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DeletePage(String,Int32) Method
See Also 
Leadtools.Annotations Namespace > AnnCodecs Class > DeletePage Method : DeletePage(String,Int32) Method



fileName
Name of the annotation file.
page
Number of the page to delete. The page number is 1-based. Therefore, the first page is page 1, the second page is page 2, etc.

The DeletePage(String,Int32) Method is available in LEADTOOLS Document and Medical Imaging toolkits.

fileName
Name of the annotation file.
page
Number of the page to delete. The page number is 1-based. Therefore, the first page is page 1, the second page is page 2, etc.
Deletes a page from an annotation file containing multiple pages.

Syntax

Visual Basic (Declaration) 
Overloads Public Sub DeletePage( _
   ByVal fileName As String, _
   ByVal page As Integer _
) 
Visual Basic (Usage)Copy Code
Dim instance As AnnCodecs
Dim fileName As String
Dim page As Integer
 
instance.DeletePage(fileName, page)
C# 
public void DeletePage( 
   string fileName,
   int page
)
C++/CLI 
public:
void DeletePage( 
   String^ fileName,
   int page
) 

Parameters

fileName
Name of the annotation file.
page
Number of the page to delete. The page number is 1-based. Therefore, the first page is page 1, the second page is page 2, etc.

Example

Visual BasicCopy Code
Public Sub AnnCodecs_DeletePage(ByVal fileName As String)
   ' create a new annotation container
   Dim container As AnnContainer = New AnnContainer()
   ' add a few objects into the container

   Dim rectObj As AnnRectangleObject = New AnnRectangleObject()
   rectObj.Bounds = New AnnRectangle(100, 100, 100, 100, AnnUnit.Pixel)
   rectObj.Pen = New AnnPen(Color.Blue, New AnnLength(1, AnnUnit.Pixel))
   rectObj.Brush = Nothing
   container.Objects.Add(rectObj)

   Dim lineObj As AnnLineObject = New AnnLineObject()
   lineObj.StartPoint = New AnnPoint(100, 100, AnnUnit.Pixel)
   lineObj.EndPoint = New AnnPoint(200, 200, AnnUnit.Pixel)
   lineObj.Pen = New AnnPen(Color.Red, New AnnLength(1, AnnUnit.Pixel))
   container.Objects.Add(lineObj)

   ' create a new AnnCodecs class
   Dim codecs As AnnCodecs = New AnnCodecs()

   ' save this container into a file
   ' save the objects in this container
   codecs.Save(fileName, container, AnnCodecsFormat.Serialize, 1, AnnCodecsSavePageMode.Overwrite)

   ' get information about the file
   Dim information As AnnCodecsInformation = New AnnCodecsInformation()
   codecs.GetInformation(fileName, information)
   MessageBox.Show(String.Format("Format: {0}, Number of pages: {1}", information.Format, information.Pages))

   ' save the objects again (as a second page)
   codecs.Save(fileName, container, AnnCodecsFormat.Serialize, 2, AnnCodecsSavePageMode.Insert)

   ' get information about the file
   information = New AnnCodecsInformation()
   codecs.GetInformation(fileName, information)
   MessageBox.Show(String.Format("Format: {0}, Number of pages: {1}", information.Format, information.Pages))

   ' delete the first page
   codecs.DeletePage(fileName, 1)

   ' get information about the file
   information = New AnnCodecsInformation()
   codecs.GetInformation(fileName, information)
   MessageBox.Show(String.Format("Format: {0}, Number of pages: {1}", information.Format, information.Pages))
End Sub
C#Copy Code
public void AnnCodecs_DeletePage(string fileName)
{
   // create a new annotation container
   AnnContainer container = new AnnContainer();
   // add a few objects into the container

   AnnRectangleObject rectObj = new AnnRectangleObject();
   rectObj.Bounds = new AnnRectangle(100, 100, 100, 100, AnnUnit.Pixel);
   rectObj.Pen = new AnnPen(Color.Blue, new AnnLength(1, AnnUnit.Pixel));
   rectObj.Brush = null;
   container.Objects.Add(rectObj);

   AnnLineObject lineObj = new AnnLineObject();
   lineObj.StartPoint = new AnnPoint(100, 100, AnnUnit.Pixel);
   lineObj.EndPoint = new AnnPoint(200, 200, AnnUnit.Pixel);
   lineObj.Pen = new AnnPen(Color.Red, new AnnLength(1, AnnUnit.Pixel));
   container.Objects.Add(lineObj);

   // create a new AnnCodecs class
   AnnCodecs codecs = new AnnCodecs();

   // save this container into a file
   // save the objects in this container
   codecs.Save(fileName, container, AnnCodecsFormat.Serialize, 1, AnnCodecsSavePageMode.Overwrite);

   // get information about the file
   AnnCodecsInformation information = new AnnCodecsInformation();
   codecs.GetInformation(fileName, information);
   MessageBox.Show(String.Format("Format: {0}, Number of pages: {1}", information.Format, information.Pages));

   // save the objects again (as a second page)
   codecs.Save(fileName, container, AnnCodecsFormat.Serialize, 2, AnnCodecsSavePageMode.Insert);

   // get information about the file
   information = new AnnCodecsInformation();
   codecs.GetInformation(fileName, information);
   MessageBox.Show(String.Format("Format: {0}, Number of pages: {1}", information.Format, information.Pages));

   // delete the first page
   codecs.DeletePage(fileName, 1);

   // get information about the file
   information = new AnnCodecsInformation();
   codecs.GetInformation(fileName, information);
   MessageBox.Show(String.Format("Format: {0}, Number of pages: {1}", information.Format, information.Pages));
}

Remarks

This method can be used to remove annotation pages from a multi-page annotation file. The page number is 1-based. Therefore, the first page is page 1, the second page is page 2, and so on. This method can be used for all LEAD annotation file formats. To determine the format for a particular LEAD annotation file, use AnnCodecs.GetInformation.

Note, you cannot delete a page from an annotation file that has only 1 page.

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7

See Also

Leadtools.Annotations requires a Document or Medical toolkit license and unlock key. For more information, refer to: Imaging Pro/Document/Medical Features