LogicBuilder.Kendo.ExpressionExtensions 8.0.0

LogicBuilder.Kendo.ExpressionExtensions

A library that extends Telerik's Kendo UI DataSourceRequest functionality with powerful LINQ expression building capabilities for ASP.NET Core applications.

Overview

LogicBuilder.Kendo.ExpressionExtensions provides extension methods for creating IQueryable expressions from Telerik's DataSourceRequest class, enabling seamless integration between Kendo UI components and Entity Framework Core repositories. While this library depends on Telerik.UI.for.AspNet.Core, it has not been created or maintained by Telerik/Progress.

Key Features

• DataSource Operations: Transform Kendo UI grid requests into Entity Framework queries with support for:

  • Filtering
  • Sorting
  • Paging
  • Grouping
  • Aggregations (Count, Sum, Min, Max, Average)

• Data Retrieval Methods:

  • GetData<TModel, TData>() - Retrieve paged and filtered data with full DataSourceResult support
  • GetSingle<TModel, TData>() - Fetch a single entity matching filter criteria
  • GetDynamicSelect<TModel, TData>() - Execute dynamic projections with custom select expressions
  • Example implementations can be found in the Helpers class from the test project.

• Advanced Query Capabilities:

  • Select/expand definitions for loading related entities
  • Filtered expansions for child collections
  • Sorted and paginated child collections
  • Dynamic select projections

Getting Started

Prerequisites

First, implement the context, store, repository, and service registrations as described in LogicBuilder.EntityFrameworkCore.SqlServer.

Basic Usage

// Use the DataSourceRequest helper to get the DataSourceResult

ISchoolRepository repository = serviceProvider.GetRequiredService<ISchoolRepository>();
DataSourceResult result = await request.GetData<StudentModel, Student>(repository);

public static async Task<DataSourceResult> GetData<TModel, TData>(this DataRequest request, IContextRepository contextRepository) where TModel : BaseModelClass where TData : BaseDataClass 
{ 
	return await request.Options.CreateDataSourceRequest().GetDataSourceResult<TModel, TData> ( contextRepository, request.SelectExpandDefinition ); 
}

Examples

For comprehensive examples of all features, refer to the data request tests.

Use Cases

• Building ASP.NET Core APIs that serve Kendo UI grids
• Implementing server-side data operations for large datasets
• Creating flexible query APIs with dynamic filtering and sorting
• Supporting complex data models with related entities

Related Projects

• LogicBuilder.EntityFrameworkCore.SqlServer