JavaScript Data GridAutocomplete cell type

Collect user input with a list of choices, by using the autocomplete cell type.

Overview

You can edit the autocomplete-typed cells in three different ways:

  • Flexible mode
  • Strict mode
  • Strict mode using Ajax

In all three modes, the source option can be provided in two formats:

  • An array of values
  • An array of objects with key and value properties

Autocomplete flexible mode

This example uses the autocomplete feature in the default flexible mode. In this mode, the user can choose one of the suggested options while typing or enter a custom value that is not included in the suggestions.

    Autocomplete strict mode

    This is the same example as above, the difference being that autocomplete now runs in strict mode. In this mode, the autocomplete cells will only accept values that are defined in the source array. The mouse and keyboard bindings are identical to the Handsontable cell type but with the differences below:

    • If there is at least one option visible, there always is a selection in HOT-in-HOT
    • When the first row is selected, pressing Arrow Up does not deselect HOT-in-HOT. Instead, it behaves as the Enter key but moves the selection in the main HOT upwards

    In strict mode, the allowInvalid option determines the behaviour in the case of manual user input:

    • allowInvalid: true optional - allows manual input of a value that does not exist in the source, the field background is highlighted in red, and the selection advances to the next cell
    • allowInvalid: false - does not allow manual input of a value that does not exist in the source, the Enter key is ignored, and the editor field remains open

      Autocomplete strict mode (Ajax)

      Autocomplete can also be used with Ajax data sources. In the example below, suggestions for the "Car" column are loaded from the server. To load data from a remote asynchronous source, assign a function to the 'source' property. The function should perform the server-side request and call the callback function when the result is available.

        The source option

        The source option can be provided in two formats:

        Array of values

        You can provide the source option as an array of values that will be used as the autocomplete suggestions.

          Array of objects

          You can provide the source option as an array of objects with key and value properties. The value property will be used as the autocomplete suggestion, while the entire object will be used as the value of the cell.

            API methods

            When working with object-based autocomplete data, you can use methods like getSourceData(), getSourceDataAtCell(), getSourceDataAtRow() etc., to get the data in its original object format with both key and value properties. The getData() method will return only the value property's value.

            TIP

            Note: When the source option is declared as an array of key + value objects, the data in the edited cell should also be an object with key + value properties.