Which Radio Button in the Group Is Checked

Checking Value of Radio Button Group via JQUERY?

If you are using a javascript library like jQuery, it's very easy:

alert($('input[name=gender]:checked').val());

This code will select the checked input with gender name, and gets it's value. Simple isn't it?

Live demo

How to check which radio button of a radio group is selected? [ANDROID]

This is working perfectly:

RadioGroup radioGroup = (RadioGroup) findViewById(R.id.radio_group);

int radioButtonID = radioGroup.getCheckedRadioButtonId();

RadioButton radioButton = (RadioButton) radioGroup.findViewById(radioButtonID);

String selectedText = (String) radioButton.getText();

Which Radio button in the group is checked?

You could use LINQ:

var checkedButton = container.Controls.OfType<RadioButton>()
                                      .FirstOrDefault(r => r.Checked);

Note that this requires that all of the radio buttons be directly in the same container (eg, Panel or Form), and that there is only one group in the container. If that is not the case, you could make List<RadioButton>s in your constructor for each group, then write list.FirstOrDefault(r => r.Checked).

How to check if a radio button in each group is checked in jQuery?

Here is how I would do it:

var all_answered = true;
$("input:radio").each(function(){
  var name = $(this).attr("name");
  if($("input:radio[name="+name+"]:checked").length == 0)
  {
    all_answered = false;
  }
});
alert(all_answered);

That way you do not need to rely on sibling or parent tags. If your radio buttons are mixed up with whatever tag, it'll still work. You can play around with it.

How to check if a radiobutton is checked in a radiogroup in Android?

If you want to check on just one RadioButton you can use the isChecked function

if(radioButton.isChecked())
{
  // is checked    
}
else
{
  // not checked
}

and if you have a RadioGroup you can use

if (radioGroup.getCheckedRadioButtonId() == -1)
{
  // no radio buttons are checked
}
else
{
  // one of the radio buttons is checked
}

Check if each radiobutton group has one radiobutton selected/checked

set IsChecked=true for the first RadioButton in each group by default. It cannot be unchecked from UI and then you will not need validation.

alternatively, check every group:

bool success = 
     (rbElektroBauseitig.IsChecked == true || rbElektroLuxhaus.IsChecked == true) &&
     (rbSATJa.IsChecked == true || rbSATVorb.IsChecked == true  || rbSATVorb.IsChecked == true) &&
     (rbPVJa.IsChecked == true || rbPVVorb.IsChecked == true  || rbPVNein.IsChecked == true);

if (!success) 
     MessageBox.Show("Dear User, you didn't make selection");

How do I get which radio button is checked from a groupbox?

You can find all checked RadioButtons like

var buttons = this.Controls.OfType<RadioButton>()
                           .FirstOrDefault(n => n.Checked);

Also take a look at CheckedChanged event.

Occurs when the value of the Checked property changes.

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