• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 260
  • Last Modified:

Bypass Validation For Orders with Free Products with a Zero Total


We have a website running Validation when the user clicks on the submit button to pay for the ordered products. If the user did not enter something correctly, they see a pop up message displaying whatever they did not enter correctly that cause the invalidation.  I need to be able to bypass this validation check if the order total = $0 (for free products).  

How do we set the page to ignore the validation process for free products and to check all the necessary fields for paying orders? Is there a way to do an If statement that causes validation = true is the order total field > 0?

This is the button code:

<asp:LinkButton runat="server" ID="GoToCheckoutButton" CausesValidation="true"  OnClick="GoToCheckoutButton_Click" Text="<span>Complete Purchase</span>" CssClass="text-button large" />  

and this is the validation summary:

<asp:ValidationSummary runat="server" ID="ValSummary" DisplayMode="List" ShowSummary="false" ShowMessageBox="true"  />
<asp:RequiredFieldValidator runat="server" ID="RFV_CardType" Display="None" ControlToValidate="CardTypeDropDown" ErrorMessage="Please select the credit card type." />
<asp:RequiredFieldValidator runat="server" ID="RFV_CardNumber" Display="None" ControlToValidate="CardNumberTextBox" ErrorMessage="Please enter credit card number." />
<asp:RequiredFieldValidator runat="server" ID="RFV_SecurityCode" Display="None" ControlToValidate="SecurityCodeTextBox" ErrorMessage="Please enter the security code." />
<asp:RequiredFieldValidator runat="server" ID="RFV_NameOnCard" Display="None" ControlToValidate="NameOnCardTextBox" ErrorMessage="Please enter the name on card."  />
<asp:RequiredFieldValidator runat="server" ID="RFV_ExpirationMonth" Display="None" ControlToValidate="MonthDropDownList" ErrorMessage="Please select the expiration month." />
<asp:RequiredFieldValidator runat="server" ID="RFV_ExpirationYear" Display="None" ControlToValidate="YearDropDownList" ErrorMessage="Please select the expiration year." />
<asp:RequiredFieldValidator runat="server" ID="RFV_FirstName" Display="None" ControlToValidate="FirstNameTextBox" ErrorMessage="Please enter the first name." />
<asp:RequiredFieldValidator runat="server" ID="RFV_LastName" Display="None" ControlToValidate="LastNameTextBox" ErrorMessage="Please enter the last name." />
<asp:RequiredFieldValidator runat="server" ID="RFV_Address1" Display="None" ControlToValidate="BillingAddressLine1TextBox" ErrorMessage="Please enter the address line 1." />
<asp:RequiredFieldValidator runat="server" ID="RFV_City" Display="None" ControlToValidate="CityTextBox" ErrorMessage="Please enter the city." />
<asp:RequiredFieldValidator runat="server" ID="RFV_ZipPostalCode" Display="None" ControlToValidate="ZipTextBox" ErrorMessage="Please enter the zip or postal code." />    
<asp:RequiredFieldValidator runat="server" ID="RFV_EmailAddress" Display="None" ControlToValidate="EmailAddressTextBox" ErrorMessage="Please enter the receipt email address." />
<asp:RegularExpressionValidator ID="REV_CreditCardNumber" runat="server" ControlToValidate="CardNumberTextBox" Display="None" ErrorMessage="Credit card number is not a valid card number." ValidationExpression="^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|3(?:0[0-5]|[68][0-9])[0-9]{11}|3[47][0-9]{13})$" />
<asp:RegularExpressionValidator ID="REV_SecurityCode" runat="server" ControlToValidate="SecurityCodeTextBox" Display="None" ErrorMessage="Securtiy code is 3 or 4 digits." ValidationExpression="[0-9]{3,4}" />
<asp:RegularExpressionValidator ID="REV_EmailAddress" runat="server" Display="None" ErrorMessage="Please enter a valid email address." ControlToValidate="EmailAddressTextBox" ValidationExpression="^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$" />

Thank you!
1 Solution
In your code set each of the appropriate validator's enabled property to false when total is 0.  Validation control default to true, which probably the majority of the situation.

if (totalField = 0)
    RFV_CardType.Enabled = false;
    // rest of validators
IF totalField = 0 Then
  RFV_CardType.Enabled = False
  ' rest of validators
End If

Open in new window

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

The 14th Annual Expert Award Winners

The results are in! Meet the top members of our 2017 Expert Awards. Congratulations to all who qualified!

Tackle projects and never again get stuck behind a technical roadblock.
Join Now