Code128Symbology Class
Represents a barcode symbology implementation for Code 128.
public class Code128Symbology : LinearBarcodeSymbologyBase- Inheritance:
- object ObservableObjectBase BarcodeSymbologyBase LinearBarcodeSymbologyBase object
- Derived:
- GS1128Symbology
Remarks
This symbology is also known as USS Code 128, ISBT 128, and GS1-128.
Code 128 is a high-density linear symbology that supports all 128 ASCII characters. It is one of the most widely used symbologies in logistics, shipping, and supply chain management due to its compact size, high data density, and built-in error detection.
Code 128 uses three code sets to efficiently encode different character subsets:
- Code Set A — ASCII characters 0–95, which includes control characters (0–31), digits, uppercase letters, and common punctuation.
- Code Set B — ASCII characters 32–127, which includes digits, uppercase and lowercase letters, and common punctuation.
- Code Set C — Pairs of digits (00–99), enabling double-density encoding of numeric data.
The symbology automatically selects the optimal code set for each segment of the value to produce the most compact barcode possible.
A mandatory modulo-103 check character is automatically calculated and inserted before the stop pattern.
Constructors
Code128Symbology()
Initializes an instance of the class.
public Code128Symbology()Properties
ExampleValue
An example value that is valid for the symbology.
Name
The name of the symbology.
Methods
CreateRenderData(BarcodeEncodingRequest)
Creates the render data for the specified encoding request.
public override BarcodeRenderData CreateRenderData(BarcodeEncodingRequest request)| Parameter | Type | Description |
|---|---|---|
| request | BarcodeEncodingRequest | The encoding request. |
Returns
- BarcodeRenderData:
The BarcodeRenderData for the encoded value.
Validate(string)
Validates the specified value.
public override BarcodeValidationResult Validate(string value)| Parameter | Type | Description |
|---|---|---|
| value | string | The value to validate. |
Returns
- BarcodeValidationResult:
A BarcodeValidationResult containing the validation result.
Inherited Members
- LinearBarcodeSymbologyBase.GetMargin()
- LinearBarcodeSymbologyBase.GetModulesWidth(int)
- LinearBarcodeSymbologyBase.BarHeight
- LinearBarcodeSymbologyBase.MinHeightToWidthRatio
- LinearBarcodeSymbologyBase.QuietZoneThickness
- LinearBarcodeSymbologyBase.ValueAlignment
- BarcodeSymbologyBase.CreateRenderDataAsync(BarcodeEncodingRequest, CancellationToken)
- ObservableObjectBase.OnPropertyChanged(string)
- ObservableObjectBase.OnPropertyChanged(PropertyChangedEventArgs)
- ObservableObjectBase.OnPropertyChanging(string)
- ObservableObjectBase.OnPropertyChanging(PropertyChangingEventArgs)
- ObservableObjectBase.SetProperty<T>(ref T, T, string)
- ObservableObjectBase.PropertyChanged
- ObservableObjectBase.PropertyChanging
- object.GetType()
- object.MemberwiseClone()
- object.ToString()
- object.Equals(object)
- object.Equals(object, object)
- object.ReferenceEquals(object, object)
- object.GetHashCode()