Filter feature layer

This widget demonstrates how to filter a feature layer data source programmatically.

How to use the sample

Clone the sample repo and copy this widget's folder (within widgets) to the client/your-extensions/widgets folder of your Experience Builder installation.

How it works

In setting.tsx, the data source and attribute property to filter on is chosen.

In widget.tsx, a instance of DataSourceManager is obtained using DataSourceManager.getInstance(). Then the DataSourceManager instance is used to get the FeatureLayerDataSource (the one that was chosen in the settings panel) using the getDataSource() function. Finally, the SqlQueryParams for the filter are built based on what the user typed into the input box, and updateQueryParams() is called to filter the features.

// First get the DataSourceManager instance
const dsManager = DataSourceManager.getInstance();

// Get the data source using useDataSource.dataSourceId
const useDataSource = props.useDataSources[0];
const ds: FeatureLayerDataSource = dsManager.getDataSource(useDataSource.dataSourceId) as FeatureLayerDataSource;

// Build the queryParams, with the configured filterField and the value
// that has been typed into the TextInput by the user
const queryParams: SqlQueryParams = {
  where: `${props.config.filterField} LIKE '%${evt.target.value}%'`
};

// Filter the data source using updateQueryParams function.
ds.updateQueryParams(queryParams, props.id);

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