Nevron .NET Vision
Framework / Web Forms / Response Types / Image Response Type

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    Image Response Type
    In This Topic
    This topic applies only for non-AJAX modes.
    The image response type is represented by the NImageResponse class deriving from NResponse (the base of all response objects). When the chart generates an image response it will send an img HTML tag pointing to a temporary image file generated on the server.
     Modifying The Image Type

    The type of the generated image is defined by the object contained in the ImageFormat property of the NImageResponse object. It can be one of the following:


    Class Image Type Available options
    NBitmapImageFormat Windows Bitmap Bits per pixel
    NGifImageFormat GIF Bits per pixel
    NJpegImageFormat JPEG Bits per pixel, quality
    NPngImageFormat PNG Bits per pixel
    NTiffImageFormat TIFF Bits per pixel
    NSvgImageFormat SVG Compress, EmbedImagesInSvg, EmbeddedImageFormat
    AddSvgHeader, EnableInteractivity, CustomScript


    The following code will change the default response type to true color JPEG with quality parameter set to 90 percent:

    Copy Code
    NImageResponse imageResponse = new NImageResponse();
    NJpegImageFormat jpegImageFormat = new NJpegImageFormat();
    jpegImageFormat.Quality = 90;
    jpegImageFormat.PixelFormat = PixelFormat.Format32bppArgb;
    imageResponse.ImageFormat = jpegImageFormat;
    //[theComponent] is a valid instance of either NChartControl or NDrawingView
    [theComponent].ServerSettings.BrowserResponseSettings.DefaultResponse = imageResponse;
    Visual Basic
    Copy Code
    Dim imageResponse As New NImageResponse
    Dim jpegImageFormat As New NJpegImageFormat
    jpegImageFormat.Quality = 90
    jpegImageFormat.PixelFormat = PixelFormat.Format32bppArgb
    imageResponse.ImageFormat = jpegImageFormat
    '[theComponent] is a valid instance of either NChartControl or NDrawingView
    [theComponent].ServerSettings.BrowserResponseSettings.DefaultResponse = imageResponse