Single Selection Widget (Invalid default)

This component is an extension of the Single Selection Widget node. It allows the definition of an invalid default value as the first of all possible choices that are provided via the input table. An invalid default value could be something such as "Please select...".

This enables workflow developers to build workflow logic based on whether a user has already made a selection or not which can be helpful to stop the workflow from executing compute-intensive parts during the launch of a Data App because valid default values are set.

Additionally, this component can be easily chained for use cases where the values of the second selection widget are dependend on the values of the first selection widget.

An example is available on the KNIME Hub.

Options

Last level?: Define whether this is the last Single Selection Widget (Invalid default) in a sequence. This option will disable the re-execution to be able to set up a Refresh Button widget so that following logic is not automatically executed.%%00010%%00010Note: This option is only needed if this component is used multiple times in a row.
Select column with possible values: Select the column with the possible values.
Level: Define the level of the options.%%00010Choose 0 if this is the first set of possible values.%%00010%%00010Note: This option is only needed if this component is used multiple times in a row
Invalid default value: Define the invalid default value
Label: Define the label for the Single Selection Widget.

Single Selection Widget (Invalid default)

Options

Input Ports

Output Ports

Nodes

Extensions

Links

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