//Validate Depth Values using Keypress
private void textBox3_KeyPress(object sender, KeyPressEventArgs e)
{
if (Char.IsControl(e.KeyChar) == false && Char.IsDigit(e.KeyChar) == false)
{
MessageBox.Show("Please enter a number");
e.Handled = true;
DepthField.BackColor = Color.Red;
DepthField.Focus();
}
else
{
DepthField.BackColor = System.Drawing.SystemColors.Window;
}
}
//Validate Depth Values using Constraint
private void textBox3_Validating(object sender, CancelEventArgs e)
{
if (int.TryParse(DepthField.Text, out int DepthInput) == true)
{
if (DepthInput < Desk.MINDEPTH || DepthInput > Desk.MAXDEPTH)
{
MessageBox.Show("Please enter a depth from " + Desk.MINDEPTH + " to " + Desk.MAXDEPTH + " inches");
DepthField.Text = String.Empty;
DepthField.BackColor = Color.Red;
DepthField.Focus();
}
else
{
DepthField.BackColor = System.Drawing.SystemColors.Window;
}
}
}