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AVEVA™ Work Tasks

Hierarchical List

  • Last UpdatedJun 25, 2024
  • 3 minute read

Use Hierarchical List control to view a hierarchical list in your form.

Properties

The properties for the control are grouped under the following tabs:

Basic

Property

Description

Name

Name that identifies the control. This value is also used for the label of the control.

Description

Description for the control.

Lookup Source

Name of the item in the Lookup List.

To add a name of the item in the Lookup List for the control

  1. Click the Lookup Source button. The Lookup Source Configuration page appears.

  2. In the Data Source Type list, click a data source type.

  3. In the Data Source box, click a data source.

  4. In the Parameters list, click and select a control on the form, if applicable.

  5. Design your hierarchical list by dragging and dropping the column names.

  6. Click Save & Continue. The selected name is set for the control and the Lookup Source Configuration page is closed.

    Note:
    - Only non-parameterized Web API lookups are supported.
    - The first node is used for generating the schema. If the elements are missing, it will not be shown in the Lookup Source Configuration.
    - For information about Lookup List, see List Lookups.

Appearance

Property

Description

Visible

Show or hide the control.

  • Select Yes to show the control.

  • Select No to hide the control.

    The default value is Yes.

Label Position

Position of the label for the control.

  • Select Default to allow the system to align the label. The system aligns the label to the left of the control or as specified by the container control.

  • Select Left to align the label to the left of the control.

  • Select Top to align the label to the top of the control.

  • Select Right to align the label to the right of the control.

  • Select Bottom to align the label to the bottom of the control.

  • Select Suppress to hide the label for the control.

    The default value is Top.

Note:
- If the value is Default and the control is placed on a container control, then the value of the Label Position property of the container control determines the position of the label for the control.
- For example, if the value is Default and the control is placed on a Base Form with Label Position property set to Top, then the label is aligned to the top of the control.

Label-Control Area

Area occupied by the label and the control in percentage.

  • Select Default to allow the system to set the label and the control areas.

  • Select Custom to specify the label area. The control area is automatically set based on the label area.

    The default value is Default.

Note:
- If the value is Default and the control is placed on a container control, then the value of the Label-Control Area property of the container control determines the area of the label for the control.
- This is applicable only when the Label Position is set to Left or Right.

Width

Width in pixels for the control.

The default value is 0.

Note: If the value is 0, then the width of the control is set as per the default values.

Height

Height in pixels for the control.

The default value is 450.

Note: If the value is 0, then the height of the control is set as per the default values.

Retain Space

Reserve or remove space when the control is hidden.

  • Select Yes to keep space when the control is hidden.

  • Select No to remove space when the control is hidden.

    The default value is No.

Advanced

Property

Description

ID

Reference identification code for the control. This value is automatically generated and cannot be changed.

Default Number of Records

Number of records added at run-time for the control.

The default value is 50.

Note: If the value is 0, then the default number  of records for the control is set as per the default values.

Scripts

For information about using scripts, see scripting guidelines for Hierarchical List control.

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