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private void Form1_Load(object sender, EventArgs e)
{
button1.Click += new EventHandler(ClickHandler);
button2.Click += new EventHandler(ClickHandler);
button3.Click += new EventHandler(ClickHandler);
button4.Click += new EventHandler(ClickHandler);
}
public void ClickHandler(object sender, EventArgs e)
{
MessageBox.Show("geklickt: " + ((Button)sender).Name);
}
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