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This is more a windows questions than ggc question. I am dynamically attaching and detaching eventhandlers using += and -=. However, the the event is already attached, a object null ref exception is thrown. How do I check is the event is attached or detached before add or removing it.
ADAdministrator Syncfusion Team January 24, 2007 07:04 PM UTC
Hi James,
Thank you for being patience.
Please refer to the following link has lot of useful articles about discusses deeply about the delegates http://search.msdn.microsoft.com/search/default.aspx?siteId=0&tab=0&query=.Net+Delegates
Also please update us the call stack on the exception, it would help us to debug your issue at the earliest.
Kindly let us know if you need any further assistance. Have a nice day.
