private void radioButton_CheckedChanged(object sender, EventArgs e)
{
RadioButton radioButton = sender as RadioButton;
if (radioButton == null)
{
return;
}
RadioGroupBox target = radioButton.Parent as RadioGroupBox;
if (target == null)
{
return;
}
if (this.m_bDisableChildrenIfUnchecked == true)
{
bool bEnabled = this.m_radioButton.Checked;
foreach (Control control in this.Controls)
{
if (control != this.m_radioButton)
{
control.Enabled = bEnabled;
}
}
}
if (target.Checked == false)
{
return;
}
Control parentControl = target.Parent;
if (parentControl == null)
{
return;
}
foreach (Control childControl in parentControl.Controls)
{
if (childControl is RadioGroupBox)
{
if (childControl != this)
{
(childControl as RadioGroupBox).Checked = false;
}
}
}
if (CheckedChanged != null)
{
CheckedChanged(sender, e);
}
}
/// <summary>
/// Hooks Check callback events of RadioButton objects within the panel to the RadioButtonPanel object.
/// </summary>
public void AddCheckEventListeners()
{
foreach (Control control in this.Controls)
{
RadioButton radioButton = control as RadioButton;
if (radioButton != null)
{
radioButton.CheckedChanged += new EventHandler(radioButton_CheckedChanged);
}
else
{
RadioGroupBox radioGroupBox = control as RadioGroupBox;
if (radioGroupBox != null)
{
radioGroupBox.CheckedChanged += new EventHandler(radioGroupBox_CheckedChanged);
}
}
}
}
private void HandleRadioButtonClick(Control clickedControl)
{
if (clickedControl == null)
{
return;
}
if (clickedControl.Parent is RadioGroupBox)
{
// If a RadioGroupBox is checked, the sender is the RadioButton,
// not the RadioGroupBox, but we need the RadioGroupBox object.
clickedControl = clickedControl.Parent;
}
RadioButton clickedRadioButton = clickedControl as RadioButton;
if (clickedRadioButton != null)
{
if (clickedRadioButton.Checked != true)
{
// Only respond to check events that pertain to the control being checked on
return;
}
}
else
{
RadioGroupBox clickedRadioGroupBox = clickedControl as RadioGroupBox;
if (clickedRadioGroupBox != null)
{
if (clickedRadioGroupBox.Checked != true)
{
// Only respond to check events that pertain to the control being checked on
return;
}
}
}
foreach (Control control in this.Controls)
{
if (control != clickedControl)
{
RadioButton radioButton = control as RadioButton;
if (radioButton != null)
{
// Normally .NET and WinForms would take care of this but
// we need a mechanism that turns off radio buttons if a
// radio group box is checked.
if (radioButton.Checked != false)
{
radioButton.Checked = false;
}
}
else
{
RadioGroupBox radioGroupBox = control as RadioGroupBox;
if (radioGroupBox != null)
{
radioGroupBox.Checked = false;
}
else
{
// Not expected... must be some other kind of control.
}
}
}
}
}