I have added WebGauge as a part of a user control. The user control is added to page dynamically built from a database. I can see the asynch post operation of the control and the response...
eThe target 'ctl00$ContentPlaceHolder1$Gauge0$PBOParamGauge' for the callback could not be found or did not implement ICallbackEventHandler
Can anyone point me to what I may have wrong or where to look?
Version 11.1.20111.2036
Hello jedwards,
when you are adding the user control? What is the event?
Thank you
During Page_Init
I connect to the datasource and get my list of "Monitored Elements"
During Page_Load
I select a Monitored Element and Dynamically build gauges by adding a user control for each "Monitored Point".
thank you for the attached file. I was not able to reproduce this error. After I researched for more information I found an article that may help you:
Error: The target “ControlID” for the callback could not be found or did not implement ICallbackEventHandler.
Scenario 1: You try to dynamically add web controls to a ContentPlaceholder or Panel and on a postback of the page caused by triggering an event from the web control, you get the error.
Cause of Scenario 1: When the event is fired, the generated web control that fired the event is no longer on the page.
Resolution of Scenario 1: Make sure you add the dynamically generated web controls on every page load. Ex: Generate controls on !Page.IsPostBack and Page.IsPostBack cases.
Attached page and codebehind in default.zip
jedwards,
attach sample or paste your code here so we can look into it.