Document is printed from MVC controller to Debian Squeeze Linux server printer using code below in Mono.
Page in printer is A4.
Printed text in paper is too big and unsharp. Rightmost part of text is not visible since it does not fit to page.
If printed from Windows from .NET to HP Laserjet, output is correct.
So it looks like Mono or Samsung ML-331x Series printer zooms bitmap for unknown reason which causes too big and unsharp output.
How to fix this so that bitmap is printed like in windows ?
Possible solutions:
Best way would be to print formatted html directly. How to do it in server where there are no browser installed? wkhtmltopdf does not support printing. I posted it in How to print formatted html in Linux server
Maybe it is possible to use wkhtmltopdf convert html to pdf instead of bitmap I posted it as separate question in How to print pdf in debian linux from MVC controller
wkhtmltoimage can produce also other image formats. Maybe some other format is better ?
Maybe some wkhtmltoimage command line swithches like --width=750 or --dpi can fix this ?
public class Test: Controller
{
public ActionResult Print()
{
PrintOrderVormiga();
return new ContentResult() { Content = "OK" };
}
void PrintOrderVormiga()
{
StringBuilder sb = new StringBuilder();
sb.Insert(0, " test ", 500);
var bmp = ConvertHtmlToBMP("<html><body>" +sb.Tostring()+ "</body></html>");
var doc = new PrintDocument();
doc.PrinterSettings.PrinterName = "Samsung ML-331x Series";
doc.PrintPage += new PrintPageEventHandler(ProvideContent);
pageHeight = doc.DefaultPageSettings.PaperSize.Height;
using (bm = new Bitmap(new MemoryStream(bmp)))
{
lehti = (int)Math.Ceiling(bm.Height / (double)pageHeight);
doc.PrinterSettings.FromPage = 1;
doc.PrinterSettings.ToPage = lehti;
pageno = 0;
doc.Print();
}
}
int pageno, lehti;
int pageHeight;
Bitmap bm;
void ProvideContent(object sender, PrintPageEventArgs e)
{
Rectangle cropRect = new Rectangle(0, pageHeight * pageno++,
bm.Width, pageHeight);
Bitmap target = new Bitmap(cropRect.Width, cropRect.Height);
e.Graphics.DrawImage(bm, new Rectangle(0, 0, target.Width, target.Height),
cropRect,
GraphicsUnit.Pixel);
e.HasMorePages = pageno < lehti;
}
static byte[] ConvertHtmlToBMP(string html)
{
string programm = "wkhtmltoimage";
if (Environment.OSVersion.Platform != PlatformID.Win32NT)
{
programm = "wkhtmltoimage-amd64";
}
var p = new Process
{
StartInfo =
{
CreateNoWindow = true,
RedirectStandardOutput = true,
RedirectStandardError = true,
RedirectStandardInput = true,
UseShellExecute = false,
FileName = Environment.OSVersion.Platform == PlatformID.Win32NT ?
"C:\\Program Files\\wkhtmltopdf\\bin\\" + programm + ".exe" : "/usr/bin/" + programm
}
};
p.StartInfo.Arguments = "--format bmp --disable-javascript --quality 10";
p.StartInfo.Arguments += " - -";
p.Start();
using (var stream = p.StandardInput)
{
byte[] ibuffer = System.Text.Encoding.UTF8.GetBytes(html);
stream.BaseStream.Write(ibuffer, 0, ibuffer.Length);
stream.WriteLine();
}
var buffer = new byte[32768];
byte[] file;
using (var ms = new MemoryStream())
{
while (true)
{
var read = p.StandardOutput.BaseStream.Read(buffer, 0, buffer.Length);
if (read <= 0)
{
break;
}
ms.Write(buffer, 0, read);
}
file = ms.ToArray();
}
p.WaitForExit(60000);
var returnCode = p.ExitCode;
p.Close();
return file;
}
}
You can use this HTML to PDF Converter for Mono solution from EvoPdf. The C# code for converting a HTML to PDF in Mono is:
// create the HTML to PDF converter object
HtmlToPdfConverter htmlToPdfConverter = new HtmlToPdfConverter(serverIPAddress, serverPortNumber);
// set service password if necessary
if (serverPassword.Length > 0)
htmlToPdfConverter.ServicePassword = serverPassword;
// set PDF page size
htmlToPdfConverter.PdfDocumentOptions.PdfPageSize = PdfPageSize.A4;
// set PDF page orientation
htmlToPdfConverter.PdfDocumentOptions.PdfPageOrientation = PdfPageOrientation.Portrait;
// convert the HTML page from given URL to PDF in a buffer
byte[] pdfBytes = htmlToPdfConverter.ConvertUrl(urlToConvert);
Related
I have a small png image I like to show in an imageview using Xamarin.Android.
