How to deliver bitmap to the server? - silverlight

Writing my first silverlight application.
I need to deliver some bitmap that the customer will choose ( used OpenFileDialog ) to the server side ( using web service ).
After the customer choosing the bitmap - i cant access the file and break hit to byte array because i dont see the file full path on the OpenFileDialog object properties.
How can i do it ?
( i have method that get Bitmap and return the bitmap as byte array )


I did that before, here is part of it:
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "Images (*.png; *.jpg)| *.png; *.jpg";
dialog.Multiselect = false;
if (dialog.ShowDialog() == true)
{
using (System.IO.Stream stream = dialog.File.OpenRead())
{
BinaryReader binaryReader = new BinaryReader(stream);
// here are the bytes you want, put them somewhere to send them to the server
byte[] imageBytes = binaryReader.ReadBytes((int)stream.Length);
// here is the filename if you need it
string filename = System.IO.Path.GetFileNameWithoutExtension(dialog.File.Name);
stream.Close();
}
}

Related

Reading a docx (binary) from a SQL Server database and convert it into letter (docx)

OK I managed to upload the word DOCX into my SQL Server database into a varbinary (Max) column.
I can retrieve the DOCX from the database and covert it from varbinary back into an array and offer it as a download with:
Byte[] bytes = (Byte[])dt.Rows[0]["TD_DocFile"];
Response.Buffer = true;
Response.Charset = "";
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.ContentType = dt.Rows[0]["TD_DocContentType"].ToString();
Response.AddHeader("content-disposition", "attachment;filename="
+ dt.Rows[0]["TD_DocTitle"].ToString());
Response.BinaryWrite(bytes);
Response.Flush();
Response.End();
Instead of downloading the document I would prefer to use it in variable so I exchange placeholders in it.
I tried to find a way to convert it to a string or so I can use it for docx eg.
DocX letter = this.document();
Best option I saw so far was the filestream version
public static MemoryStream databaseFileRead(string varID) {
MemoryStream memoryStream = new MemoryStream();
using (var varConnection = Locale.sqlConnectOneTime(Locale.sqlDataConnectionDetails))
using (var sqlQuery = new SqlCommand(#"SELECT [RaportPlik] FROM [dbo].[Raporty] WHERE [RaportID] = #varID", varConnection)) {
sqlQuery.Parameters.AddWithValue("#varID", varID);
using (var sqlQueryResult = sqlQuery.ExecuteReader())
if (sqlQueryResult != null) {
sqlQueryResult.Read();
var blob = new Byte[(sqlQueryResult.GetBytes(0, 0, null, 0, int.MaxValue))];
sqlQueryResult.GetBytes(0, 0, blob, 0, blob.Length);
//using (var fs = new MemoryStream(memoryStream, FileMode.Create, FileAccess.Write)) {
memoryStream.Write(blob, 0, blob.Length);
//}
}
}
return memoryStream;
}
But I couldn't convert the binary array bytes nor the memory stream into a variable docx would understand. Maybe I just looked for the wrong conversation. Can someone give me a hint please?
The field is called TD_DocContentType from the database. I can accept that I am weak on the conversion in this instance. I can't see what I am doing wrong. Need a new idea please.
Kind Regards,
Rene

I found the solution for my problem. Took a while and lot of more research to do. I tried to tackle the problem from the wrong angle.
This solution reads the binary field from the database and writes it as a file to an internal web folder called doctemp.
private void download(DataTable dt)
{
var physicalPath = Server.MapPath("~\\doctemp\\{0}");
string outputFileName = string.Format(physicalPath, dt.Rows[0]["TD_DocTitle"]);
filename = outputFileName;
Byte[] bytes = (Byte[])dt.Rows[0]["TD_DocFile"];
File.WriteAllBytes(outputFileName, bytes);
}

Merging XpsDocument for printing

I have an wpf application working on print function for merging multiple xps documents as single. when working it triggers error as "Cannot perform a read operation in write-only mode."
I have load data from memorystream
xpsDoc = new XpsDocument(pack, CompressionOption.SuperFast, inMemPackageName);
and the i have use merging reference
FixedDocumentSequence sourceSequence = doc.GetFixedDocumentSequence();
foreach (DocumentReference dr in sourceSequence.References)
{
DocumentReference newDocumentReference = new DocumentReference();
newDocumentReference.Source = dr.Source;
(newDocumentReference as IUriContext).BaseUri = (dr as IUriContext).BaseUri;
FixedDocument fd = newDocumentReference.GetDocument(true);
newDocumentReference.SetDocument(fd); seqNew.References.Add(newDocumentReference);
}
and then i have used this code to print
XpsDocumentWriterwriter=PrintQueue.CreateXpsDocumentWriter(printQueue);
DocumentPaginator paginator = seqNew.DocumentPaginator;
if (paginator.PageCount == MassPrintings.Count())
{
writer.Write(seqNew);
}
Please Suggest me a solution

