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Dynamic LINQ - Knowledge Base (KB)

8 results in tag: linq-expressions

Is There A.NET 4 Version Of Dynamic LINQ?

I'm looking to use LINQ for some searching routines and wanted to have some dynamic where clauses. So, for example, if a user wants to search by city or search by state, I would have a dynamic LINQ Where<> call instead of creating two strongly typed LINQ...
c# dynamic-linq linq linq-expressions
asked by David Hoerster

Dynamic expression parsing in localized environment

So I'm trying to parse a simple arithmetic dynamic expression using System.Linq.Dynamic. This runs fine when executed in an English environment where the CurrentCulture is English-US (and the decimal separator is a plain "." dot). Trying to run the code i...
dynamic-linq lambda linq-expressions localization
asked by alrotem

How to get value from string expression

I have a string stored in my db:..."Users.ElementAt(1).LastName" ...I then have an object like so:... MyClass myclass = new MyClass () { Users = new List<User>() { new User() { ...
c# dynamic-linq linq linq-expressions reflection
asked by Steve Stokes

Dynamic Linq Library can’t handling duplicate alias column names

I am trying to collect the data from database by using Dynamic Linq Library ...NeGet.... When I loop through it showing this error ‘The item with identity 'FirstName' already exists in the metadata collection’...Seems like Dynamic Linq Library ...NuGe...
dynamic-linq dynamic-queries expression-trees linq linq-expressions
asked by sridharnetha

Dynamic Linq Library can't handling one on many relationship in select clause

I would like to get records from the database using Dynamic Linq Library ...NuGet.... How can I write query for select parent records along with list of child records. For example there is One-on-Many relationship between Question and Answers table. Quest...
asp.net dynamic-linq linq linq-expressions predicatebuilder
asked by sridharnetha

Linq Dynamic query and include non related entity

I have a scenario where I have 3 Entities...class entityA { public Guid Id { get; set; } public string NameA { get; set; } } class entityB { public Guid Id { get; set; } public string NameB { get; set; } public entityA EntityA { get;...
c# dynamic-linq entity-framework linq linq-expressions
asked by Developerzzz

Text query parsing in Sprache

I'm trying to write some code to match strings based on a pattern:...pattern: "dog and (cat or goat)" ...test string: "doggoat" result: true...test string: "dogfrog" result: false...I'm trying to write a parser using Sprache, with most of the logic provid...
c# dynamic-linq expression-trees linq-expressions sprache
asked by Alan Sage

How can I add a specific dictionary entry to a Linq Expression?

I'm making use of the ...dynamic-linq-query-builder... library and am attempting to generate an executable Linq query from a JSON representation of the query. I don't believe that this library supports Dictionaries as it stands, so I am looking to add th...
c# dynamic-linq linq linq-expressions
asked by Bob

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