Displaying Tiff files in SSRS reports

Question

I have a requirement to be be able to embed scanned tiff images into some SSRS reports.

When I design a report in VS2005 and add an image control the tiff image displays perfectly however when I build it. I get the warning :

Warning 2 [rsInvalidMIMEType] The value of the MIMEType property for the image ‘image1’ is “image/tiff”, which is not a valid MIMEType. c:\SSRSStuff\TestReport.rdl 0 0

and instead of an image I get the little red x.

Has anybody overcome this issue?

Answer 1

Assuming you're delivering the image file via IIS, use an ASP.NET page to change image formats and mime type to something that you can use.

Response.ContentType = "image/png";
Response.Clear();
using (Bitmap bmp = new Bitmap(tifFilepath))
  bmp.Save(Response.OutputStream, ImageFormat.Png);
Response.End();

Answer 2

I have been goggling fora solution on how to display a TIFF image in a SSRS report but I couldn't find any and since SSRS doesn's support TIFF, I thought converting the TIFF to one of the suppported format will do the trick. And it did. I don't know if there are similar implementation like this out there, but I am just posting so others could benefit as well. Note this only applies if you have a TIFF image saved on database.

Public Shared Function ToImage(ByVal imageBytes As Byte()) As Byte()
    Dim ms As System.IO.MemoryStream = New System.IO.MemoryStream(imageBytes)
    Dim os As System.IO.MemoryStream = New System.IO.MemoryStream()
    Dim img As System.Drawing.Image = System.Drawing.Image.FromStream(ms)

    img.Save(os, System.Drawing.Imaging.ImageFormat.Jpeg)

    Return os.ToArray()
End Function

Here’s how you can use the code: 1. In the Report Properties, Select Refereneces, click add and browse System.Drawing, Version=2.0.0.0 2. Select the Code Property, Copy paste the function above 3. Click Ok 4. Drop an Image control from the toolbox 4.1. Right-Click the image and select Image Properties 4.2. Set the Image Source to Database 4.3. In the Use this field, Click expression and paste the code below =Code.ToImage(Fields!FormImage.Value)
4.4. Set the appropriate Mime to Jpeg

Regards, Fulbert

Answer 3

Thanks Peter your code didn't compile but the idea was sound.

Here is my attempt that works for me.

protected void Page_Load(object sender, EventArgs e)
{
    Response.ContentType = "image/jpeg";
    Response.Clear();        
    Bitmap bmp = new Bitmap(tifFileLocation);
    bmp.Save(Response.OutputStream, ImageFormat.Jpeg);
    Response.End();

}