How to: Programmatically Extend ranges in documents

Artículo
02/02/2017

Applies to: Visual Studio Visual Studio for Mac

Note

This article applies to Visual Studio 2017. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here

After you define a Range object in a Microsoft Office Word document, you change its start and end points by using the MoveStart and MoveEnd methods. The MoveStart and MoveEnd methods take the same two arguments, Unit and Count. The Count argument is the number of units to move, and the Unit argument can be one of the following WdUnits values:

wdCharacter
wdWord
wdSentence
wdParagraph
wdSection
wdStory
wdCell
wdColumn
wdRow
wdTable

Applies to: The information in this topic applies to document-level projects and VSTO Add-in projects for Word. For more information, see Features available by Office application and project type.

The following example defines a seven-character range. It then moves the start position of the range seven characters after the original start position. Because the end position of the range was also seven characters after the start position, the result is a range that consists of zero characters. The code then moves the end position seven characters after the current end position.

To extend a range

Define a range of characters. For more information, see How to: Programmatically define and select ranges in documents.

The following code example can be used in a document-level customization.
```
Dim rng As Word.Range = Me.Range(Start:=0, End:=7)
```
```
object start = 0;
object end = 7;
Word.Range rng = this.Range(ref start, ref end);
```
The following code example can be used in a VSTO Add-in. This example uses the active document.
```
Dim rng As Word.Range = Me.Application.ActiveDocument.Range(Start:=0, End:=7)
```
```
Word.Range rng = this.Application.ActiveDocument.Range(0, 7);
```

Use the MoveStart method of the Range object to move the start position of the range.

rng.MoveStart(Unit:=Word.WdUnits.wdCharacter, Count:=7)

rng.MoveStart(Word.WdUnits.wdCharacter, 7);

Use the MoveEnd method of the Range object to move the end position of the range.

rng.MoveEnd(Unit:=Word.WdUnits.wdCharacter, Count:=7)

rng.MoveEnd(Word.WdUnits.wdCharacter, 7);

Document-level customization code

To extend a range in a document-level customization

The following example shows the complete code for a document-level customization. To use this code, run it from the ThisDocument class in your project.

' Define a range of 7 characters.
Dim rng As Word.Range = Me.Range(Start:=0, End:=7)

' Move the start position 7 characters.
rng.MoveStart(Unit:=Word.WdUnits.wdCharacter, Count:=7)

' Move the end position 7 characters.
rng.MoveEnd(Unit:=Word.WdUnits.wdCharacter, Count:=7)

// Define a range of 7 characters.
object start = 0;
object end = 7;
Word.Range rng = this.Range(ref start, ref end);

// Move the start position 7 characters.
rng.MoveStart(Word.WdUnits.wdCharacter, 7);

// Move the end position 7 characters.
rng.MoveEnd(Word.WdUnits.wdCharacter, 7);

VSTO Add-in Code

To extend a range in an application-level VSTO Add-in

The following example shows the complete code for a VSTO Add-in. To use this code, run it from the ThisAddIn class in your project.

' Define a range of 7 characters.
Dim rng As Word.Range = Me.Application.ActiveDocument.Range(Start:=0, End:=7)

' Move the start position 7 characters.
rng.MoveStart(Unit:=Word.WdUnits.wdCharacter, Count:=7)

' Move the end position 7 characters.
rng.MoveEnd(Unit:=Word.WdUnits.wdCharacter, Count:=7)

// Define a range of 7 characters.
Word.Range rng = this.Application.ActiveDocument.Range(0, 7);

// Move the start position 7 characters.
rng.MoveStart(Word.WdUnits.wdCharacter, 7);

// Move the end position 7 characters.
rng.MoveEnd(Word.WdUnits.wdCharacter, 7);

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