This article explains how to add the Kendo UI TypeScript definitions in order to have full intellisense for controls from the UI for ASP.NET AJAX suite that use Kendo UI widgets.
If you have a license for the Kendo UI distribution, you can find the kendo.all.d.ts file in the typescript folder, inside the downloaded package.Otherwise, you can get the file by downloading the trial version — Try Kendo UI.
You can read more about the Kendo TypeScript definitions in the Kendo UI TypeScript Support help article.
By following these steps you will have full intellisense for the exposed Kendo widgets:
Make sure that the instructions from the Add TypeScript Definitions for the Telerik® UI for ASP.NET AJAX Suite article are followed and that the Microsoft.Ajax.d.ts and Telerik.Web.UI.d.ts are added properly;
Put the kendo.all.d.ts file in the same folder—e.g., Definitions.
You can learn how to get a reference to the integrated Kendo widgets and use them in TypeScript code in the Use TypeScript for Controls Using Kendo UI help article.