AnnObjectCollection Class

Represents an ordered collection of AnnObject.

Object Model

Syntax

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public sealed class AnnObjectCollection : System.Collections.ObjectModel.ObservableCollection<AnnObject>, System.Collections.Generic.ICollection<AnnObject>, System.Collections.Generic.IEnumerable<AnnObject>, System.Collections.Generic.IList<AnnObject>, System.Collections.Generic.IReadOnlyCollection<AnnObject>, System.Collections.Generic.IReadOnlyList<AnnObject>, System.Collections.ICollection, System.Collections.IEnumerable, System.Collections.IList, System.Collections.Specialized.INotifyCollectionChanged, System.ComponentModel.INotifyPropertyChanged

'Declaration
 
Public NotInheritable Class AnnObjectCollection 
   Inherits System.Collections.ObjectModel.ObservableCollection(Of AnnObject)
   Implements System.Collections.Generic.ICollection(Of AnnObject), System.Collections.Generic.IEnumerable(Of AnnObject), System.Collections.Generic.IList(Of AnnObject), System.Collections.Generic.IReadOnlyCollection(Of AnnObject), System.Collections.Generic.IReadOnlyList(Of AnnObject), System.Collections.ICollection, System.Collections.IEnumerable, System.Collections.IList, System.Collections.Specialized.INotifyCollectionChanged, System.ComponentModel.INotifyPropertyChanged

'Usage
 
Dim instance As AnnObjectCollection

public sealed sealed class AnnObjectCollection : System.Collections.Generic.ICollection<AnnObject>, Windows.Foundation.Collections.IIterable //In WinRT the IEnumerable interface is replaced by IIterable<AnnObject>, Windows.Foundation.Collections.IVector //In WinRT the IList interface is replaced by IVector<AnnObject>, System.Collections.Generic.IReadOnlyCollection<AnnObject>, System.Collections.Generic.IReadOnlyList<AnnObject>, System.Collections.ICollection, System.Collections.IEnumerable, System.Collections.IList, System.Collections.Specialized.INotifyCollectionChanged, System.ComponentModel.INotifyPropertyChanged

function Leadtools.Windows.Annotations.AnnObjectCollection()

public ref class AnnObjectCollection sealed : public System.Collections.ObjectModel.ObservableCollection<AnnObject>, System.Collections.Generic.ICollection<AnnObject>, System.Collections.Generic.IEnumerable<AnnObject>, System.Collections.Generic.IList<AnnObject>, System.Collections.Generic.IReadOnlyCollection<AnnObject>, System.Collections.Generic.IReadOnlyList<AnnObject>, System.Collections.ICollection, System.Collections.IEnumerable, System.Collections.IList, System.Collections.Specialized.INotifyCollectionChanged, System.ComponentModel.INotifyPropertyChanged

Example

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Public Sub AnnObjectCollectionExample(ByVal container As AnnContainer)
   AddHandler container.ObjectAdded, AddressOf container_ObjectAdded
   AddHandler container.ObjectRemoved, AddressOf container_ObjectRemoved
   ' add a few objects
   Dim lineObj As AnnLineObject = New AnnLineObject()
   lineObj.Start = New Point(100, 100)
   lineObj.End = New Point(200, 200)
   lineObj.Stroke = Colors.Blue
   lineObj.StrokeThickness = 2.0
   lineObj.Header = "Object 1"

   Dim rectObj As AnnRectangleObject = New AnnRectangleObject()
   rectObj.Rect = New Rect(200, 200, 100, 100)
   rectObj.Stroke = Colors.Blue
   rectObj.StrokeThickness = 2.0
   rectObj.Fill = Colors.Transparent
   rectObj.Header = "Object 2"

