Tree Select
It is a hierarchical dropdown list, that organizes the data into parent-child format and presents it in a tree-branch view. This is the same as the Tree widget, with extra features added to it.
Basic
Tree Data
The JSON-formatted data that is served as the content of the widget. The format must depict the parent-child link among the values, allowing the widget to display in a tree format. The properties of the JSON content as below.
Property | Description |
---|---|
label | Label for the node |
value | Value for the node which must be unique for the entire content |
children | Array of children nodes |
disabled | Make the node read-only |
selectable | Specify if the node can be selectable |
checkable | Specify if the node can be checked, if the type is checkbox |
disableCheckbox | Make the node disable, when the type is checkbox |
Placeholder
Specifies a hint that describes the expected value. The placeholder shows the hint text in the widget when nothing is selected or entered. This text disappears as soon as a value is entered in the control.
Validation
Required Field
Refers to the field that must be completed by the user, which means the field must be entered with a valid value before submitting the information.
Custom Rule
Apart from validating the entry using the regex rule, users can also use this property to write low-code and check other aspects. For example - check if the city selected in the previous field matches the desired value, throw a custom message to the user even before capturing the entry on this field.
Interaction
Event Handlers
Event | Description |
---|---|
| The "Change" event is activated when the value of the widget is changed. When this event triggers, the associated action gets executed. |
| This event is triggered when the widget receives focus, meaning it becomes the active element that can accept user input. |
| This event occurs when the user shifts the focus out of the widget. This can happen in different scenarios, such as when a user clicks outside an input widget they were typing in or when the user tabs to another field. |
Hide
This sets whether the widget has to be displayed on the screen when the program is loaded. This shows/hides the widget both on desktop and mobile devices.
Disabled
Disables the user interaction with the element on the page. It visually indicates that the element is inactive and prevents users from interacting with it when applied. Shows a red-crossed warning symbol and can be customized to disable the widget according to certain conditions using low-code.
Select Type
Property | Description |
---|---|
Single Select | Allows the user to select only one option at a time |
Multi Select | The users can pick more than one options from the list |
Checkbox | Shows a checkbox as a prefix to each item on the list for the users to select using the checkbox |
Default Values
Provide the JSON array of parent-child nodes which the user wants to display the nodes as the selected node by default.
Show Clear Button
Displays a small 'x' type button at the end of the widget, which helps the user to clear out the previous entries and selections.
Searchable
Enables the search feature for users to type and search. It filters down the results and shows the matching options.
Layout
Expanded Values
Provide the JSON array of parent-child nodes which the user wants to display the nodes as the expanded list by default.
Default Expand All Nodes
Toggle this to make all the nodes on the list to be displayed as the expanded list of tree.
Show Line
This creates a line-link among the nodes, showing the parent-child relation explicitly.
Widget Tooltip
This tooltip pops up when the user moves the mouse over the input area of the widget. It is commonly used to hint at the type of input the user needs to provide.
The tooltip will be immediately shown when the user's mouse hovers over the widget, and immediately hides when the user's mouse leaves. This information will be contextual, useful, and informative.
Label
Represents the caption for the widget in the user interface. It is recommended to keep the label string short and convey the usage of the widget in the UI
Tooltip
This tooltip pops up when the user moves the mouse over the label area of the widget. This is commonly used to provide some extra or important information to the user on the usage of the widget.
The tooltip will be immediately shown when the user's mouse hovers over the widget, and immediately hides when the user's mouse leaves. This information will be contextual, useful, and informative.
Position
Property | Description |
---|---|
| Shows the label on the left side of the widget entry |
| Shows the label on top of the widget entry |
Alignment
Property | Description |
---|---|
| Align the text on the left corner of the label area |
| Align the text on the right corner of the label area near the tree view |
Width
Enter a number value to set the width of the widget. It can be set in terms of pixels and percentage.
Style
Property | Description |
---|---|
Text | Set the colour of the options' text. Recommended to set in contrast with the background. |
Loader Color | Pick the colour to the loading spinner when the component shows the loader before getting displayed. |
Text Transform | This property specifies how to capitalize an element's text. It can be used to make text appear in all-uppercase or all-lowercase, or with each word capitalized. MDN web docs |
Text Decoration | This property sets the appearance of decorative lines on text. Types are "underline", "overline", "line-though", "overline-underline". |
Text Size | Set the size of the text in px value - 12px |
Text Weight | Increase or decrease the thickness of the font using the list of numbers from 100-800. |
Font Family | Type the name of the font family. The reference to the list of font families can be found here: MDN web docs |
Font Style | There are 3 types of styles that can be applied: "normal" - The text is shown normally, no style applied. "italic" - The text is cursive. "oblique" - A sloped version of the normal text. |
Background | Users can change the colour of the text background using this property. It has all the RGB colour ranges to pick from. It is recommended to use a corresponding background colour that shows the font clearly. |
Border Color | Set the colour to the border lines. The border lines will be shown only if that is enabled. |
Margin | This value is set in terms of "px" number which creates the space between the border and the content of the widget. |
Padding | This value is set in terms of "px" number which creates the space between the border and outer elements. |
Border Radius | This sets the radius of the widget's corners, enabling rounded corners on the widget. This value is defined in "px" terms. |
Border Width | Set the thickness of the border of the widget using this value. It is defined using "px" terms. |
Tags | Set the colour for the chosen options and displayed as the selected items. |
Tags Text | The colour for the 'x' mark on the chosen options. |
Accent | An accent is a typically bright colour that contrasts with the more utilitarian background and foreground colours within a colour scheme. These are present in the visual style of many platforms (though not all). On the web, an accent is sometimes used in input elements for the active portion of the control, for instance, the background of a checked checkbox. MSDN web docs |
Validation Message | Set the colour of the validation text message. Recommended to set in contrast with the background, usually Red. |
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