My issue is to Find exact one Calendar object from a List Of(Calendar) by passing a particular date. I got to know about the predicate but not sure about passing parameter to it. colorcode is List Of (Calendar) and calendar class has a property called DtmDate with which I want to compare and return the desired object. Dim a As Calenda...
Hi, i have a problem with a xpath-statement. Basically, the problem can be explained at the following code: <xsl:for-each select="/b1im:B1IMessage/b1im:Header/b1im:Z/SortInbound/group"> <!-- Check if entry from duplicate table is found for the current AccountingEntry --> <xsl:variable name="exter...
Hi Guys, I have an interface contract that looks like this: ICollection<FooBar> FindByPredicate(Expression<Func<FooBar,bool>> predicate); ICollection<Foo> FindByPredicate(Expression<Func<Foo,bool>> predicate); ICollection<Bar> FindByPredicate(Expression<Func<Bar,bool>> predicate); Foo and Bar are concrete classes which inherit from t...
in RDF a statement is represented with S,P and O; In OWL the owl:ObjectProperty represents the predicate logic. (S) (P) (O) I like dog <owl:Class rdf:about="Person" /> <owl:NamedIndividual rdf:about="I"> <rdf:type rdf:resource="Person"/> <like rdf:resource="Dog"/> </owl:NamedIndividual> <owl:Class rdf:about="Pet" /> <ow...
Hi everybody! I have an array with about 6000 entries, everyone with a date, in the form of 4 integers (year, month, day, hour). I want to find all the entries with a given day, and i'm doing like this: NSCalendar *gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; unsigned unitFl...
Hi folks, 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... _someContext.Orders.Include("Whatever") .... But the problem is, I have a method like the following ... public IQueryable<Order> Find(Expression<Func<Order, bool>> predicate) { return Curr...
Consider this: var propertyinfo = typeof(Customer).GetProperty(sortExpressionStr); Type orderType = propertyinfo.PropertyType; now i want to declare Func<int,orderType> i know its not possible directly since ordertype is at runtime but is there is any workarround ? this is exactly what i want to do : var propertyinfo = t...
I'm using the code below to Fetch a queried set of all rows using CoreData matching the search criteria: itemType = 1. But what I need to do is to Fetch a specific number of Random rows from the data instead. For example, instead of retrieving all 100 rows of data in which the column name dataType = 1, I need to get 25 rows randomly in w...
I'm using the code below to populate an array from my ManagedObjectContext, but what I would like to do is to fetch only the unique ID numbers of each row matching my query (itemType = 1) and populate the fetchResults array with only these unique ID numbers. Is that possible? Any help is appreciated. lq NSFetchRequest *request = [[NSFe...
I am trying to create the following dynamically, however I am having problems calling the extension method "FirstOrDefault" using(var context = new Entities()) { var list = context.Engines.Include("Cars").Select(e => e.Cars.FirstOrDefault()).ToList(); } I have the following Expression parameter = Expression.P...
I'm having trouble figuring out how to select data using a compound XPath query so that I can essentially find the 5th column of row in my data. Here is my example XML: <sample> <OBX> <field position="1">1</field> <field position="2">My Value</field> </OBX> <OBX> <field position="1">2</field> <field position="2">My other...
I am trying to create the following Where clause expression dynamically: context.Cars. Where(c => EntityFunctions.DiffDays(c.Created, c.Created) == null). ToList() This is the code I am using to create the expression: var parameter = Expression.Parameter(typeof(Car), "c"); var property = Expression.Property(parameter, "Created"); var...
I have a method with two overloads, as follows: bool Evaluate(Func<bool> condition) { // Some logic return condition.Invoke(); } bool Evaluate<T>(Func<T, bool> condition, T value) { // Same logic as the first method overload return condition.Invoke(value); } Since both method overloads contain largely identical logi...
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 want to hardcode the sort instructions for every property. How can I build a dynamic LINQ string that automatically generates the LINQ for me...
I am building my query using PredicateBuilder from LinqKit. it is great and does exactly what i am looking for. To make my code more reusable (tables and views) i created a generic predicate builder class: public class LocalPredicateBuilder<T> where T : IResort ... var predicate = PredicateBuilder.True<T>( which exposes BuildPre...