我如何仅比较年份值？ [英] How do I compare only year values ?

问题描述

  if （sender._selectedDate> new  Date （） .getYear）{
 
 alert（ 您无法选择大于当前年份的日期！ ）; 
 sender._selectedDate = new 日期（）; 
 sender._textbox.set_Value（sender._selectedDate.format（sender._format））
} 

在上面的代码中我想查看年份值用户使用当前年份输入但无法从sender._selectedDate中提取年份值。请建议解决方案..



发件人是日历扩展程序控件。以下是代码段..

 <   ItemTemplate  >  
 <   asp：TextBox     ID   =  txtdeadline    contentEditable   = 错误    runat   =  server  
   
                                                                  高度  =   40px   宽度 < span class =code-keyword> =  57px >  <   / asp：TextBox  >  
 <   asp：CalendarExtender     ID   =  txtdeadline_CalendarExtender    runat   = 服务器  
   
                                                            < span class =code-attribute>      已启用  =  True    OnClientDateSelectionChanged   =  checkDate < span class =code-attribute>   TargetControlID   =  txtdeadline >  
 <   / asp：CalendarExtender  >  
 <   asp：RequiredFieldValidator     ID   =  RequiredFieldValidator3   < span class =code-attribute> runat   =  server    ControlToValidate   =  txtdeadline  
   
          < span class =code-attribute>                                                         ErrorMessage   =  *   < span class =code-attribute> SetFocusOnError   =  True    ValidationGroup   =  valgrp_func >  <   / asp：RequiredFieldValidator  >  
 
 <   / ItemTemplate  >  

解决方案

检查这个...

http：// go4answers。 webhost4life.com/Example/calendarextender-datechange-event-134578.aspx [ ^ ]

你可以比较两个日期





DateTime dt1 = Convert.toDateTime（txtdeadline.text）;

DateTime dt = DateTime.Now;



如果（dt.Year = dt1.year）

{

------你的逻辑就在这里
}

试试这个

  var  checkDate =  function （sender，args）{
 
  var  date =  new  日期（日期 .parse（sender._selectedDate））; 
   var  year = date.getFullYear（）;  
 
   if （year>  new   Date （）。getFullYear（） ）{ 
 alert（ 您无法选择大于当前年份的日期！）; 

if (sender._selectedDate > new Date().getYear) {

                   alert(" You cannot select a date greater than current year!");
                   sender._selectedDate = new Date();
                   sender._textbox.set_Value(sender._selectedDate.format(sender._format))
               }

In above code i wanted to check year value entered by user with current year but am not able to extract year value from sender._selectedDate . Please suggest the solution..

The sender is calenderExtender control . Here is the code snippet..

<ItemTemplate>
                                        <asp:TextBox ID="txtdeadline" contentEditable="False" runat="server"

                                Height="40px" Width="57px"></asp:TextBox>
                                        <asp:CalendarExtender ID="txtdeadline_CalendarExtender" runat="server"

                                Enabled="True" OnClientDateSelectionChanged="checkDate" TargetControlID="txtdeadline">
                                        </asp:CalendarExtender>
                                        <asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ControlToValidate="txtdeadline"

                                ErrorMessage="*" SetFocusOnError="True" ValidationGroup="valgrp_func"></asp:RequiredFieldValidator>

                                    </ItemTemplate>

解决方案

check this...
http://go4answers.webhost4life.com/Example/calendarextender-datechange-event-134578.aspx[^]

You can Compare the two Date


DateTime dt1 =Convert.toDateTime(txtdeadline.text);
DateTime dt = DateTime.Now;

If(dt.Year=dt1.year)
{
------your logic goes here
}

Try this

var checkDate = function (sender, args) {

          var date = new Date(Date.parse(sender._selectedDate));
          var year = date.getFullYear();

          if (year > new Date().getFullYear()) {
              alert(" You cannot select a date greater than current year!");

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