16 references to IsNull
PresentationFramework (16)
MS\Internal\Text\DynamicPropertyReader.cs (1)
251
Debug.Assert(!position.
IsNull
);
MS\Internal\Text\TextProperties.cs (1)
154
if (!position.
IsNull
)
System\Windows\Documents\DocumentSequenceTextContainer.cs (3)
664
if (highlightTransitionPosition.
IsNull
)
674
Invariant.Assert(!highlightTransitionPosition.
IsNull
, "Highlight start not followed by highlight end!");
1009
if (!textPosition.
IsNull
)
System\Windows\Documents\FixedDocument.cs (3)
1075
if (highlightTransitionPosition.
IsNull
)
1102
Debug.Assert(!highlightTransitionPosition.
IsNull
, "Highlight start not followed by highlight end!");
1118
Debug.Assert(!highlightTransitionPosition.
IsNull
, "Highlight start not followed by highlight end!");
System\Windows\Documents\Highlights.cs (5)
130
if (!changePosition.
IsNull
)
132
if (closestChangePosition.
IsNull
)
189
if (changePosition.
IsNull
||
357
if (highlightTransitionPosition.
IsNull
)
363
Invariant.Assert(!highlightTransitionPosition.
IsNull
, "Highlight start not followed by highlight end!");
System\Windows\Documents\Speller.cs (2)
233
while (!pointer.
IsNull
)
1327
if (!nextErrorTransition.
IsNull
)
System\Windows\Documents\SpellerStatusTable.cs (1)
234
Invariant.Assert(transitionPosition.
IsNull
|| textPosition.CompareTo(transitionPosition) != 0);