# System.Linq.Dynamic.Core
**Repository Path**: lztkdr/System.Linq.Dynamic.Core
## Basic Information
- **Project Name**: System.Linq.Dynamic.Core
- **Description**: 可动态解析Lambda表达式的一个优秀类库。
- **Primary Language**: C#
- **License**: Apache-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No
## Statistics
- **Stars**: 0
- **Forks**: 0
- **Created**: 2023-05-18
- **Last Updated**: 2023-05-18
## Categories & Tags
**Categories**: Uncategorized
**Tags**: None
## README
### Library Powered By
This library is powered by [Entity Framework Extensions](https://entityframework-extensions.net/?z=github&y=system.linq.dynamic.core)
---
# System.Linq.Dynamic.Core
This is a **.NET Core / Standard port** of the Microsoft assembly for the .Net 4.0 Dynamic language functionality.
## Overview
With this library it's possible to write Dynamic LINQ queries (string based) on an `IQueryable`:
``` c#
var query = db.Customers
.Where("City == @0 and Orders.Count >= @1", "London", 10)
.OrderBy("CompanyName")
.Select("new(CompanyName as Name, Phone)");
```
Interpolated strings are supported on .NET 4.6(and above), .NET Core 2.1(and above), .NET Standard 1.3(and above) and UAP 10.0(and above).
For example:
``` csharp
string cityName = "London";
int c = 10;
db.Customers.WhereInterpolated($"City == {cityName} and Orders.Count >= {c}");
```
## :exclamation: Breaking changes
### v1.3.0
A breaking change is introduced in version 1.3.0 which is related to calling methods on classes.
Due to security reasons, it's now only allowed to call methods on the standard predefined classes like (`bool`, `int`, `string` ...).
If you want to call a method on an own custom class, annotate that class with the [DynamicLinqType](https://dynamic-linq.net/advanced-extending#dynamiclinqtype-attribute).
Example:
``` c#
[DynamicLinqType]
public class MyCustomClass
{
public int GetAge(int x) => x;
}
```
If it's not possible to add that attribute, you need to implement a custom [CustomTypeProvider](https://dynamic-linq.net/advanced-configuration#customtypeprovider) and set this to the `ParsingConfig` and provide that config to the dynamic call.
## Useful links
- [Website](https://dynamic-linq.net)
- [Documentation](https://dynamic-linq.net/overview)
- [Online examples](https://dynamic-linq.net/online-examples)
- [NuGet](https://www.nuget.org/packages/System.Linq.Dynamic.Core)
## Info
| | |
| --- | --- |
| ***Project*** | |
| **Chat** | [](https://gitter.im/system-linq-dynamic-core/Lobby) |
| **Issues** | [](https://github.com/StefH/System.Linq.Dynamic.Core/issues) |
| | |
| ***Quality*** | |
| **CI Workflow** |  |
| |
| ***NuGet*** | |
| **System.Linq.Dynamic.Core** | [](https://www.nuget.org/packages/System.Linq.Dynamic.Core) |
| **EntityFramework.DynamicLinq** | [](https://www.nuget.org/packages/EntityFramework.DynamicLinq) |
| **Microsoft.EntityFrameworkCore.DynamicLinq** | [](https://www.nuget.org/packages/Microsoft.EntityFrameworkCore.DynamicLinq) |
| **Z.EntityFramework.Classic.DynamicLinq** | [](https://www.nuget.org/packages/Z.EntityFramework.Classic.DynamicLinq) |
## Development Details
### Frameworks
The following frameworks are supported:
- net35, net40, net45, net46 and up
- netstandard1.3, netstandard2.0 and netstandard2.1
- netcoreapp3.1, net5.0, net6.0 and net7.0
- uap10.0
### Fork details
This fork takes the basic library to a new level. Contains XML Documentation and examples on how to use it. Also adds unit testing to help ensure that it works properly.
Some background:
I forked from https://github.com/NArnott/System.Linq.Dynamic and added some more functionality there.
My fork is still visible on github [https://github.com/StefH/System.Linq.Dynamic], however I decided to start a new project + nuget to avoid confusion and create the project according to the new VS2017 + .NET Core rules / standards.
However, currently there are multiple nuget packages and projects available:
| Project | NuGet | Author | Comment |
| ------- | ----- | ------ | ------- |
| [kahanu/System.Linq.Dynamic][2a] | [System.Linq.Dynamic][2b] | @kahanu | - |
| [kavun/System.Linq.Dynamic.3.5][3a] | [System.Linq.Dynamic.3.5/][3b] | @kavun | only 3.5 and VB.NET |
| [NArnott/System.Linq.Dynamic][4a] | [System.Linq.Dynamic.Library][4b] | @NArnott | removed from github + nuget ? |
| [dynamiclinq.codeplex][5a] | - | dialectsoftware | - |
| [dynamic-linq][6a] | - | scottgu | - |
[2a]: https://github.com/kahanu/System.Linq.Dynamic
[2b]: https://www.nuget.org/packages/System.Linq.Dynamic
[3a]: https://github.com/kavun/System.Linq.Dynamic.3.5
[3b]: https://www.nuget.org/packages/System.Linq.Dynamic.3.5/
[4a]: https://github.com/NArnott/System.Linq.Dynamic
[4b]: https://www.nuget.org/packages/System.Linq.Dynamic.Library
[5a]: https://dynamiclinq.codeplex.com/
[6a]: http://weblogs.asp.net/scottgu/dynamic-linq-part-1-using-the-linq-dynamic-query-library
[doc-api]: http://zzzprojects.github.io/System.Linq.Dynamic.Core
[doc-wiki]: https://github.com/zzzprojects/System.Linq.Dynamic.Core/wiki/Dynamic-Expressions
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We NEED your help. Last year alone, we spent over **3000 hours** maintaining all our open source libraries.
Contributions allow us to spend more of our time on: Bug Fix, Development, Documentation, and Support.
### How much should I contribute?
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If everyone could contribute a tiny amount, it would help us make the .NET community a better place to code!
Another great free way to contribute is **spreading the word** about the library.
A **HUGE THANKS** for your help!
## More Projects
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