predicate

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Combine XPATH predicate with position

I have a collection of div elements that have the class media-gallery-item. I would like to select element number x.[详细]

2023-02-10 00:05 分类：问答
What is wrong with this usage of std::find_if?

I get the following error when compiling the std::find_if function: error C2451: conditional expression of type \'overloaded-function\' is illegal[详细]

2023-02-08 01:53 分类：问答
sort predicate to have nodes sorted in Depth First Search order

I have a list of nodes, where each of the nodes belong to one or multiple trees.(they do not necessarily share a common ancestor)[详细]

2023-02-07 01:14 分类：问答
Do.. While.. with Exists predicates. Access to modified closure?

string reference; do { reference = GenerateNewReference(); } while (currentItems.Ex开发者_高级运维ists(i=>i.Reference.Equals(reference));[详细]

2023-02-06 17:06 分类：问答
Default value on generic predicate as argument

First time question for me :) I need some way to define a default predicate using a generic on the format[详细]

2023-02-06 16:02 分类：问答
Setting predicate to search in Core Data

I need to perform search Core Data entities in my app for iPhone. In my Core Data I have an entity \'myEntity\', that has two properties \'stringOne\' and \'stringTwo\'; both defined as NSString.[详细]

2023-02-05 17:01 分类：问答
Is there a way for std::map to "edit" values like a predicate for the key?

I am wondering if it is possible to create something like a predicate for a std::map for all of its values so I don\'t have to edit the values before I insert them into the map.[详细]

2023-02-01 17:32 分类：问答
I'm trying to get a count of records from a related entity that match a criteria

I have an entity matches which has a related to-many entity sets. I want to get a count of how many sets have the attribute \'set_finished\' set to YES for a particular match. I\'m trying to do this w[详细]

2023-01-31 23:17 分类：问答
Convert a collection of objects with a string property to an enumeration of those strings using LINQ

I have an IEnumerable object where Foo has a string property called \'Name\'.Is there an easy LINQ statement that will let me return a collection of strings from that enumeration for those names?[详细]

2023-01-30 08:59 分类：问答
Filtering against properties of objects in an array with a predicate

I have an array of objects that I\'d like to filter using a predicate, but I\'ve not been able to figure out the syntax (or whether it\'s impossible).[详细]

2023-01-29 15:05 分类：问答