// +/- 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);
}