I am downloading the file using the following code:
private void Download()
{
var url = "https://hns.d7u.de/v4/images/hvvstoerungen_facebook.png";
var directory = Environment.GetFolderPath(Environment.SpecialFolder.Personal) + "/myapp/";
var fileName = url.Substring(url.LastIndexOf("/") +1);
var path = directory + fileName;
System.Net.WebClient wC = new System.Net.WebClient();
wC.Headers.Add(System.Net.HttpRequestHeader.AcceptEncoding, "gzip");
wC.DownloadDataCompleted += WC_DownloadDataCompleted;
wC.DownloadDataAsync(new Uri(url), path);
}
private void WC_DownloadDataCompleted(object sender, System.Net.DownloadDataCompletedEventArgs e)
{
var path = e.UserState.ToString();
var bytes = e.Result;
if (File.Exists(path))
File.Delete(path);
if (!File.Exists(path))
File.WriteAllBytes(path, bytes);
}
It is stored at /data/user/0/myapp/files/hns/hvvstoerungen_facebook.png and a File.Exists(...) returns a true for that path. So I am sure, that the file is downloaded and it exists.
When I want to show it in the ImageView, I do it like this:
if (System.IO.File.Exists(imageFilePath))
{
Android.Net.Uri andrUri = Android.Net.Uri.Parse(imageFilePath);
ImageIcon.SetImageURI(andrUri);
//Also not working:
//Bitmap bitmap = BitmapFactory.DecodeFile(imageFilePath);
//ImageIcon.SetImageBitmap(bitmap);
//And also not working:
//Android.Net.Uri andrUri = Android.Net.Uri.Parse(imageFilePath);
//Bitmap bmp = BitmapFactory.DecodeStream(Android.App.Application.Context.ContentResolver.OpenInputStream(andrUri));
//ImageIcon.SetImageBitmap(bmp);
}
The Output windows shows the following when the image should be shown:
02-01 23:41:24.770 E/Drawable(19815): Unable to decode stream:
android.graphics.ImageDecoder$DecodeException: Failed to create image
decoder with message 'unimplemented'Input contained an error. 02-01
23:41:24.770 W/ImageView(19815): resolveUri failed on bad bitmap uri:
/data/user/0/myapp/files/hns/hvvstoerungen_facebook.png
But I cannot figured out what exactly this means.
One additional thing is: If I run the app in a brand new Android Emulator instance, this image and all other of its kind are not shown.
If I run the app in an old Android Emulator instance, where the app was already running before but on Android.Forms basis, the old images that were known by the old project are shown while the newly downloaded images are not. All images are in the same folder and I cannot see any differences between them.
Does anyone has an Idea?
Edit:
My working version has the following Download() Method instead:
private void Download()
{
var noCompression = new string[] { ".png", ".jpg", ".jpeg", ".gif", ".zip", ".7z", ".mp3", ".mp4" };
var url = "https://hns.d7u.de/v4/images/hvvstoerungen_facebook.png";
var directory = Environment.GetFolderPath(Environment.SpecialFolder.Personal) + "/myapp/";
var fileName = url.Substring(url.LastIndexOf("/") +1);
var path = directory + fileName;
System.Net.WebClient wC = new System.Net.WebClient();
if (!noCompression.Contains(url.Substring(url.LastIndexOf('.'))))
wC.Headers.Add(System.Net.HttpRequestHeader.AcceptEncoding, "gzip");
wC.DownloadDataCompleted += WC_DownloadDataCompleted;
wC.DownloadDataAsync(new Uri(url), path);
}
You could try the code below.
