Class BarcodeObject

Represents a barcode object. Represents a barcode object.

Inheritance
System.Object
Base
ComponentBase
ReportComponentBase
BarcodeObject
Implements
Inherited Members
Namespace: FastReport.Barcode
Assembly: FastReport.OpenSource.dll
Syntax
public class BarcodeObject : ReportComponentBase, IFRSerializable
Remarks

The instance of this class represents a barcode. Here are some common actions that can be performed with this object:

  • To select the type of barcode, use the Barcode property.
  • To specify a static barcode data, use the Text property. You also may use the DataColumn or Expression properties to specify dynamic value for a barcode.
  • To set a barcode orientation, use the Angle property.
  • To specify the size of barcode, set the AutoSize property to true and use the Zoom property to zoom the barcode. If AutoSize property is set to false, you need to specify the size using the Width and Height properties.
Examples

This example shows how to configure the BarcodeObject to display PDF417 barcode.

BarcodeObject barcode;
...
barcode.Barcode = new BarcodePDF417();
(barcode.Barcode as BarcodePDF417).CompactionMode = CompactionMode.Text;

Constructors

BarcodeObject()

Initializes a new instance of the BarcodeObject class with default settings.

Declaration
public BarcodeObject()

Properties

AllowExpressions

Enable or disable of using an expression in Text

Declaration
public bool AllowExpressions { get; set; }
Property Value
Type Description
System.Boolean

Angle

Gets or sets the angle of barcode, in degrees.

Declaration
public int Angle { get; set; }
Property Value
Type Description
System.Int32

AsBitmap

Gets or sets values for forced use of a bitmap image instead of a vector

Declaration
public bool AsBitmap { get; set; }
Property Value
Type Description
System.Boolean

AutoSize

Gets or sets a value that determines whether the barcode should handle its width automatically.

Declaration
public bool AutoSize { get; set; }
Property Value
Type Description
System.Boolean

Barcode

Gets or sets the barcode type.

Declaration
public BarcodeBase Barcode { get; set; }
Property Value
Type Description
BarcodeBase

Brackets

Gets or sets brackets for using in expressions

Declaration
public string Brackets { get; set; }
Property Value
Type Description
System.String

DataColumn

Gets or sets a data column name bound to this control.

Declaration
public string DataColumn { get; set; }
Property Value
Type Description
System.String
Remarks

Value must be in the form "Datasource.Column".

Expression

Gets or sets an expression that contains the barcode data.

Declaration
public string Expression { get; set; }
Property Value
Type Description
System.String

HideIfNoData

Gets or sets a value that determines whether it is necessary to hide the object if the barcode data is empty.

Declaration
public bool HideIfNoData { get; set; }
Property Value
Type Description
System.Boolean

NoDataText

Gets or sets the text that will be displayed if the barcode data is empty.

Declaration
public string NoDataText { get; set; }
Property Value
Type Description
System.String

Padding

Gets or sets padding within the BarcodeObject.

Declaration
public Padding Padding { get; set; }
Property Value
Type Description
Padding

ShowText

Gets or sets a value that indicates if the barcode should display a human-readable text.

Declaration
public bool ShowText { get; set; }
Property Value
Type Description
System.Boolean

SymbologyName

Gets or sets the symbology name.

Declaration
public string SymbologyName { get; set; }
Property Value
Type Description
System.String
Remarks

The following symbology names are supported:

  • "2/5 Interleaved"
  • "2/5 Industrial"
  • "2/5 Matrix"
  • "Codabar"
  • "Code128"
  • "Code39"
  • "Code39 Extended"
  • "Code93"
  • "Code93 Extended"
  • "EAN8"
  • "EAN13"
  • "MSI"
  • "PostNet"
  • "UPC-A"
  • "UPC-E0"
  • "UPC-E1"
  • "Supplement 2"
  • "Supplement 5"
  • "PDF417"
  • "Datamatrix"
  • "QRCode"
Examples
barcode.SymbologyName = "PDF417";
(barcode.Barcode as BarcodePDF417).CompactionMode = CompactionMode.Text;

Text

Gets or sets the barcode data.

Declaration
public string Text { get; set; }
Property Value
Type Description
System.String

Zoom

Gets or sets a zoom of the barcode.

Declaration
public float Zoom { get; set; }
Property Value
Type Description
System.Single

Methods

Assign(Base)

Copies the contents of another, similar object.

Declaration
public override void Assign(Base source)
Parameters
Type Name Description
Base source

Source object to copy the contents from.
Overrides
Remarks

Call Assign to copy the properties from another object of the same type. The standard form of a call to Assign is

destination.Assign(source);

which tells the destination object to copy the contents of the source object to itself. In this method, all child objects are ignored. If you want to copy child objects, use the AssignAll(Base) method.

See Also

Draw(FRPaintEventArgs)

Declaration
public override void Draw(FRPaintEventArgs e)
Parameters
Type Name Description
FRPaintEventArgs e
Overrides

GetData()

Gets the data from a datasource that the object is connected to.

Declaration
public override void GetData()
Overrides
Remarks

This method is called by the report engine before processing the object.

Do not call it directly. You may override it if you are developing a new FastReport component. In this method you should get the data from a datasource that the object is connected to.

GetExpressions()

Gets all expressions contained in the object.

Declaration
public override string[] GetExpressions()
Returns
Type Description
System.String[]

Array of expressions or null if object contains no expressions.
Overrides
Remarks

Do not call this method directly. You may override it if you are developing a new component for FastReport.

This method is called by FastReport each time before run a report. FastReport do this to collect all expressions and compile them. For example, GetExpressions method of the TextObject class parses the text and returns all expressions found in the text.

RestoreState()

Restores the object's state after printing it.

Declaration
public override void RestoreState()
Overrides
Remarks

This method is called by the report engine after processing the object.

Do not call it directly. You may override it if you are developing a new FastReport component. In this method you should restore the object properties that were saved by the SaveState() method.

SaveState()

Saves the object's state before printing it.

Declaration
public override void SaveState()
Overrides
Remarks

This method is called by the report engine before processing the object.

Do not call it directly. You may override it if you are developing a new FastReport component. In this method you should save any object properties that may be changed during the object printing. The standard implementation saves the object's bounds, visibility, bookmark and hyperlink.

Serialize(FRWriter)

Serializes the object.

Declaration
public override void Serialize(FRWriter writer)
Parameters
Type Name Description
FRWriter writer

Writer object.
Overrides
Remarks

Do not call this method directly. You should override it if you are developing a new component for FastReport.

This method is called when the object needs to save the state. It may happen when:

  • saving the report to the file or stream;
  • saving the report to the designer's undo buffer;
  • assigning the object to another object using the Assign(Base) or AssignAll(Base) methods;
  • saving the object to the designer's clipboard;
  • saving the object to the preview (when run a report).

UpdateAutoSize()

Declaration
public void UpdateAutoSize()

Implements