LEADTOOLS Annotations (Leadtools.Annotations assembly)
LEAD Technologies, Inc

CanSelectAll Property

Example 





Gets a value indicating whether this AnnAutomation is in a state where all objects can be selected.
Syntax
public virtual bool CanSelectAll {get;}
'Declaration
 
Public Overridable ReadOnly Property CanSelectAll As Boolean
'Usage
 
Dim instance As AnnAutomation
Dim value As Boolean
 
value = instance.CanSelectAll
public virtual bool CanSelectAll {get;}
 get_CanSelectAll(); 
public:
virtual property bool CanSelectAll {
   bool get();
}

Property Value

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

Example
 
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
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));
   }
}
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

See Also

Reference

AnnAutomation Class
AnnAutomation Members

 

 


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