Download the image from Url:
public Bitmap GetImageBitmapFromUrl(string url)
{
Bitmap imageBitmap = null;
using (var webClient = new WebClient())
{
var imageBytes = webClient.DownloadData(url);
if (imageBytes != null && imageBytes.Length > 0)
{
imageBitmap = BitmapFactory.DecodeByteArray(imageBytes, 0, imageBytes.Length);
}
}
return imageBitmap;
}
Usage:
bitmap = GetImageBitmapFromUrl("https://hns.d7u.de/v4/images/hvvstoerungen_facebook.png");
And save the image as png:
void ExportBitmapAsPNG(Bitmap bitmap)
{
var folderPath = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);
filePath = System.IO.Path.Combine(folderPath, "test.png");
var stream = new FileStream(filePath, FileMode.Create);
bitmap.Compress(Bitmap.CompressFormat.Png, 100, stream);
stream.Close();
}
Usage:
ExportBitmapAsPNG(bitmap);
Check the file exists or not and set into the imageview:
if (File.Exists(filePath))
{
Bitmap myBitmap = BitmapFactory.DecodeFile(filePath);
imageview.SetImageBitmap(myBitmap);
}
I have 2 files saved on Azure blob storage:
Abc.txt
Pqr.docx
Now i want to create zip files of this 2 files and allow user to download.
I have saved this in my database table field like this:
Document
Abc,Pqr
Now when i click on download then i am getting file like below with no data in it and file extension are lost too like below:
I want user to get exact file(.txt,.docx) in zip when user download zip file.
This is my code:
public ActionResult DownloadImagefilesAsZip()
{
string documentUrl = repossitory.GetDocumentsUrlbyId(id);//output:Abc.txt,Pqr.Docx
if (!string.IsNullOrEmpty(documentUrl))
{
string[] str = documentUrl.Split(',');
if (str.Length > 1)
{
using (ZipFile zip = new ZipFile())
{
int cnt = 0;
foreach (string t in str)
{
if (!string.IsNullOrEmpty(t))
{
Stream s = this.GetFileContent(t);
zip.AddEntry("File" + cnt, s);
}
cnt++;
}
zip.Save(outputStream);
outputStream.Position = 0;
return File(outputStream, "application/zip", "all.zip");
}
}
}
public Stream GetFileContent(string fileName)
{
CloudBlobContainer container = this.GetCloudBlobContainer();
CloudBlockBlob blockBlob = container.GetBlockBlobReference(fileName);
var stream = new MemoryStream();
blockBlob.DownloadToStream(stream);
return stream;
}
public CloudBlobContainer GetCloudBlobContainer()
{
CloudStorageAccount storageAccount = CloudStorageAccount.Parse(ConfigurationManager.AppSettings["StorageConnectionString"].ToString());
CloudBlobClient blobclient = storageAccount.CreateCloudBlobClient();
CloudBlobContainer blobcontainer = blobclient.GetContainerReference("Mystorage");
if (blobcontainer.CreateIfNotExists())
{
blobcontainer.SetPermissions(new BlobContainerPermissions { PublicAccess = BlobContainerPublicAccessType.Blob });
}
blobcontainer.SetPermissions(new BlobContainerPermissions { PublicAccess = BlobContainerPublicAccessType.Blob });
return blobcontainer;
}
I want same file to be downloaded when user download zip file.
Can anybody help me with this??
I'm not a web dev, but hopefully this will help. This snippet of code is in a method where I download a list of blobs into a zip file archive using a stream. The list of files had the slashes in all directions, so there's code in here to fix this, and to make sure I'm getting the blob reference with the right text (no URL, and no opening slash if the blob is in a "folder").
I suspect your problem is not using a memory stream or a binary writer. Specificity helps sometimes. Good luck.
using (ZipArchive zipFile = ZipFile.Open(outputZipFileName, ZipArchiveMode.Create))
{
foreach (string oneFile in listOfFiles)
{
//Need the filename, complete with relative path. Make it like a file name on disk, with backwards slashes.
