HttpHandlerImageRender Class

In This Topic

The HttpHandlerImageRender renders the chart image to memory using the ChartImageHttpHandler and returns the image Url.

Object Model

Syntax

Visual Basic
C#

'Declaration
 
Public Class HttpHandlerImageRender 
   Inherits ImageRender
   Implements IParallelSupport, ISparklineSupportHandler

'Usage
 
Dim instance As HttpHandlerImageRender

public class HttpHandlerImageRender : ImageRender, IParallelSupport, ISparklineSupportHandler

Remarks

HttpHandlerImageRender is recommended when charts are simple (easy to generate) or when you expect requests for a large number of different charts. HttpHandlerImageRender supplies two ways to save an image on the server, one is saving in HttpContext.Session and another is saving in HttpContext.Cache. An application developer can set the storage means by the ImageTransferStorage property and determine whether to hold the image data or clear it immediately after rendering by using the KeepTransferStorage property.

Inheritance Hierarchy

System.Object
FarPoint.Web.Chart.ImageRender
FarPoint.Web.Chart.HttpHandlerImageRender

Reference

HttpHandlerImageRender Members
FarPoint.Web.Chart Namespace