Public Overridable Property Group As AnnGroupObject

Visual Basic (Usage)	Copy Code
Dim instance As AnnObject Dim value As AnnGroupObject   instance.Group = value   value = instance.Group

public virtual AnnGroupObject Group {get; set;}

public: __property virtual AnnGroupObject* get_Group();
public: __property virtual void set_Group( 
   AnnGroupObject* value
);

public:
virtual property AnnGroupObject^ Group {
   AnnGroupObject^ get();
   void set (AnnGroupObject^ value);
}

Return Value

This example creates a line, adds it to a group then adds the group to a container while checking the Container and Group property of the object.

Visual Basic

Copy Code

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

C#

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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();  }

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.

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

Reference