//Also must be relative, so can't start with a slash. Remove if found.
string filenameInArchive = oneFile.Replace(#"/", #"\");
if (filenameInArchive.Substring(0, 1) == #"\")
filenameInArchive = filenameInArchive.Substring(1, filenameInArchive.Length - 1);
//blob needs slashes in opposite direction
string blobFile = oneFile.Replace(#"\", #"/");
//take first slash off of the (folder + file name) to access it directly in blob storage
if (blobFile.Substring(0, 1) == #"/")
blobFile = oneFile.Substring(1, oneFile.Length - 1);
var cloudBlockBlob = this.BlobStorageSource.GetBlobRef(blobFile);
if (!cloudBlockBlob.Exists()) //checking just in case
{
//go to the next file
//should probably trace log this
//add the file name with the fixed slashes rather than the raw, messed-up one
// so anyone looking at the list of files not found doesn't think it's because
// the slashes are different
filesNotFound.Add(blobFile);
}
else
{
//blob listing has files with forward slashes; that's what the zip file requires
//also, first character should not be a slash (removed it above)
ZipArchiveEntry newEntry = zipFile.CreateEntry(filenameInArchive, CompressionLevel.Optimal);
using (MemoryStream ms = new MemoryStream())
{
//download the blob to a memory stream
cloudBlockBlob.DownloadToStream(ms);
//write to the newEntry using a BinaryWriter and copying it 4k at a time
using (BinaryWriter entry = new BinaryWriter(newEntry.Open()))
{
//reset the memory stream's position to 0 and copy it to the zip stream in 4k chunks
//this keeps the process from taking up a ton of memory
ms.Position = 0;
byte[] buffer = new byte[4096];
bool copying = true;
while (copying)
{
int bytesRead = ms.Read(buffer, 0, buffer.Length);
if (bytesRead > 0)
{
entry.Write(buffer, 0, bytesRead);
}
else
{
entry.Flush();
copying = false;
}
}
}//end using for BinaryWriter
}//end using for MemoryStream
}//if file exists in blob storage
}//end foreach file
} //end of using ZipFileArchive
There are two things I noticed:
Once you read the blob contents in stream, you are not resetting that stream's position to 0. Thus all files in your zip are of zero bytes.
When calling AddEntry, you may want to specify the name of the blob there instead of "File"+cnt.
Please look at the code below. It's a console app that creates the zip file and writes it on the local file system.
static void SaveBlobsToZip()
{
string[] str = new string[] { "CodePlex.png", "DocumentDB.png" };
var account = new CloudStorageAccount(new StorageCredentials(accountName, accountKey), true);
var blobClient = account.CreateCloudBlobClient();
var container = blobClient.GetContainerReference("images");
using (var fs = new FileStream("D:\\output.zip", FileMode.Create))
{
fs.Position = 0;
using (var ms1 = new MemoryStream())
{
using (ZipFile zip = new ZipFile())
{
int cnt = 0;
foreach (string t in str)
{
var ms = new MemoryStream();
container.GetBlockBlobReference(t).DownloadToStream(ms);
ms.Position = 0;//This was missing from your code
zip.AddEntry(t, ms);//You may want to give the name of the blob here.
cnt++;
}
zip.Save(ms1);
}
ms1.Position = 0;
ms1.CopyTo(fs);
}
}
}
UPDATE
Here's the code in the MVC application (though I am not sure it is the best code :) but it works). I modified your code a little bit.
public ActionResult DownloadImagefilesAsZip()
{
string[] str = new string[] { "CodePlex.png", "DocumentDB.png" }; //repossitory.GetDocumentsUrlbyId(id);//output:Abc.txt,Pqr.Docx
CloudBlobContainer blobcontainer = GetCloudBlobContainer();// azureStorageUtility.GetCloudBlobContainer();
MemoryStream ms1 = new MemoryStream();
using (ZipFile zip = new ZipFile())
{
int cnt = 0;
foreach (string t in str)
{
var ms = new MemoryStream();
CloudBlockBlob blockBlob = blobcontainer.GetBlockBlobReference(t);
blockBlob.DownloadToStream(ms);
ms.Position = 0;//This was missing from your code
zip.AddEntry(t, ms);//You may want to give the name of the blob here.
