Issue with Asp.Net MandatoryFieldValidator and JavaScript What You See Is What You Get Editor

Currently, I am utilizing the Javascript WYSIWYG tool from OpenWebWare along with Asp.Net's RequiredFieldValidator on a TextBox that is linked to the WYSIWYG. So far, everything is functioning properly, however, upon the first form submission attempt, I receive a server-side RFV ErrorMessage stating "Required." Oddly enough, upon a second submission attempt, the form goes through successfully.

My question is: what am I overlooking? I am aiming to implement client-side validation. How can I ensure that the text is recognized as not empty?

Answer №1

One possible explanation for this issue is that the validation code is being executed before the code that updates the content of the TextBox based on the WYSIWYG input. This can result in the error being triggered initially, but not on subsequent attempts due to the field being updated. To test this, try clearing the content on the second attempt - you may find that the error does not occur because the validator is based on the original submission.

To resolve this issue, consider identifying a JavaScript API call for your WYSIWYG editor that can update the underlying text box field. Then, implement this call to trigger on the onclick event of your submit button or relevant action to ensure the content is updated before validation occurs.

Answer №2

Dealing with the textarea HTML tag can be quite challenging, and I have reservations about whether the client-side validator will fully support it, regardless of whether it's a WYSIWYG or not.

In my opinion, your best bet would be to utilize a CustomValidator and manually write the JavaScript code for validation.

Alternatively, you can debug the JavaScript code using tools like FireBug or VS 2008.

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