AppAddFieldFromExpressionAsync Method (String, String, AsyncHandle) |
Adds a field on the fly.
The expression of a field on the fly is persisted but not its values.
Namespace: Qlik.EngineAssembly: Qlik.Engine (in Qlik.Engine.dll) Version: 1.1.0.0 (1.1.0.0)
Syntaxpublic Task<bool> AddFieldFromExpressionAsync(
string name,
string expr,
AsyncHandle asyncHandle = null
)
Public Function AddFieldFromExpressionAsync (
name As String,
expr As String,
Optional asyncHandle As AsyncHandle = Nothing
) As Task(Of Boolean)
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. - asyncHandle (Optional)
- Type: Qlik.EngineAsyncHandle
Handle to asyncronous method request
Return Value
Type:
TaskBooleanImplements
IAppAddFieldFromExpressionAsync(String, String, AsyncHandle)
See Also