In SpreadJS, you can add a floating object to the JavaScript spreadsheet, and it is displayed on the top of the cells. The below workbook shows a standard floating object in a sheet.
FloatingObject: Exposes the content property so that the user can customize the HTMLElement content.
To add a FloatingObject to the sheet, you need to create a FloatingObject object and use the add method to add it to the sheet. For example:
var customFloatingObject = new GC.Spread.Sheets.FloatingObjects.FloatingObject('f1');
customFloatingObject.startRow(1);
customFloatingObject.startColumn(1);
customFloatingObject.endColumn(6);
customFloatingObject.endRow(6);
var div = document.createElement('div');
div.innerHTML = '<span> SpreadJS supports FloatingObject.</span>'+
'<div style='border: 1px dotted gray; width: 60%; height:70%; margin:auto;'>' +
'<ul><li>First list</li></ul><ul><li>Second list</li></ul></div>';
customFloatingObject.content(div);
sheet.floatingObjects.add(customFloatingObject);
After you add the custom floating object, you might want to work with it. Use the get method to get it by name, or use the all method to get all the FloatingObject objects. When you do not need it, you can use the remove method to remove it by name.
For example:
var floatingObject = sheet.floatingObjects.get('f1');
sheet.floatingObjects.remove('f1');
Floating objects are floated on the top of cells, but if there is a floating object that is on top of another one, you might want to put the lower one on top of the upper one. Use the zIndex method to set the z-index of the floating object. For example:
sheet.floatingObjects.zIndex('f1', 2000);
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