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DeletePage Method
See Also  Example
Leadtools.Annotations Namespace > AnnCodecs Class : DeletePage Method




Deletes a page from an annotation file containing multiple pages.

Overload List

OverloadDescription
DeletePage(String,Int32) Deletes a page from an annotation file containing multiple pages.  
DeletePage(Stream,Int32) Deletes a page from an annotation stream containing multiple pages.  

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 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 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also

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