Formats string path, enumerated type, time stamp, Boolean, or numeric data as text.
Use the Format Into File function to format data as text and write the text to a file.

![]() |
format string specifies how to convert the input arguments into resulting string.
Defaults match the data type of the input arguments. Formatting a time stamp as anything other than time returns an error. Right-click the function and select Edit Format String from the shortcut menu to create and edit the format string. This input accepts a maximum of 255 characters. |
||||||
![]() |
initial string and any arguments appended to it form the resulting string. | ||||||
![]() |
error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
| ||||||
![]() |
input 1..n specifies the input parameters to be converted. Each input can be a string path, enumerated type, time stamp, or any numeric data type. You cannot use arrays and clusters with this function. | ||||||
![]() |
resulting string contains the concatenation of initial string and the formatted output. | ||||||
![]() |
error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
|
Increase the number of parameters by right-clicking the function and selecting Add Parameter from the shortcut menu or by resizing the function.
![]() | Note If an error occurs, source contains a string of the form Format Into String (arg n), where n is the first argument for which the error occurred. |
If you wire a block diagram constant string to format string, LabVIEW uses format string to determine the number of outputs and the data type of each output at compile time. If the types you wire to the outputs do not match the types determined by format string, you must change the output types before the VI can run.