App.AddFieldFromExpressionAsync Method (String, String)

AppAddFieldFromExpressionAsync Method (String, String)

Adds a field on the fly.

The expression of a field on the fly is persisted but not its values.

Namespace: Qlik.Engine
Assembly: Qlik.Engine (in Qlik.Engine.dll) Version: 2.1.0.0+Build:7.origin/release/ms13

Syntax

public Task<bool> AddFieldFromExpressionAsync(
	string name,
	string expr
)

Public Function AddFieldFromExpressionAsync ( 
	name As String,
	expr As String
) As Task(Of Boolean)

name: Type: SystemString
Name of the field.
expr: Type: SystemString
Expression value. It is not possible to use all aggregation functions. For example, you cannot add a field on the fly with an expression that uses the Sum or Count aggregation functions.