选择单选按钮时更改字段值 [英] change field value when select radio buttons
本文介绍了选择单选按钮时更改字段值的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
< input type =radio我想在选择单选按钮时更改隐藏输入字段的值: name =r1value =10/> 10
< br />>
< input type =radioname =r1value =45/> 45
< br />
< input type =hiddenname =sumvalue =/>
例如当用户点击一个按钮时,隐藏字段的值变为该值。 p>
解决方案
使用onClick属性:
< input type =radioname =r1value =10onClick =document.getElementById('hidfield')。value = this.value/> 10
< br / >
< input type =radioname =r1value =45onClick =document.getElementById('hidfield')。value = this.value/>
45
< br />
< input type =hiddenname =sumvalue =id =hidfield/>
I want to change the value of hidden input field when radio buttons selected :
<input type="radio" name="r1" value="10" />10
<br/>
<input type="radio" name="r1" value="45" />45
<br/>
<input type="hidden" name="sum" value="" />
for example when user click on one the buttons the value of hidden field change to that value.
解决方案
Use the onClick property:
<input type="radio" name="r1" value="10" onClick="document.getElementById('hidfield').value=this.value"/>10
<br/>
<input type="radio" name="r1" value="45" onClick="document.getElementById('hidfield').value=this.value"/>
45
<br/>
<input type="hidden" name="sum" value="" id="hidfield" />
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