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.NET Forum / ASP.NET / General / July 2007explain "instant member"
Can you explain what they mean by "instant member" for instance, in the article about arraylists, it says it's thread safe but it's instant members are not. What does that mean? http://msdn2.microsoft.com/en-us/library/system.collections.arraylist.aspx > Can you explain what they mean by "instant member" for instance, in > the article about arraylists, it says it's thread safe but it's > instant members are not. What does that mean? > > http://msdn2.microsoft.com/en-us/library/system.collections.arraylist. > aspx It's not "instant" (as in "immediate"), it's "instance", meaning you need to have an (instance of an) object to access that method. See the "Add" method (and most of the other methods for ArrayList) The opposite is "static" (I think it's "Shared" in VB) where you don't need an instance. See the "ReadOnly" method and a couple of others. Hans Kestin > Can you explain what they mean by "instant member" for instance, in the > article about arraylists, it says it's thread safe but it's instant > members are not. What does that mean? > > http://msdn2.microsoft.com/en-us/library/system.collections.arraylist.aspx The term you refer to is "instance member". The caution in the cited article, "Any instance members are not guaranteed to be thread safe", refers to the fact that you can create an ArrayList to hold any "type", and that you need to refer to the class definition for a given type to determine if that type is thread safe. It isn't "instant" members, it is "instance" members. Instance members are members that are not shared (static). So if the method is not shared/static, it is not thread safe. > Can you explain what they mean by "instant member" for instance, in the > article about arraylists, it says it's thread safe but it's instant members > are not. What does that mean? > > http://msdn2.microsoft.com/en-us/library/system.collections.arraylist... Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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