Alpha Property (Annotation)

Visual Basic
C#

'Declaration
 
Public Overridable Property Alpha As System.Integer

public virtual System.int Alpha {get; set;}

Acceptable values are 0 to 255.

C#

using GrapeCity.ActiveReports.Document.Section.Annotations; 
 
rptAnnotations rpt = new rptAnnotations(); 
private void AddAnnotations() 
{ 
   //Run the report first 
   rpt.Run(); 
    
   //Assign the viewer 
   this.viewer1.Document = rpt.Document; 
    
   //Create an annotation and assign property values 
   AnnotationCircle circle = new AnnotationCircle(); 
   circle.Color = System.Drawing.Color.GreenYellow; 
   circle.Border.Color = System.Drawing.Color.Chartreuse;
   circle.Alpha = 150; 
   
   //Add the annotation 
   circle.Attach(1,1); //screen location 
   this.viewer1.Document.Pages[0].Annotations.Add(circle); 
 
   //Set the size properties. The annotation must be added to the page first. 
   circle.Height = 0.25f; 
   circle.Width = 0.50f; 
 
   //Save annotations to an RDF file 
   rpt.Document.Save("C:\\MyAnnotations.rdf"); 
}

Visual Basic

Private rpt As New rptAnnotations()
Private Sub AddAnnotations()
'Run the report first 
rpt.Run()

'Assign the viewer 
Me.viewer1.Document = rpt.Document

'Create an annotation and assign property values 
Dim circle As New AnnotationCircle()
circle.Color = System.Drawing.Color.GreenYellow
circle.Border.Color = System.Drawing.Color.Chartreuse
circle.Alpha = 150

'Add the annotation 
circle.Attach(1, 1)
'screen location 
Me.viewer1.Document.Pages(0).Annotations.Add(circle)

'Set the size properties. The annotation must be added to the page first. 
circle.Height = 0.25F
circle.Width = 0.5F

'Save annotations to an RDF file 
rpt.Document.Save("C:\MyAnnotations.rdf")

End Sub

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

Reference

Annotation Class
Annotation Members