useList

The hook for loading a list of data items from the Qlik engine. To use it, pass an object with at least a dimension array.

Basic Example
The below example returns list data to the console from a dimension called country.
import { useList } from "@motor-js/engine"
​
const Filter = () => {
​
    const dimension = ['country'];
​
    const {
        listData,
        select,
        beginSelections,
        endSelections,
        selections,
        clearSelections,
      } = useList({
        dimension,
      });
​
    console.log(listData);
​
    return (
    <div></div>
    );
​
};
List Options
The following options can be passed into the hook
dimension: Array
Required
The dimension in your Qlik application from which you are extracting data for
Needs to be an array containing a single item
qPage: Object
Optional
Must be an object in the following structure: { qTop: num, qLeft: num, qWidth: num, qHeight: num }
Size of the extracted data from the engine
Lists will always have a qWidth of 1
autoSortByState: Boolean
Optional (default set to true)
Auto sorts items by state
List Properties
The following properties are returned from the hook
listData: Array<Data>
An array of data objects. See Data Properties for more information
select: Function([qElemNumber])
A function to apply selections against the Qlik engine
Needs to be an array of the element numbers you wish to select
Element numbers are equivalent to the key field returned from mData
beginSelections: Function
A function to begin the selections mode, equivalent to this Qlik method
endSelections: Function
A function to end the selections mode, equivalent to this Qlik method
selections: Array<Object>
Array of objects containing the selected items. This data structure is the same as listData.
selectionsId: Array
An array of selected element numbers
clearSelections: Function
Clears all selections for the particular dimension
Data Properties
The following object properties are returned in each instance of the listData array
key: number
The Element number of the returned list item. This is a unique key associated to every returned data item
Use this to apply selections
text: string
The text value of the list item returned from the engine
number: number
The number value of the list item returned from the engine
state: string
Selection state

useGlobal

useSearch

Last modified 2yr ago