Leadtools.Annotations Namespace > AnnObject Class : Group Property |
public virtual AnnGroupObject Group {get; set;}
'Declaration Public Overridable Property Group As AnnGroupObject
'Usage Dim instance As AnnObject Dim value As AnnGroupObject instance.Group = value value = instance.Group
public: virtual property AnnGroupObject^ Group { AnnGroupObject^ get(); void set ( AnnGroupObject^ value); }
An AnnObject can be part of one AnnGroupObject only at any given time.
When adding or removing objects to or from a group, you do not need to manually set this property to the container value: this operation is performed internally by the LEADTOOLS annotation toolkit. However, you can check the value of this property to determine the group (if any) to which a certain object currently belongs.
Imports Leadtools Imports Leadtools.Annotations Imports Leadtools.Codecs Imports Leadtools.WinForms Imports Leadtools.Drawing Public Sub AnnObject_Group() ' add an object to the first container Dim line As AnnLineObject = New AnnLineObject() line.Name = "Line1" ShowGroupAndContainer(line) ' add it to a group Dim group As AnnGroupObject = New AnnGroupObject() group.Name = "Group1" group.Objects.Add(line) ShowGroupAndContainer(line) ' add the group to a container Dim container As AnnContainer = New AnnContainer() container.Name = "Container1" container.Objects.Add(group) ShowGroupAndContainer(line) End Sub Private Sub ShowGroupAndContainer(ByVal obj As AnnObject) Console.Write("Container: ") If Not obj.Container Is Nothing Then Console.Write(obj.Container.Name) Else Console.Write("none") End If Console.Write(", Group: ") If Not obj.Group Is Nothing Then Console.Write(obj.Group.Name) Else Console.Write("none") End If Console.WriteLine() End Sub
using Leadtools; using Leadtools.Annotations; using Leadtools.Codecs; using Leadtools.WinForms; using Leadtools.Drawing; public void AnnObject_Group() { // add an object to the first container AnnLineObject line = new AnnLineObject(); line.Name = "Line1"; ShowGroupAndContainer(line); // add it to a group AnnGroupObject group = new AnnGroupObject(); group.Name = "Group1"; group.Objects.Add(line); ShowGroupAndContainer(line); // add the group to a container AnnContainer container = new AnnContainer(); container.Name = "Container1"; container.Objects.Add(group); ShowGroupAndContainer(line); } private void ShowGroupAndContainer(AnnObject obj) { Console.Write("Container: "); if(obj.Container != null) Console.Write(obj.Container.Name); else Console.Write("none"); Console.Write(", Group: "); if(obj.Group != null) Console.Write(obj.Group.Name); else Console.Write("none"); Console.WriteLine(); }