在Coldfusion的页面加载复选框

Question

我在Coldfusion表单上有2个复选框，如下所示。在页面加载时，我希望两者都被检查 ，并根据选中的复选框显示查询结果。我有下面的代码工作正常，除了scernario我取消勾选复选框，现在点击查看。当im设置

form.chkbox="" 

在页面加载时，即使在取消选中它们后，它们仍保持检查状态。我怎样才能让他们保持未加载页面加载。我试过使用JS功能，但它似乎并不工作

 <script type="text/javascript"> 
    function callme(){ 
var box1 = document.getElementById('chkbox1').checked; 
var box2 = document.getElementById('chkbox2').checked; 
if (box1 && box2){ 
      alert("checked") ; 
}else{  
box1.checked = false; 
box2.checked = false; 
} 
} 

</script> 

    <cfset form.chkbox=""> 

    <form action="view_emp_qual.cfm?show=yes" method="post" name="Myform"> 
    <table align="center"> 
    <tr> 
    <td> 
    <cfif isDefined("form.chkbox") and (form.chkbox eq "" or listfind(form.chkbox, 1))> 
    <input type="checkbox" checked="checked" name="chkbox" id="chkbox1" value="1">  
    <cfelse> 
    <input type="checkbox" name="chkbox" id="chkbox1" value="1"> 
    <input type="hidden" name="chkbox" id="chkbox1" value="1"> 
    </cfif> 
    <strong> Agreement Only</strong> &nbsp;&nbsp; 
    <cfif isDefineD("form.chkbox") and (form.chkbox eq "" or listfind(form.chkbox, 2))> 
     <input type="checkbox" checked="checked" name="chkbox" id="chkbox2" value="2"> 
    <cfelse> 
    <input type="checkbox" name="chkbox" id="chkbox2" value="2"> 
     <input type="hidden" name="chkbox" id="chkbox2" value="2"> 
    </cfif> 

    <strong>Active Employees</strong> &nbsp;&nbsp; 
    </td> 
    <td><input type="Submit" name="submitnow" value="View Selected" class="button" onclick="return callme();">  </td> 

     </tr> 
     </table> 
     </form> 


    <cfif not isDefined("form.chkbox")> 
    Query1 
    <cfelseif isDefined("form.chkbox") and (listfind(form.chkbox, 1) eq 0 and listfind(form.chkbox, 2) eq 1)> 
     Query 2 
    <cfelseif isDefineD("form.chkbox") and (listfind(form.chkbox, 1) eq 1 and listfind(form.chkbox, 2) eq 0)> 
    query 3 
    <cfelse> 
    query4 
    </cfif> 

Answer 1

如果您在同一页面提交表单，那么以下代码可能会解决您的目的。

我对你的主代码做了一些调整。请看一看。

<cfdump var="#form#" label="before"> 
    <!---flag for checking if form has submitted or not---> 
    <cfif Not isDefined("form.submitnow")> 
     <cfset form.chkbox = "1,2"> 
    </cfif> 
    <cfdump var="#form#" label="after"> 
    <cfif isDefined("form.chkbox") > 
    <cfdump var="#listfind(form.chkbox, 1)#" ><br> 
    <cfdump var="#listfind(form.chkbox, 2)#" > 
    </cfif> 


     <form action="" method="post" name="Myform"> 
      <table align="center"> 
       <tr> 
        <td> 
         <!---I have removed hidden fields and made a few changes in conditional checking ---> 
         <cfif isDefined("form.chkbox") and (listfind(form.chkbox, 1))> 
          <input type="checkbox" checked="checked" name="chkbox" id="chkbox1" value="1"><span>1</span>  
         <cfelse> 
          <input type="checkbox" name="chkbox" id="chkbox1" value="1"><span>2</span> 
         </cfif> 

         <strong> Agreement Only</strong> &nbsp;&nbsp; 
         <cfif isDefineD("form.chkbox") and (listfind(form.chkbox, 2))> 
          <input type="checkbox" checked="checked" name="chkbox" id="chkbox2" value="2"><span>3</span> 
         <cfelse> 
          <input type="checkbox" name="chkbox" id="chkbox2" value="2"><span>4</span> 
         </cfif> 
         <strong>Active Employees</strong> &nbsp;&nbsp; 
        </td> 
        <td> 
         <input type="Submit" name="submitnow" value="View Selected" class="button">  
        </td> 

       </tr> 
      </table> 
      </form> 


     <cfif not isDefined("form.chkbox")> 
     Query1 
     <cfelseif isDefined("form.chkbox") and (listfind(form.chkbox, 1) eq 0 and listfind(form.chkbox, 2) eq 1)> 
      Query 2 
     <cfelseif isDefineD("form.chkbox") and (listfind(form.chkbox, 1) eq 1 and listfind(form.chkbox, 2) eq 0)> 
     query 3 
    <cfelse> 
    query4 
    </cfif>