IBufferGraph.MapUpToSnapshot Method (SnapshotSpan, SpanTrackingMode, ITextSnapshot)

 

Maps a span in the current snapshot of a buffer that is a member of the buffer graph to a sequence of spans in a snapshot of a designated buffer.

Namespace:   Microsoft.VisualStudio.Text.Projection
Assembly:  Microsoft.VisualStudio.Text.Data (in Microsoft.VisualStudio.Text.Data.dll)

NormalizedSnapshotSpanCollection MapUpToSnapshot(
	SnapshotSpan span,
	SpanTrackingMode trackingMode,
	ITextSnapshot targetSnapshot
)

Parameters

span
Type: Microsoft.VisualStudio.Text.SnapshotSpan

A span in some buffer in the IBufferGraph.

trackingMode
Type: Microsoft.VisualStudio.Text.SpanTrackingMode

How span is tracked to the current snapshot if necessary.

targetSnapshot
Type: Microsoft.VisualStudio.Text.ITextSnapshot

The snapshot to which to map.

Return Value

Type: Microsoft.VisualStudio.Text.NormalizedSnapshotSpanCollection

A collection of zero or more snapshot spans in targetSnapshot to which the span maps using this graph.

Exception Condition
ArgumentNullException

span.Snapshot is null.

ArgumentOutOfRangeException

trackingMode is not a valid SpanTrackingMode.

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