KendoNET.DynamicLinq 3.1.2

dotnet add package KendoNET.DynamicLinq --version 3.1.2
NuGet\Install-Package KendoNET.DynamicLinq -Version 3.1.2
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="KendoNET.DynamicLinq" Version="3.1.2" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add KendoNET.DynamicLinq --version 3.1.2
#r "nuget: KendoNET.DynamicLinq, 3.1.2"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install KendoNET.DynamicLinq as a Cake Addin
#addin nuget:?package=KendoNET.DynamicLinq&version=3.1.2

// Install KendoNET.DynamicLinq as a Cake Tool
#tool nuget:?package=KendoNET.DynamicLinq&version=3.1.2

KendoNET.DynamicLinq

Description

KendoNET.DynamicLinq implements server paging, filtering, sorting, grouping, and aggregating to Kendo UI via Dynamic Linq for .Net Core App(1.x ~ 3.x).

Prerequisites

.Net Core 1 ~ 2

  • None

.Net Core 3

  • You must add custom ObjectToInferredTypesConverter to your JsonSerializerOptions since System.Text.Json didn't deserialize inferred type to object properties now, see the sample code and reference.

Usage

  1. Add the KendoNET.DynamicLinq NuGet package to your project.
  2. Configure your Kendo DataSource to send its options as JSON.
parameterMap: function(options, type) {
    return JSON.stringify(options);
}
  1. Configure the schema of the dataSource.
schema: {
    data: "Data",
    total: "Total",
    aggregates: "Aggregates",
    groups: "Groups",
    errors: "Errors"
}
  1. The completed code like below.
..... Other kendo grid code .....

dataSource: {
    schema:
    {
        data: "Data",
        total: "Total",
        aggregates: "Aggregates",
        groups: "Groups",
        errors: "Errors",
        ...
    },
    transport: {
        read: {
            url: 'your read url',
            dataType: 'json',
            contentType: 'application/json; charset=utf-8',
            type: 'POST'
        },
        create: {
            url: 'your create url',
            dataType: "json",
            contentType: 'application/json; charset=utf-8',
            type: 'POST'
        },
        parameterMap: function (data, operation) {
            return JSON.stringify(data);
        }
    },
    error: function(e) {
        console.log(e.errors); // Your error information
        e.sender.cancelChanges();
    },
    pageSize: 20,
    serverPaging: true,
    serverFiltering: true,
    serverSorting: true,
    ...
}

..... Other kendo grid code .....
  1. Import the KendoNET.DynamicLinq namespace.
  2. Use the ToDataSourceResult extension method to apply paging, sorting, filtering, grouping and aggregating.
using KendoNET.DynamicLinq

[WebMethod]
public static DataSourceResult Products(int take, int skip, IEnumerable<Sort> sort, Filter filter, IEnumerable<Aggregator> aggregates, IEnumerable<Group> groups)
{
    using (var northwind = new Northwind())
    {
        return northwind.Products
               .OrderBy(p => p.ProductID) // EF requires ordering for paging
               .Select(p => new ProductViewModel // Use a view model to avoid serializing internal Entity Framework properties as JSON
               {
                   ProductID = p.ProductID,
                   ProductName = p.ProductName,
                   UnitPrice = p.UnitPrice,
                   UnitsInStock = p.UnitsInStock,
                   Discontinued = p.Discontinued
               })
               .ToDataSourceResult(take, skip, sort, filter, aggregates, groups);
    }
}

or from Kendo UI request

using KendoNET.DynamicLinq

[HttpPost]
public IActionResult Products([FromBody] DataSourceRequest requestModel)
{
    using (var northwind = new Northwind())
    {
        return northwind.Products
               .Select(p => new ProductViewModel // Use a view model to avoid serializing internal Entity Framework properties as JSON
               {
                   ProductID = p.ProductID,
                   ProductName = p.ProductName,
                   UnitPrice = p.UnitPrice,
                   UnitsInStock = p.UnitsInStock,
                   Discontinued = p.Discontinued
               })
               .ToDataSourceResult(requestModel.Take, requestModel.Skip, requestModel.Sort, requestModel.Filter, requestModel.Aggregate, requestModel.Group);
    }
}

Known Issues

When server-side filterable options are enabled and apply a query with filter condition that contains DateTime type column, then EntityFramework Core would throw an exception System.Data.SqlClient.SqlException (0x80131904): Conversion failed when converting date and/or time from character string. The error is caused by a known issue in some old EntityFramework Core versions. The workaround is adding datetime value to the related column in DbContext. e.g.

public class MyContext : DbContext
{
    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        ..........

        modelBuilder.Entity<Member>().Property(x => x.UpdateTime).HasColumnType("datetime");

        ..........
    }
}
Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp1.0 was computed.  netcoreapp1.1 was computed.  netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard1.6 is compatible.  netstandard2.0 is compatible.  netstandard2.1 is compatible. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen30 was computed.  tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (1)

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Version Downloads Last updated
3.1.2 37,066 7/13/2022

1. Rename this repository.

     Full changelog: https://github.com/linmasaki/KendoNET.DynamicLinq/blob/master/CHANGELOG.md