TextBox 和 MonthCalendar控件组合的日历控件

1.把TextBox和MonthCalendar控件拖到界面上。

2.将MonthCalendar控件的Visible属性设为False.

3.在代码里写下下面的内容：

private void textBox1_Click(object sender, EventArgs e)
        {
            monthCalendar1.Visible = true;
            monthCalendar1.Focus();
        }

        private void monthCalendar1_DateChanged(object sender, DateRangeEventArgs e)
        {   

           textBox1.Text = e.Start.ToString("yyyy-MM-dd"); 

        }

        private void monthCalendar1_Leave(object sender, EventArgs e)
        {
            monthCalendar1.Visible = false;
        }