Hi guys... We have several modules and areas of code that dynamically add the DNN Captcha web control to a page. We are running into issues between postbacks with maintaing the controls viewstate. Here is the basics...

1. Between postbacks if the page changes (as far as what controls are there, which controls are not there, etc...) and Captcha is present the the entire page creates a viewstate error.

2. If I turn CaptchaControl.EnableViewState = False - Then I get no errors for failed to load viewstate upon postback, however I don't have access to that property of what the correct Captcha field is. 

I have tried and tested several options but I keep running into viewstate problems. If EnableViewState=True is set and the page posts back with different controls being displayed/not displayed then the control will throw a viewstate error, if the EnableViewState=False then the control doesn't throw any errors however I have no access to what the image is.

 

Any ideas?

 

-Chad

 

Wes' option will work, but I had major problems when using Denis Bauers' placeholder in my code.

I have gotten around it by just setting the visbility of the Captcha, it isn't the most elegant, but it is the most functional.

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-Mitchel Sellers
Microsoft MVP, ASPInsider, DNN MVP
CEO/Director of Development - IowaComputerGurus Inc.


Visit mitchelsellers.com for my mostly DNN Blog and support forum.

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