private void btnCalculate_Click(object sender, EventArgs e) { CheckEntry objCheckQuantity = new CheckEntry(txt_Quantity.Text, lbl_quantity.Text); CheckEntry objCheckUCost = new CheckEntry(txt_unitCost.Text, lbl_unitCost.Text); if (!objCheckQuantity.isNull() && !objCheckUCost.isNull()) { double uCost = double.Parse(txt_unitCost.Text); double quan = double.Parse(txt_Quantity.Text); double tCost = uCost * quan; txt_TotalCost.Text = tCost.ToString(); } else { MessageBox.Show("Enter a value in the Quantity and Unit Cost fields."); } }
private Boolean CheckValidUser() { bool addUser = true; bool showMessage = true; //This series of if statements checks to see if required textboxes are null. //If null, the corresponding label is added to the output string. if (objCheckEntry.isNull(txtFirstName.Text, lblFirstName.Text)) { output += "\n " + lblFirstName.Text; addUser = false; } if (objCheckEntry.isNull(txtLastName.Text, lblLastName.Text)) { output += "\n " + lblLastName.Text; addUser = false; } if (objCheckEntry.isNull(cboxUserType.Text, lblUserType.Text)) { output += "\n User Type"; addUser = false; } if (objCheckEntry.isNull(txtEmail.Text, lblEmail.Text)) { output += "\n " + lblEmail.Text; addUser = false; } else { if (!objCheckEntry.isValidEmail(txtEmail.Text)) { txtEmail.Text = ""; output += "\n " + lblEmail.Text; addUser = false; showMessage = false; } } if (objCheckEntry.isNull(txtUsername.Text, lblUsername.Text)) { output += "\n " + lblUsername.Text; addUser = false; } if (objCheckEntry.isNull(txtPassword.Text, lblPassword.Text)) { output += "\n " + lblPassword.Text; addUser = false; } else { if (objPassword.DeterminePasswordStrength(txtPassword.Text) < 0) { MessageBox.Show("Password is not Strong enough!"); txtPassword.Text = ""; txtVerifyPassword.Text = ""; addUser = false; showMessage = false; } } if (objCheckEntry.isNull(txtVerifyPassword.Text, lblVerifyPw.Text)) { output += "\n " + lblVerifyPw.Text; addUser = false; } else { if (txtPassword.Text != txtVerifyPassword.Text) { MessageBox.Show("Password and Verify Password must match!"); txtPassword.Text = ""; txtVerifyPassword.Text = ""; addUser = false; showMessage = false; } } if (showMessage == true && addUser == false) { MessageBox.Show("The following fields must contain a value: " + output); } output = ""; return(addUser); }