Leadtools.Windows.Annotations Namespace > AnnCodecs Class > DeletePage Method : DeletePage(String,Int32) Method |
'Declaration Public Overloads Sub DeletePage( _ ByVal fileName As String, _ ByVal page As Integer _ )
'Usage Dim instance As AnnCodecs Dim fileName As String Dim page As Integer instance.DeletePage(fileName, page)
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(String,AnnCodecsInformation).
Note, you cannot delete a page from an annotation file that has only 1 page.
Imports Leadtools.Windows.Controls Imports Leadtools.Windows.Annotations 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.Rect = New Rect(100, 100, 100, 100) rectObj.Stroke = Colors.Blue rectObj.StrokeThickness = 1.0 rectObj.Fill = Nothing container.Children.Add(rectObj) Dim lineObj As AnnLineObject = New AnnLineObject() lineObj.Start = New Point(100, 100) lineObj.End = New Point(200, 200) lineObj.Stroke = Colors.Red lineObj.StrokeThickness = 1.0 container.Children.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.NativeXml, 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.NativeXml, 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
using Leadtools.Windows.Controls; using Leadtools.Windows.Annotations; using Leadtools.Demos; using Leadtools.Help; 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.Rect = new Rect(100, 100, 100, 100); rectObj.Stroke = Colors.Blue; rectObj.Fill = Colors.Transparent; rectObj.StrokeThickness = 1.0; container.Children.Add(rectObj); AnnLineObject lineObj = new AnnLineObject(); lineObj.Start = new Point(100,100); lineObj.End = new Point(200, 200); lineObj.Stroke = Colors.Red; lineObj.StrokeThickness = 1.0; container.Children.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.NativeXml, 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.NativeXml, 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)); }