LEADTOOLS WPF and Silverlight (Leadtools.Windows.Controls assembly)

RasterImageListItem Class

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Example 





Members 
Represents an item in a ImageList control containing a LEADTOOLS Leadtools.RasterImage.
Object Model
Syntax
Remarks

The RasterImageListItem class derives from ImageListItem and adds functionality to display a LEADTOOLS Leadtools.RasterImage object in the WPF/Silverlight ImageList control. To display a System.Windows.Media.ImageSource or one of its derived classes, use the ImageListItem class.

In addition to all the features supported by the ImageListItem class, RasterImageListItem adds the following:

Example
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Imports Leadtools.Windows.Controls
Imports Leadtools.Codecs

Private Class MyWindow2 : Inherits Window
    Public imageList As ListBox
    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 ListBox()
        imageList.Width = Double.NaN
        imageList.Height = Double.NaN

        imageList.Items.SortDescriptions.Clear()
        imageList.Background = New RadialGradientBrush(Colors.DarkGray, Colors.LightGray)
        imageList.Items.SortDescriptions.Add(New SortDescription("Text", ListSortDirection.Ascending))

        imageList.BorderThickness = New Thickness(5, 5, 5, 5)


        ' Create three items
        Dim imagesPath As String = LEAD_VARS.ImagesDir
        Try

            Using codecs As RasterCodecs = New RasterCodecs()
                For i As Integer = 0 To 2
                    Dim index As Integer = i + 1
                    Dim imageFileName As String = Path.Combine(imagesPath, "ImageProcessingDemo\Image" & index.ToString() & ".jpg")

                    Dim item As RasterImageListItem = New RasterImageListItem()
                    item.Uri = New Uri(imageFileName)
                    item.Text = imageFileName
                    item.ShowText = True

                    item.Image = codecs.Load(imageFileName)
                    item.ImageSize = New Size(120, 120)
                    item.Width = 150
                    item.Height = 150
                    item.SelectedBackground = Brushes.White
                    item.SelectedForeground = Brushes.Blue

                    ' Select the first item
                    If i = 0 Then
                        item.IsSelected = True
                    End If

                    ' Add the item to the image list
                    imageList.Items.Add(item)
                Next i
            End Using
        Catch ex As Exception
            MessageBox.Show(ex.Message)
        Finally
        End Try

        ' Add the ImageList to the Window.
        Content = imageList
    End Sub
End Class

Public Sub ImageListItem_RasterImageListItem(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;
using Leadtools.Codecs;

class MyWindow2 : Window
{
   public ImageList imageList;
   public MyWindow2(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.Items.SortDescriptions.Clear();
      imageList.Background = new RadialGradientBrush(Colors.DarkGray, Colors.LightGray);
      imageList.Items.SortDescriptions.Add(new SortDescription("Text", ListSortDirection.Ascending));

      imageList.BorderThickness = new Thickness(5, 5, 5, 5);


      // Create three items
      string imagesPath = LEAD_VARS.ImagesDir;
      try
      {

         using (RasterCodecs codecs = new RasterCodecs())
         {
            for (int i = 0; i < 3; i++)
            {
               int index = i + 1;
               string imageFileName = Path.Combine(imagesPath, @"ImageProcessingDemo\Image" + index.ToString() + ".jpg");

               RasterImageListItem item = new RasterImageListItem();
               item.Uri = new Uri(imageFileName);
               item.Text = imageFileName;
               item.ShowText = true;

               item.Image = codecs.Load(imageFileName);
               item.ImageSize = new Size(120, 120);
               item.Width = 150;
               item.Height = 150;
               item.SelectedBackground = Brushes.White;
               item.SelectedForeground = Brushes.Blue;

               // Select the first item
               if (i == 0)
                  item.IsSelected = true;

               // Add the item to the image list
               imageList.Items.Add(item);
            }
         }
      }
      catch (Exception ex)
      {
         MessageBox.Show(ex.Message);
      }
      finally
      {
      }

      // Add the ImageList to the Window.
      Content = imageList;
   }
}

public void ImageListItem_RasterImageListItem(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;
using Leadtools.Codecs;

class MyWindow2 : ChildWindow
{
   public ListBox imageList;
   public MyWindow2(string title)
   {
      Title = title;
      // Set the size of the window
      Width = 400;
      Height = 200;