cnt++;
}
zip.Save(ms1);
}
ms1.Position = 0;
return File(ms1, "application/zip", "all.zip");
}
I have seen people using ICSharpZip library, take a look at this piece of code
public void ZipFilesToResponse(HttpResponseBase response, IEnumerable<Asset> files, string zipFileName)
{
using (var zipOutputStream = new ZipOutputStream(response.OutputStream))
{
zipOutputStream.SetLevel(0); // 0 - store only to 9 - means best compression
response.BufferOutput = false;
response.AddHeader("Content-Disposition", "attachment; filename=" + zipFileName);
response.ContentType = "application/octet-stream";
foreach (var file in files)
{
var entry = new ZipEntry(file.FilenameSlug())
{
DateTime = DateTime.Now,
Size = file.Filesize
};
zipOutputStream.PutNextEntry(entry);
storageService.ReadToStream(file, zipOutputStream);
response.Flush();
if (!response.IsClientConnected)
{
break;
}
}
zipOutputStream.Finish();
zipOutputStream.Close();
}
response.End();
}
Taken from here generate a Zip file from azure blob storage files
I have a form with a button that generates a pdf file. The file loops through an array of images and text and insert each image and text on an absolute position of the document. I can add the image, without the text and it works well. I can also add the text without the image and all work well. However, When I add both at the same time, I get the error that
there was an error processing the document.
Here is the code
[HttpPost]
public FileStreamResult ff(MyModel model)
{
MemoryStream workStream = new MemoryStream();
Document doc = new Document();
doc.SetMargins(50, 25, 25, 30);
PdfWriter.GetInstance(doc, workStream).CloseStream = false;
PdfWriter writer = PdfWriter.GetInstance(doc, workStream);
writer.CloseStream = false;
doc.Open();
PdfContentByte cb = writer.DirectContent;
string path = "";
Image Img;
int num = 0;
float imageSize = 160f, margin = 5f, position = 600;
ColumnText ct;
foreach (var item in model)
{
/*ct = new ColumnText(cb);
myText = new Phrase(new Chunk(numbering[num] + " " + item.Caption, FontFactory.GetFont(FontFactory.TIMES, 9, Font.ITALIC)));
ct.SetSimpleColumn(myText, doc.LeftMargin + margin, position + 5f, imageSize, 2, 15, Element.ALIGN_LEFT);
ct.Go();
x += 10;
y += 12;*/
/////The code above and the code below(withing the loop) do not work when they are together but work well when they are not together
path = item.path;
Img = Image.GetInstance(path);
Img.ScaleToFit(imageSize, imageSize);
Img.SetAbsolutePosition(doc.LeftMargin + margin, position);
Img.Border = Rectangle.TOP_BORDER | Rectangle.RIGHT_BORDER | Rectangle.BOTTOM_BORDER | Rectangle.LEFT_BORDER;
Img.BorderWidth = 1f;
doc.Add(Img);
num++;
position -= imageSize;
}
document.Close();
byte[] byteInfo = workStream.ToArray();
workStream.Write(byteInfo, 0, byteInfo.Length);
workStream.Position = 0;
return new FileStreamResult(workStream, "application/pdf");
}
Internet explorer and firefox display an error There was an error processing the page. There was an error reading this document(18).
Chrome does display the page, but the arrangement of the pictures is wrong. The second picture appears first and the last picture fails to show up, but is border is displayed as the last image(like an empty canvas)
what am I doing wrong please?
Does it help if you set the filename of the result?
var result = new FileStreamResult(workStream, "application/pdf");
result.FileDownloadName = "test.pdf";
return result;
I have an MVC 4 application with a button for taking a photo that opens up a new window with javascript which contains a silverlight application in it. The silverlight application can then take a photo using the webcam and store it as a Writeable Bitmap. What I would like to do is then push that bitmap onto an action in my controller for saving to the database and refreshing the view.
