Configure Pie or Donut Chart

Overview

This article helps you configure Pie or Donut chart using the components available in the WebApp Builder. This chart is ideal for displaying proportional relationships, percentage-based comparisons, or resource allocations.

Prerequisites

Review the recommendations provided to design/create a chart dataset.
Ensure that a Dataset is created for the appropriate chart type and purpose, using the required fields.
When cleansing or enriching data, users may want to visualize their work with charts. In this case, create a Grid or Form container on a construct page and use the same dataset to bind data between the Grid or Form and the Chart containers.
For example, you are cleansing customer records in a Grid container by correcting missing or invalid values. You can then use the same dataset in a Chart container to visualize customer distribution by region. Since both the Grid and Chart share the same dataset, any changes in the Grid are automatically reflected in the Chart.

Dataset Design Recommendations

Not ideal for grouped data.
Requires two 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.
Ensure that the Value Field property is assigned to a column with a NUMERIC(precision, scale) data type in your dataset.
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.

Pie or Donut Chart Example

Sample Dataset

Configuration

Rendered Chart

Pie Chart Configuration

Donut Chart Configuration

Donut Chart with Pad Angle 5, Inner Radius 0.5, and Legend enabled

Configuration Steps

Note
You can interact with Build Assist to quickly configure charts as required by entering a prompt that provides the context of the dataset and the fields to be used.

On the Construct Preview’s home page, edit the required WebApp. The WebApp configuration page is displayed.
Click More Options (…) next to the required page or container node and select Add Chart > Add Pie Chart.
Click the Pie Chart node. The Details Pane is updated with the Pie Chart fields.

Enter the required values for the fields to create a Pie or Donut chart in a container using the following tables:

Field Name	Description	Supported Values/Notes
Name *required*	Name of the Pie or Donut 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.
Label Field *required*	Select a field from the dataset used to render the labels.	NA
Value Field *required*	Select a field from the dataset used to render numeric values in the chart.	NA
Enable Arc Link Labels	Toggle this field to display labels next to the respective portions of the chart.	This toggle can be used instead of Legends.
Legend	Toggle this field to display a legend on the chart.	This toggle can be used instead of Arc Link Labels. Selecting or deselecting a legend item will remove or add the corresponding data on the chart.
Value Unit	Unit of measure that displays next to chart values.	Enter a name within length constraints. maxLength: 20
Inner Radius	Setting inner radius greater than 0 creates a Donut chart.	This field allows you to switch between Pie or Donut chart. minimum: 0, maximum: 0.95, default: 0
Pad Angle	Defines padding angle between portions of chart.	minimum: 0, maximum: 45, default: 1
Start Angle	Defines the starting angle of the chart.	minimum: -180, maximum: 360, default: 0
End Angle	Defines the ending angle of the chart.	minimum: -360, maximum: 360, default: 360
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