   Dim ellipseObj As AnnEllipseObject = New AnnEllipseObject()
   ellipseObj.Rect = New Rect(200, 200, 150, 100)
   ellipseObj.Stroke = Colors.Yellow
   ellipseObj.StrokeThickness = 2.0
   ellipseObj.Fill = Colors.Green
   ellipseObj.Header = "Object 3"

   container.Children.Add(lineObj)
   container.Children.Add(rectObj)
   container.Children.Add(ellipseObj)

   ' insert new Object
   Dim newLineObj As AnnLineObject = DirectCast(lineObj.Clone(), AnnLineObject)
   newLineObj.Start = New Point(110, 110)
   newLineObj.End = New Point(210, 210)
   newLineObj.Stroke = Colors.Red
   newLineObj.StrokeThickness = 2.0
   newLineObj.Header = "New Object"

   container.Children.Insert(1, newLineObj)

   ' check if collection contains this new item 
   System.Diagnostics.Debug.Assert(container.Children.Contains(newLineObj))

   ' remove this new item 
   container.Children.Remove(newLineObj)
   System.Diagnostics.Debug.Assert((Not container.Children.Contains(newLineObj)))

   ' remove the last item 
   container.Children.RemoveAt(container.Children.Count - 1)
   System.Diagnostics.Debug.Assert(container.Children.Count = 2)

   ' send the first item to the end of the collection 
   container.Children.SendToBack(lineObj, True)
   System.Diagnostics.Debug.Assert(container.Children.IndexOf(lineObj) = container.Children.Count - 1)

   ' bring it back to the front 
   container.Children.BringToFront(lineObj, True)
   System.Diagnostics.Debug.Assert(container.Children.IndexOf(lineObj) = 0)

   ' clean the collection 
   container.Children.Clear()
   System.Diagnostics.Debug.Assert(container.Children.Count = 0)
End Sub

Private Sub container_ObjectAdded(ByVal sender As Object, ByVal e As AnnObjectCollectionEventArgs)
   Console.WriteLine("The Object ((" & e.Object.Header & ")) Has been added to the collection")
End Sub

Private Sub container_ObjectRemoved(ByVal sender As System.Object, ByVal e As AnnObjectCollectionEventArgs)
   Console.WriteLine("The Object ((" & e.Object.Header & ")) Has been removed from the collection")
End Sub

public void AnnObjectCollectionExample(AnnContainer container)
{
   container.ObjectAdded += new EventHandler<AnnObjectCollectionEventArgs>(container_ObjectAdded);
   container.ObjectRemoved += new EventHandler<AnnObjectCollectionEventArgs>(container_ObjectRemoved);
   // add a few objects
   AnnLineObject lineObj = new AnnLineObject();
   lineObj.Start = new Point(100, 100);
   lineObj.End = new Point(200, 200);
   lineObj.Stroke = Colors.Blue;
   lineObj.StrokeThickness = 2.0;
   lineObj.Header = "Object 1";

   AnnRectangleObject rectObj = new AnnRectangleObject();
   rectObj.Rect = new Rect(200, 200, 100, 100);
   rectObj.Stroke = Colors.Blue;
   rectObj.Fill = Colors.Transparent;
   rectObj.StrokeThickness = 2.0;
   rectObj.Header = "Object 2";

   AnnEllipseObject ellipseObj = new AnnEllipseObject();
   ellipseObj.Rect = new Rect(200, 200, 150, 100);
   ellipseObj.Stroke = Colors.Yellow;
   ellipseObj.Fill = Colors.Green;
   ellipseObj.StrokeThickness = 2.0;
   ellipseObj.Header = "Object 3";

   container.Children.Add(lineObj);
   container.Children.Add(rectObj);
   container.Children.Add(ellipseObj);

   // insert new Object
   AnnLineObject newLineObj = lineObj.Clone() as AnnLineObject;
   newLineObj.Start = new Point(110, 110);
   newLineObj.End = new Point(210, 210);
   newLineObj.Stroke = Colors.Red;
   newLineObj.StrokeThickness = 2.0;
   newLineObj.Header = "New Object";

   container.Children.Insert(1, newLineObj);

