Step 1: Select all Five Checkboxes in Designer then chang the Checked_Changed Event to "chkGroup_CheckedChanged"
Step 2: Then replace your code with following Code
private void chkGroup_CheckedChanged(object sender, EventArgs e)
{
if (sender.Equals(chk_Balanced))
{
radio_2ch.Enabled = true;
radio_6ch.Enabled = true;
radio_8ch.Enabled = true;
radio_48.Enabled = false;
radio_96.Enabled = false;
radio_192.Enabled = false;
}
else if (sender.Equals(chk_Unbalanced))
{
radio_2ch.Enabled = true;
radio_6ch.Enabled = true;
radio_8ch.Enabled = true;
radio_48.Enabled = false;
radio_96.Enabled = false;
radio_192.Enabled = false;
}
else if (sender.Equals(chk_Headphone))
{
radio_2ch.Enabled = true;
radio_6ch.Enabled = false;
radio_8ch.Enabled = false;
radio_48.Enabled = false;
radio_96.Enabled = false;
radio_192.Enabled = false;
}
else if (sender.Equals(chk_HDMI))
{
radio_2ch.Enabled = false;
radio_6ch.Enabled = false;
radio_8ch.Enabled = false;
radio_48.Enabled = true;
radio_96.Enabled = true;
radio_192.Enabled = true;
}
else if (sender.Equals(chk_SPDIF))
{
radio_2ch.Enabled = false;
radio_6ch.Enabled = false;
radio_8ch.Enabled = false;
radio_48.Enabled = true;
radio_96.Enabled = true;
radio_192.Enabled = true;
}
}