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WjFlexGridFilter Class

Angular 2 component for the wijmo.grid.filter.FlexGridFilter control.

The wj-flex-grid-filter component must be contained in a wijmo.angular2.grid.WjFlexGrid component.

Use the wj-flex-grid-filter component to add FlexGridFilter controls to your Angular 2 applications. For details about Angular 2 markup syntax, see Angular 2 Markup.

The WjFlexGridFilter component is derived from the FlexGridFilter control and inherits all its properties, events and methods.

Hierarchy

Properties

activeEditor

activeEditor: ColumnFilterEditor

Gets the active ColumnFilterEditor.

This property allows you to customize the filter editor when handling the filterChanging event. It returns null when no filters are being edited.

defaultFilterType

defaultFilterType: FilterType

Gets or sets the default filter type to use.

This value can be overridden in filters for specific columns. For example, the code below creates a filter that filters by conditions on all columns except the "ByValue" column:

var f = new wijmo.grid.filter.FlexGridFilter(flex);
f.defaultFilterType = wijmo.grid.filter.FilterType.Condition;
var col = flex.columns.getColumn('ByValue'),
    cf = f.getColumnFilter(col);
cf.filterType = wijmo.grid.filter.FilterType.Value;

The default value for this property is FilterType.Both.

exclusiveValueSearch

exclusiveValueSearch: boolean

Gets or sets a value that determines whether the filter should include only values selected by the ValueFilter.filterText property.

This property is set to true by default, which matches Excel's behavior.

Set it to false to disable this behavior, so searching only affects which items are displayed on the list and not which items are included in the filter.

filterAppliedNg

filterAppliedNg: EventEmitter<any>

Angular (EventEmitter) version of the Wijmo filterApplied event for programmatic access. Use this event name if you want to subscribe to the Angular version of the event in code. In template bindings use the conventional filterApplied Wijmo event name.

filterChangedNg

filterChangedNg: EventEmitter<any>

Angular (EventEmitter) version of the Wijmo filterChanged event for programmatic access. Use this event name if you want to subscribe to the Angular version of the event in code. In template bindings use the conventional filterChanged Wijmo event name.

filterChangingNg

filterChangingNg: EventEmitter<any>

Angular (EventEmitter) version of the Wijmo filterChanging event for programmatic access. Use this event name if you want to subscribe to the Angular version of the event in code. In template bindings use the conventional filterChanging Wijmo event name.

filterColumns

filterColumns: string[]

Gets or sets an array containing the names or bindings of the columns that have filters.

Setting this property to null or to an empty array adds filters to all columns.

filterDefinition

filterDefinition: string

Gets or sets the current filter definition as a JSON string.

The filterDefinition includes information about all currently active column filters. It does not include data maps because data maps are not serializable.

grid

grid: FlexGrid

Gets a reference to the FlexGrid that owns this filter.

initialized

initialized: EventEmitter<any>

This event is triggered after the component has been initialized by Angular, that is all bound properties have been assigned and child components (if any) have been initialized.

isInitialized

isInitialized: boolean

Indicates whether the component has been initialized by Angular. Changes its value from false to true right before triggering the initialized event.

showFilterIcons

showFilterIcons: boolean

Gets or sets a value indicating whether the FlexGridFilter adds filter editing buttons to the grid's column headers.

If you set this property to false, then you are responsible for providing a way for users to edit, clear, and apply the filters.

The default value for this property is true.

showSortButtons

showSortButtons: boolean

Gets or sets a value indicating whether the filter editor should include sort buttons.

By default, the editor shows sort buttons like Excel does. But since users can sort columns by clicking their headers, sort buttons in the filter editor may not be desirable in some circumstances.

The default value for this property is true.

wjProperty

wjProperty: string

Gets or sets a name of a property that this component is assigned to. Default value is ''.

Methods

apply

  • apply(): void
  • Applies the current column filters to the grid.

    Returns void

clear

  • clear(): void

closeEditor

  • closeEditor(): void

created

  • created(): void
  • If you create a custom component inherited from a Wijmo component, you can override this method and perform necessary initializations that you usually do in a class constructor. This method is called in the last line of a Wijmo component constructor and allows you to not declare your custom component's constructor at all, thus preventing you from a necessity to maintain constructor parameters and keep them in synch with Wijmo component's constructor parameters.

    Returns void

editColumnFilter

  • editColumnFilter(col: any, ht?: HitTestInfo, refElem?: HTMLElement): void
  • Shows the filter editor for the given grid column.

    Parameters

    • col: any

      The Column that contains the filter to edit.

    • Optional ht: HitTestInfo

      A wijmo.grid.HitTestInfo object containing the range of the cell that triggered the filter display.

    • Optional refElem: HTMLElement

      An HTMLElement to use as a reference for positioning the editor.

    Returns void

getColumnFilter

  • Gets the filter for the given column.

    Parameters

    • col: any

      The Column that the filter applies to (or column name or index).

    • Optional create: boolean

      Whether to create the filter if it does not exist.

    Returns ColumnFilter

onFilterApplied

onFilterChanged

onFilterChanging

Events

filterApplied

filterApplied: Event

Occurs after the filter is applied.

filterChanged

filterChanged: Event

Occurs after a column filter has been edited by the user.

Use the event parameters to determine the column that owns the filter and whether changes were applied or canceled.

filterChanging

filterChanging: Event

Occurs when a column filter is about to be edited by the user.

Use this event to customize the column filter if you want to override the default settings for the filter.

For example, the code below sets the operator used by the filter conditions to 'contains' if they are null:

filter.filterChanging.addHandler(function (s, e) {
  var cf = filter.getColumnFilter(e.col);
  if (!cf.valueFilter.isActive && cf.conditionFilter.condition1.operator == null) {
    cf.filterType = wijmo.grid.filter.FilterType.Condition;
    cf.conditionFilter.condition1.operator = wijmo.grid.filter.Operator.CT;
  }
});