
                break;

        }

        label8.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label9.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label10.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label11.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label12.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label13.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label14.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label15.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label16.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label17.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label18.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label19.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label20.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label21.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label22.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label23.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label24.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label25.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label26.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label27.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label28.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label29.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label30.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label31.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label32.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label33.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label34.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label35.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label36.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label37.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label38.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label39.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label40.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label41.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);

        label42.Text = String.Format("{0:dd}", startmonth);
        startmonth = startmonth.AddDays(1);
    } `

1 个答案:

答案 0 :(得分：0)

您可以使用TableLayoutPanel.GetControlFromPosition。一旦你有控件将它转换为你所知道的（你说“常规面板”）并相应地使用它。现在的问题是那些Panel项目没有公开它们的标签+列表框内容，但是Controls属性正在以某种方式暴露它们。我怀疑Controls[0]总会给出标签，Controls[1]会给你列表框，但不确定。你必须投他们。这取决于它们在每个单元格中创建的顺序。

您应该自己设置用户控件，就像Mr47的评论一样。您的用户控件将是一个带有标签和列表框的面板，然后您必须使用此新用户控件替换所有单元格中的所有面板。然后，您应该创建将公开标签和列表框的其他属性（Label和ListBox）。这样编程会更容易，而且代码可以更好地抵御错误。

另外，请注意，如果一个月的第一天是星期六，那么一个月的五行是不够的。

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