Changing a label's text in another form in C#?

Question

I have a label called LabelX1. This is on form2. On form1, i have a button. I want the button\'s text to be transferred to the other form\'s label. I have tried

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Answer 1

form2 frm2 = new form2();
((Label)frm2.Controls["labelX1"]).Text=button1.Text;
frm2.Show();