单击按钮时，仅更改日期时间选择器中的月份值 [英] Change only month value in datetime picker when a button is clicked

问题描述

您好我有一个应用程序，其中将有12个按钮，每个按钮被命名为一年中的几个月。当我点击像11月这样的特定按钮时，datetimepicker中的月份值（dd-MM-yyy）MM值应该更改。我该如何实现？

请提供一些代码。我只需要改变一个月。不是日期或年份。在datetimepicker只有一个月。



我尝试过：



Dtp .Date.Value.Month = Convert.ToInt32（Btn_Nov.Text）;

Hi I had an application in which there will be 12 buttons each named as months of an year. when I clicked on a specific button like November, the month value (dd-MM-yyy) MM value in datetimepicker should change. how can I achieve that ?
please suggest some code. I need to change only month. not date or year. only month in datetimepicker.

What I have tried:

Dtp.Date.Value.Month=Convert.ToInt32(Btn_Nov.Text);

推荐答案

DateTime value = Dtp.Date.Value;
Dtp.Date.Value = new DateTime(value.Year, theNewMonth, value.Day);

如果按钮有月份NAMES而不是月份NUMBERS，最简单的方法是用枚举来做：

If the buttons have month NAMES as opposed to month NUMBERS, the simplest way is to do it with an enum:

// example, if Btn_Nov.Text is "Nov", the following code would result in 11.
public enum Months { Jan = 1, Feb, Mar, Apr, May...,Nov,Dec};
Dtp.Date.Value.Month = (int)((Months)Enum.Parse(typeof(Months), Btn_Nov.Text, false));

当然，你的枚举应该匹配按钮文本所说的内容（将false传递给 Enum.Parse 使搜索不区分大小写。）

Of course, your enums should match whatever the button text says (passing false to Enum.Parse makes the search case-insensitive).

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