   // check if collection contains this new item 
   System.Diagnostics.Debug.Assert(container.Children.Contains(newLineObj));

   // remove this new item 
   container.Children.Remove(newLineObj);
   System.Diagnostics.Debug.Assert(!container.Children.Contains(newLineObj));

   // remove the last item 
   container.Children.RemoveAt(container.Children.Count - 1);
   System.Diagnostics.Debug.Assert(container.Children.Count == 2);

   // send the first item to the end of the collection 
   container.Children.SendToBack(lineObj, true);
   System.Diagnostics.Debug.Assert(container.Children.IndexOf(lineObj) == container.Children.Count - 1);

   // bring it back to the front 
   container.Children.BringToFront(lineObj, true);
   System.Diagnostics.Debug.Assert(container.Children.IndexOf(lineObj) == 0);

   // clean the collection 
   container.Children.Clear();
   System.Diagnostics.Debug.Assert(container.Children.Count == 0);
}

private void container_ObjectAdded(object sender, AnnObjectCollectionEventArgs e)
{
   Console.WriteLine("The Object ((" + e.Object.Header + ")) Has been added to the collection");
}

private void container_ObjectRemoved(System.Object sender, AnnObjectCollectionEventArgs e)
{
   Console.WriteLine("The Object ((" + e.Object.Header + ")) Has been removed from the collection");
}

public void AnnObjectCollectionExample(AnnContainer container)
{
   container.ObjectAdded += new EventHandler<AnnObjectCollectionEventArgs>(container_ObjectAdded);
   container.ObjectRemoved += new EventHandler<AnnObjectCollectionEventArgs>(container_ObjectRemoved);
   // add a few objects
   AnnLineObject lineObj = new AnnLineObject();
   lineObj.Start = new Point(100, 100);
   lineObj.End = new Point(200, 200);
   lineObj.Stroke = Colors.Blue;
   lineObj.StrokeThickness = 2.0;
   lineObj.Header = "Object 1";

   AnnRectangleObject rectObj = new AnnRectangleObject();
   rectObj.Rect = new Rect(200, 200, 100, 100);
   rectObj.Stroke = Colors.Blue;
   rectObj.Fill = Colors.Transparent;
   rectObj.StrokeThickness = 2.0;
   rectObj.Header = "Object 2";

   AnnEllipseObject ellipseObj = new AnnEllipseObject();
   ellipseObj.Rect = new Rect(200, 200, 150, 100);
   ellipseObj.Stroke = Colors.Yellow;
   ellipseObj.Fill = Colors.Green;
   ellipseObj.StrokeThickness = 2.0;
   ellipseObj.Header = "Object 3";

   container.Children.Add(lineObj);
   container.Children.Add(rectObj);
   container.Children.Add(ellipseObj);

   // insert new Object
   AnnLineObject newLineObj = lineObj.Clone() as AnnLineObject;
   newLineObj.Start = new Point(110, 110);
   newLineObj.End = new Point(210, 210);
   newLineObj.Stroke = Colors.Red;
   newLineObj.StrokeThickness = 2.0;
   newLineObj.Header = "New Object";

   container.Children.Insert(1, newLineObj);

   // check if collection contains this new item 
   System.Diagnostics.Debug.Assert(container.Children.Contains(newLineObj));

   // remove this new item 
   container.Children.Remove(newLineObj);
   System.Diagnostics.Debug.Assert(!container.Children.Contains(newLineObj));

   // remove the last item 
   container.Children.RemoveAt(container.Children.Count - 1);
   System.Diagnostics.Debug.Assert(container.Children.Count == 2);

   // send the first item to the end of the collection 
   container.Children.SendToBack(lineObj, true);
   System.Diagnostics.Debug.Assert(container.Children.IndexOf(lineObj) == container.Children.Count - 1);

   // bring it back to the front 
   container.Children.BringToFront(lineObj, true);
   System.Diagnostics.Debug.Assert(container.Children.IndexOf(lineObj) == 0);

