Multi-tree-select
The multi-tree-select widget captures the user input from a specified list of permitted options, and these options can have child options within them. It captures multiple choices.

Displaying Data

Multi-tree-select's options can be populated from a data source like an API / Query by transforming the incoming data to an array of \(label, value\). The transformation can be performed using javascript. So if the data is an array, we can transform it using the Array.map function.
1
// Query1.data is assumed to be an array here
2
{{ Query1.data.map((row) => {
3
return { label: row.name, value: row.id, children: {label: row.child.label, value: row.child.value}
4
})
5
}}
Copied!

Filtering Data

A Multi-tree-select widget can filter a dataset based on the user's input. The selected value can be passed to an API using {{ MultiTreeSelect1.selectedOptionValues }} .

Form Submission

The multi-tree-select widget can capture from a fixed set of options inside a form such as a gender, role, and status.
Some forms need to be pre-filled data from a table or API. We can bind the data to the default text property to enable this.
1
{{ Table1.selectedRow.categories }}
2
/**
3
* Binding this to the default option will update the selected options
4
* of the MultiTreeSelect widget with the gender of the selected row in Table1
5
*/
Copied!
Read more about submitting Input data to an API below.

Properties

Properties allow you to edit the widget, connect it with other widgets and customize the user actions.

Widget Properties

These properties allow you to edit the Muti-tree select widget. All these properties are present in the property pane of the widget. The following table lists all the widget properties.
Property
Description
Mode
Mode to display options.
Options
It lets you set labels and values for different items/options in the list of the multi-select widget. Options must be specified as an array of objects with a label and value property and the optional children property.
Default Value
Sets a default option that will be captured as user input unless the user changes it. Multiple values can be provided as CSV or an array of value strings for a Multi-Select dropdown.
Placeholder
Sets the Placeholder of the multi-select widget.
Required
When turned on, it makes a user input required and disables any form submission until input is made.
Visible
Controls widget's visibility on the page. When turned off, the widget will not be visible when the app is published.
Disabled
Disables input/selection to the widget. The widget will remain visible to the user but user input/selection will not be allowed.
Animate Loading
Control’s widget’s loading animation on the page. When turned off, the widget will load without any skeletal animation. This can be controlled with JS until all the widgets are rendered.
Clear All Selections
When turned on, it allows users to clear the selection which was the default or the selection made by them.
Expand all by default
It shows a dropdown in an expanded state when turned on, revealing all the children options.

Binding Properties

These properties allow you to bind your widget with any other widget in queries or JS objects. The following table lists all the binding properties.
Property
Description
options
This property shows the values of all the options.
isVisible
This property indicates whether the widget is visible or not.
isDisabled
This property indicates whether the widget is disabled or not.
isValid
This property indicates whether the values are valid or not.
selectedOptionValues
An array of values of the options are displayed in a MultiTree-Select dropdown. This value changes if the default values of the dropdown change or the user changes an option selection.
selectedOptionLabels
An array of Labels of the options are displayed in a MultiTree-Select dropdown. This label changes if the default values of the dropdown change or the user changes an option selection.

Events

They are a set of actions that you can perform on the widget. The following table lists the actions:
Events
Description
onOptionChange
Sets the action to be run when the user selects/unselects an option. See a list of supported actions.

Label

The property hosts a group of configurations that you can use to associate a display name and define a placement for the widget. These properties are usually useful when you want to design forms that follow a defined alignment for your form fields and give a professional look to your forms. Below are the properties that you can use:
Label
Description
Text
It is a group of properties that allows you to provide a name to the field and define the placement of the widget. Learn more.
Position
Sets the label position of the widget.
Alignment
Sets the label alignment of the widget.
Width
Sets the label width of the widget as the number of columns.
Let's understand these properties in detail:

Text

It allows you to set the display name for the Multi-tree-select widget. For example, if you want the user to add multiple categories, you can enter the text as "Categories."
You can leave the text empty if you don't want any display name for your Multi-tree-select widget.

Position

It allows you to specify the placement of the label. You can select one of the available options:
  • Top - It allows you to align the text at the top of the Multi-tree-select widget.
  • Left - It aligns the text to the left of the Multi-tree-select. When you select Left alignment, you get additional settings that you can use to control the alignment and define the text's width.
    • Alignment - With the help of alignment, you can define the placement of the text in accordance with the position of the Multi-tree-select widget. You can choose:
      • Left - It aligns the text to the widget's left boundary that is away from the Multi-tree-select widget.
      • Right - It aligns the text closer to the Multi-tree-select widget.
    • Width - With the help of width, you can define the number of columns in the grid that surrounds the widget. You can specify how close or far the text can be placed to the Multi-tree-select widget.
  • Auto - It automatically adjusts the position of the text based on the Multi-tree-select widget's height.
Columns are the dashed lines (-----) that surround a widget when you try to drag and drop it on the canvas.

Styles

Style properties allow you to change the look and feel of the widget.
Styles
Description
Border Radius
Allows you to define curved corners.
Box Shadow
Allows you to choose from the available shadow styles.
Label Text Color
Allows you to set text color for the label.
Label Text Size
Allows you to set the size of the label.
Label Font Style
Allows you to choose a font style, i.e., bold or italic.