predicate

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Serialising predicates over wcf

I have a WCF service that exposes a bunch of methods that return business objects. Under its hood it has a nice repository layer that uses interface methods like this:[详细]

2023-01-28 18:16 分类：问答
compute in prolog

I know in prolog we ask for is that true or false , can we also do compu开发者_Python百科te for example average and how the predicate look like?Of course you can compute the average of a list of numbe[详细]

2023-01-27 09:03 分类：问答
How can I pass a Predicate<T> to the Where() method in Linq to SQL?

I have the following model: +--------+ Folder | +--------+ 1 * +----------++---------+ WorkItem |---------| Project |[详细]

2023-01-25 03:47 分类：问答
EntityFramework Casting issues

I am building my query using PredicateBuilder from LinqKit. it is great and does exactly what i am looking for.[详细]

2023-01-22 01:52 分类：问答
How to chain method overloads that accept Func<> delegates ? (C#)

I have a method with two overloads, as follows: bool Evaluate(Func<bool> condition) { // Some logic[详细]

2023-01-21 17:39 分类：问答
Dynamic LINQ help for sorting problem

I have a simple IEnumerable collection of Order objects. I want to write a generic sort function that accepts the collection and a sortkey that corresponds to a property on an Order object. I don\'t w[详细]

2023-01-20 21:21 分类：问答
Dynamically creating an Expression calling method EntityFunctions.DiffDays

I am trying to create the following Where clause expression dynamically: context.Cars. Where(c => EntityFunctions.DiffDays(c.Created, c.Created) == null).[详细]

2023-01-20 09:41 分类：问答
Expression.Call - Calling linq extension: FirstOrDefault, Where

I am trying to create the fo开发者_开发问答llowing dynamically, however I am having problems calling the extension method FirstOrDefault:[详细]

2023-01-18 23:19 分类：问答
Declaring Func<in T, out Result> dynamically

Consider this: var propertyinfo = typeof(Customer).GetProperty(sortExpressionStr); Type orderType = propertyinfo.PropertyType;[详细]

2023-01-16 17:09 分类：问答
Need help trying to EagerLoad some data in EntityFramework

I\'m trying to do some eager loading on an EF Entity. so, if the entity is called Orders .. then I guess i would do the following...[详细]

2023-01-16 04:52 分类：问答