# Code128

DsExcel supports Code 128 Barcode which is mainly used in enterprise internal management and logistic control system. Learn more in DsExcel docs.

## Content

The Code 128 barcode is a linear barcode that represents high-density linear symbology to encode text, numbers, various functions and the entire 128 ASCII character set (from ASCII 0 to ASCII 128). It is widely used in enterprise internal management, production process, logistics control system of the bar code system.
The below image displays Code128 barcode in a PDF document.
![Code128](https://cdn.mescius.io/document-site-files/images/e333ad47-35da-43f9-a389-25433765f491/images/code128.png)

## Formula definition

You can set Code128 in a worksheet using the following formula:
=BC\_CODE128(value, color, backgroudColor, showLabel, labelPosition, codeSet, fontFamily, fontStyle, fontWeight, fontTextDecoration, fontTextAlign, fontSize, quietZoneLeft, quietZoneRight, quietZoneTop, quietZoneBottom)

## Parameter

| Name | Description |
| ---- | ----------- |
| value | A string that represents encode on the symbol of Code128. |
| 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. |
| codeSet | A value that represents which code is set to use for QRCode\. It has 'auto\|A\|B\|C' values\. The default value is 'auto'\. |
| 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 Code128 in the worksheet.

```csharp
// Create a new workbook
var workbook = new GrapeCity.Documents.Excel.Workbook();

// Set worksheet layout and data
IWorksheet worksheet = workbook.Worksheets[0];
worksheet.Range["B:F"].ColumnWidth = 20;
worksheet.Range["4:7"].RowHeight = 60;
worksheet.Range["A:A"].ColumnWidth = 5;
worksheet.Range["B2"].Value = "Code128";
worksheet.Range["B2:F2"].Merge(true);
worksheet.Range["B3:F3"].Value = new object[,]{
{"Name", "Number", "Defult", "Hidden Label", "Custom Label Font"}
};
worksheet.Range["B4:C7"].HorizontalAlignment = HorizontalAlignment.Center;
worksheet.Range["B4:C7"].VerticalAlignment = VerticalAlignment.Center;
worksheet.Range["B2:F3"].HorizontalAlignment = HorizontalAlignment.Center;
worksheet.Range["B2:F3"].VerticalAlignment = VerticalAlignment.Center;
worksheet.Range["B4:C7"].Value = new object[,]
  {
    {"Police", 911},
    {"Telephone Directory Assistance", 411},
    {"Non-emergency Municipal Services", 311},
    {"Travel Info Call 511", 511}
  };
worksheet.Range["B4:C6"].WrapText = true;
worksheet.Range["G6"].WrapText = true;
worksheet.PageSetup.Orientation = PageOrientation.Landscape;
worksheet.PageSetup.PrintGridlines = true;
      
// Set formula
for (var i = 4; i < 8; i++)
{
   worksheet.Range["D" + i].Formula = "=BC_CODE128" + "(C" + i + ")";
   worksheet.Range["E" + i].Formula = "=BC_CODE128" + "(C" + i + ", , , false))";
   worksheet.Range["F" + i].Formula = "=BC_CODE128" + "(C" + i + ", , , true, \"top\", \"B\",\"Arial\", \"normal\")";
}

// Save to a pdf file
workbook.Save("code128.pdf");
```