带有if语句的datetime列表框 [英] listbox with datetime with if statement

问题描述

我如何使用if语句与listbox + datetimepicker

ex ：



listbox1.Items.add（datetimepicker1.value）;



IF声明



if（DateTime.Now ==（列表框中的时间））

{



Go（）;



}

how i can use if statement with listbox + datetimepicker
ex :

listbox1.Items.add(datetimepicker1.value);

IF statement

if (DateTime.Now == ( time in listbox ))
{

Go();

}

推荐答案

我不会：DateTime精确到毫秒，因此，您下拉列表中的任何特定日期时间值只会与DateTime.Now匹配百万分之一秒 - 所以您甚至抓住正确的一天的可能性非常小。



如果您想找到合适的日子，您可以：

I wouldn't: a DateTime is accurate to milliseconds, and so any specific DateTime value from your drop down will only match DateTime.Now for one millionth of a second - so the chances of you even "catching the right day" are seriously minimal.

If you are trying to find just the right day, you can:

if (DateTime.Now.Date == ((DateTime) myListBox.SelectedItem).Date)
    {

但是对于任何更准确的东西它会变得更复杂，因为没有特定属性this小时或这一分钟



SelectedValue改为SelectedItem：O [/ edit]

But for anything more accurate it gets more complex, as there is no specific property for "this hour" or "this minute"

[edit]SelectedValue changed to SelectedItem :O [/edit]

这篇关于带有if语句的datetime列表框的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！