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CanSelectAll Property
See Also  Example
Leadtools.Annotations Namespace > AnnAutomation Class : CanSelectAll Property



Gets a value indicating whether this AnnAutomation is in a state where all objects can be selected.

Syntax

Visual Basic (Declaration) 
Public Overridable ReadOnly Property CanSelectAll As Boolean
Visual Basic (Usage)Copy Code
Dim instance As AnnAutomation
Dim value As Boolean
 
value = instance.CanSelectAll
C# 
public virtual bool CanSelectAll {get;}
C++/CLI 
public:
virtual property bool CanSelectAll {
   bool get();
}

Return Value

true if all objects in this AnnAutomation can be selected; otherwise, false.

Example

This example adds a few objects into an automation and then selects and deselects them.

Visual BasicCopy Code
Public Sub AnnAutomation_CanSelectAll(ByVal automation As AnnAutomation)
   ' first make sure no objects are in this automation container
   automation.Container.Objects.Clear()
   automation.Viewer.Invalidate()
   MessageBox.Show(String.Format("CanSelectAll = {0}, CanSelectNone = {1}", automation.CanSelectAll, automation.CanSelectNone))

   ' add two objects to the automation
   Dim rectObj As AnnRectangleObject = New AnnRectangleObject()
   rectObj.Bounds = New AnnRectangle(100, 100, 100, 100, AnnUnit.Pixel)
   rectObj.Pen = New AnnPen(Color.Blue, New AnnLength(1, AnnUnit.Pixel))
   rectObj.Brush = Nothing
   automation.Container.Objects.Add(rectObj)
   automation.Viewer.Invalidate(rectObj.InvalidRectangle)

   Dim lineObj As AnnLineObject = New AnnLineObject()
   lineObj.StartPoint = New AnnPoint(100, 100, AnnUnit.Pixel)
   lineObj.EndPoint = New AnnPoint(200, 200, AnnUnit.Pixel)
   lineObj.Pen = New AnnPen(Color.Red, New AnnLength(1, AnnUnit.Pixel))
   automation.Container.Objects.Add(lineObj)
   automation.Viewer.Invalidate(lineObj.InvalidRectangle)

   MessageBox.Show(String.Format("CanSelectAll = {0}, CanSelectNone = {1}", automation.CanSelectAll, automation.CanSelectNone))

   ' select all the objects
   If automation.CanSelectAll Then
      automation.SelectAll()
      MessageBox.Show(String.Format("CanSelectAll = {0}, CanSelectNone = {1}", automation.CanSelectAll, automation.CanSelectNone))
   End If

   ' deselect all the objects
   If automation.CanSelectNone Then
      automation.SelectNone()
      MessageBox.Show(String.Format("CanSelectAll = {0}, CanSelectNone = {1}", automation.CanSelectAll, automation.CanSelectNone))
   End If
End Sub
C#Copy Code
public void AnnAutomation_CanSelectAll(AnnAutomation automation) 
{ 
   // first make sure no objects are in this automation container 
   automation.Container.Objects.Clear(); 
   automation.Viewer.Invalidate(); 
   MessageBox.Show(String.Format("CanSelectAll = {0}, CanSelectNone = {1}", automation.CanSelectAll, automation.CanSelectNone)); 
 
   // add two objects to the automation 
   AnnRectangleObject rectObj = new AnnRectangleObject(); 
   rectObj.Bounds = new AnnRectangle(100, 100, 100, 100, AnnUnit.Pixel); 
   rectObj.Pen = new AnnPen(Color.Blue, new AnnLength(1, AnnUnit.Pixel)); 
   rectObj.Brush = null; 
   automation.Container.Objects.Add(rectObj); 
   automation.Viewer.Invalidate(rectObj.InvalidRectangle); 
 
   AnnLineObject lineObj = new AnnLineObject(); 
   lineObj.StartPoint = new AnnPoint(100, 100, AnnUnit.Pixel); 
   lineObj.EndPoint = new AnnPoint(200, 200, AnnUnit.Pixel); 
   lineObj.Pen = new AnnPen(Color.Red, new AnnLength(1, AnnUnit.Pixel)); 
   automation.Container.Objects.Add(lineObj); 
   automation.Viewer.Invalidate(lineObj.InvalidRectangle); 
 
   MessageBox.Show(String.Format("CanSelectAll = {0}, CanSelectNone = {1}", automation.CanSelectAll, automation.CanSelectNone)); 
 
   // select all the objects 
   if(automation.CanSelectAll) 
   { 
      automation.SelectAll(); 
      MessageBox.Show(String.Format("CanSelectAll = {0}, CanSelectNone = {1}", automation.CanSelectAll, automation.CanSelectNone)); 
   } 
 
   // deselect all the objects 
   if(automation.CanSelectNone) 
   { 
      automation.SelectNone(); 
      MessageBox.Show(String.Format("CanSelectAll = {0}, CanSelectNone = {1}", automation.CanSelectAll, automation.CanSelectNone)); 
   } 
}

Remarks

(Read only) If the AnnAutomation contains one or more AnnObject objects, then this property will return true. Selecting an object in AnnAutomation is the equivalant of starting its AnnEditDesigner.

Call the SelectAll method to select all of the automation objects.

For information about grouping and ungrouping, refer to Grouping and Ungrouping Annotation Objects.

Requirements

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

See Also

Leadtools.Annotations requires a Document or Medical toolkit license and unlock key. For more information, refer to: Imaging Pro/Document/Medical Features