IBufferGraph.MapDownToInsertionPoint Method
Maps a position in some buffer in the graph to a position in a matching buffer that is lower in the graph and to which an insertion would be routed. Source buffers are considered to be lower than the projection buffers that consume them.
Namespace: Microsoft.VisualStudio.Text.Projection
Assembly: Microsoft.VisualStudio.Text.Data (in Microsoft.VisualStudio.Text.Data.dll)
Syntax
'宣告
Function MapDownToInsertionPoint ( _
position As SnapshotPoint, _
trackingMode As PointTrackingMode, _
match As Predicate(Of ITextSnapshot) _
) As Nullable(Of SnapshotPoint)
Nullable<SnapshotPoint> MapDownToInsertionPoint(
SnapshotPoint position,
PointTrackingMode trackingMode,
Predicate<ITextSnapshot> match
)
Nullable<SnapshotPoint> MapDownToInsertionPoint(
SnapshotPoint position,
PointTrackingMode trackingMode,
Predicate<ITextSnapshot^>^ match
)
abstract MapDownToInsertionPoint :
position:SnapshotPoint *
trackingMode:PointTrackingMode *
match:Predicate<ITextSnapshot> -> Nullable<SnapshotPoint>
function MapDownToInsertionPoint(
position : SnapshotPoint,
trackingMode : PointTrackingMode,
match : Predicate<ITextSnapshot>
) : Nullable<SnapshotPoint>
Parameters
- position
Type: Microsoft.VisualStudio.Text.SnapshotPoint
The position in a buffer in the graph.
- trackingMode
Type: Microsoft.VisualStudio.Text.PointTrackingMode
How position is tracked to the current snapshot if necessary.
- match
Type: System.Predicate<ITextSnapshot>
The predicate that identifies the target buffer.
Return Value
Type: System.Nullable<SnapshotPoint>
A point in a snapshot of some source buffer.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | position.Snapshot or match is nulla null reference (Nothing in Visual Basic). |
| ArgumentOutOfRangeException | trackingMode is not a valid PointTrackingMode. |
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.