/// <summary> /// 日期按钮点击,根据显示情况切换日期选择控件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btn_IssueMonth_Click(object sender, EventArgs e) { if (IsMonthPickerFocused) { IsMonthPickerFocused = false; } else { var btn = btn_IssueMonth; MonthPicker.Show(); MonthPicker.BringToFront(); MonthPicker.Focus(); IsMonthPickerFocused = true; } }