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Jun 27th, 2019
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  1. private void textBox1_TextChanged(object sender, EventArgs e)
  2. {
  3. int NamberA = int.Parse (textBox1.Text);
  4. try
  5. {
  6. NamberA = Convert.ToInt32(textBox1.Text);
  7. }
  8. catch(FormatException)
  9. {
  10. MessageBox.Show("Вы ввели буквы, будьте впредь аккуратны");
  11. }
  12. }
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