ITextDocumentSnapshot Interface
Definition
Important
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Provides read access to an immutable version of a document in the file system, in memory in this process, or remoted from the host Visual Studio.
public interface ITextDocumentSnapshot : Microsoft.VisualStudio.Extensibility.Editor.IEditable<Microsoft.VisualStudio.Extensibility.Editor.ITextDocumentEditor>type ITextDocumentSnapshot = interface
interface IEditable<ITextDocumentEditor>Public Interface ITextDocumentSnapshot
Implements IEditable(Of ITextDocumentEditor)- Implements
Remarks
ITextDocumentSnapshot represents a document at a point in time and does not change. Most IDE features will be invoked with an ITextDocumentSnapshot with the state of the document when the feature was invoked.
Some advanced scenarios may benefit from caching results computed against previous ITextDocumentSnapshot versions. To facilitate such caching, ITextDocumentSnapshot supports 'translating' positions and ranges on a document between versions using TranslateTo(ITextDocumentSnapshot, TextRangeTrackingMode) and TranslateTo(ITextDocumentSnapshot, TextPositionTrackingMode), respectively.
ITextDocumentSnapshot is not directly mutable. Any changes must be requested via EditorExtensibility.EditAsync(Action<IEditBatch>, System.Threading.CancellationToken).
Properties
| IsDirty |
Determines whether the ITextDocumentSnapshot is dirty. |
| Item[Int32] |
Gets a single character at the specified position. |
| Length |
Gets the number of UTF-16 characters contained in the document. |
| Lines |
Gets a collection of lines in this version of the document. |
| RpcContract |
Converts this thick object to a serializable representation for use in an RPC call. |
| Text |
Gets a TextRange for the current text of the document. |
| Uri |
The Uri of the file. Most frequently the name and path of the file on disk. |
Methods
| AsEditable(IEditBatch) |
Gets an interface with methods for requesting changes to the underlying IEditable<TEditor> object. (Inherited from IEditable<TEditor>) |
| GetEditorOptionValueAsync<T>(TextDocumentOption<T>, CancellationToken) |
Gets an editor option value based on the current text document scope. |
| GetLineFromPosition(Int32) |
Gets an ITextDocumentSnapshotLine for a line at the given position. |
| GetLineNumberFromPosition(Int32) |
Gets the number of the line that contains the character at the specified position. |
| TranslatePositionTo(TextPosition, TextPositionTrackingMode) |
Translates a TextPosition forward or backward in time to this ITextDocumentSnapshot's version. |
| TranslateRangeTo(TextRange, TextRangeTrackingMode) |
Translates a TextRange forward or backward in time to this ITextDocumentSnapshot's version. |