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ASP.NET Core TreeList Multi-Column Headers

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HtmlHelper
TagHelper
Files:
                    multicolumnheaders.cshtml
                
                    EmployeeDirectoryModel.cs
                
                    Multicolumnheaders_TagHelper.cshtml

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CLIENT-SIDE API HTML HELPER API

kendo.syncReady(function(){jQuery("#treelist").kendoTreeList({"columns":[{"field":"FirstName","title":"First name","width":"180px","filterable":true},{"field":"Position","filterable":true},{"title":"Personal Info","columns":[{"field":"LastName","title":"Last name","width":"120px","filterable":true},{"title":"Location","columns":[{"field":"City","width":"140px","filterable":true},{"field":"Country","width":"140px","filterable":true}],"filterable":true},{"field":"Phone","filterable":true}],"filterable":true}],"resizable":true,"reorderable":true,"columnMenu":true,"height":540,"sortable":true,"dataSource":{"type":(function(){if(kendo.data.transports['aspnetmvc-ajax']){return 'aspnetmvc-ajax';} else{throw new Error('The kendo.aspnetmvc.min.js script is not included.');}})(),"transport":{"read":{"url":"/aspnet-core/employeedirectory/all"},"prefix":""},"schema":{"data":"Data","total":"Total","errors":"Errors","model":{"id":"EmployeeId","fields":{"EmployeeId":{"nullable":false,"type":"number"},"FirstName":{"nullable":false,"type":"string"},"LastName":{"nullable":false,"type":"string"},"ReportsTo":{"nullable":true,"type":"number","defaultValue":null},"Address":{"nullable":false,"type":"string"},"City":{"nullable":false,"type":"string"},"Country":{"nullable":false,"type":"string"},"Phone":{"nullable":false,"type":"string"},"Extension":{"nullable":false,"type":"number","defaultValue":null},"Position":{"nullable":false,"type":"string"},"BirthDate":{"nullable":false,"type":"date","defaultValue":null},"hasChildren":{"nullable":false,"type":"boolean"},"HireDate":{"nullable":false,"type":"date","defaultValue":null},"CountryFlag":{"nullable":false,"type":"string"}},"parentId":"ReportsTo","expanded":true}}}});});

Description

The Telerik for ASP.NET Core TreeList component supports a multi-column header feature by allowing you to specify column groups which incorporate inner-column structures. In addition, operations like sorting and filtering are supported on each column level, regardless of the chosen multi-header pattern.

This demo shows the multi-column header functionality for the Personal Info and Location columns which have nested columns, defined through the Columns > Group > Columns schema.

Additional Apps

This TreeList example is part of unique collection of hundreds of ASP.NET Core demos, with which you can see all Telerik ASP.NET Core components and their features in action. View the source code of the demos from the library or directly adapt, and edit them and their theme appearance in Telerik REPL for ASP.NET Core or ThemeBuilder.

ASP.NET Core TreeList Multi-Column Headers

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