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Len

Class

Implements the LEN function, which counts the total number of characters in a text string including spaces.

Definition

Namespace:Telerik.Documents.Spreadsheet.Expressions.Functions

Assembly:Telerik.Windows.Documents.Spreadsheet.dll

Syntax:

public class Len : StringsInFunction

Inheritance: objectFunctionBaseFunctionWithArgumentsFunctionWithSameTypeArguments<string>StringsInFunctionLen...

Inherited Members StringsInFunction.ArgumentConversionRulesFunctionWithSameTypeArguments<string>.EvaluateOverride(FunctionEvaluationContext<object>)FunctionWithArguments.EvaluateOverride(FunctionEvaluationContext<RadExpression>)FunctionWithArguments.EvaluateLiftedElement(FunctionEvaluationContext<RadExpression>, RadExpression[], int, int)FunctionBase.IsSpillingArgument(int, RadExpression)FunctionBase.Evaluate(FunctionEvaluationContext<RadExpression>)FunctionBase.IsArgumentNumberValid(int)...

Constructors

Len()

Initializes a new LEN function instance that counts characters in text strings.

public Len()

Fields

FunctionName

string

The name of the function.

public static readonly string FunctionName

Properties

FunctionInfo

Gets the function info.

public override FunctionInfo FunctionInfo { get; }

Property Value:

The function info as FunctionInfo.

Overrides: FunctionBase.FunctionInfo

When true, FunctionBase automatically evaluates this function element-wise over any multi-element array argument and returns a spilled array result. Override to true in pure scalar functions (e.g. ABS, LEN, MOD) where applying the function independently to each element of an input array is the correct dynamic-array behavior. Leave false (the default) for reducers.

public override bool LiftsOverArrays { get; }

Overrides: FunctionBase.LiftsOverArrays

Name

string

Gets the name of the function.

public override string Name { get; }

Property Value:

The name as String.

Overrides: FunctionBase.Name

Methods

EvaluateOverride(FunctionEvaluationContext<string>)

Virtual method evaluating the function with System.Object arguments array.

protected override RadExpression EvaluateOverride(FunctionEvaluationContext<string> context)

Parameters:contextFunctionEvaluationContext<string>

The context.

Returns:

RadExpression

Functions result as RadExpression.

Overrides: FunctionWithSameTypeArguments<string>.EvaluateOverride(FunctionEvaluationContext<string>)