Error

Function Error(message, url, urlText)

Reports an evaluation-time error, displaying the indicated «message» to the end user in a dialog box and ending the current computation.

If the expression in a Check Attribute calls Error(), it displays the error message as a warning dialog, instead of the default failed-check message that otherwise appears when the Check Attribute evaluates to False (0).

The optional «url» and «urlText» can be specified if you want to include a hyperlink on the error's message box. For example:

Error( "The matrix to MapKernel must be positive definite",

url: "https://mywebsite.com/Details/Using_MapKernel.html",

urlText:"Info on this error")

Examples

If not IsNumber(x) Then Error("Something is wrong. x is not numeric.");

See Also

• Error
• Error Messages
• Error Message Types
• Check Attribute
• MsgBox