仅显示前一个日期，而不显示当前和将来的日期. [英] only the previous date has to be shown and not the present and future date..

问题描述

手动输入日期...我输入的日期应该是以前的日期，而不应该是现在或将来的日期..如果我输入当前或将来的日期，则应该抛出错误..请帮助用代码给我...这是一个移动Web应用程序.我不使用日期和时间选择器，而是使用文本框

manually i am entering the date .....the date which i enter should be a previous date and should not be a present or future date..if i enter present or future date it should throw error..please help me with the code...It is a mobile web application.. and i am not using date and time picker instead i am using text box

推荐答案

比较日期到今天，如果以后再拒绝它.确实是简单的算法，代码可能需要使用 DateTime结构 [ ^ ]及其方法.

Compare the date to today and reject it if it is later. Simple algorithm really, and the code will probably need to use the DateTime structure[^] and its methods.

希望txtDate.text为dd/MM/yyyy格式
在提交按钮上单击
如果txtDate.text> = Format(Date.UtcNow()，"dd/MM/yyyy")然后
txtDate.text ="
MsgBox(请输入过去的日期")
EndIf
ExitSub

您可以在提交"按钮中编写此代码.单击...，如果条件失败，则按照上层代码退出sub ..

hoping txtDate.text is in dd/MM/yyyy format
on submit button click
if txtDate.text>= Format(Date.UtcNow(),"dd/MM/yyyy") Then
txtDate.text=""
MsgBox("Please Write Past Date")
EndIf
ExitSub

This code You can write in Submit button Click... if condition fails it will exitsub as per Upper code..

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