Reference > Script steps reference > Control script steps > Set Error Capture
Set Error Capture
Suppresses or enables normal FileMaker Pro alert messages.
See also 
Set Error Capture [<On/Off>]
On suppresses FileMaker Pro alert messages and some dialog boxes. If the error result is 100 or 803, then certain standard file dialog boxes are suppressed, such as the Open File dialog box.
Off re-enables the alert messages.
Where the script step runs 
FileMaker Pro 
FileMaker Server 
FileMaker Go 
Custom Web Publishing 
FileMaker WebDirect 
Runtime solution 
Originated in 
FileMaker Pro 6.0 or earlier
Use this script step to suppress normal FileMaker alert messages caused by subsequent script steps so that your script can handle errors instead. It is important that you anticipate as many problems as possible and include clear instructions for what to do for an error condition.
By using Get(LastError) function with certain control script steps, you can check whether the previous script step returned an error and take the appropriate action.
Use Get (LastError) immediately after the script step you intend to test; a successful intervening step may clear the error code you were intending to capture.
When Set Error Capture is used in a script that contains a sub-script, errors from the sub-script are captured as well.
Server-side scripts and scripts performed via Custom Web Publishing always run as if Set Error Capture were set to On. See About running scripts on FileMaker Server.
Example 1 
Performs a find and suppresses the error dialog box if no records were found.
Set Error Capture [On]
Perform Find [Restore]
Example 2 
Performs a find. If no errors occur, sorts records. If no find criteria were specified, shows all records. If no records match the find request, displays a custom dialog box.
Set Error Capture [On]
Perform Find [Restore]
If [Get ( LastError ) = 0]
Sort Records [Restore; With dialog: Off]
Else If [Get ( LastError ) = 400]
Show All Records
Else If [Get ( LastError ) = 401]
Show Custom Dialog ["Find"; "No records were found."]
End If
Related topics 
Script steps reference (alphabetical list)
Script steps reference (category list)