if (!checkBox1.Checked && !checkBox2.Checked)
{
MessageBox.Show("Please select at least one!");
}
else if (checkBox1.Checked && !checkBox2.Checked)
{
MessageBox.Show("You selected the first one!");
}
else if (!checkBox1.Checked && checkBox2.Checked)
{
MessageBox.Show("You selected the second one!");
}
else //Both are checked
{
MessageBox.Show("You selected both!");
}
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