App.AddFieldFromExpressionAsync(T) Method (String, String, Func(Response, T), String)

App AddFieldFromExpressionAsync T Method (String, String, Func Response, T , String)

Qlik Sense .NET SDK - API Reference

Adds a field on the fly.

The field is added in the database model but the change is not persistent. If the app is closed, the field added on the fly does no longer exist.

Namespace: Qlik.Engine
Assembly: Qlik.Engine (in Qlik.Engine.dll) Version: 1.0.1.0 (1.0.1.0)

Syntax

C++

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public Task<T> AddFieldFromExpressionAsync<T>(
	string name,
	string expr,
	Func<Response, T> onResult,
	string userHandle = null
)

public Task<T> AddFieldFromExpressionAsync<T>(
	string name,
	string expr,
	Func<Response, T> onResult,
	string userHandle = null
)

Public Function AddFieldFromExpressionAsync(Of T) ( 
	name As String,
	expr As String,
	onResult As Func(Of Response, T),
	Optional userHandle As String = Nothing
) As Task(Of T)

Public Function AddFieldFromExpressionAsync(Of T) ( 
	name As String,
	expr As String,
	onResult As Func(Of Response, T),
	Optional userHandle As String = Nothing
) As Task(Of T)

Parameters

name: Type: System String
Name of the field.

expr: Type: System String
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.

onResult: Type: System Func Response, T
Continuation function

userHandle (Optional): Type: System String
Handle identifier

Type Parameters

T

Return Value

Type:

Task T

Implements

IApp AddFieldFromExpressionAsync T (String, String, Func Response, T , String)