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ASP.NET Core Grid Filter Multi Checkboxes

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HtmlHelper
TagHelper
Files:
                    filter_multi_checkboxes.cshtml
                
                    Filter_Multi_CheckboxesController.cs
                
                    ProductViewModel.cs
                
                    Filter_Multi_Checkboxes_TagHelper.cshtml

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CLIENT-SIDE API SERVER-SIDE API

Client Operationskendo.syncReady(function(){jQuery("#client").kendoGrid({"navigatable":true,"sortable":true,"columns":[{"title":"Product name","field":"ProductName","filterable":{"messages":{"title":"Show items with value that","buttonTitle":"{0} filter column settings"},"multi":true,"checkAll":false,"search":true},"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":"Unit price","width":"140px","field":"UnitPrice","format":"{0:c}","filterable":{"messages":{"title":"Show items with value that","buttonTitle":"{0} filter column settings"},"multi":true,"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"},{"title":"Units in stock","width":"140px","field":"UnitsInStock","filterable":{"messages":{"title":"Show items with value that","buttonTitle":"{0} filter column settings"},"multi":true},"encoded":true,"editor":"\n\u003cinput data-val=\"true\" data-val-range=\"The field Units in stock must be between 0 and 2147483647.\" data-val-range-max=\"2147483647\" data-val-range-min=\"0\" data-val-required=\"The Units in stock field is required.\" id=\"UnitsInStock\" name=\"UnitsInStock\" style=\"width:100%\" title=\"UnitsInStock\" type=\"text\" value=\"\" /\u003e\u003cscript\u003ekendo.syncReady(function(){jQuery(\"#UnitsInStock\").kendoNumericTextBox({\"decimals\":0,\"format\":\"n0\",\"max\":2147483647,\"min\":-2147483648});});\u003c/script\u003e\u003cspan class=\"field-validation-valid\" data-valmsg-for=\"UnitsInStock\" data-valmsg-replace=\"true\"\u003e\u003c/span\u003e"},{"title":"Discontinued","width":"100px","field":"Discontinued","filterable":{"messages":{"title":"Show items with value that","buttonTitle":"{0} filter column settings"},"multi":true,"checkAll":false},"encoded":true,"editor":"\n\n\u003cinput data-val=\"true\" data-val-required=\"The Discontinued field is required.\" id=\"Discontinued\" name=\"Discontinued\" title=\"Discontinued\" type=\"checkbox\" value=\"true\" /\u003e\u003cinput name=\"Discontinued\" title=\"Discontinued\" type=\"hidden\" value=\"false\" /\u003e\u003cscript\u003ekendo.syncReady(function(){jQuery(\"#Discontinued\").kendoCheckBox({\"checked\":false});});\u003c/script\u003e\u003cspan class=\"field-validation-valid\" data-valmsg-for=\"Discontinued\" 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","buttonTitle":"{0} filter column settings"}},"scrollable":{"height":"550px"},"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/editing_read"},"prefix":"","update":{"url":"/aspnet-core/grid/editing_update"},"create":{"url":"/aspnet-core/grid/editing_create"},"destroy":{"url":"/aspnet-core/grid/editing_destroy"}},"pageSize":20,"page":1,"groupPaging":false,"total":0,"error":error_handler,"schema":{"data":"Data","total":"Total","errors":"Errors","model":{"id":"ProductID","fields":{"ProductID":{"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":null},"QuantityPerUnit":{"type":"string"}}}},"batch":true}});});Server Operationskendo.syncReady(function(){jQuery("#server").kendoGrid({"sortable":true,"columns":[{"title":"First Name","width":"220px","field":"FirstName","filterable":{"messages":{"title":"Show items with value that","buttonTitle":"{0} filter column settings"},"dataSource":{"transport":{"read":{"url":"/aspnet-core/grid/unique","data":{ field: 'FirstName' }}}},"multi":true,"checkAll":false,"search":true},"encoded":true},{"title":"Last Name","width":"220px","field":"LastName","filterable":{"messages":{"title":"Show items with value that","buttonTitle":"{0} filter column settings"},"dataSource":{"transport":{"read":{"url":"/aspnet-core/grid/unique","data":{ field: 'LastName' }}}},"multi":true,"checkAll":false},"encoded":true},{"title":"Country","width":"220px","field":"Country","filterable":{"messages":{"title":"Show items with value that","buttonTitle":"{0} filter column settings"},"dataSource":{"transport":{"read":{"url":"/aspnet-core/grid/unique","data":{ field: 'Country' }}}},"multi":true,"itemTemplate":itemTemplate,"checkAll":false},"encoded":true},{"title":"City","width":"220px","field":"City","filterable":{"messages":{"title":"Show items with value that","buttonTitle":"{0} filter column settings"},"dataSource":[{"City":"Seatle"},{"City":"Tacoma"},{"City":"Kirkland"},{"City":"Redmond"},{"City":"London"}],"multi":true,"checkAll":false},"encoded":true},{"title":"Title","field":"Title","filterable":{"messages":{"title":"Show items with value that","buttonTitle":"{0} filter column settings"},"dataSource":{"transport":{"read":{"url":"/aspnet-core/grid/unique","data":{ field: 'Title' }}}},"multi":true,"checkAll":false},"encoded":true}],"pageable":{"buttonCount":10},"filterable":{"messages":{"title":"Show items with value that","buttonTitle":"{0} filter column settings"}},"scrollable":false,"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/hierarchybinding_employees"},"prefix":""},"pageSize":10,"page":1,"groupPaging":false,"total":0,"serverPaging":true,"serverSorting":true,"serverFiltering":true,"serverGrouping":true,"serverAggregates":true,"filter":[],"schema":{"data":"Data","total":"Total","errors":"Errors","model":{"fields":{"EmployeeID":{"type":"number"},"FirstName":{"type":"string"},"EmployeeName":{"type":"string"},"LastName":{"type":"string"},"Title":{"type":"string"},"Country":{"type":"string"},"City":{"type":"string"},"Address":{"type":"string"},"HomePhone":{"type":"string"},"Notes":{"type":"string"},"ReportsTo":{"type":"number","defaultValue":null}}}}}});});

Description

The Telerik UI for ASP.NET Core Grid supports a multi-checkbox filter functionality, which allows you to filter a Grid column by using checkboxes.

To enable the multi-checkbox filter in the Filter menu of the Data Grid, specify the Filterable(ftb => ftb.Multi(true) setting for the relevant Data Grid columns, as demonstrated in this demo.

In addition, you can customize the Checkbox Filter Menu by combining the filter with an ItemTemplate("itemTemplate") definition, as shown with the Country column in the bottom Grid.

The .Filterable.Search(true); setting renders a search box in the multi-checkbox filter menu so that the data source of the checkboxes can be filtered.

For more information about the filtering capabilities, refer to the official Telerik UI for ASP.NET Core Data Grid product documentation on the available fltering approaches.

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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 Filter Multi Checkboxes

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