UOM.UpdateFormula Method

public void UpdateFormula(
	UOM refUOM,
	string fromFormula,
	string toFormula
)

Public Sub UpdateFormula ( 
	refUOM As UOM,
	fromFormula As String,
	toFormula As String
)

Dim instance As UOM
Dim refUOM As UOM
Dim fromFormula As String
Dim toFormula As String

instance.UpdateFormula(refUOM, fromFormula, 
	toFormula)

public:
void UpdateFormula(
	UOM^ refUOM, 
	String^ fromFormula, 
	String^ toFormula
)

member UpdateFormula : 
        refUOM : UOM * 
        fromFormula : string * 
        toFormula : string -> unit 

Parameters

refUOM

Type: OSIsoft.AF.UnitsOfMeasureUOM
The reference unit of measure for this UOM conversion. This UOM must belong to the same UOM class and not create any circular references.

fromFormula

Type: SystemString
The formula to apply to the reference UOM to obtain this UOM. The maximum length of this parameter is 100 characters.

toFormula

Type: SystemString
The formula to apply to this UOM to obtain the reference UOM. The maximum length of this parameter is 100 characters.

This method replaces the conversion formulas for this UOM. When possible, use the standard factor and offset conversions instead of formula-based conversions. You need to enter conversion formulas for converting both from and to the reference unit. These formulas must be reciprocals.

The formulas are written in terms of the UOM abbreviation (see the example below), and adhere to C# evaluation rules. If either of the abbreviations are not valid C# variable names, you must enclose them in brackets. Since C# is used to evaluate the expression, you can invoke standard .NET static methods such as Math.Log10 within the expression.

AFSDK

Reference