lookup

问题 Let's open class Module and add a method to it: class Module def foo puts "phew" end end I can call this method by doing this, Class.foo which is understandable because class of Class is Class , whose superclass is Module . so it can call instance methods defined in Module . Now, the method bar below is defined on Module 's eigenclass: class Module def self.bar puts "bar" end end but now Class.bar also works. Can someone explain me how Class can access methods in Module 's eigenclass? I think

问题 Let's open class Module and add a method to it: class Module def foo puts "phew" end end I can call this method by doing this, Class.foo which is understandable because class of Class is Class , whose superclass is Module . so it can call instance methods defined in Module . Now, the method bar below is defined on Module 's eigenclass: class Module def self.bar puts "bar" end end but now Class.bar also works. Can someone explain me how Class can access methods in Module 's eigenclass? I think

问题 Let's open class Module and add a method to it: class Module def foo puts "phew" end end I can call this method by doing this, Class.foo which is understandable because class of Class is Class , whose superclass is Module . so it can call instance methods defined in Module . Now, the method bar below is defined on Module 's eigenclass: class Module def self.bar puts "bar" end end but now Class.bar also works. Can someone explain me how Class can access methods in Module 's eigenclass? I think

问题 How do I perform a reverse DNS lookup, that is how do I resolve an IP address to its DNS hostname in Perl? 回答1: gethostbyaddr and similar calls. See http://perldoc.perl.org/functions/gethostbyaddr.html 回答2: If you need more detailed DNS info use the Net::DNS module, here is an example: use Net::DNS; my $res = Net::DNS::Resolver->new; # create the reverse lookup DNS name (note that the octets in the IP address need to be reversed). my $IP = "209.85.173.103"; my $target_IP = join('.', reverse

问题 How do I perform a reverse DNS lookup, that is how do I resolve an IP address to its DNS hostname in Perl? 回答1: gethostbyaddr and similar calls. See http://perldoc.perl.org/functions/gethostbyaddr.html 回答2: If you need more detailed DNS info use the Net::DNS module, here is an example: use Net::DNS; my $res = Net::DNS::Resolver->new; # create the reverse lookup DNS name (note that the octets in the IP address need to be reversed). my $IP = "209.85.173.103"; my $target_IP = join('.', reverse

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago . I need to determine if an unknown 5 or 6 letter string is a valid word, i.e. is in the dictionary. I could submit the string/word to an online dictionary, but I need to check this string/word, which will be different each time, for about 100 to 150 times. This seems to be a bit

问题 lock(dictionaryX) { dictionaryX.TryGetValue(key, out value); } is locking necessary while doing lookups to a Dictionary ? THe program is multithreaded, and while adding key/value to dict. dict is being locked. 回答1: Locking is only needed when you are synchronizing access to a resource between threads. As long as there are not mulitple threads involved then locking is not needed here. In the context of updating and reading the value from multiple threads, yes a lock is absolutely necessary. In

问题 When AX generates forms and grids, all the lookups are populated properly, but the ID of the lookup item is displayed in the form. The only way to see values that make sense is to click on the field--not really ideal. Is there a way to display the lookup value in the form instead of the id number behind it? I would like the "tableB" form to display the tableA_value instead of the tableA_id. tableA tableA_id (int - unique) tableA_value (string - non-unique) tableB tableB_id (int - unique)

问题 I want to take a value from lookup field. But I neet to make invisible this field. My code is this: public void lookup() { Query query = new Query(); QueryBuildDataSource queryBuildDataSource; QueryBuildRange queryBuildRange; SysTableLookup sysTableLookup = SysTableLookup::newParameters(tableNum(MYTable), this); sysTableLookup.addLookupField(fieldNum(MYTable, FieldTableA)); sysTableLookup.addLookupField(fieldNum(MYTable, FieldTableB)); sysTableLookup.addLookupField(fieldNum(MYTable, RecId),

问题 I have a problem with a standard lookup field. When I try to save it, it has value null when I use autocomplete or just type the name but it works when I use the lookup popup by clicking the lookup-icon. This is (part of) the code. (Not all of it, but even this simple controller and page doesn't work...) Controller: public with sharing class UnresolvedItemsController { public list<TaskItem> myUnresolvedTaskItems {get;set;} public class TaskItem { public string taskId {get;set;} public string