Bind Multiple Tables Data In One Chart

In DataCharts, you can bind data from multiple tables, but these tables must have an existing relationship and be connected through related fields. In the below demo, you can see two different DataCharts with data from multiple tables in each. You can click on each DataChart and click the "Data Binding" tab in the UI to see what data each is bound to.

This sample is loading a predefined template using fromJSON. You can open the sample in a new window to view the DataChart settings in SpreadJS Designer.
window.onload = async () => { const loadingTip = addLoadingTip(); const { spread, designer } = createSpreadAndDesigner(); const res = await fetch('$DEMOROOT$/en/sample/features/data-charts/bind-multiple-tables/spread.json'); await spread.fromJSON(await res.json()); new GC.Spread.Sheets.DataCharts.DataChartConfigPanel('panel-host', spread); spread.getActiveSheet().dataCharts.all()[0].isSelected(true); loadingTip.remove(); if (designer) { designer.refresh(); } } function createSpreadAndDesigner() { const demoHost = document.getElementById('demo-host'); if (window !== top) { return { spread: new GC.Spread.Sheets.Workbook('spread-host', { sheetCount: 1 }), } } else { const designer = new GC.Spread.Sheets.Designer.Designer(demoHost, undefined, undefined, { sheetCount: 1 }); return { designer, spread: designer.getWorkbook(), } } } function addLoadingTip() { const div = document.createElement('div'); div.style.position = 'absolute'; div.style.inset = '0'; div.style.display = 'flex'; div.style.alignItems = 'center'; div.style.justifyContent = 'center'; div.style.background = 'white'; div.style.zIndex = '100'; div.textContent = 'Loading data from server ...'; document.body.appendChild(div); return div; }
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