在按键事件中,如何将','更改为'〜'

时间:2011-03-10 22:09:00

标签: javascript jquery coldfusion-9

我必须防止Coldfusion的默认列表分隔符','被输入到表单输入数组中。我是新手使用javascript进行验证,并且从未尝试切换某人输入的值。我如何抓住逗号,并将其替换为tilda?

我到目前为止尝试过Javascript:

    $(document).ready(function(event){
      var regExComma = /,/;
      $("[name='name[]']").live("keypress",function(event){
// i know i could check the numerical value, i feel this requirement can get more added to it and I would like to just change the regEx accordingly.
        if(regExComma.test(String.fromCharCode(event.which)){
//it was a ',' switch it to '~'
         event.which = 126;
        }
      });
// added to show that the 'name' input form array is the only input that cares about the ','
    var regExDig = /[\d]/
    $("[name=min[]],[name=max[]]").live(keypress, function(event){
       if(!regExDig .test(String.fromCharCode(event.which)){
        event.preventDefault();
        $("#cfocFormMessages").trigger("updateMessages", {"url":"components.cfc/CFOC.cfc", "data":{"more":"stuff"}});
       }
    });
            });

参与cfml / html:

<form action="components/CatagoryService.cfc?method=saveVersion">
<input id="version" name="version" type="text">
<!--- .. more inputs ..--->
<table id="table">
  <thead><tr><th>name col</th>
  <th>min col</th>
  <th>max col</th>
  <th>edit</th>
</tr></thead>
  <tfoot></tfoot>
  <cfoutput query="variables.query">
  <tr><td><input name="name[]" type="text" value="#variables.query.name#"></td>
   <td><input name="min[]" type="text" value="#variables.query.min#"></td>
   <td><input name="max[]" type="text" value="#variables.query.max#"></td>
   <td><input name="id[]" type="hidden" value="#variables.query.id#">
     <a href="#" class="editLink">edit</a></td>
  </tr>
  </cfoutput>
  <tr><td></td><td></td><td><a href="#" class="addLink">add</a></td></td></tr>
</table>
<input type="Submit"/>
</form>

如果我在JSON字符串中将CatagoryService.cfc?method = saveVersion更改为<cfreturn arguments>,Coldfusion的典型响应如下:

{VERSION:"",name:"name1,name2",min:"1,3", max:"2,4",id:"1,2"}

3 个答案:

答案 0 :(得分:3)

我把your HTML on jsfiddle(您可以在那里测试)并使用匹配所有和元素的选择器添加此JavaScript:

$(document).ready(function(event){
    $(document).delegate("input, textarea", "keyup", function(event){
        if(event.which === 188) {
            var cleanedValue = $(this).val().replace(",","~");
            $(this).val(cleanedValue);
        }
    });
});

如果输入了逗号(代码188),则值字符串中的所有逗号都替换为代字号。

请记住,JavaScript验证不是您想要依赖的。逗号可以很容易地发送到服务器或永远不会被替换,例如在禁用JavaScript的用户代理中。

答案 1 :(得分:1)

我将名称[] .live()event.which = 126;替换为event.originalEvent.keyCode=126;

var regExComma = /,/;
$("[name='name[]']").live("keypress",function(event){
     if(regExComma.test(String.fromCharCode(event.which)){
       //this line works as expected. and will swap out the value on keypress.
       if(event.originalEvent.keyCode){
         event.originalEvent.keyCode=126;
       }else if(event.originalEvent.charCode){
         event.originalEvent.charCode=126;
       }
     }
});

wolfram我也提升了你的keyUp解决方案。

答案 2 :(得分:0)

Imho,没有必要检查这些keyCodes:

 $(document).ready(function(event){
    $('#fieldName').keyup(function(event) {
        var cleanedValue = $(this).val().replace(",","~");
        $(this).val(cleanedValue);
    });
});

jsFiddle上查看。