Check for Contained Data Type

Checks whether a variant contains the data type you specify.

connector_pane_image
datatype_icon

variant

Variant data from which you want to retrieve data type information.

datatype_icon

data type to find

Data type you want to find in the variant.

datatype_icon

check inside refnums

A Boolean value that determines whether this node searches any refnums in the variant for the specified data type.

TrueThis node searches refnums in the variant for the specified data type.
FalseThis node does not search for the specified data type inside refnums.

Default: False

datatype_icon

error in

Error conditions that occur before this node runs.

The node responds to this input according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
13781378
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Default: No error

datatype_icon

LabVIEW class qualified name

Specific class you want to find in the variant. You must set data type to find to Encapsulated to use this input.

If you search for a class instance by setting data type to find to Encapsulated, but leave this input empty, contains data type to find? returns True when the variant contains any classes.

datatype_icon

contains data type to find?

A Boolean value that indicates whether a variant contains the data type you want to find. This node also searches the data types of cluster or array elements.

TrueThe variant contains data type to find.
FalseThe variant does not contain data type to find.
datatype_icon

error out

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
13781378
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.