// +/- operator button private void button23_Click(object sender, EventArgs e) { try { ValidatorClass.ValidateEntryReturn(textBox1.Text); textBox1.Text = UitlityClass.AppendPlusMinusOperator(textBox1.Text); } catch (Exception) { MessageBox.Show("Invalid Operation"); } }
//power button private void button20_Click(object sender, EventArgs e) { try { TextBoxNumber = ValidatorClass.ValidateEntryReturn(textBox1.Text); UitlityClass.ClearTextBox(textBox1); label3.Text = UitlityClass.AddTextToString(TextBoxNumber, " ^"); Operation = OperatorCode.POWER; } catch (Exception) { Console.WriteLine("Invalid Opeartion"); } }
// Tangent button private void button10_Click(object sender, EventArgs e) { try { TextBoxNumber = ValidatorClass.ValidateEntryReturn(textBox1.Text); UitlityClass.ClearTextBox(textBox1); label3.Text = UitlityClass.AddTextToString("Tan() ", TextBoxNumber); Operation = OperatorCode.TANGENT; } catch (Exception) { MessageBox.Show("Invalid Operation"); } }
// subtraction button private void button9_Click(object sender, EventArgs e) { try { TextBoxNumber = ValidatorClass.ValidateEntryReturn(textBox1.Text); UitlityClass.ClearTextBox(textBox1); label3.Text = UitlityClass.AddTextToString(TextBoxNumber, " -"); Operation = OperatorCode.SUBTRATION; } catch (Exception ex) { MessageBox.Show("Invalid Operation"); } }
// button 5 private void button12_Click(object sender, EventArgs e) { UitlityClass.AppendToTextBox(textBox1, 5); //textBox1.Text = textBox1.Text + 5; }
// backspace button private void button2_Click(object sender, EventArgs e) { textBox1.Text = UitlityClass.RemoveLast(textBox1); }