如何在asp.net中使用Javascript计算年龄 [英] How to calculate age using Javascript in asp.net

问题描述

如何在asp.net c＃中使用javascript计算年龄。



我有两个文本框。在一个文本框中我输入了日期，甚至在onblur上，我将javascript代码用于计算年龄。我可以很容易地在弹出窗口中显示年龄。我的问题是如何自动将年龄插入第二个文本框。



我的Javascript代码： -

< script type =   text / javascript> 
  function  checkAge（）{
  var  today =  new  日期（）; 
  var  d; 
  var  dateEntered =  document  .getElementById（'  <％= TextBox7.ClientID％>'）。value; 
  var  objRegExp = / \d { 1 ， 2 } \-\d { 1 ， 2 } \- \d { 4 } $ / 
  if （！objRegExp.test（dateEntered）） {
 alert（' 日期格式不正确'）; 
  return   false ; 
} 
 d = dateEntered.split（'   - '）; 
  var  yearEntered =  parseInt （d [ 2 ]）; 
  var  nowYear =  parseInt （today.getFullYear（））; 
  var  age = nowYear  -  yearEntered; 
警报（年龄）; 
  //  返回false;  
} 
< / script> ; 

第一个文本框的Aspx代码： -

 <   asp：TextBox     ID   =  TextBox7    onblur   =  Javascript：checkAge（ ）;    runat   =  server    OnTextChanged   =  TextBox7_TextChanged   宽度  =  150px >  <   / asp：TextBox  >  

解决方案

/
if （！objRegExp.test（dateEntered））{
alert（' 日期格式不正确）;
return false ;
}
d = dateEntered.split（' - '）;
var yearEntered = parseInt （d [ 2 ]）;
var nowYear = parseInt （today.getFullYear（））;
var age = nowYear - yearEntered;
警报（年龄）;
// 返回false;
}
< / script> ;

第一个文本框的Aspx代码： -

 <   asp：TextBox     ID   =  TextBox7    onblur   =  Javascript：checkAge（ ）;    runat   =  server    OnTextChanged   =  TextBox7_TextChanged   宽度  =  150px >  <   / asp：TextBox  >  

尝试这个 [ ^ ] out。

如果你已经在Textbox onblur事件上计算了年龄，那么你就没有了将问题分配给第二个文本框的问题。我已经回答了类似的问题，请查看以下链接



如何在页面加载时自动计算 [ ^ ]



希望这会有所帮助

How do I calculate age using javascript in asp.net c#.

I have two textboxes. In one textbox I entered date, and on the onblur even, I alled javascript code to calculate age. I could easily show the age in popup. My question is how do I automatically insert age in to the second text box.

My Javascript code:-

<script type="text/javascript">
        function checkAge() {
            var today = new Date();
            var d;
            var dateEntered = document.getElementById('<%=TextBox7.ClientID %>').value;
         var objRegExp = /\d{1,2}\-\d{1,2}\-\d{4}$/
         if (!objRegExp.test(dateEntered)) {
             alert('Date not in correct format');
             return false;
         }
         d = dateEntered.split('-');
         var yearEntered = parseInt(d[2]);
         var nowYear = parseInt(today.getFullYear());
         var age = nowYear - yearEntered;
         alert(age);
         //return false;
     }
    </script>

Aspx code for first textbox:-

<asp:TextBox ID="TextBox7" onblur="Javascript:checkAge();" runat="server" OnTextChanged="TextBox7_TextChanged" Width="150px"></asp:TextBox>

解决方案

/ if (!objRegExp.test(dateEntered)) { alert('Date not in correct format'); return false; } d = dateEntered.split('-'); var yearEntered = parseInt(d[2]); var nowYear = parseInt(today.getFullYear()); var age = nowYear - yearEntered; alert(age); //return false; } </script>

Aspx code for first textbox:-

<asp:TextBox ID="TextBox7" onblur="Javascript:checkAge();" runat="server" OnTextChanged="TextBox7_TextChanged" Width="150px"></asp:TextBox>

Try this[^] out.

If you already calculated age on the Textbox onblur event then you wont have problem to just assign it to the second textbox. I have answered a similar question , May Check the below link

How to Auto Calculate on Page Load[^]

Hope this helps

这篇关于如何在asp.net中使用Javascript计算年龄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！