Class FunctionPtg

This class represents function token of a formula.

Inheritance
System.Object
Ptg
OperationPtg
FunctionPtg
FunctionVarPtg
Implements
System.ICloneable
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
Namespace: Syncfusion.XlsIO.Parser.Biff_Records.Formula
Assembly: Syncfusion.XlsIO.Base.dll
Syntax
[Token(FormulaToken.tFunction1)]
[Token(FormulaToken.tFunction2)]
[Token(FormulaToken.tFunction3)]
[CLSCompliant(false)]
public class FunctionPtg : OperationPtg, ICloneable

Constructors

FunctionPtg()

Default constructor

Declaration
public FunctionPtg()

FunctionPtg(ExcelFunction)

Constructs token by function index.

Declaration
public FunctionPtg(ExcelFunction index)
Parameters
Type Name Description
ExcelFunction index

Function index.

FunctionPtg(DataProvider, Int32, ExcelVersion)

Constructs token using data from byte array.

Declaration
public FunctionPtg(DataProvider provider, int offset, ExcelVersion version)
Parameters
Type Name Description
DataProvider provider

Object that provides access to the data.
System.Int32 offset

Offset to token data.
ExcelVersion version

Excel version that was used to infill data provider.

FunctionPtg(String)

Constructs function token by function name.

Declaration
public FunctionPtg(string strFunctionName)
Parameters
Type Name Description
System.String strFunctionName

Valid function name.

Fields

OperandsDelimiter

Delimiter between function arguments.

Declaration
public const string OperandsDelimiter = ","
Field Value
Type
System.String

Properties

Attributes

Array of all token attributes applied to the object. This property is used to increase performance.

Declaration
protected override TokenAttribute[] Attributes { get; }
Property Value
Type
TokenAttribute[]
Overrides

FunctionIndex

Returns built-in function index.

Declaration
public ExcelFunction FunctionIndex { get; set; }
Property Value
Type
ExcelFunction

NumberOfArguments

Number of function arguments.

Declaration
public byte NumberOfArguments { get; set; }
Property Value
Type
System.Byte

OperationType

Read-only. Type of operation (TYPE_FUNCTION for all functions).

Declaration
public override TOperation OperationType { get; }
Property Value
Type
TOperation
Overrides

Methods

GetOperands(String, ref Int32, FormulaUtil)

Gets operands from string and returns array of string representation of the operands.

Declaration
public override string[] GetOperands(string strFormula, ref int index, FormulaUtil formulaParser)
Parameters
Type Name Description
System.String strFormula

Formula string.
System.Int32 index

Index of the function in the formula string.
FormulaUtil formulaParser

Formula parser.
Returns
Type Description
System.String[]

Array of strings that contains function operands.
Overrides

GetOperands(String, ref Int32, Boolean, FormulaUtil)

Gets operands from string and returns array of string representation of the operands.

Declaration
protected string[] GetOperands(string strFormula, ref int index, bool checkParamCount, FormulaUtil formulaParser)
Parameters
Type Name Description
System.String strFormula

Formula string.
System.Int32 index

Index to built-in function.
System.Boolean checkParamCount

True if function should check operands count.
FormulaUtil formulaParser

Formula parser.
Returns
Type Description
System.String[]

Array of strings that contain function operands.
Exceptions
Type Condition
System.ArgumentException

if checkParamCount = True and actual parameter count does not equal expected

GetSize(ExcelVersion)

Read-only. Size of the token.

Declaration
public override int GetSize(ExcelVersion version)
Parameters
Type Name Description
ExcelVersion version
Returns
Type
System.Int32
Overrides

IndexToCode(Int32)

Declaration
public static FormulaToken IndexToCode(int index)
Parameters
Type Name Description
System.Int32 index
Returns
Type
FormulaToken

InfillPTG(DataProvider, ref Int32, ExcelVersion)

Infill PTG structure.

Declaration
public override void InfillPTG(DataProvider provider, ref int offset, ExcelVersion version)
Parameters
Type Name Description
DataProvider provider

Represents storage.
System.Int32 offset

Offset in storage.
ExcelVersion version

Excel version that was used to infill data provider.
Overrides

PushResultToStack(FormulaUtil, Stack<Object>, Boolean)

Converts the operation and its operands to the string. Gets all needed operands from the Stack parameter and pushes the result into the Stack.

Declaration
public override void PushResultToStack(FormulaUtil formulaUtil, Stack<object> operands, bool isForSerialization)
Parameters
Type Name Description
FormulaUtil formulaUtil

Object used for formula parsing.
System.Collections.Generic.Stack<System.Object> operands

Stack that contains all operands and receives result of the operation.
System.Boolean isForSerialization
Overrides

ToByteArray(ExcelVersion)

Converts token to byte array.

Declaration
public override byte[] ToByteArray(ExcelVersion version)
Parameters
Type Name Description
ExcelVersion version
Returns
Type Description
System.Byte[]

Array of bytes representing this token.
Overrides

ToString(FormulaUtil, Int32, Int32, Boolean, NumberFormatInfo, Boolean)

Converts token to a string.

Declaration
public override string ToString(FormulaUtil formulaUtil, int iRow, int iColumn, bool bR1C1, NumberFormatInfo numberFormat, bool isForSerialization)
Parameters
Type Name Description
FormulaUtil formulaUtil

Formula util.
System.Int32 iRow

Zero-based row index of the cell that contains this token.
System.Int32 iColumn

Zero-based row index of the cell that contains this token.
System.Boolean bR1C1

Indicates whether R1C1 notation should be used.
System.Globalization.NumberFormatInfo numberFormat
System.Boolean isForSerialization
Returns
Type Description
System.String

String representation of this token.
Overrides

Implements

System.ICloneable