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YoucreateacustomcontrolnamedOrderForm.Youwritethefollowingcodesegment.publicdelegatevoidCheckOrderFormEventHandler(EventArgse);privatestaticreadonlyobjectCheckOrderFormKey=newobject();publiceventCheckOrderFormEventHandlerCheckOrderForm{add{Events.AddHandler(CheckOrderFormKey,value);}remove{Events.RemoveHandler(CheckOrderFormKey,value);}}YouneedtoprovideamethodthatenablestheOrderFormcontroltoraisetheCheckOrderFormevent.Whichcodesegmentshouldyouuse?（）
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B.
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D.
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更多 “ YoucreateacustomcontrolnamedOrderForm.Youwritethefollowingcodesegment.publicdelegatevoidCheckOrderFormEventHandler(EventArgse);privatestaticreadonlyobjectCheckOrderFormKey=newobject();publiceventCheckOrderFormEventHandlerCheckOrderForm{add{Events.AddHandler(CheckOrderFormKey,value);}remove{Events.RemoveHandler(CheckOrderFormKey,value);}}YouneedtoprovideamethodthatenablestheOrderFormcontroltoraisetheCheckOrderFormevent.Whichcodesegmentshouldyouuse?（）A.B.C.D. ” 相关考题
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