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IImageListItem Interface

Summary

Defines the properties required for an item in an ImageList control.

Syntax

C#
VB
C++
public interface IImageListItem
Public Interface IImageListItem
public interface class IImageListItem

Remarks

The IImageListItem interface defines the minimum properties required to for an item class that can be used with the ImageList control. The following classes implement this interface and are implemented by LEADTOOLS:

You can define your own classes that implement IImageListItem and use them with the LEADTOOLS ImageList control. The ImageList control derives from the WPF/Silverlight System.Windows.Controls.ItemsControl class and implements the standard WPF binding using a ObservableCollection<IImageListItem> ItemsSource through the ImageList.ItemsSource property. Using binding, you can easily create a collection of your own image list items and add them to the control through code or markup. The example below shows you how to do that.

When using your own class that implements IImageListItem, the following items properties of the ImageList control will be used:

The following item properties will not be used:

Example

This examples shows how to create your own class that implements IImageListItem and bind a collection of these classes to an ImageList control.

C#
VB
Silverlight C#
Silverlight VB
Imports Leadtools.Windows.Controls 
 
        Private Class MyImageListItem : Implements IImageListItem 
#Region "IImageListItem Members" 
            Private _background As Brush 
 
            Public Property Background() As Brush Implements IImageListItem.Background 
                Get 
                    Return _background 
                End Get 
                Set(ByVal value As Brush) 
                    _background = value 
                End Set 
            End Property 
 
            Private _foreground As Brush 
 
            Public Property Foreground() As Brush Implements IImageListItem.Foreground 
                Get 
                    Return _foreground 
                End Get 
                Set(ByVal value As Brush) 
                    _foreground = value 
                End Set 
            End Property 
 
            Private _height As Double = 100 
 
            Public Property Height() As Double Implements IImageListItem.Height 
                Get 
                    Return _height 
                End Get 
                Set(ByVal value As Double) 
                    _height = value 
                End Set 
            End Property 
 
            Private _imageSize As Size 
 
            Public Property ImageSize() As Size Implements IImageListItem.ImageSize 
                Get 
                    Return _imageSize 
                End Get 
                Set(ByVal value As Size) 
                    _imageSize = value 
                End Set 
            End Property 
 
            Private _source As ImageSource 
 
            Public Property Source() As ImageSource Implements IImageListItem.Source 
                Get 
                    Return _source 
                End Get 
                Set(ByVal value As ImageSource) 
                    _source = value 
                End Set 
            End Property 
 
            Private _text As String 
 
            Public Property Text() As String Implements IImageListItem.Text 
                Get 
                    Return _text 
                End Get 
                Set(ByVal value As String) 
                    _text = value 
                End Set 
            End Property 
 
            Private _uri As Uri 
 
            Public Property Uri() As Uri Implements IImageListItem.Uri 
                Get 
                    Return _uri 
                End Get 
                Set(ByVal value As Uri) 
                    _uri = value 
                End Set 
            End Property 
 
            Private _width As Double = 100 
 
            Public Property Width() As Double Implements IImageListItem.Width 
                Get 
                    Return _width 
                End Get 
                Set(ByVal value As Double) 
                    _width = value 
                End Set 
            End Property 
#End Region 
        End Class 
 
        Private Class MyWindow1 : Inherits Window 
            Public imageList As ImageList 
            Public Sub New(ByVal title As String) 
                title = title 
 
                ' Set the size of the window 
                Width = 400 
                Height = 200 
 
                ' Create a new ImageList control. 
                imageList = New ImageList() 
                imageList.Width = Double.NaN 
                imageList.Height = Double.NaN 
 
                imageList.Background = New RadialGradientBrush(Colors.DarkGray, Colors.LightGray) 
 
                imageList.BorderThickness = New Thickness(5, 5, 5, 5) 
 
                ' Create three items 
                Dim imagesPath As String = LEAD_VARS.ImagesDir 
                Dim items As ObservableCollection(Of IImageListItem) = New ObservableCollection(Of IImageListItem)() 
 
                For i As Integer = 0 To 2 
                    ' Load the image 
                    Dim index As Integer = i + 1 
                    Dim imageFileName As String = Path.Combine(imagesPath, "ImageProcessingDemo\Image" & index.ToString() & ".jpg") 
 
                    Dim item As MyImageListItem = New MyImageListItem() 
                    item.Source = New BitmapImage(New Uri(imageFileName)) 
                    item.Text = "item" & index.ToString() 
                    item.Uri = New Uri(imageFileName) 
 
                    ' Add the item to the image list 
                    items.Add(item) 
                Next i 
 
                imageList.ItemsSource = items 
 
                ' Add the ImageList to the Window. 
                Content = imageList 
            End Sub 
        End Class 
 
        Public Sub ImageList_IImageListItem(ByVal title As String) 
            Dim window As MyWindow1 = New MyWindow1(title) 
            window.ShowDialog() 
        End Sub 
 
