Leadtools.Annotations Namespace > AnnObject Class : Tag Property |
Imports Leadtools Imports Leadtools.Annotations Imports Leadtools.Codecs Imports Leadtools.WinForms Imports Leadtools.Drawing Private tagCount As Integer Public Sub AnnObject_Tag() tagCount = 0 ' create a container and subclass to its Objects.ItemAdded event Dim container As AnnContainer = New AnnContainer() AddHandler container.Objects.ItemAdded, AddressOf AnObjectAddedToContainer ' add a few objects to the container Dim lineObj As AnnLineObject = New AnnLineObject() container.Objects.Add(lineObj) Dim rectObj As AnnRectangleObject = New AnnRectangleObject() container.Objects.Add(rectObj) Dim ellipseObj As AnnEllipseObject = New AnnEllipseObject() container.Objects.Add(ellipseObj) ' enumerate the objects in the container and show their tag For Each obj As AnnObject In container.Objects MessageBox.Show(String.Format("Object type: {0}, Tag: {1}", obj.GetType().Name, obj.Tag)) Next obj End Sub Private Sub AnObjectAddedToContainer(ByVal sender As Object, ByVal e As RasterCollectionEventArgs(Of AnnObject)) ' get the object Dim obj As AnnObject = e.Item ' update its tag obj.Tag = tagCount tagCount += 1 End Sub
using Leadtools; using Leadtools.Annotations; using Leadtools.Codecs; using Leadtools.WinForms; using Leadtools.Drawing; private int tagCount; public void AnnObject_Tag() { tagCount = 0; // create a container and subclass to its Objects.ItemAdded event AnnContainer container = new AnnContainer(); container.Objects.ItemAdded += new EventHandler<RasterCollectionEventArgs<AnnObject>>(AnObjectAddedToContainer); // add a few objects to the container AnnLineObject lineObj = new AnnLineObject(); container.Objects.Add(lineObj); AnnRectangleObject rectObj = new AnnRectangleObject(); container.Objects.Add(rectObj); AnnEllipseObject ellipseObj = new AnnEllipseObject(); container.Objects.Add(ellipseObj); // enumerate the objects in the container and show their tag foreach(AnnObject obj in container.Objects) MessageBox.Show(String.Format("Object type: {0}, Tag: {1}", obj.GetType().Name, obj.Tag)); } private void AnObjectAddedToContainer(object sender, RasterCollectionEventArgs<AnnObject> e) { // get the object AnnObject obj = e.Item; // update its tag obj.Tag = tagCount; tagCount++; }