Change image in picturebox when exporting to pdf

[Mattias]

Hi,
I need to change the image when exporting to pdf because I want the image to be 300 dpi when printing and 72 when viewing on the webpage.
I have tried this with no success:

private void pictureBox1_ItemDataBound(object sender, EventArgs e)
        {
            HttpContext context = System.Web.HttpContext.Current;
            System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Profit));
            if (context != null)
                pictureBox1.Value = ((object)resources.GetObject("logo72dpi"));
            else
                pictureBox1.Value = ((object)resources.GetObject("logo300dpi"));
        }

The report is called Profit and the images is in projects resource file.
Can you help me?

/Mattias

[Steve]

Hello Mattias,

There are a couple of problems here:

1. System.Web.HttpContext would never be null when you're in the context of a web page i.e. you're showing the report in a web report viewer. So you need a different check.
2. You're using the definition picturebox item, when you should be using the processing one when you're in an event. More info is available in this help article.

Here is the code I've tried on my end that is working:

private void pictureBox1_ItemDataBound(object sender, EventArgs e)
        {

            Processing.PictureBox pic = sender as Processing.PictureBox;

            HttpContext context = System.Web.HttpContext.Current;
            System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Testing));
            this.bg1 = (Image)resources.GetObject("1");
            this.bg2 = (Image)resources.GetObject("2");

            pic.Image = this.bg1;

            if (context != null)
            {
                string exportFormat = context.Request.QueryString["ExportFormat"];
                if ((exportFormat != "MHTML") && (exportFormat != null))
                {
                    pic.Image = this.bg2;
                }
            }

        }

where bg1 and bg2 are defined images.
Greetings,
Steve
the Telerik team

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