Angular FilterBuilder - lookup
allowClearing
Specifies whether a user can nullify the lookup values. Set to true only if your data source accepts null values.
dataSource
Array of Objects
A simple JavaScript array containing a collection of plain objects.DataSource Configuration Object
The DataSource's configuration object. Learn more about the DataSource and the DevExtreme Data Layer concept from the Data Layer topic.NOTEWhen using a CustomStore for the lookup data source, you must implement the load and byKey functions.
The lookup data source must contain fields assigned to the valueExpr and displayExpr options.
See Also
displayExpr
Set this option to the name of a data field that provides displayed values...
displayExpr: "name"
... or to a function that combines the values of several data fields to create the displayed value:
displayExpr: function(item) { // "item" can be null return item && 'ID: ' + item.id + ', Name: ' + item.name; }
Leave this option unspecified or set it to this
if the data source contains primitives.
valueExpr
This field's values are replaced with the displayExpr field's values.
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