Adding Asynchronous Calls to Action Methods With ToDataSourceResultAsync

Environment

Product Version	2020.1.114
Product	Progress® Telerik UI for ASP.NET Core Grid

Description

What is the best approach to using Async/Await in the Telerik UI for ASP.NET Core Grid's action methods?

Solution

Kendo.Mvc.Extensions contains QueryableExtensions which include the ToDatasourceResultAsync method for asynchronous programming. The following contains the action methods from the Grid's Editing Inline Live Demo using ToDataSourceResultAsync:

        public async Task<ActionResult> EditingInline_Read([DataSourceRequest] DataSourceRequest request)
        {
            var products = await productService.Read().ToDataSourceResultAsync(request);

            return Json(products);
        }

        [AcceptVerbs(HttpVerbs.Post)]
        public async Task<ActionResult> EditingInline_Create([DataSourceRequest] DataSourceRequest request, ProductViewModel product)
        {
            if (product != null && ModelState.IsValid)
            {
                productService.Create(product);
            }

            var result = await new[] { product }.ToDataSourceResultAsync(request, ModelState);

            return Json(result);
        }

        [AcceptVerbs(HttpVerbs.Post)]
        public async Task<ActionResult> EditingInline_Update([DataSourceRequest] DataSourceRequest request, ProductViewModel product)
        {
            if (product != null && ModelState.IsValid)
            {
                productService.Update(product);
            }

            var result = await new[] { product }.ToDataSourceResultAsync(request, ModelState);

            return Json(result);
        }

        [AcceptVerbs(HttpVerbs.Post)]
        public async Task<ActionResult> EditingInline_Destroy([DataSourceRequest] DataSourceRequest request, ProductViewModel product)
        {
            if (product != null)
            {
                productService.Destroy(product);
            }

            var result = await new[] { product }.ToDataSourceResultAsync(request, ModelState);

            return Json(result);
        }

The ViewModel definition can be found here:

Grid Core - Inline Editing Demo

More ASP.NET Core Grid Resources

• ASP.NET Core Grid Documentation

• ASP.NET Core Grid Demos

• ASP.NET Core Grid Product Page

• Telerik UI for ASP.NET Core Video Onboarding Course (Free for trial users and license holders)

• Telerik UI for ASP.NET Core Forums

See Also

• ToDataSourceResultAsync - QueryableExtensions
• Inline Editing - Kendo UI Grid Live Demo
• Asynchronous Programming - Microsoft Documentation
• Client-Side API Reference of the Grid for ASP.NET Core
• Server-Side API Reference of the Grid for ASP.NET Core
• Telerik UI for ASP.NET Core Breaking Changes
• Telerik UI for ASP.NET Core Knowledge Base