uage" content="zh-cn" /><meta name="System.Keywords" content="OnEvent_ChangeContactDeletePartyRequest 方法" /><meta name="System.Keywords" content="WorkMessageHandler%3CTMC%3E.OnEvent_ChangeContactDeletePartyRequest 方法" /><meta name="System.Keywords" content="WorkMessageHandler(Of TMC).OnEvent_ChangeContactDeletePartyRequest 方法" /><meta name="Microsoft.Help.F1" content="Senparc.Weixin.Work.MessageHandlers.WorkMessageHandler`1.OnEvent_ChangeContactDeletePartyRequest" /><meta name="Microsoft.Help.Id