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ASP.NET Core Grid ForeignKey Column Binding

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HtmlHelper
TagHelper
Files:
                    foreignkeycolumnbinding.cshtml
                
                    ForeignKeyColumnControllerBinding.cs
                
                    ProductViewModel.cs
                
                    CategoryViewModel.cs
                
                    ForeignkeycolumnBinding_TagHelper.cshtml

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CLIENT-SIDE API HTML HELPER API

kendo.syncReady(function(){jQuery("#grid").kendoGrid({"groupable":{"enabled":true},"columns":[{"title":"Product name","field":"ProductName","filterable":{"messages":{"title":"Show items with value that"},"checkAll":false},"encoded":true,"editor":"\r\n\u003cinput data-val=\"true\" data-val-required=\"The Product name field is required.\" id=\"ProductName\" name=\"ProductName\" title=\"ProductName\" type=\"text\" value=\"\" /\u003e\u003cscript\u003ekendo.syncReady(function(){jQuery(\"#ProductName\").kendoTextBox({});});\u003c/script\u003e \u003cspan class=\"field-validation-valid\" data-valmsg-for=\"ProductName\" data-valmsg-replace=\"true\"\u003e\u003c/span\u003e"},{"title":"Category","width":"200px","field":"CategoryID","filterable":{"messages":{"title":"Show items with value that"},"checkAll":false},"encoded":true,"editor":null,"dataSource":{"transport":{"read":{"url":"/aspnet-core/grid/categories"}}},"dataValueField":"CategoryID","dataTextField":"CategoryName"},{"title":"Unit price","width":"200px","field":"UnitPrice","format":"{0:C}","filterable":{"messages":{"title":"Show items with value that"},"checkAll":false},"encoded":true,"editor":"\n\n\u003cinput data-val=\"true\" data-val-number=\"The field Unit price must be a number.\" data-val-range=\"The field Unit price must be between 0 and 2147483647.\" data-val-range-max=\"2147483647\" data-val-range-min=\"0\" data-val-required=\"The Unit price field is required.\" id=\"UnitPrice\" name=\"UnitPrice\" style=\"width:100%\" title=\"UnitPrice\" type=\"text\" value=\"\" /\u003e\u003cscript\u003ekendo.syncReady(function(){jQuery(\"#UnitPrice\").kendoNumericTextBox({\"format\":\"c\",\"max\":2147483647,\"min\":0});});\u003c/script\u003e\n\n\n\u003cspan class=\"field-validation-valid\" data-valmsg-for=\"UnitPrice\" data-valmsg-replace=\"true\"\u003e\u003c/span\u003e"},{"width":"150px","command":[{"text":"Delete","name":"destroy"}]}],"pageable":{"buttonCount":10},"filterable":{"messages":{"title":"Show items with value that"}},"scrollable":{"height":"400px"},"editable":{"confirmation":"Are you sure you want to delete this record?","confirmDelete":"Delete","cancelDelete":"Cancel","mode":"incell","create":true,"update":true,"destroy":true,"template":null},"toolbar":[{"text":"Add new record","name":"create"},{"text":"Save changes","name":"save"},{"text":"Cancel changes","name":"cancel"}],"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/grid/foreignkeycolumn_read"},"prefix":"","update":{"url":"/aspnet-core/grid/foreignkeycolumn_update"},"create":{"url":"/aspnet-core/grid/foreignkeycolumn_create"},"destroy":{"url":"/aspnet-core/grid/foreignkeycolumn_destroy"}},"pageSize":20,"page":1,"groupPaging":false,"total":0,"error":errorHandler,"schema":{"data":"Data","total":"Total","errors":"Errors","model":{"id":"ProductID","fields":{"ProductID":{"editable":false,"type":"number"},"ProductName":{"type":"string"},"UnitPrice":{"type":"number"},"UnitsInStock":{"type":"number"},"Discontinued":{"type":"boolean"},"LastSupply":{"type":"date"},"UnitsOnOrder":{"type":"number"},"Category":{"type":"object"},"CategoryID":{"type":"number","defaultValue":1},"QuantityPerUnit":{"type":"string"}}}},"batch":true}});});

Description

The ForeignKey column functionality of the Telerik UI for ASP.NET Core Grid component is primarily used for matching the value of a bound property to a desired text field from a collection that is external for the Data Grid. The ForeignKey column approach follows the convention of the SQL ForeignKey functionality that is used for linking two tables based on a foreign key.

This demo shows how to implement a foreign key column which fetches its values from a DataSource in the ASP.NET Core Data Grid which hosts the Telerik UI for ASP.NET Core DropDownList component as an editor for modifying the data.

For more information about the ForeignKey column capabilities, refer to the official Telerik UI for ASP.NET Core Data Grid product documentation on the available column settings.

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This Grid 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 Grid ForeignKey Column Binding

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ASP.NET Core Grid ForeignKey Column Binding

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