Class ExpressionExtensions

Extension methods for RadExpression that provide convenient value extraction, type conversion, and validation operations for use throughout formula evaluation.

Inheritance

System.Object

ExpressionExtensions

Inherited Members

System.Object.ToString()

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

Namespace: Telerik.Windows.Documents.Spreadsheet.Expressions

Assembly: Telerik.Windows.Documents.Spreadsheet.dll

Syntax

public static class ExpressionExtensions

Methods

GetValueAsConstantExpression(RadExpression)

Evaluates the expression and returns its value as a constant, extracting the first element if the result is an array.

Declaration

public static ConstantExpression GetValueAsConstantExpression(this RadExpression expression)

Parameters

RadExpression expression The expression.

Returns

ConstantExpression The ConstantExpression result.

IntegerValue(RadExpression)

Extracts the integer value from a numeric expression, throwing an exception if the expression is not a NumberExpression.

Declaration

public static int IntegerValue(this RadExpression expression)

Parameters

RadExpression expression The expression.

Returns

System.Int32 The value as integer.

Exceptions

System.ArgumentNullException Thrown when expression is not NumberExpression.

IsValidFunctionOrCellReferenceNamePart(Char)

Tests whether a character is valid within a function name or cell reference during formula parsing.

Declaration

public static bool IsValidFunctionOrCellReferenceNamePart(this char character)

Parameters

System.Char character The character.

Returns

System.Boolean True if valid, otherwise false.

NumberValue(RadExpression)

Extracts the numeric value from an expression, returning 0 if the expression is not a NumberExpression.

Declaration

public static double NumberValue(this RadExpression expression)

Parameters

RadExpression expression The expression.

Returns

System.Double The number value as double. If the expression is not NumberExpression returns 0.

ToBooleanExpression(Boolean)

Converts a Boolean value to the corresponding BooleanExpression singleton (True or False).

Declaration

public static BooleanExpression ToBooleanExpression(this bool value)

Parameters

System.Boolean value The value.

Returns

BooleanExpression The result as BooleanExpression.

ToCellRange(CellReferenceRange)

Converts a CellReferenceRange to the equivalent CellRange with resolved row and column indexes.

Declaration

public static CellRange ToCellRange(this CellReferenceRange cellReferenceRange)

Parameters

CellReferenceRange cellReferenceRange The cell reference range.

Returns

CellRange The cell range.