VB .NET中带有if语句的日期选择器 [英] Date Picker with if statement in vb .net

问题描述

全民甜日

我在项目asp.net中放入了日期选择器
如果员工未设置时间，我需要if语句语法
显示他/她的错误信息
否则转到其他页面

最好的问候&谢谢4 all

Sweet Day for All

I put date picker in my project asp.net
and i need if statement syntax if the employee not set time
show him/her error message
else go to other page

Best Regards & thanks 4 all

推荐答案

1.您应该共享使用过的日期选择器
2.您应该分享自己的努力，尝试并陷入困境.

目前，任何日期票控件都将暴露诸如"SelectedDate"之类的属性.在此基础上，执行以下操作:

1. You should have shared which datepicker you have used
2. You should have shared what effort you made, tried for it and got stuck.

For now, any datepicket control will have a proerty exposed something like ''SelectedDate'' or so. Based on that, do something like:

If myDatePicker.SelectedDate IsNot Nothing AndAlso Not String.IsNullOrEmpty(myDatePicker.SelectedDate.ToString()) Then
    Response.Redirect("Anotherpage.aspx")
Else
    lblError.Text = "Error! Please enter the date. "
End If

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