        Public NotInheritable Class LEAD_VARS 
        Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
        End Class 
using Leadtools.Help; 
using Leadtools.Windows.Controls; 
 
class MyImageListItem : IImageListItem 
{ 
   #region IImageListItem Members 
   Brush _background; 
 
   public Brush Background 
   { 
      get { return _background; } 
      set { _background = value; } 
   } 
 
   Brush _foreground; 
 
   public Brush Foreground 
   { 
      get { return _foreground; } 
      set { _foreground = value; } 
   } 
 
   double _height = 100; 
 
   public double Height 
   { 
      get { return _height; } 
      set { _height = value; } 
   } 
 
   Size _imageSize; 
 
   public Size ImageSize 
   { 
      get { return _imageSize; } 
      set { _imageSize = value; } 
   } 
 
   ImageSource _source; 
 
   public ImageSource Source 
   { 
      get { return _source; } 
      set { _source = value; } 
   } 
 
   string _text; 
 
   public string Text 
   { 
      get { return _text; } 
      set { _text = value; } 
   } 
 
   Uri _uri; 
 
   public Uri Uri 
   { 
      get { return _uri; } 
      set { _uri = value; } 
   } 
 
   double _width = 100; 
 
   public double Width 
   { 
      get { return _width; } 
      set { _width = value; } 
   } 
   #endregion 
} 
 
class MyWindow1 : Window 
{ 
   public ImageList imageList; 
   public MyWindow1(string title) 
   { 
      Title = title; 
 
      // Set the size of the window 
      Width = 400; 
      Height = 200; 
 
      // Create a new ImageList control. 
      imageList = new ImageList(); 
      imageList.Width = Double.NaN; 
      imageList.Height = Double.NaN; 
 
      imageList.Background = new RadialGradientBrush(Colors.DarkGray, Colors.LightGray); 
 
      imageList.BorderThickness = new Thickness(5, 5, 5, 5); 
 
      // Create three items 
      string imagesPath = LEAD_VARS.ImagesDir; 
      ObservableCollection<IImageListItem> items = new ObservableCollection<IImageListItem>(); 
 
      for (int i = 0; i < 3; i++) 
      { 
         // Load the image 
         int index = i + 1; 
         string imageFileName = Path.Combine(imagesPath, @"ImageProcessingDemo\Image" + index.ToString() + ".jpg"); 
 
         MyImageListItem item = new MyImageListItem(); 
         item.Source = new BitmapImage(new Uri(imageFileName)); 
         item.Text = "item" + index.ToString(); 
         item.Uri = new Uri(imageFileName); 
 
         // Add the item to the image list 
         items.Add(item); 
      } 
 
      imageList.ItemsSource = items; 
 
      // Add the ImageList to the Window. 
      Content = imageList; 
   } 
} 
 
public void ImageList_IImageListItem(string title) 
{ 
   MyWindow1 window = new MyWindow1(title); 
   window.ShowDialog(); 
} 
 
static class LEAD_VARS 
{ 
public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 
using Leadtools.Help; 
using Leadtools.Windows.Controls; 
 
class MyImageListItem : IImageListItem 
{ 
   #region IImageListItem Members 
   Brush _background; 
 
   public Brush Background 
   { 
      get { return _background; } 
      set { _background = value; } 
   } 
 
   Brush _foreground; 
 
   public Brush Foreground 
   { 
      get { return _foreground; } 
      set { _foreground = value; } 
   } 
 
   double _height = 100; 
 
   public double Height 
   { 
      get { return _height; } 
      set { _height = value; } 
   } 
 
   Size _imageSize; 
 
   public Size ImageSize 
   { 
      get { return _imageSize; } 
      set { _imageSize = value; } 
   } 
 
   ImageSource _source; 
 
   public ImageSource Source 
   { 
      get { return _source; } 
      set { _source = value; } 
   } 
 
   string _text; 
 
   public string Text 
   { 
      get { return _text; } 
      set { _text = value; } 
   } 
 
   Uri _uri; 
 
   public Uri Uri 
   { 
      get { return _uri; } 
      set { _uri = value; } 
   } 
 
   double _width = 100; 
 
   public double Width 
   { 
      get { return _width; } 
      set { _width = value; } 
   } 
   #endregion 
} 
 
class MyWindow1 : ChildWindow 
{ 
   public ImageList imageList; 
   public MyWindow1(string title) 
   { 
      Title = title; 
 
      // Set the size of the window 
      Width = 400; 
      Height = 200; 
 
      // Create a new ImageList control. 
      imageList = new ImageList(); 
      imageList.Width = Double.NaN; 
      imageList.Height = Double.NaN; 
 
      imageList.Background = new RadialGradientBrush(Colors.DarkGray, Colors.LightGray); 
 
      imageList.BorderThickness = new Thickness(5, 5, 5, 5); 
 
