Class
IsError

Tests whether a value is any error and returns TRUE for any error value including #N/A, FALSE otherwise.

Definition

Namespace:Telerik.Windows.Documents.Spreadsheet.Expressions.Functions

Assembly:Telerik.Windows.Documents.Spreadsheet.dll

Syntax:

cs-api-definition

public class IsError : FunctionBase

Inheritance: objectFunctionBaseIsError

Inherited Members FunctionBase.Evaluate(FunctionEvaluationContext<RadExpression>)FunctionBase.IsArgumentNumberValid(int)FunctionBase.ArgumentConversionRules

Constructors

IsError()

Initializes a new ISERROR function instance for testing whether values are any error type.

Declaration

cs-api-definition

public IsError()

Fields

FunctionName

The name of the function.

Declaration

cs-api-definition

public static readonly string FunctionName

Field Value

string

Properties

FunctionInfo

Gets metadata describing the function's category, parameters, and localization keys.

Declaration

cs-api-definition

public override FunctionInfo FunctionInfo { get; }

Property Value

FunctionInfo

The function info as FunctionInfo.

Overrides FunctionBase.FunctionInfo

Name

Gets the function name identifier used in formulas.

Declaration

cs-api-definition

public override string Name { get; }

Property Value

string

The name as String.

Overrides FunctionBase.Name

Methods

EvaluateOverride(FunctionEvaluationContext<RadExpression>)

Evaluates the function and returns TRUE if the argument is any error expression, FALSE otherwise.

Declaration

cs-api-definition

protected override RadExpression EvaluateOverride(FunctionEvaluationContext<RadExpression> context)

Parameters

context

FunctionEvaluationContext<RadExpression>

The context.

Returns

RadExpression

Function result as RadExpression.

Overrides FunctionBase.EvaluateOverride(FunctionEvaluationContext<RadExpression>)

ClassIsError

Class
IsError