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IAppAddFieldFromExpressionAsyncT Method (String, String, FuncResponse, T, AsyncHandle)

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: 1.1.0.0 (1.1.0.0)
Syntax
Task<T> AddFieldFromExpressionAsync<T>(
	string name,
	string expr,
	Func<Response, T> onResult,
	AsyncHandle asyncHandle = null
)

Parameters

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.
onResult
Type: SystemFuncResponse, T
Continuation function
asyncHandle (Optional)
Type: Qlik.EngineAsyncHandle
Handle to asyncronous method request

Type Parameters

T

Return Value

Type: TaskT
See Also