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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...An error has occurred because a control with auto-generated id..An error has occurred because a control with auto-generated id..
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11/21/2007 9:09 AM
 
tony evans

Joined: 6/11/2005
Posts: 126

Hi, how can I find the source of the following error within a page?

A critical error has occurred.
An error has occurred because a control with auto-generated id 'dnn:ctr979:InstanceDetail:ViewForm:_ctl7' could not be located to raise a postback event. To avoid this error, explicitly set the ID property of controls that raise postback events.

DotNetNuke.Services.Exceptions.PageLoadException: An error has occurred because a control with auto-generated id 'dnn:ctr979:InstanceDetail:ViewForm:_ctl7' could not be located to raise a postback event. To avoid this error, explicitly set the ID property of controls that raise postback events. ---> System.Web.HttpException: An error has occurred because a control with auto-generated id 'dnn:ctr979:InstanceDetail:ViewForm:_ctl7' could not be located to raise a postback event. To avoid this error, explicitly set the ID property of controls that raise postback events. at System.Web.UI.Page.ProcessPostData(NameValueCollection postData, Boolean fBeforeLoad) at System.Web.UI.Page.ProcessRequestMain() --- End of inner exception stack trace ---

 
 
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11/21/2007 9:35 AM
 
Will Strohl


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https://upendoventures.com
Joined: 3/1/2005
Posts: 2884

Do you have any 3rd party modules on that page?  It looks like a module is dynamically generating and injecting a WebControl, but without setting the ID property.

Will Strohl

Upendo Ventures Upendo Ventures
DNN experts since 2003
Official provider of the Hotcakes Commerce Cloud and SLA support
 
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11/23/2007 10:14 AM
 
tony evans

Joined: 6/11/2005
Posts: 126

hi, yes I do have the third party module which I think is causing the problem.  How can I diagnose the problem so I can find which specific control is at fault
 
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11/23/2007 9:07 PM
 
Will Strohl


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Posts: 2884

The easy way to see this is to figure out which controls show up after a postback.  However, this is not always easy to tell, or even possible.  For instance, there may be controls that are not rendered after postback.  However, if some are, I would look to those first.  Then, the only true way of knowing, is to look through the source code (if possible).  In the source code, look for text like "Controls.Add".  Preceding this line, you would likely see the dynamically and programmatically generated control.  You are also looking for the missing [controlname].ID = 'value'.

Will Strohl

Upendo Ventures Upendo Ventures
DNN experts since 2003
Official provider of the Hotcakes Commerce Cloud and SLA support
 
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