predicate

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List<object>.RemoveAll - How to create an appropriate Predicate

This is a bit of noob question - I\'m still fairly new to C# and generics and completely new to predicates, delegates and lambda expressions...[详细]

2023-01-03 18:31 分类：问答
Help creating a predicate for use with filteredArrayUsingPredicate

I am trying to learn how to use predicates and so am trying to replace the following working code with filteredArrayUsingPredicate...[详细]

2023-01-03 02:13 分类：问答
iPad: CoreData FetchedRequest Ignores Changes in Predicate

While programming an iPad-app, I\'m just running into trouble using a fetchedResultsController with a \"dynamic\" predicate. it seems the changes to the predicate get ignored. No matter how the predic[详细]

2023-01-01 22:08 分类：问答
Linq to Sql select from multiple table

I have a question about selecting from multiple tables in C# using Linq. Table structure is like this:[详细]

2023-01-01 08:13 分类：问答
pointer delegate in STL set

I\'m kinda stuck with using a set with a pointer delegate. My code is as follows: void Graph::addNodes (NodeSet& nodes)[详细]

2022-12-31 15:08 分类：问答
Filtering subsets using Linq

Imagine a have a very long enunumeration, too big to reasonably 开发者_如何学运维convert to a list. Imagine also that I want to remove duplicates from the list. Lastly imagine that I know that only a[详细]

2022-12-30 13:00 分类：问答
How to use predicate builder with linq2sql and OR operator

I have two tables (TABLE1, TABLE2 - unique i know) that has a 1-to-man开发者_JAVA百科y relationship respectively and a foreign key between ID columns of both tables.[详细]

2022-12-27 23:54 分类：问答
How to define a predicate as a function argument

I want to be able to write something as void Start(some condition that might evaluate to either true or false) {[详细]

2022-12-27 19:53 分类：问答
NSPredicate cause update editing to return NSFetchedResultsChangeDelete not NSFetchedResultsChangeUpdate

I have predicate inside of - (NSFetchedResultsController *)fetchedResultsController in a standard way starting from the CoreDataBook example.[详细]

2022-12-27 13:42 分类：问答
Objective-C: fetchManagedObjectsForEntity problem

I am trying to get value from CoreData entity name Person with predicate and then comparing with new data in dictionary.But it it returns every time 0 .And it creates about 5 person with same name.[详细]

2022-12-26 05:00 分类：问答