I know I need to send the image as a post to my controller, but any code examples or suggestions on how I would go about doing that would be greatly appreciated. I think it should work as follows, Button Click for saving the image in my silverlight application would call a POST to the MVC controller and attach the image stream as a parameter in the controller, and the controller can then take the stream and push it up to the database then I can close the silverlight window. Just not sure how to go about coding that.
You could send the image using a WebClient. Let's suppose that you have the image inside your Silverlight application in a byte array:
byte[] image = ... get the image from your webcam
var client = new WebClient();
var uri = new Uri("http://example.com/photos/upload");
client.OpenWriteCompleted += (sender, e) =>
{
var buffer = (byte[])e.UserState;
e.Result.Write(buffer, 0, buffer.Length);
e.Result.Close();
};
client.OpenWriteAsync(uri, "POST", image);
and on the MVC side:
[HttpPost]
public ActionResult Upload()
{
byte[] image = new byte[Request.InputStream.Length];
Request.InputStream.Read(image, 0, image.Length);
// TODO: do something with the uploaded image here ...
}
Thank you for the reply. This is exactly what I was looking for, however ive run into a problem. Silverlight gives me the webcam snapshot as a WriteableBitmap type. Which I then tried to convert to a byte[] array before sending it over to MVC. It is saving to the database successfully, however it does not appear to be a valid image when I try to pull it back out from the database and display it. Is there an issue that you can see with my conversion code? Or perhaps can I send it over as an image type, or can I only send over byte[] arrays through http posts like this?
In my Silverlight application:
private void SendImage()
{
var client = new WebClient();
var uri = new Uri("http://localhost:4600/GuestBadge/GetCameraImage");
client.OpenWriteCompleted += (sender, e) =>
{
var buffer = (byte[])e.UserState;
e.Result.Write(buffer, 0, buffer.Length);
e.Result.Close();
};
client.OpenWriteAsync(uri, "POST", ToByteArray(SnapShot));
}
public static byte[] ToByteArray(WriteableBitmap bmp)
{
// Init buffer
int w = bmp.PixelWidth;
int h = bmp.PixelHeight;
int[] p = bmp.Pixels;
int len = p.Length;
byte[] result = new byte[4 * w * h];
// Copy pixels to buffer
for (int i = 0, j = 0; i < len; i++, j += 4)
{
int color = p[i];
result[j + 0] = (byte)(color >> 24); // A
result[j + 1] = (byte)(color >> 16); // R
result[j + 2] = (byte)(color >> 8); // G
result[j + 3] = (byte)(color); // B
}
return result;
}
And in my controller:
[HttpPost]
public ActionResult GetCameraImage()
{
byte[] image = new byte[Request.InputStream.Length];
Request.InputStream.Read(image, 0, image.Length);
var getPerson = (from a in db.Persons where a.PersonID == 3 select a).FirstOrDefault();
getPerson.Picture = image;
db.SaveChanges();
return null;
}
I ended up using FJCore http://code.google.com/p/fjcore/ to encode my WriteableBitmap into JPEG and then converted that to BASE64 using code I found at this question Using FJCore to encode Silverlight WriteableBitmap THANKS!. Then in turn converted that out to a byte[] array and sent it to MVC using your code and now its working great. I'm pretty new at all this stuff and didn't quite understand the encoding process enough before. Below is the code I used for this. Thanks again for your help!
private static string GetBase64Jpg(WriteableBitmap bitmap)
{
int width = bitmap.PixelWidth;
int height = bitmap.PixelHeight;
int bands = 3;
byte[][,] raster = new byte[bands][,];
for (int i = 0; i < bands; i++)
{
raster[i] = new byte[width, height];
}
for (int row = 0; row < height; row++)
{
for (int column = 0; column < width; column++)
{
int pixel = bitmap.Pixels[width * row + column];
raster[0][column, row] = (byte)(pixel >> 16);
raster[1][column, row] = (byte)(pixel >> 8);
raster[2][column, row] = (byte)pixel;
}
}
ColorModel model = new ColorModel { colorspace = ColorSpace.RGB };
FluxJpeg.Core.Image img = new FluxJpeg.Core.Image(model, raster);
MemoryStream stream = new MemoryStream();
JpegEncoder encoder = new JpegEncoder(img, 90, stream);
encoder.Encode();
stream.Seek(0, SeekOrigin.Begin);
byte[] binaryData = new Byte[stream.Length];
long bytesRead = stream.Read(binaryData, 0, (int)stream.Length);
string base64String =
System.Convert.ToBase64String(binaryData,
0,
binaryData.Length);
return base64String;
}
private void SendImage()
{
var client = new WebClient();
var uri = new Uri("http://localhost:4600/GuestBadge/GetCameraImage");
client.OpenWriteCompleted += (sender, e) =>
{
var buffer = (byte[])e.UserState;
e.Result.Write(buffer, 0, buffer.Length);
e.Result.Close();
};
client.OpenWriteAsync(uri, "POST", Convert.FromBase64String(GetBase64Jpg(SnapShot)));
}
I'm having a nightmare of a time trying to add a Chart to a MemoryStream in-memory.
