null event 中文意思是什麼
null event
解釋
零事件, 無價值事件-
To avoid a race condition where the last handler can be removed between the null check and the invocation of the event, event sources should also create a copy of the event before performing the null check and raising the event
若要避免爭用條件(最後一個處理程序會在空檢查和事件調用之間被移除) ,在執行空檢查和引發事件之前,事件源還應創建事件的一個副本。 -
A null - delimited list of fully qualified event source interface names
事件源介面的完全限定名列表,名稱之間用null分隔。 -
If you specify more than one source interface, the value returned is a null - delimited list of fully qualified event source interface names
如果指定一個以上源介面,則返回值為事件源介面的完全限定名列表,名稱之間用null分隔。 -
Do not pass null nothing in visual basic as the sender parameter when raising a non - static event
當引發非靜態事件時,不要將null (在visual basic中為nothing )作為sender參數進行傳遞。 -
The resulting event provider name, which is stored in the underlying event table, is null
產生的事件提供程序的名稱(存儲在基礎事件表中)為null 。
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