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How do I get the value of the radio button?

Anonymous User 2531 17 Dec 2013

Here are my options (names) for the radio button:

4

2

1

0.5

0.25

I tried using this but it's giving me an error:

multiplier = Convert.ToDouble(radioButton1.SelectedItem.ToString());

'System.Windows.Forms.RadioButton' does not contain a definition for 'SelectedItem' and no extension method 'SelectedItem' accepting a first argument of type 'System.Windows.Forms.RadioButton' could be found (are you missing a using directive or an assembly reference?)

How do I set the value of the multiplier based on what the user set in the radio button?

Ask by Anonymous User

Updated 17 Dec 2013

1 Answers

Pravesh Singh 17 Dec 2013

Hi Chintoo,

As said in the error message, RadioButton has no SelectedItem property. You should be getting the radiobutton text instead.

multiplier = Convert.ToDouble(radioButton1.Text);

If you want to check if the radiobutton is selected, use Checked property instead

if (radioButton1.Checked)
{
    multiplier = Convert.ToDouble(radioButton1.Text);
}
In your case you could use a loop
foreach (RadioButton d in this.Controls.OfType<RadioButton>())
{
    if (d.Checked)
    {
         multiplier = Convert.ToDouble(d.Text);
    }
}

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