I'm creating a Word document on the fly using OpenXML and I have a chart that is also being dynamically generated from data in the database.
I get the template from the database as a byte array, passing that into a method that also takes a business object that holds a bunch of data to populate bookmarks held within that template.
Here's the method:
public Stream Parse(byte[] array, AudiometryReport AudReport)
{
using (MemoryStream Stream = new MemoryStream())
{
Stream.Write(array, 0, (int)array.Length);
Stream.Position = 0;
using (document = WordprocessingDocument.Open(Stream, true))
{
XDocument doc = document.MainDocumentPart.GetXDocument();
List<XElement> bookmarks = doc.Descendants()
.Where(n => n.NodeType == XmlNodeType.Element && n.Name.LocalName == "bookmarkStart")
.ToList();
PropertyInfo[] reportInfo = AudReport.GetType().GetProperties();
foreach (XElement bm in bookmarks)
{
try
{
if (bm.LastAttribute.Value == "AudiometryChart")
{
string partId = InsertImage(document.MainDocumentPart);
var element = AddImageToDocument(document.MainDocumentPart, partId);
//var element = InsertImageXElement(partId);
//bm.ReplaceWith(new XElement(w + "r", element));
}
else
{
string val = reportInfo.Single(x => x.Name == bm.LastAttribute.Value).GetValue(AudReport, null).ToString();
bm.ReplaceWith(new XElement(w + "r",
new XElement(w + "t", val)));
}
}
catch
{ }
}
document.MainDocumentPart.PutXDocument();
//foreach (BookmarkStart bm in (IEnumerable<BookmarkStart>)document.MainDocumentPart.Document.Descendants<BookmarkStart>())
//{
// if (bm.Name == "AudiometryChart")
// {
// // Insert the chart object here.
// //AddImage(document);
// }
// populateStaffDetails(AudReport.Report.Employee, bm);
// populateAudiometryDetails(AudReport, bm);
//}
}
MemoryStream s = new MemoryStream();
Stream.WriteTo(s);
s.Position = 0;
return s;
}
}
The InsertImage image takes the MainDocumentPart and attaches a new ImagePart from the image I stream from the database. I pass the ID of that part back to the calling method.
