IReadOnlyRegion Interface
Tracks a possibly empty read-only region of text.
Namespace: Microsoft.VisualStudio.Text
Assembly: Microsoft.VisualStudio.Text.Data (in Microsoft.VisualStudio.Text.Data.dll)
Syntax
'宣告
Public Interface IReadOnlyRegion
public interface IReadOnlyRegion
public interface class IReadOnlyRegion
type IReadOnlyRegion = interface end
public interface IReadOnlyRegion
The IReadOnlyRegion type exposes the following members.
Properties
| Name | Description | |
|---|---|---|
.gif "Public property") |
EdgeInsertionMode | The edge insertion behavior of the read-only region. |
|
QueryCallback | The delegate that notifies the read-only region of read-only checks and edits. |
|
Span | The span of text marked read-only by this region. |
Top
Remarks
Read-only regions prevent edits only on their owning buffer, not on other buffers that may be associated with them.
The text in a read-only region is not necessarily immutable; a read-only region created on a projection buffer makes that region read-only to clients of the projection buffer but does not affect the source buffers for that text.
A zero-length read-only region that prohibits edge insertions prevents insertions only at its starting position, but allows deletions and modifications that span that position.
A zero-length read-only region that does not prohibit edge insertions does not prevent any kind of insertion.