yumoqing
1291f7fee3
When valueField/textField are not explicitly set in opts, the auto-select logic (line 1140) and nullable empty-option creation (lines 1144-1145) used data[0][undefined] which returned undefined, causing: - Single-option selects to show blank (auto-select failed) - nullable empty options to have undefined keys Now extracts vf/tf local variables with ||'value'/||'text' fallback at the top of build_options(), used consistently throughout.
1.6 KiB
1.6 KiB
ChartPie
Control Functionality: Used to display pie chart data visualization. Supports generating interactive ECharts pie charts through configuration of data sources, field mapping, and chart options.
Type: Standard control
Parent Control: bricks.EchartsExt
Initialization Parameters
| Parameter Name | Type | Description |
|---|---|---|
| title | string | Chart title displayed at the top of the chart |
| description | string | Description information for the chart, can be used for hints or supplementary explanations |
| legend | object | Legend configuration options, controlling display properties such as position and style |
| pie_options | object | Custom configuration options for the pie series, such as radius, label formatting, etc. |
| data_url | string | Data request URL used to fetch the data required for the chart |
| nameField | string | Field name in the data used as the name for pie chart items |
| valueFields | array | Array of field names in the data used as values for the pie chart (typically the first field is used) |
| data_params | object | Additional parameters sent with the data request, combined with data_url |
| data | array | Static data array; if provided, this data will be used instead of loading from data_url |
Main Events
- element_click
Triggered when a user clicks on a data item in the pie chart.
The callback includes information about the clicked item, such asnameandvalue, which can be used to implement drill-down or detail display functionality.