UPC-A
UPC-A is a linear symbology, widely used in the United States and Canada for tracking trade items in stores.
This symbology is also known as Universal Product Code version A.
A sample of this symbology
The 13-character value is divided into four parts: system code, manufacturer code, product code, and check digit.
Symbology Characteristics
The following table gives an overview of the characteristics of the symbology.
| Item | Details |
|---|---|
| Implementation Class | UpcASymbology |
| Base Class | LinearBarCodeSymbology |
Related ValidationRule Class |
UpcAValidationRule |
| Encodable Characters | Number characters. |
| Supports Checksum | Yes. This symbology implementation auto-calculates and inserts a check digit. |
| Has Special Start/Stop Characters | No. |
| Fixed Length Requirements | The value must be 11 characters with a 12th character, the check digit, automatically calculated and added by the symbology. |
Important Members
This symbology has these important members:
| Member | Description |
|---|---|
| Background Property | Gets or sets the Brush to use for rendering the background. |
| BarHeight Property | Gets or sets the desired height of the bars. |
| BarWidthRatio Property | Gets or sets the width ratio of wide lines to narrow lines. |
| DisplayName Property | Gets the display name of the symbology. |
| DisplayValue Property | Gets or sets the value that is displayed if ValueDisplayStyle is not None. |
| Foreground Property | Gets or sets the Brush to use for rendering the foreground. |
| MeasureDesiredSize Method | Measures the desired size of the symbology, based on the specified available size. |
| MinBarHeightWidthRatio Property | Gets or sets the minimum ratio that the height of the bar code must be in relation to its width. |
| QuietZoneThickness Property | Gets or sets the Thickness of the quiet zone. |
| Render Method | Renders the symbology to the specified DrawingContext. |
| ToBitmap Method | Creates a BitmapSource based on the contents of the symbology. |
| ValidateValue Method | Validates that the symbology can parse the specified value. |
| Value Property | Gets or sets the value to encode in the bar code. |
| ValueDisplayStyle Property | Gets or sets a LinearBarCodeValueDisplayStyle that indicates how the value should rendered. |
| ValueIntrusionOffset Property | Gets or sets the distance that the Value text intrudes into the bar code when ValueDisplayStyle is not None. |
Sample XAML
This sample XAML code shows how to create a BarCode using this symbology.
<barCode:BarCode>
<barCode:UpcASymbology Value="03600029145" />
</barCode:BarCode>