AF SDK Reference

AFTimeSpan.IsNegative Property

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AFTimeSpan.IsNegative Property

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Last UpdatedJan 12, 2026
2 minute read

Indicates if the current AFTimeSpan represents a negative span.

Namespace: OSIsoft.AF.Time
Assembly: OSIsoft.AFSDK (in OSIsoft.AFSDK.dll) Version: 3.2.0.7

Syntax

public bool IsNegative { get; }

Public ReadOnly Property IsNegative As Boolean
	Get

Dim instance As AFTimeSpan
Dim value As Boolean

value = instance.IsNegative

public:
property bool IsNegative {
	bool get ();
}

member IsNegative : bool with get

Property Value

Type: Boolean
Returns if the current AFTimeSpan represents a negative span. Otherwise, returns .

Remarks

A AFTimeSpan determines whether or not it is negative by the sign of the most significant interval specified. For example, "+3d-30m" would represent a positive span but "-3d+30m" would represent a negative span.

AF SDK Reference