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AutoDeselectItems Property

Summary

Enables or disables de-selecting items when mouse button is clicked.

Syntax

C++

public bool AutoDeselectItems { get; set; }

Public Property AutoDeselectItems As Boolean

public: 
property bool AutoDeselectItems { 
   bool get(); 
   void set (    bool ); 
}

Property Value

true to enable de-selecting; false otherwise.

Remarks

This property is used only if SelectionMode is set to RasterImageListSelectionMode.Multi.

Example

This example shows how to select (rubber band) and deselect multiple items with a mouse button. Run the sample, and select two or more items. Then click the mouse button to deselect all items.

using Leadtools.WinForms; 
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Drawing; 
 
class MyForm6 : Form 
{ 
   public RasterImageList imageList; 
   RasterCodecs codecs; 
 
   public MyForm6() 
   { 
      // Set the size of the form 
      Size = new Size(500, 200); 
 
      // Create a new RasterImageList control 
      imageList = new RasterImageList(); 
      imageList.Dock = DockStyle.Fill; 
      imageList.SelectionMode = RasterImageListSelectionMode.Single; 
      imageList.Size = Size; 
      Controls.Add(imageList); 
      imageList.BringToFront(); 
 
      codecs = new RasterCodecs(); 
 
      // Create three items 
      string imagesPath = LEAD_VARS.ImagesDir; 
 
      for (int i = 0; i < 3; i++) 
      { 
         // Load the image 
         int index = i + 1; 
         string imageFileName = Path.Combine(imagesPath, @"ImageProcessingDemo\Image" + index.ToString() + ".cmp"); 
         RasterImage image = codecs.Load(imageFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1); 
         RasterImageListItem item = new RasterImageListItem(image, 1, "Item" + index.ToString()); 
 
         // Select the first item 
         if (i == 0) 
            item.Selected = true; 
 
         // Add the item to the image list 
         imageList.Items.Add(item); 
      } 
 
 
      // Add the RasterImageList to the control collection. 
      Controls.Add(imageList); 
   } 
} 
 
public void RasterImageList_AutoDeselectItems() 
{ 
   MyForm6 form = new MyForm6(); 
 
   // Enable rubber band multi select 
   form.imageList.EnableRubberBandSelection = true; 
 
   // Enable the AutoDeselectItems 
   form.imageList.AutoDeselectItems = true; 
   form.imageList.SelectionMode = RasterImageListSelectionMode.Multi; 
 
   form.Text = "Drag mouse to select two images.  Then single-click to de-select."; 
 
   form.ShowDialog(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
}

Imports Leadtools.WinForms 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.Drawing 
 
Private Class MyForm6 : Inherits Form 
   Public imageList As RasterImageList 
   Private codecs As RasterCodecs 
 
   Public Sub New() 
      ' Set the size of the form 
      Size = New Size(500, 200) 
 
      ' Create a new RasterImageList control 
      imageList = New RasterImageList() 
      imageList.Dock = DockStyle.Fill 
      imageList.SelectionMode = RasterImageListSelectionMode.Single 
      imageList.Size = Size 
      Controls.Add(imageList) 
      imageList.BringToFront() 
 
      codecs = New RasterCodecs() 
 
      ' Create three items 
      Dim imagesPath As String = LEAD_VARS.ImagesDir 
 
      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() & ".cmp") 
         Dim image As RasterImage = codecs.Load(imageFileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1) 
         Dim item As RasterImageListItem = New RasterImageListItem(image, 1, "Item" & index.ToString()) 
 
         ' Select the first item 
         If i = 0 Then 
            item.Selected = True 
         End If 
 
         ' Add the item to the image list 
         imageList.Items.Add(item) 
      Next i 
 
 
      ' Add the RasterImageList to the control collection. 
      Controls.Add(imageList) 
   End Sub 
End Class 
 
Public Sub RasterImageList_AutoDeselectItems() 
   Dim form As MyForm6 = New MyForm6() 
 
   ' Enable rubber band multi select 
   form.imageList.EnableRubberBandSelection = True 
 
   ' Enable the AutoDeselectItems 
   form.imageList.AutoDeselectItems = True 
   form.imageList.SelectionMode = RasterImageListSelectionMode.Multi 
 
   form.Text = "Drag mouse to select two images.  Then single-click to de-select." 
 
   form.ShowDialog() 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class

Requirements

Target Platforms

Reference

RasterImageList Class

RasterImageList Members

Help Version 19.0.2017.10.27

Leadtools.WinForms Assembly

Introduction

Getting Started

Namespaces

Leadtools.WinForms Namespace

Assemblies