我有3个无线电组,我想检查是否在每个无线电组中选择了按钮。如何检查每个收音机组中是否选择了按钮?
例如,我想这样的事情
if (in each radio group one button is selected){
do something
}
if (one of RadioGroups have no selected button) {
Show something like Toast
}
我有3个无线电组,我想检查是否在每个无线电组中选择了按钮。如何检查每个收音机组中是否选择了按钮?
例如,我想这样的事情
if (in each radio group one button is selected){
do something
}
if (one of RadioGroups have no selected button) {
Show something like Toast
}
的名字读三组。然后迭代其他它。使用条件语句检查.check。
var radios = document.getElementsByTagName('input1');
var value;
for (var i = 0; i < radios.length; i++) {
if (radios[i].type === 'radio' && radios[i].checked) {
// get value, set checked flag or do whatever you need to
value = radios[i].value;
}
}
假设您有三个radioButtons,即一个两个和三个。你可以这样做。
if(one.isChecked() || two.isChecked() || three.isChecked()){
//do something
}else if(!one.isChecked() || !two.isChecked() || !three.isChecked()){
//do something
Toast.makeText(TourClass.this, "Passwords do not match",
Toast.LENGTH_LONG).show();
}
使用getCheckedRadioButtonId()
在RadioGroup
找到检查RadioButton
。
https://developer.android.com/guide/topics/ui/controls/radiobutton.html –