Home Support NI Product Manuals LabVIEW Communications System Design Suite 5.0 Manual

Table Of Contents

Get Type Information (G Dataflow)

Download Manual | Offline Viewer Required
Version:
Last Modified: August 21, 2019

Retrieves data type information from a variant.

connector_pane_image
datatype_icon

variant

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

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
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

type

Data type stored in the variant.

datatype_icon

G Type?

A Boolean value that indicates whether the data type stored in the variant is an instance of a G type.

True

The data type stored in the variant is an instance of a G type.

False

The data type stored in the variant is not an instance of a G type.

An Alternative Way to Detect a G Type

You also can use the Is or Contains G Type? node to determine whether the data type in the variant is an instance of a G type or contains a data type that is an instance of a G type. However, the Is or Contains G Type? node does not return the G type name.

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
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.
datatype_icon

G Type name

Name of the G type. This output returns an empty string if the data type stored in the variant is not an instance of a G type.

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported

Web Server: Not supported in VIs that run in a web application

Recently Viewed Topics