C#把日期转化成星期
显示效果：
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前台页面代码：
1 <TextBlock Grid.Row="0" x:Name="lb_txt_0" Text="选中日期" FontSize="13"/> 2 <TextBlock Grid.Row="1" x:Name="lb_txt_1" Text="哪年" FontSize="13"/> 3 <TextBlock Grid.Row="2" x:Name="lb_txt_2" Text="哪月" FontSize="13"/> 4 <TextBlock Grid.Row="3" x:Name="lb_txt_3" Text="当月第几天" FontSize="13"/> 5 <TextBlock Grid.Row="4" x:Name="lb_txt_4" Text="星期几" FontSize="13"></TextBlock> 6 <TextBlock Grid.Row="5" x:Name="lb_txt_5" Text="当月总天数" FontSize="13"></TextBlock> 7 <TextBlock Grid.Row="6" x:Name="lb_sum" Text="所有日期" FontSize="13"></TextBlock>
后台代码：
1 //指定日期 2 DateTime selectTime = Convert.ToDateTime(rdp_schedule.SelectedValue); 3 lb_txt_0.Text = "选中时间：" + selectTime; 4 //哪年 5 int year = selectTime.Year; 6 lb_txt_1.Text = "哪年：" + year + "年"; 7 //哪月 8 int month = selectTime.Month; 9 lb_txt_2.Text = "哪月：" + month + "月"; 10 //第几天 11 int day = selectTime.Day; 12 lb_txt_3.Text = "当月第几天：" + day; 13 14 // 星期几 15 string week_EN = selectTime.DayOfWeek.ToString();//英文星期几 16 string[] weekRemarks = new string[] { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" }; 17 string week_CN = weekRemarks[Convert.ToInt16(selectTime.DayOfWeek)];//中文星期几 18 lb_txt_4.Text = "星期几：" + week_EN + "[" + week_CN + "]"; 19 20 //一个月的总天数 21 int totalDays = DateTime.DaysInMonth(year, month); 22 lb_txt_5.Text = "该月天数：" + totalDays; 23 24 //显示该月所有日期是星期几 25 26 string timedays = ""; 27 for (int i = 1; i <= totalDays; i++) 28 { 29 string cols = i + "号/" + week_str[Convert.ToInt16(selectTime.AddDays(i - selectTime.Day).DayOfWeek)]; 30 timedays += "该月第" + i + "天是" + selectTime.AddDays(i - selectTime.Day).DayOfWeek; 31 timedays += " // "+week_str[Convert.ToInt16(selectTime.AddDays(i - selectTime.Day).DayOfWeek)] + "\n"; 32 } 33 34 lb_sum.Text = timedays;
