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public partial class Form1 : Form
private bool onLoad = true;
private void Form1_Load(object sender, EventArgs e)
radioButton1.CheckedChanged += new EventHandler(CheckedChanged);
radioButton2.CheckedChanged += new EventHandler(CheckedChanged);
radioButton3.CheckedChanged += new EventHandler(CheckedChanged);
checkBox1.CheckedChanged += new EventHandler(CheckedChanged);
checkBox2.CheckedChanged += new EventHandler(CheckedChanged);
checkBox3.CheckedChanged += new EventHandler(CheckedChanged);
protected override void OnActivated(EventArgs e)
onLoad = false;
void CheckedChanged(object sender, EventArgs e)
Control c = (Control)sender;
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