使用复选框清除表单 [英] Clear form using a checkbox

问题描述

我正尝试使用复选框清除表单，但我不希望重置清除复选框本身。我使用的代码如下：

 < input name =no_cageid =no_cagetype =复选框value =1onclick =this.form.reset（）;> 
  

当我点击复选框时，它会清除表单，但不幸的是， p>

复选框还会更新一个数据库，如果选中，则为1，如果未选中，则为0。所以我需要它的形式，它需要能够切换之间选中和未选中。

解决方案

有两种方法做到这一点：

创建一个javascript函数重置表单，然后再次选中复选框为true。

使用JQuery ：

 < script src =https://ajax.googleapis.com/ AJAX /库/ jquery的/ 2.1.1 / jquery.min.js>< /脚本> 
< script type =text / javascript> $（）。$（$）$（$）$（$）$（$）$ ）; 
 this.checked = true; 
} 
}）; 
< / script> 
< form id =client> 
< input type =text> 
< input id =no_cagetype =checkboxvalue =1> CLEAR 
< / form> 
  

使用Javascript ：

 < script type =text / javascript> 
函数clearform（）{
 if（document.getElementById（no_cage）。checked == true）{
 document.getElementById（client）。reset（）; 
 document.getElementById（no_cage）。checked = true; 
} 
} 
< / script> 
< form id =client> 
< input type =text> 
< input id =no_cagetype =checkboxonclick =javascript：clearform（）;> CLEAR 
< / form> 
  

OR，
保留复选框不在表单中

 < script type =text / javascript> 
函数clearform（）{
 document.getElementById（client）。reset（）; 
} 
< / script> 
< form id =client> 
< input type =text> 
< / form> 
< input id =no_cagetype =checkboxvalue =1onclick =javascript：clearform（）;> CLEAR 
  

I am trying to use a checkbox to clear a form but I do not want the reset to clear the checkbox itself. The code I am using is as follows:

<input name="no_cage" id="no_cage" type="checkbox" value="1" onclick="this.form.reset();">

When I click on the checkbox it clears the form fine but unfortunately, also clear itself too.

The checkbox also updates a db with a 1 if checked or a 0 if unchecked. So I need it within the form and it needs to be able to toggle between checked and unchecked.

解决方案

There are two ways to do this:

Create a javascript function to reset the form and then check the checkbox again to true.

Using JQuery:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).on('change', '#no_cage', function() {
    if(this.checked) {
        document.getElementById("client").reset();
        this.checked = true;
    }
});
</script>
<form id="client">
    <input type="text">
    <input id="no_cage" type="checkbox" value="1"> CLEAR
</form>

Using Javascript:

<script type="text/javascript">
function clearform(){
    if (document.getElementById("no_cage").checked == true){
        document.getElementById("client").reset();
        document.getElementById("no_cage").checked = true;
    }
}
</script>
<form id="client">
    <input type="text">
    <input id="no_cage" type="checkbox" onclick="javascript:clearform();"> CLEAR
</form>

OR, keep the checkbox out of the form

<script type="text/javascript">
function clearform(){
    document.getElementById("client").reset();
}
</script>
<form id="client">
    <input type="text">
</form>
<input id="no_cage" type="checkbox" value="1" onclick="javascript:clearform();"> CLEAR

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