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I would like to be able to check/select a radiobutton and then uncheck/deselect(if they select the wrong filed by chance) . Is there a way to do this in
Updated 30-Jul-22 8:42am

I will suggest you to use Checkbox control where you can actually do what you have asked.
But radio button is only that you want to use refer following code :

bool blnState;

public Form1()

private void radioButton1_MouseDown(object sender, MouseEventArgs e)
    blnState = radioButton1.Checked;

private void radioButton1_MouseUp(object sender, MouseEventArgs e)
    radioButton1.Checked = !blnState;

where radioButton1 is the name of the radio button that you are using.
I have used the mousedown and mouseup events of this control.
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sam, atlanta 31-Jan-11 13:08pm    
It worked correctly pravin...
Pravin Patil, Mumbai 1-Feb-11 1:19am    
congrats sam
Are you talking about OnCheckedChanged event[^]

As said by Vinoth you need to set autopostback property to true.
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