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SpreadJS Documentation / Developer's Guide / Features / Manage Data Visualization and Objects / Barcodes / EAN-8
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    EAN-8
    In This Topic

    EAN-8 barcode is a barcode that uses only numeric characters and a check digit. This barcode accepts only seven numbers as a string to calculate a check digit (CheckSum) and add it to the eighth position. The check digit is an additional digit that can be used to verify that the barcode has been scanned accurately. When the CheckSum property is set to True, the check digit is automatically added.

    A screenshot depicting EAN-13 barcode sparkline is shared below.

    EAN-13 barcode sparkline

    Formula definition

    You can set EAN-8 barcode sparkline in a worksheet using the following formula:

    =BC_EAN8(value, color, backgroundColor, showLabel, labelPosition, fontFamily, fontStyle, fontWeight, fontTextDecoration, fontTextAlign, fontSize, quietZoneLeft, quietZoneRight, quietZoneTop, quietZoneBottom)

    Parameter

    Name Description
    value Specifies that the value length must be 7 or 8.
    color A color that represents the barcode color. The default value is 'rgb(0,0,0)'.
    backgroundColor A color that represents the barcode backgroundcolor. The default value is 'rgb(255, 255, 255)'
    showLabel Specifies whether to show label text when the barcode has label.
    labelPosition ​A value that represents the label position when the label is shown.
    fontFamily A string that represents the label text fontFamily. The default value is 'sans-serif'.
    fontStyle A string that represents the label text fontStyle. The default value is 'normal'.
    fontWeight A string that represents the label text fontWeight. The default value is 'normal'.
    fontTextDecoration A string that represents the label text fontTextDecoration. The default value is 'none'.
    fontTextAlign A string that represents the label text fontTextAlign. The default value is 'center'.
    fontSize A string that represents the label text fontSize. The default value is '12px'.
    quietZoneLeft A value that represents the size of left quiet zone.
    quietZoneRight A value that represents the size of right quiet zone.
    quietZoneTop A value that represents the size of top quiet zone.
    quietZoneBottom A value that represents the size of bottom quiet zone.

    Using Code

    This example code sets EAN8 sparkline in the worksheet.

    JavaScript
    Copy Code
    var sheet = spread.getActiveSheet();
    // Set EAN-8 Barcode Sparkline
    sheet.setValue(3, 1, "EAN - 8", GC.Spread.Sheets.SheetArea.viewport);
    sheet.setValue(3, 2, "4137962", GC.Spread.Sheets.SheetArea.viewport);
    // Set Style
    sheet.setRowHeight(3, 100);
    for (var col = 1; col < 4; col++)
    {
        sheet.setColumnWidth(col, 200);
    }
    sheet.getRange(3, 0, 1, 4).hAlign(GC.Spread.Sheets.HorizontalAlign.center);
    sheet.getRange(3, 0, 1, 4).vAlign(GC.Spread.Sheets.VerticalAlign.center);
    // Set Formula
    sheet.setFormula(3, 3, '=BC_EAN8(C4)');