   // clean the collection 
   container.Children.Clear();
   System.Diagnostics.Debug.Assert(container.Children.Count == 0);
}

private void container_ObjectAdded(object sender, AnnObjectCollectionEventArgs e)
{
   Console.WriteLine("The Object ((" + e.Object.Header + ")) Has been added to the collection");
}

private void container_ObjectRemoved(System.Object sender, AnnObjectCollectionEventArgs e)
{
   Console.WriteLine("The Object ((" + e.Object.Header + ")) Has been removed from the collection");
}

Public Sub AnnObjectCollectionExample(ByVal container As AnnContainer)
   AddHandler container.ObjectAdded, AddressOf container_ObjectAdded
   AddHandler container.ObjectRemoved, AddressOf container_ObjectRemoved
   ' add a few objects
   Dim lineObj As AnnLineObject = New AnnLineObject()
   lineObj.Start = New Point(100, 100)
   lineObj.End = New Point(200, 200)
   lineObj.Stroke = Colors.Blue
   lineObj.StrokeThickness = 2.0
   lineObj.Header = "Object 1"

   Dim rectObj As AnnRectangleObject = New AnnRectangleObject()
   rectObj.Rect = New Rect(200, 200, 100, 100)
   rectObj.Stroke = Colors.Blue
   rectObj.Fill = Colors.Transparent
   rectObj.StrokeThickness = 2.0
   rectObj.Header = "Object 2"

   Dim ellipseObj As AnnEllipseObject = New AnnEllipseObject()
   ellipseObj.Rect = New Rect(200, 200, 150, 100)
   ellipseObj.Stroke = Colors.Yellow
   ellipseObj.Fill = Colors.Green
   ellipseObj.StrokeThickness = 2.0
   ellipseObj.Header = "Object 3"

   container.Children.Add(lineObj)
   container.Children.Add(rectObj)
   container.Children.Add(ellipseObj)

   ' insert new Object
   Dim newLineObj As AnnLineObject = TryCast(lineObj.Clone(), AnnLineObject)
   newLineObj.Start = New Point(110, 110)
   newLineObj.End = New Point(210, 210)
   newLineObj.Stroke = Colors.Red
   newLineObj.StrokeThickness = 2.0
   newLineObj.Header = "New Object"

   container.Children.Insert(1, newLineObj)

   ' check if collection contains this new item 
   System.Diagnostics.Debug.Assert(container.Children.Contains(newLineObj))

   ' remove this new item 
   container.Children.Remove(newLineObj)
   System.Diagnostics.Debug.Assert((Not container.Children.Contains(newLineObj)))

   ' remove the last item 
   container.Children.RemoveAt(container.Children.Count - 1)
   System.Diagnostics.Debug.Assert(container.Children.Count = 2)

   ' send the first item to the end of the collection 
   container.Children.SendToBack(lineObj, True)
   System.Diagnostics.Debug.Assert(container.Children.IndexOf(lineObj) = container.Children.Count - 1)

   ' bring it back to the front 
   container.Children.BringToFront(lineObj, True)
   System.Diagnostics.Debug.Assert(container.Children.IndexOf(lineObj) = 0)

   ' clean the collection 
   container.Children.Clear()
   System.Diagnostics.Debug.Assert(container.Children.Count = 0)
End Sub

Private Sub container_ObjectAdded(ByVal sender As Object, ByVal e As AnnObjectCollectionEventArgs)
   Console.WriteLine("The Object ((" & e.Object.Header & ")) Has been added to the collection")
End Sub

Private Sub container_ObjectRemoved(ByVal sender As System.Object, ByVal e As AnnObjectCollectionEventArgs)
   Console.WriteLine("The Object ((" & e.Object.Header & ")) Has been removed from the collection")
End Sub

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

AnnObjectCollection Members
Leadtools.Windows.Annotations Namespace