      // Create a new ImageList control.
      imageList = new ListBox();
      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;
      try
      {
         RasterCodecs codecs = new RasterCodecs();
         for (int i = 0; i < 3; i++)
         {
            int index = i + 1;
            string imageFileName = imagesPath + "Image" + index.ToString() + ".jpg";

            RasterImageListItem item = new RasterImageListItem();
            item.Uri = new Uri(imageFileName);
            item.Text = imageFileName;
            item.ShowText = true;

            item.Image = codecs.Load(imageFileName);
            item.ImageSize = new Size(120, 120);
            item.Width = 150;
            item.Height = 150;
            item.SelectedBackground = new SolidColorBrush(Colors.White);
            item.SelectedForeground = new SolidColorBrush(Colors.Blue);

            // Select the first item
            if (i == 0)
               item.IsSelected = true;

            // Add the item to the image list
            imageList.Items.Add(item);
         }
      }
      catch (Exception ex)
      {
         MessageBox.Show(ex.Message);
      }
      finally
      {
      }

      // Add the ImageList to the Window.
      Content = imageList;
   }
}

public void ImageListItem_RasterImageListItem(string title)
{
   MyWindow1 window = new MyWindow1(title);
   window.Show();
}
Imports Leadtools.Windows.Controls
Imports Leadtools.Codecs

Private Class MyWindow2 : Inherits ChildWindow
   Public imageList As ListBox
   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 ListBox()
      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
      Try
         Dim codecs As RasterCodecs = New RasterCodecs()
         For i As Integer = 0 To 2
            Dim index As Integer = i + 1
            Dim imageFileName As String = imagesPath & "Image" & index.ToString() & ".jpg"

            Dim item As RasterImageListItem = New RasterImageListItem()
            item.Uri = New Uri(imageFileName)
            item.Text = imageFileName
            item.ShowText = True

            item.Image = codecs.Load(imageFileName)
            item.ImageSize = New Size(120, 120)
            item.Width = 150
            item.Height = 150
            item.SelectedBackground = New SolidColorBrush(Colors.White)
            item.SelectedForeground = New SolidColorBrush(Colors.Blue)

            ' Select the first item
            If i = 0 Then
               item.IsSelected = True
            End If

            ' Add the item to the image list
            ImageList.Items.Add(item)
         Next i
      Catch ex As Exception
         MessageBox.Show(ex.Message)
      Finally
      End Try

      ' Add the ImageList to the Window.
      Content = ImageList
   End Sub
End Class

Public Sub ImageListItem_RasterImageListItem(ByVal title As String)
   Dim window As MyWindow1 = New MyWindow1(title)
   window.Show()
End Sub
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:Leadtools_Windows_Controls="clr-namespace:Leadtools.Windows.Controls;assembly=Leadtools.Windows.Controls"
x:Class="ScrollStyle.Window1"
x:Name="Window"
Title="Window1"
Width="640" Height="480" xmlns:Microsoft_Windows_Themes="clr-namespace:Microsoft.Windows.Themes;assembly=PresentationFramework.Classic">
    <DockPanel>
       <Leadtools_Windows_Controls:ImageList Margin="8,46,8,196" HorizontalContentAlignment="Center" VerticalContentAlignment="Top" 
                                             Orientation="Vertical" ShowText="False" ItemForeground="#FF000000" ItemStyle="Normal" 
                                             ItemBorderThickness="2,2,2,2" ItemMargin="0,0,0,0" ItemSize="120,128" ItemImageSize="102,102" 
                                             DockPanel.Dock="Left">
          <Leadtools_Windows_Controls:RasterImageListItem Image="file:///c:\users\Public\Documents\LEADTOOLS Images\Image1.cmp"/>
          <Leadtools_Windows_Controls:RasterImageListItem Image="file:///c:\users\Public\Documents\LEADTOOLS Images\Ocr1.tif"/>
       </Leadtools_Windows_Controls:ImageList>
    </DockPanel>
 </Window>
Requirements

Target Platforms

See Also

Reference

RasterImageListItem Members
Leadtools.Windows.Controls Namespace
RasterImage and WPF/Silverlight

 

 


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