InvalidValue class: Difference between revisions

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<tr><th>%invalidValue</th>
<tr><th>%invalidValue</th>
<td>A reference to an instance of an <var>InvalidValue</var> object. </td></tr>
<td>A reference to an instance of an <var>InvalidValue</var> object. </td></tr>
<tr><th><var>%(InvalidValue)</var></th>
<tr><th><var>[%(InvalidValue)]</var></th>
<td>The class name in parentheses denotes a <var>[[Notation conventions for methods#Constructors|Constructor]]</var>. See [[#Usage notes|"Usage notes"]], below, for more information about invoking an <var>InvalidValue</var> <var>Constructor</var>.</td></tr>
<td>The class name in parentheses denotes a <var>[[Notation conventions for methods#Constructors|Constructor]]</var>. See [[#Usage notes|"Usage notes"]], below, for more information about invoking an <var>InvalidValue</var> <var>Constructor</var>.</td></tr>
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Revision as of 15:58, 25 August 2011


The InvalidValue exception class describes an exception associated with not finding an expectedvalue. This exception class has no properties. It is simply a notification that a valid attempt found no values that matched the given string.

To produce an InvalidValue exception yourself, you typically use a User Language Throw statement with an InvalidValue New constructor. This statement must be issued from within a method, and it can only be caught by the code that calls the method. For example, the following statement throws an InvalidValue exception:

throw %(invalidValue):new

Remember that you catch an exception with the Catch statement; if an exception condition occurs outside a Catch for it, the request is cancelled.

The InvalidValue class is available as of version 7.8.

The InvalidValue methods


The following are the available InvalidValue class methods.

MethodDescription
NewCreate a new InvalidValue object

See also

The methods in the class are described in the subsections that follow. In addition:


New constructor

Create a new InvalidValue object (InvalidValue class)

[Introduced in Sirius Mods 7.8]

This Constructor generates an instance of an InvalidValue exception. The New method format follows:

Syntax

%invalidValue = [%(InvalidValue):]New

Syntax terms

%invalidValue A reference to an instance of an InvalidValue object.
[%(InvalidValue)] The class name in parentheses denotes a Constructor. See "Usage notes", below, for more information about invoking an InvalidValue Constructor.

Usage notes

  • As described in "Using New or other Constructors", New can be invoked with no object, with an explicit class name, or with an object variable in the class, even if that object is Null:

    %invalid = new %invalid = %(InvalidValue):new %invalid = %invalid:new