report viewer pass image from form possible?

Question

Using visual Studio ultimate 2012.

Im currently building a report to be printed in report viewer. so far i have a bunch of text boxes that Gets its values from my form text boxes via parameters.

So far all works fine.

Then I hit a major problem. How do you pass an Image From my images on my form to an image on a report? 1 image pre exists on a database i beleive i can call into the image as a parameter(not sure). the bigger issue is the other image.

The other image uses an external API that generates QR images. this image is displayed in a picture box on my form at runtime. I am not saving the image anywhere i would prefer not too. BUT i understand if i may need to. Is there any way at all i can pass the QR image from the image box on my form to my report Image box?

Update heres the code for the error:

Microsoft.Reporting.WinForms.ReportParameter rpIMG1 = new Microsoft.Reporting.WinForms.ReportParameter("paramQRimg", base64String);
Microsoft.Reporting.WinForms.ReportParameter rpIMG2 = new Microsoft.Reporting.WinForms.ReportParameter("paramQRMi", "image/png");

reportViewer1.LocalReport.SetParameters(new Microsoft.Reporting.WinForms.ReportParameter[] { rp1, rp2, rp3, rp4, rp5, rp6, rp7, rp8, rp9, rp10, rpIMG1, rpIMG2 });

Error occurs on the set Parameters part all it says is:

An error occurred during local report processing.

no idea why it doesn't like this

Mantellone

set your parameter as one by one reportViewer.LocalReport.SetParameters(paramLogo); – Strom

Answer 1

 public string ImageToBase64(Image image, 
  System.Drawing.Imaging.ImageFormat format)
{
  using (MemoryStream ms = new MemoryStream())
  {
    // Convert Image to byte[]
    image.Save(ms, format);
    byte[] imageBytes = ms.ToArray();

    // Convert byte[] to Base64 String
    string base64String = Convert.ToBase64String(imageBytes);
    return base64String;
  }
}

Convert your image to base64 string and then pass it to your report as parameter and then set the Report image to this parameter.

Strom

sorry just looked at this again i dont see where my image is called? my image is generated at runtime and put into the picture box on my form. what would the filename be? – Mantellone

@StevenSmith ok, try the updated function to convert into base 64 – Strom

right created the method, created a parameter and passed the string into it(all on form). in the report i Have an image i set the "usethisimage" to Parameters!paramQRimg.Value. it errors sayin no definition. i then decide to create a parameter on the report which works fine, then pass it into my image box just like my textboxes, no error but no image iether, i did notice when setting the type of parameter it only had primitive types, no image. any idea how to set the report part? – Mantellone

that i did as the parameter it is a text but no image is displayed – Mantellone

ok, replace some part of your base64 string before passing it to report. that is like string base64 = base64.Replace("data:image/png;base64,", ""); @StevenSmith – Strom

pass the updated string to report parameter, i hope it will work and its last thing i have – Strom

@StevenSmith if your problem is not solved, than check this thread #37193 – Strom

no change :( just getting an X box top right of the image as usual – Mantellone

@StevenSmith #37193 – Strom

ok from the information there =System.Convert.FromBase64String(Parameters!paramQRimg.Value) This when i hit ok in the image "usethisdifield" it has <<Expr>> MMI on the other hand =Parameters!paramQRmi.Value comes out at [@paramQRmi] the report allows this but still no image displayed – Mantellone

@StevenSmith no need to use its image to base64 convert method, just do else – Strom

Ok relised i never called the 2nd paramter that deals with the MII. I called this but an error occurs. the error itself has no information it simply says an error occured Ive updated my post – Mantellone

satishjdotnet.blogspot.com/2009/03/… another technique to display image on reports @StevenSmith – Strom

@lemunk: I've same issue, I'tried as you described here, but that not worked for me please check my question here – Diseuse

Answer 2

 private void header()
    {
        try
        {
            string name = "";
            string address = "";
            string phone = "";
            string mobile = "";
            string establish = "";

            db.sql.Close();
            db.sql.Open();
            SqlCommand cmd = new SqlCommand("select * from print_head", db.sql);
            SqlDataReader read = cmd.ExecuteReader();
            while (read.Read())
            {
                name = read[1].ToString();
                address = read[2].ToString();
                phone = read[3].ToString();
                mobile = read[4].ToString();
                establish = read[5].ToString();
                MemoryStream ms = new MemoryStream((byte[])read[6]);
                logo = Image.FromStream(ms);
                try
                {

                        // Convert Image to byte[]

                        byte[] imageBytes = ms.ToArray();

                        // Convert byte[] to Base64 String
                        base64String = Convert.ToBase64String(imageBytes);

                }
                catch(Exception ex)
                {
                    MessageBox.Show(ex.ToString());
                }
            }
            ReportParameterCollection r = new ReportParameterCollection();
            r.Add(new ReportParameter("name", name.ToString()));
            r.Add(new ReportParameter("address", address.ToString()));
            r.Add(new ReportParameter("phone", phone.ToString()));
            r.Add(new ReportParameter("mobile", mobile.ToString()));
            r.Add(new ReportParameter("establish", establish.ToString()));
            r.Add(new ReportParameter("logo", base64String.ToString()));

            this.reportViewer1.LocalReport.SetParameters(r);
            db.sql.Close();
        }
        catch
        {

        }
    }

Becalmed

Answer 3

this is worked for Me:

ReportParameter rp = new ReportParameter("ImagePath",new Uri(yourImagePath).AbsoluteUri ));

and in report designer set picture property Source: external

Lawley