@progress/kendo-angular-grid
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Kendo UI Grid for Angular - high performance data grid with paging, filtering, virtualization, CRUD, and more.
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TypeScript
/**-----------------------------------------------------------------------------------------
* Copyright © 2025 Progress Software Corporation. All rights reserved.
* Licensed under commercial license. See LICENSE.md in the project root for more information
*-------------------------------------------------------------------------------------------*/
import { ContextService } from '../../common/provider.service';
import { FilterOperatorBase } from './filter-operator.base';
import * as i0 from "@angular/core";
/**
* Represents the `IsNull` (**Is null**) filter operator. [See example](slug:filtering_grid#toc-using-the-built-in-directive).
* Use this operator to filter out values that are null.
* For more information and examples, see the article on setting [default filter operators](slug:filter_row#toc-default-filter-operator).
*
* @example
* ```html String Filter Cell
* <kendo-grid-column field="ProductName" title="Product Name">
* <ng-template kendoGridFilterCellTemplate let-filter let-column="column">
* <kendo-grid-string-filter-cell
* [column]="column"
* [filter]="filter">
* <kendo-filter-isnull-operator></kendo-filter-isnull-operator>
* </kendo-grid-string-filter-cell>
* </ng-template>
* </kendo-grid-column>
* ```
* ```html Numeric Filter Cell
* <kendo-grid-column field="UnitPrice" title="Price">
* <ng-template kendoGridFilterCellTemplate let-filter let-column="column">
* <kendo-grid-numeric-filter-cell
* [column]="column"
* [filter]="filter">
* <kendo-filter-isnull-operator></kendo-filter-isnull-operator>
* </kendo-grid-numeric-filter-cell>
* </ng-template>
* </kendo-grid-column>
* ```
* ```html Date Filter Cell
* <kendo-grid-column field="FirstOrderedOn">
* <ng-template kendoGridFilterCellTemplate let-filter let-column="column">
* <kendo-grid-date-filter-cell
* [column]="column"
* [filter]="filter">
* <kendo-filter-isnull-operator></kendo-filter-isnull-operator>
* </kendo-grid-date-filter-cell>
* </ng-template>
* </kendo-grid-column>
* ```
* @example
* ```html String Filter Menu
* <kendo-grid-column field="ProductName" title="Product Name">
* <ng-template kendoGridFilterMenuTemplate let-filter let-column="column" let-filterService="filterService">
* <kendo-grid-string-filter-menu
* [column]="column"
* [filter]="filter"
* [filterService]="filterService">
* <kendo-filter-isnull-operator></kendo-filter-isnull-operator>
* </kendo-grid-string-filter-menu>
* </ng-template>
* </kendo-grid-column>
* ```
* ```html Numeric Filter Menu
* <kendo-grid-column field="UnitPrice" title="Price">
* <ng-template kendoGridFilterMenuTemplate let-filter let-column="column" let-filterService="filterService">
* <kendo-grid-numeric-filter-menu
* [column]="column"
* [filter]="filter"
* [filterService]="filterService">
* <kendo-filter-isnull-operator></kendo-filter-isnull-operator>
* </kendo-grid-numeric-filter-menu>
* </ng-template>
* </kendo-grid-column>
* ```
* ```html Date Filter Menu
* <kendo-grid-column field="FirstOrderedOn">
* <ng-template kendoGridFilterMenuTemplate let-filter let-column="column" let-filterService="filterService">
* <kendo-grid-date-filter-menu
* [column]="column"
* [filter]="filter"
* [filterService]="filterService">
* <kendo-filter-isnull-operator></kendo-filter-isnull-operator>
* </kendo-grid-date-filter-menu>
* </ng-template>
* </kendo-grid-column>
* ```
*/
export declare class IsNullFilterOperatorComponent extends FilterOperatorBase {
constructor(ctx: ContextService);
static ɵfac: i0.ɵɵFactoryDeclaration<IsNullFilterOperatorComponent, never>;
static ɵcmp: i0.ɵɵComponentDeclaration<IsNullFilterOperatorComponent, "kendo-filter-isnull-operator", never, {}, {}, never, never, true, never>;
}