controlNull: Difference between revisions

Revision as of 11:26, 12 May 2022

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Description:: A non-existing Control. To compare non-existent objects use isNull or isEqualTo (see examples).
Groups:: GUI Control

Example 1:: if (_myCtrl isEqualTo controllNull) then { hint "_myCtrl is null!"; };
Example 2:: controlNull == controlNull; // returns false isNull controlNull; // returns true controlNull isEqualTo controlNull; // returns true
Example 3:: str controlNull; // No control

See also:: displayNull grpNull locationNull objNull taskNull teamMemberNull scriptNull configNull typeName isNull

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@@ Line 26: / Line 26: @@
 |x1= <code>if (_myCtrl isEqualTo controllNull) then { hint "_myCtrl is null!"; };</code>
-|x2= <code>[[controlNull]] == [[controlNull]];			{{cc|returns [[false]]}}
+|x2= <code>[[controlNull]] == [[controlNull]];			// returns [[false]]
-[[isNull]] [[controlNull]];						{{cc|returns [[true]]}}
+[[isNull]] [[controlNull]];						// returns [[true]]
-[[controlNull]] [[isEqualTo]] [[controlNull]];		{{cc|returns [[true]]}}</code>
+[[controlNull]] [[isEqualTo]] [[controlNull]];		// returns [[true]]</code>
 |x3= <code>str controlNull; // No control</code>