Configure Treemap Chart

Overview

This article helps you configure Treemap chart using the components available in the WebApp Builder. This chart is ideal for visualizing hierarchical data with part-to-whole or parent-child relationships, portfolio composition analysis, or displaying nested category breakdowns where size represents value or volume.

Dataset Design Recommendations

• Ideal for visualizing hierarchical part-to-whole or parent-child relationships where size represents value or volume.

• Requires three columns from a dataset:

  Note

  You can use the same chart dataset in a Grid component if you plan to modify or manipulate the data.

  • Parent Field defines the top-level grouping or category, for example, Department, Product Category.

  • Child Field defines the sub-categories or items nested within each parent, for example, Product Name, Team.

  • Value Field must be a column with NUMERIC(precision, scale) data type. This determines the size of each rectangle, for example, Revenue, File Size, Count.

• In general, the dataset should have a clear parent-child relationship where each child belongs to exactly one parent.

• You need to include an additional field in your dataset if you plan to bind the chart dataset to a grid or form component’s dataset. Refer to Data Binding in Charts for more information.

Treemap Chart Example

Configuration Steps

1. On the Construct Preview’s home page, edit the required WebApp. The WebApp configuration page is displayed.

2. Click More Options (…) next to the required page or container node and select Add Chart > Add Treemap Chart.

3. Click the Treemap Chart node. The Details Pane is updated with the Treemap Chart fields.

4. Enter the required values for the fields to create a Treemap chart in a container using the following tables:

   Field Name	Description	Supported Values/Notes
   Name required	Name of the Treemap Chart Container.	Enter a name within length constraints. maxLength: 50
   Title	Label that is displayed on the top of this chart container.	Enter a title within length constraints. maxLength: 50
   Parent Layout Container	Name of the parent container used for page layout. Allows you to link child containers to a parent container.	Select the parent container to house this chart container.
   Ordinal	Allows ordering the containers.	Any integer. default: 0
   Tab Label	Label displayed as the tab name for a container. Use this property only when a container needs to be included in a tab container.	Enter a name within length constraints. maxLength: 50
   Override Datastore	SKP Datastore name for this component that overrides the datastore configured at the WebApp level. Refer to Datastores for more information. Click the Open Details button next to the Datastore list to open it in the SKP Catalog.	NA
   Dataset required	SKP dataset for the data used for this container. Select the required Dataset. Scroll down the Dataset list to auto-create a dataset using a table or view based on Construct Preview’s recommendation. Note If a dataset is being created from a SQL view, you must set its Affected Table. Click the Open Details button next to the Dataset list to open it in the SKP Catalog.	Note The Update Dataset button opens a dialog box that allows you to rescan the dataset and add any newly available fields from the underlying table or view to the dataset used in this container. Specify the dataset classification. If the scan errors out, access the associated Datastore’s scan logs in the SKP Catalog module to troubleshoot the error.
   Parent Field required	Select a field from the dataset that defines the top-level grouping or category that contains child elements.	This field establishes the first hierarchical level in the treemap structure. For example, In a sales treemap: Department (Electronics, Clothing, Home Goods)
   Child Field required	Select a field from the dataset that defines the sub-categories or individual items nested within each parent.	This field creates the detailed breakdown shown as rectangles within parent sections. For example, For Department parent, Product Category (Laptops, Phones, Tablets under Electronics)
   Value Field required	Select a field from the dataset that determines the size of each rectangle. Larger values create bigger rectangles, representing magnitude or importance.	For example, Revenue - shows sales performance ($225,000)
   Label Skip Size	Minimum size below which labels are hidden. Prevents text clutter on tiny rectangles that can't display readable text.	default: 12, maximum: 100
   Parent Label Position	Select a position to control where the parent field label and flow appears within its containing rectangle	default: Top
   Parent Binding Container	Select the parent grid/form container type for data binding. Allows you to link between grids/forms and charts.	NA
   Container Bindings > Source Column	Note Click Add to set up required number of container bindings. Select the source column in the parent binding container.	Use either the Source Column or the Source Value field, but not both.
   Container Bindings > Source Value	A fixed source value for data binding.	Use either the Source Column or the Source Value field, but not both.
   Container Bindings > Target Column required	Select the target column in the chart container’s dataset.	NA
   Columns > Name required	Note Click Add to set up required number of columns to control how the fields on the chart will be sorted. Select the field name from the dataset used in the chart container.	NA
   Columns > Sort Mode	Used with the Sort Priority field to configure the default column sort order:	Supported Values: None Ascending Descending
   Columns > Sort Priority	Used with the Sort Mode field to configure the default column sort order.	Default: 0
   Link to Page Name	Select the Page to navigate on click.	NA
   Open in New Tab	Enable this toggle to open the chart link in a new browser tab.	NA
   Link to Page Bindings > Name required	Note Click the Add button to add the required chart link to page bindings criteria. Specify a unique binding name for the page link	Enter a name for binding. maxLength: 256
   Link to Page Bindings > Target Column required	Specify the target column in the linked page	Enter target column name from your dataset. maxLength: 128
   Link to Page Bindings > Target Page Container Name	Specifies the container name in the linked page	Select the name of the grid or form container from the page you’ve selected.
   Link to Page Bindings > Source Data Record Field Value	Specifies the source column in the current page	Select source column name from your dataset.
   Link to Page Bindings > Fixed Value	Specifies the source value in the current page	Specify the value or the actual record of the source column. maxLength: 255
   Display Mode	Configures the display mode	* Card: Card-like format * Empty: No visual elements Default: Card
   Layout	Specifies how the containers flow within the page	* FlowHorizontal: Side-by-side display * FlowVertical: Top-to-bottom display
   Alignment	Controls the alignment for placing the container	* Start * Stretch * End Default: Stretch
   Size	Value of the units that are used to compute the size of a container	Any positive number. minimum: 0, default: 1
   Size Units	Units that are used to compute the size of a container	* Pixels * Rem * GrowRatio Default: GrowRatio
   Gap	The gap between containers or fields on a property card	Any positive number. minimum: 0, default: 1
   Padding	Adjusts the padding inside of the container	Any positive number. minimum: 0, default: 0

5. Click the Save & Preview button to validate that the Treemap chart is configured correctly.

Related Articles

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• Chart Types

• Data Binding in Charts