字母数字javascript无法在IE上运行 [英] alphanumeric javascript not working on IE

问题描述

我有一个用于字母数字验证的javacript代码

 function alphnumericValidate（ event ）{
 
  var  val; 
  if （navigator.appName ==   Microsoft Internet Explorer）
 val = window。 event  .keyCode; 
  else   if （navigator.appName ==    Mozilla）
 val =  event  .keyCode; 
  //   if（val> = 48&& val< = 57 || val> ; = 65&& val< = 90 || val> = 97&& val< = 122）{ 
  //   var txt = obj.value;  
 document.all？ k =  event  .keycode：k =  event  .which; 
  return （（k >   47 && k <   58 ）||（k >   64 && k <   91 ）||（k >   96 && ; k <   123 ）|| k ==  0  || k ==  8 ）; 
} 

它在其他浏览器中正常工作但不能在IE上工作



string onKeyPress = String.Format（return alphnumericValidate（event，this.value）;，this.ClientID）;



i不知道怎么做......

解决方案

请试试这个，在IE中测试



注意：根据您的具体要求更改正则表达式。



aspx页面控制

< input type =textrunat =serverid =txtNameonkeydown =javascript：checkCharacter（event）; /> 

Javascript脚本

 < script type =text / javascriptlanguage =javascript> 
 

 function checkCharacter（e）{
  var  key; 
  if （e.keyCode）key = e.keyCode; 
  else   if （e.which）key = e.which; 
 alert（ String  .fromCharCode（key））; 
  if （/ [^ A-Za-z0-9] / .test（ String  .fromCharCode（key）））
 {
 alert（  Bad） ; 
 
} 
  else  
 {
 alert（  好）; 
} 
} 
 
 < /   script  >  

请尝试这个解决方案，这是特定于浏览器，只允许输入字母数字字符。



注意：在IE中测试



ASPX代码

< asp：TextBox ID =txtNameonKeyPress =return CharacterCheck（event）; runat =server/> 

Java脚本

 < span class =code-keyword><   script     type   =  text / javascript >  
函数CharacterCheck（e）{
 var keynum; 
 var keychar; 
 var charcheck; 
 if（window.event）// IE 
 keynum = e.keyCode; 
 else if（e.which）// Netscape / Firefox / Opera 
 keynum = e.which; 
 keychar = String.fromCharCode（keynum）; 
 charcheck = / [a-zA-Z0-9] /; 
返回charcheck.test（keychar）; 
} 
 <   / script  >  

i have a javacript code for alphanumeric validation

function alphnumericValidate(event) {

    var val;
    if (navigator.appName == "Microsoft Internet Explorer")
        val = window.event.keyCode;
    else if (navigator.appName == "Mozilla")
        val = event.keyCode;
//    if (val >= 48 && val <= 57 || val >= 65 && val <= 90 || val >= 97 && val <= 122) {
//        var txt = obj.value;
    document.all ? k = event.keycode : k = event.which;
        return ((k > 47 && k < 58) || (k > 64 && k < 91) || (k > 96 && k < 123) || k == 0 || k == 8);
}

it's work fine in other browser but not working on IE

string onKeyPress = String.Format("return alphnumericValidate(event,this.value);", this.ClientID);

i don't know how to do this ...

解决方案

Hi,

Please try this, Tested in IE

Note: Change the Regular expression, as per your specific requirements.

aspx Page Control

<input type="text" runat="server" id="txtName" onkeydown="javascript:checkCharacter(event);"  />

Javascript Script

<script type="text/javascript" language="javascript">

function checkCharacter(e) {
        var key;
        if (e.keyCode) key = e.keyCode;
        else if (e.which) key = e.which;
        alert(String.fromCharCode(key));
        if (/[^A-Za-z0-9 ]/.test(String.fromCharCode(key)))
        {
            alert("Bad");

        }
        else
        {
            alert("Good");
        }
    }

</script>

Hi,

Please try this solution also, this is specific to browsers and allows only Alpha Numeric characters to be entered.

Note: Tested in IE

ASPX Code

<asp:TextBox ID="txtName" onKeyPress="return CharacterCheck(event);" runat="server" />

Java Script

<script type="text/javascript">
    function CharacterCheck(e) {
        var keynum;
        var keychar;
        var charcheck;
        if (window.event) // IE
            keynum = e.keyCode;
        else if (e.which) // Netscape/Firefox/Opera
            keynum = e.which;
        keychar = String.fromCharCode(keynum);
        charcheck = /[a-zA-Z0-9]/;
        return charcheck.test(keychar);
    }
</script>

这篇关于字母数字javascript无法在IE上运行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！