Kuika's Tree element is used for visual representation of hierarchical data structures. To help users better understand information, this element organizes a series of elements and sub-elements in a layered manner. Tree elements present complex data in an organized format, allowing users to easily explore data. For example, it can be used to show folder structure in a file manager application or page hierarchy in a content management system. In this tutorial, you will learn how to create a hierarchical structure in your application using the Tree element.

The Tree element is only supported by web applications.

This training content consists of the following topics:

Adding a Tree element,
Binding data to a Tree element,
Authorization,
Visibility,
Editability,
Customize the interface design with Style Panel,
Actions.

Add Tree Element

After logging in to the Kuika platform, open the project you will work on from the “Apps” screen.

In the “UI Design” (1) module, drag and drop the Tree element (4) under the “Display” (3) category from the “Elements” (2) panel on the left edge.

Bind Data to Tree Element

The Tree element cannot be used as a special list; it is therefore dependent on the data table. To bind data to the Tree element:

You can bind data from the “Options” section in the Properties panel on the right sidebar.

Actions: This is the field where the data to be linked to the Tree element is defined or selected.some text
- Field to Display ID: One of the columns in the Datasource is selected to display the data extracted. In this field, the database column to be displayed should be selected.
- Field to Use as Key: It is the part where the data type to be used as key in the extracted data is selected. Usually “Guid” is selected.
- Field to Use as Parent: In the data to be extracted, parent ID is selected in this field. The order of the data is determined with this value. If the data to be pulled is to be displayed at the top, not under any parent, the value of the parent ID should be returned as “null”.

You can perform the data connection by following these steps.

Authorization.

You can customize user access with “Anonymous Access” and “All Roles Access” authorization options on the screens and elements of your application. While “Anonymous Access” enables access without any account information query, “All Roles Access” provides access by verifying user account information.

For element level authorization, you can manage the security and user experience of your application by selecting the relevant element and editing the “Authorization” settings from the Properties panel.

Visibility.

It allows you to adjust the visibility of screens or elements. Visibility in Elements allows you to regulate visibility based on a specific state or condition. For each element, you can make it always visible, hidden, or visible and hidden depending on a condition.

Click on the element on the screen.
Open the “Properties” panel on the right side.
Click on the “Visibility” field and make one of the following selections according to the needs of your application. Kuika offers Always Visible, Hidden, Sometimes Visible options to control the visibility of the screens in your application.

Always Visible: Ensures that the screens in your app are always visible. ‍
Hidden: Allows hiding screens in your application. ‍
Sometimes Visible: Makes screens in your application conditionally visible.

Editability

Allows you to make elements editable.

Enabled: Selecting this option makes the element editable.
Disabled: In this case, the element cannot be edited.
Sometimes Enabled: This option means that the element is sometimes editable and sometimes not, depending on certain conditions.

Customize the İnterface Design with Style Panel

By customizing your elements with the Styling Panel, you can create unique and impressive user interfaces in your web and mobile applications.

The sections defined below vary depending on the element.

Layout‍: Here you can make visual adjustments such as sizing, alignment and padding of elements. These settings also affect the layout of other elements within the element. Properties include Size, Min Size and Align; however, some elements may not support the Display property.
Text: The element's text properties can be edited here through font family, style, color, size, spacing and other options. This section supports all Text related adjustments.
Fill: You can use the Fill setting to customize the element's background with color or images.
Border: You can give your elements a more aesthetic look by adding borders and adjusting the corner radii.
Shadow: You can add a shadow effect to elements used in web applications to give a sense of depth. However, the shadow feature may not be supported as some elements are not suitable for mobile applications.

Actions.

Kuika contains system actions such as Arithmetic, Authorization, Condition, Device, Export, Geolocation, Invers, Local Storage, Multi Language, Navigation, Notification, Payment, UI Control, Process Administration, Process Automation, Trigger, Process Automation, Process Administration and String Operations.

In addition to system actions, you can also use SQL actions that you create yourself.

To add actions to elements, you can use the “+ADD ACTION” button from the Properties panel on the right side.