14 references to IsNull
PresentationFramework (14)
src\Framework\MS\Internal\Text\DynamicPropertyReader.cs (1)
261Debug.Assert(!position.IsNull);
src\Framework\MS\Internal\Text\TextProperties.cs (1)
160if (!position.IsNull)
src\Framework\System\Windows\Documents\DocumentSequenceTextContainer.cs (1)
1035if (!textPosition.IsNull)
src\Framework\System\Windows\Documents\FixedDocument.cs (3)
1121if (highlightTransitionPosition.IsNull) 1148Debug.Assert(!highlightTransitionPosition.IsNull, "Highlight start not followed by highlight end!"); 1164Debug.Assert(!highlightTransitionPosition.IsNull, "Highlight start not followed by highlight end!");
src\Framework\System\Windows\Documents\Highlights.cs (5)
138if (!changePosition.IsNull) 140if (closestChangePosition.IsNull) 197if (changePosition.IsNull || 365if (highlightTransitionPosition.IsNull) 371Invariant.Assert(!highlightTransitionPosition.IsNull, "Highlight start not followed by highlight end!");
src\Framework\System\Windows\Documents\Speller.cs (2)
262while (!pointer.IsNull) 1415if (!nextErrorTransition.IsNull)
src\Framework\System\Windows\Documents\SpellerStatusTable.cs (1)
237Invariant.Assert(transitionPosition.IsNull || textPosition.CompareTo(transitionPosition) != 0);