将字符串转换为日期 [英] Converting string to date

问题描述

如何从文本框转换日期。



如果我在本地系统中运行我的网页，它会将字符串转换为日期，但如果我在服务器中运行则无效。 br $>

 DateTime date = DateTime.Parse（txt_date.Text）; 

错误消息：字符串未被识别为有效的DateTime 

解决方案

这取决于用户输入文本框的内容：说实话，他可以放任何东西！

这就是为什么我不使用文本框：我建议Calendar [ ^ ]控制：它将以本地用户格式显示，但始终为您提供 SelectedDate [ ^ ]属性，这是一个有效的DateTime，无需进一步转换。

< blockquote> OriginalGriff是完全正确的。有更多类似的选择;请看我过去的答案： TextBox允许仅使用（HH：mm tt）格式使用asp.net [ ^ ]。

-SA

要添加解决方案1和2指出的内容，您还可以使用 DateTime.TryParse（） [ ^ ]尝试解析它，如果失败则不会像你一样抛出异常将返回false，然后您可以相应地处理它。

How to convert date from textbox.

If i run my webpage in local system it converting string to date but its not working if i run in server.

DateTime date = DateTime.Parse(txt_date.Text);

error message : String was not recognized as a valid DateTime

解决方案

It's going to depend on what the user enters into the textbox: to be honest, he could put anything!
This is why I don't use textboxes: I would suggest a Calendar[^] control instead: it will display in the local user format, but always give you the SelectedDate[^] property, which is a valid DateTime and needs no further conversion.

OriginalGriff is perfectly right. There are more similar options; please see my past answer: TextBox allow only (HH:mm tt) format using asp.net[^].

—SA

To add to what Solution 1 and 2 have pointed out, you could also use DateTime.TryParse()[^] which attempts to parse it and if it fails then instead of throwing an exception like you are getting it will return a false at which point you can then handle it accordingly.

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