      // Create three items 
      string imagesPath = LeadtoolsExamples.Common.ImagesPath.Path; 
      ObservableCollection<IImageListItem> items = new ObservableCollection<IImageListItem>(); 
 
      for (int i = 0; i < 3; i++) 
      { 
         // Load the image 
         int index = i + 1; 
         string imageFileName = imagesPath + "Image" + index.ToString() + ".jpg"; 
 
         MyImageListItem item = new MyImageListItem(); 
         item.Source = new BitmapImage(new Uri(imageFileName)); 
         item.Text = "item" + index.ToString(); 
         item.Uri = new Uri(imageFileName); 
 
         // Add the item to the image list 
         items.Add(item); 
      } 
 
      imageList.ItemsSource = items; 
 
      // Add the ImageList to the Window. 
      Content = imageList; 
   } 
} 
 
public void ImageList_IImageListItem(string title) 
{ 
   MyWindow1 window = new MyWindow1(title); 
   window.Show(); 
} 
Imports Leadtools 
      Imports Leadtools.Windows.Controls 
 
      Private Class MyImageListItem : Implements IImageListItem 
#Region "IImageListItem Members" 
 
         Private _background As Brush 
 
         Public Property Background() As Brush Implements IImageListItem.Background 
            Get 
               Return _background 
            End Get 
            Set(ByVal value As Brush) 
               _background = value 
            End Set 
         End Property 
 
         Private _foreground As Brush 
 
         Public Property Foreground() As Brush Implements IImageListItem.Foreground 
            Get 
               Return _foreground 
            End Get 
            Set(ByVal value As Brush) 
               _foreground = value 
            End Set 
         End Property 
 
         Private _height As Double = 100 
 
         Public Property Height() As Double Implements IImageListItem.Height 
            Get 
               Return _height 
            End Get 
            Set(ByVal value As Double) 
               _height = value 
            End Set 
         End Property 
 
         Private _imageSize As Size 
 
         Public Property ImageSize() As Size Implements IImageListItem.ImageSize 
            Get 
               Return _imageSize 
            End Get 
            Set(ByVal value As Size) 
               _imageSize = value 
            End Set 
         End Property 
 
         Private _source As ImageSource 
 
         Public Property Source() As ImageSource Implements IImageListItem.Source 
            Get 
               Return _source 
            End Get 
            Set(ByVal value As ImageSource) 
               _source = value 
            End Set 
         End Property 
 
         Private _text As String 
 
         Public Property Text() As String Implements IImageListItem.Text 
            Get 
               Return _text 
            End Get 
            Set(ByVal value As String) 
               _text = value 
            End Set 
         End Property 
 
         Private _uri As Uri 
 
         Public Property Uri() As Uri Implements IImageListItem.Uri 
            Get 
               Return _uri 
            End Get 
            Set(ByVal value As Uri) 
               _uri = value 
            End Set 
         End Property 
 
         Private _width As Double = 100 
 
         Public Property Width() As Double Implements IImageListItem.Width 
            Get 
               Return _width 
            End Get 
            Set(ByVal value As Double) 
               _width = value 
            End Set 
         End Property 
#End Region 
      End Class 
 
      Private Class MyWindow1 : Inherits ChildWindow 
         Public imageList As ImageList 
         Public Sub New(ByVal title As String) 
            Title = title 
 
            ' Set the size of the window 
            Width = 400 
            Height = 200 
 
            ' Create a new ImageList control. 
            imageList = New ImageList() 
            imageList.Width = Double.NaN 
            imageList.Height = Double.NaN 
 
            imageList.Background = New RadialGradientBrush(Colors.DarkGray, Colors.LightGray) 
 
            imageList.BorderThickness = New Thickness(5, 5, 5, 5) 
 
            ' Create three items 
            Dim imagesPath As String = LeadtoolsExamples.Common.ImagesPath.Path 
            Dim items As ObservableCollection(Of IImageListItem) = New ObservableCollection(Of IImageListItem)() 
 
            For i As Integer = 0 To 2 
               ' Load the image 
               Dim index As Integer = i + 1 
               Dim imageFileName As String = imagesPath & "Image" & index.ToString() & ".jpg" 
 
               Dim item As MyImageListItem = New MyImageListItem() 
               item.Source = New BitmapImage(New Uri(imageFileName)) 
               item.Text = "item" & index.ToString() 
               item.Uri = New Uri(imageFileName) 
 
               ' Add the item to the image list 
               items.Add(item) 
            Next i 
 
            imageList.ItemsSource = items 
 
            ' Add the ImageList to the Window. 
            Content = imageList 
         End Sub 
      End Class 
 
      Public Sub ImageList_IImageListItem(ByVal title As String) 
         Dim window As MyWindow1 = New MyWindow1(title) 
         window.Show() 
      End Sub

Requirements

Target Platforms

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Leadtools.Windows.Controls Assembly
Introduction
Getting Started
Namespaces
Leadtools.Windows.Controls Namespace
Classes
Enumerations
Interfaces
IImageListItem
Members
Properties
Leadtools.Windows.Printing Namespace
Assemblies
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