invoke event from diffrent class hierarchy
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Hi I would like to update the GUI once specific scenario occurs I’ve application that have GUI and logic layers At logic layers I have hierarchy classes witch means that class ‘A’ use class ‘B’ that use class ‘C’, etc At Class ‘C’ I would like to notify GUI (such as update counter edit box) once a condition exist (for example if ((m_num % 100) == 0)) UpdateGUI(m_num) I know I can use the event mechanism Create and register event at class A,B,C and register also the event at the GUI Is there any other way to call event from very low class to very higher class hierarchy? I hope I describe my question properly Thanks Ronen
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Hi I would like to update the GUI once specific scenario occurs I’ve application that have GUI and logic layers At logic layers I have hierarchy classes witch means that class ‘A’ use class ‘B’ that use class ‘C’, etc At Class ‘C’ I would like to notify GUI (such as update counter edit box) once a condition exist (for example if ((m_num % 100) == 0)) UpdateGUI(m_num) I know I can use the event mechanism Create and register event at class A,B,C and register also the event at the GUI Is there any other way to call event from very low class to very higher class hierarchy? I hope I describe my question properly Thanks Ronen
Ronenb wrote:
Is there any other way to call event from very low class to very higher class hierarchy?
The only other way that springs to mind is to use P/Invoke to utilize the SendMessage/PostMessage API calls. That is a lot of work though, when the Event mechanism is there.
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