private string InsertImage(MainDocumentPart docPart)
{
//DrawingsPart dp = docPart.AddNewPart<DrawingsPart>();
//ImagePart part = dp.AddImagePart(ImagePartType.Png, docPart.GetIdOfPart(dp));
ImagePart part = docPart.AddImagePart(ImagePartType.Png);
Chart cht = new ChartBuilder().DoChart(Data, new string[] { "Left", "Right", "Normal" });
using (MemoryStream ms = new MemoryStream())
{
cht.SaveImage(ms, ChartImageFormat.Png);
ms.Position = 0;
part.FeedData(ms);
}
//int count = dp.ImageParts.Count<ImagePart>();
int count = docPart.ImageParts.Count<ImagePart>();
return docPart.GetIdOfPart(part);
}
The last part is some serious nastiness that is allegdly required to add one image to one word document, but what the hell - here it is anyway:
private Run AddImageToDocument(MainDocumentPart docPart, string ImageRelId)
{
string ImageFileName = "Audiometry Chart Example";
string GraphicDataUri = "http://schemas.openxmlformats.org/drawingml/2006/picture";
long imageLength = 990000L;
long imageHeight = 792000L;
var run = new Run(
new Drawing(
new wp.Inline(
new wp.Extent() { Cx = imageLength, Cy = imageHeight },
new wp.EffectExtent()
{
LeftEdge = 19050L,
TopEdge = 0L,
RightEdge = 9525L,
BottomEdge = 0L
},
new wp.DocProperties()
{
Id = (UInt32Value)1U,
Name = "Inline Text Wrapping Picture",
Description = ImageFileName
},
new wp.NonVisualGraphicFrameDrawingProperties(
new a.GraphicFrameLocks() { NoChangeAspect = true }),
new a.Graphic(
new a.GraphicData(
new pic.Picture(
new pic.NonVisualPictureProperties(
new pic.NonVisualDrawingProperties() { Id = (UInt32Value)0U, Name = ImageFileName },
new pic.NonVisualPictureDrawingProperties()),
new pic.BlipFill(
new a.Blip() { Embed = ImageRelId },
new a.Stretch(
new a.FillRectangle())),
new pic.ShapeProperties(
new a.Transform2D(
new a.Offset() { X = 0L, Y = 0L },
new a.Extents() { Cx = imageLength, Cy = imageHeight }),
new a.PresetGeometry(
new a.AdjustValueList()) { Preset = a.ShapeTypeValues.Rectangle }))
) { Uri = GraphicDataUri }))
{
DistanceFromTop = (UInt32Value)0U,
DistanceFromBottom = (UInt32Value)0U,
DistanceFromLeft = (UInt32Value)0U,
DistanceFromRight = (UInt32Value)0U
}
));
return run;
}
So I've solved issues where the memory stream was causing problems by closing prematurely and probably a dozen other unnecessary amateur garden path problems but that image will just not show up in my document. Frustrating. Suggestions or divine inspiration very welcome right now.
(this question has been heavily edited so some answers may not relate to the wording of this question).
I've just tested your AddImageToDocument function in a small test
scenario using the following code:
string partId = ...
Run element = AddImageToDocument(newdoc.MainDocumentPart, partId);
Paragraph p = new Paragraph() { RsidParagraphAddition = "00EA6221", RsidRunAdditionDefault = "008D25CC" };
p.AppendChild(element);
newdoc.MainDocumentPart.Document.Body.Append(p);
// Save the word document here...
Everything works as expected and the image shows up in the word document.
Then I've come to the conclusion that the problem in your code must be the replacement of the bookmarkStart tag and the conversion
of the Run (containing the image) to an XElement.
So, I've modified your code in the following way (using XElement.Parse to convert
an OpenXmlElement to a XElement):
foreach (XElement bm in bookmarks)
{
try
{
if (bm.LastAttribute.Value == "AudiometryChart")
{
string partId = InsertImage(document.MainDocumentPart);
Run element = AddImageToDocument(document.MainDocumentPart, partId);
bm.ReplaceWith(XElement.Parse(element.OuterXml)); // Use XElement.Parse to convert an OpenXmlElement to an XElement.
}
else
{
... }
}
}
catch
{
}
}
The image now shows up in the word document.
Then I've analyzed the word document using the
OpenXml SDK productivity tool and found that the bookmarkEnd tags still exist in the document.
To remove those tags use the following code:
List<XElement> bookmarksEnd = doc.Descendants()
.Where(n => n.NodeType == XmlNodeType.Element && n.Name.LocalName == "bookmarkEnd")
.ToList();
foreach (XElement x in bookmarksEnd)
{
x.Remove();
}
Edit 3: :o)
Ok, I found the problem.
If you initialize the document's MemoryStream with the doc content, the buffer will be fixed in size and not editable. Just changed the init to write the doc content after creation and all seemd to work fine.
//using (MemoryStream stream = new MemoryStream (docxFile))
using (MemoryStream stream = new MemoryStream ())
{
stream.Write (docxFile, 0, docxFile.Length);
stream.Position = 0;
using (WordprocessingDocument docx = WordprocessingDocument.Open (stream, true))
{
[....]
Cheers