16 references to IsNull
PresentationFramework (16)
MS\Internal\Text\DynamicPropertyReader.cs (1)
258
Debug.Assert(!position.
IsNull
);
MS\Internal\Text\TextProperties.cs (1)
157
if (!position.
IsNull
)
System\Windows\Documents\DocumentSequenceTextContainer.cs (3)
682
if (highlightTransitionPosition.
IsNull
)
692
Invariant.Assert(!highlightTransitionPosition.
IsNull
, "Highlight start not followed by highlight end!");
1027
if (!textPosition.
IsNull
)
System\Windows\Documents\FixedDocument.cs (3)
1085
if (highlightTransitionPosition.
IsNull
)
1112
Debug.Assert(!highlightTransitionPosition.
IsNull
, "Highlight start not followed by highlight end!");
1128
Debug.Assert(!highlightTransitionPosition.
IsNull
, "Highlight start not followed by highlight end!");
System\Windows\Documents\Highlights.cs (5)
132
if (!changePosition.
IsNull
)
134
if (closestChangePosition.
IsNull
)
191
if (changePosition.
IsNull
||
359
if (highlightTransitionPosition.
IsNull
)
365
Invariant.Assert(!highlightTransitionPosition.
IsNull
, "Highlight start not followed by highlight end!");
System\Windows\Documents\Speller.cs (2)
251
while (!pointer.
IsNull
)
1350
if (!nextErrorTransition.
IsNull
)
System\Windows\Documents\SpellerStatusTable.cs (1)
237
Invariant.Assert(transitionPosition.
IsNull
|| textPosition.CompareTo(transitionPosition) != 0);