Import data from Excel file in Silverlight application

I am using VS2010, Silverlight 5.0
I am trying to Import Data from Excel file to Grid, for that I am using an 'OpenFileDialog'. User can Input Excel file using OpenFileDialog like this
OpenFileDialog dlg = new OpenFileDialog();
dlg.Multiselect = false;
dlg.Filter = "Excel Sheet(*.xls)|*.xls|All Files(*.*)|*.*";
bool bResult = (bool)dlg.ShowDialog();
if (!bResult)
return "";
FileInfo info = dlg.File;
StatusText.Text = info.Name;
Stream s = info.OpenRead();
StreamReader reader = new StreamReader(s);
string xml = reader.ReadToEnd();
var doc = XDocument.Parse(xml);
In Case of Microsoft Excel Format 2003 or 2007(.xls file) above code works fine and gives me values from Excel in a string.
But in case of Microsoft Excel Format 2010(.xlsx file) the reader.ReadToEnd() does not return values in proper format so the next line, give me following Error.
var doc = XDocument.Parse(xml);
'Data at the root level is invalid. Line 1, position 1'
How can I solve this error, or what is the best way to import data from excel?

How can I track the after save event in word ? there is no existing DocumentAfterSave Event ?? Silverlight app

This is my sample source code :
dynamic dlg = objWord.Dialog(objWord.Dialog.WdWordDialog.wdDialogFileSaveAs);
Nullable<bool> result = dlg.ShowDialog();
//Process save file dialog box results
if (result == true)
{
// Save document
string filename = dlg.SafeFileName;
MessageBox.Show(filename);
}
Do i need to use the Microsoft.Office.Interop.dll? It's not running on my workstation, I used silverlight 5 beta..
Thank You :)

Printing a WPF FlowDocument

I'm building a demo app in WPF, which is new to me. I'm currently displaying text in a FlowDocument, and need to print it.
The code I'm using looks like this:
PrintDialog pd = new PrintDialog();
fd.PageHeight = pd.PrintableAreaHeight;
fd.PageWidth = pd.PrintableAreaWidth;
fd.PagePadding = new Thickness(50);
fd.ColumnGap = 0;
fd.ColumnWidth = pd.PrintableAreaWidth;
IDocumentPaginatorSource dps = fd;
pd.PrintDocument(dps.DocumentPaginator, "flow doc");
fd is my FlowDocument, and for now I'm using the default printer instead of allowing the user to specify print options. It works OK, except that after the document prints, the FlowDocument displayed on screen has changed to to use the settings I specified for printing.
I can fix this by manually resetting everything after I print, but is this the best way? Should I make a copy of the FlowDocument before I print it? Or is there another approach I should consider?

yes, make a copy of the FlowDocument before printing it. This is because the pagination and margins will be different. This works for me.
private void DoThePrint(System.Windows.Documents.FlowDocument document)
{
// Clone the source document's content into a new FlowDocument.
// This is because the pagination for the printer needs to be
// done differently than the pagination for the displayed page.
// We print the copy, rather that the original FlowDocument.
System.IO.MemoryStream s = new System.IO.MemoryStream();
TextRange source = new TextRange(document.ContentStart, document.ContentEnd);
source.Save(s, DataFormats.Xaml);
FlowDocument copy = new FlowDocument();
TextRange dest = new TextRange(copy.ContentStart, copy.ContentEnd);
dest.Load(s, DataFormats.Xaml);
// Create a XpsDocumentWriter object, implicitly opening a Windows common print dialog,
// and allowing the user to select a printer.
// get information about the dimensions of the seleted printer+media.
System.Printing.PrintDocumentImageableArea ia = null;
System.Windows.Xps.XpsDocumentWriter docWriter = System.Printing.PrintQueue.CreateXpsDocumentWriter(ref ia);
if (docWriter != null && ia != null)
{
DocumentPaginator paginator = ((IDocumentPaginatorSource)copy).DocumentPaginator;
// Change the PageSize and PagePadding for the document to match the CanvasSize for the printer device.
paginator.PageSize = new Size(ia.MediaSizeWidth, ia.MediaSizeHeight);
Thickness t = new Thickness(72); // copy.PagePadding;
copy.PagePadding = new Thickness(
Math.Max(ia.OriginWidth, t.Left),
Math.Max(ia.OriginHeight, t.Top),
Math.Max(ia.MediaSizeWidth - (ia.OriginWidth + ia.ExtentWidth), t.Right),
Math.Max(ia.MediaSizeHeight - (ia.OriginHeight + ia.ExtentHeight), t.Bottom));
copy.ColumnWidth = double.PositiveInfinity;
//copy.PageWidth = 528; // allow the page to be the natural with of the output device
// Send content to the printer.
docWriter.Write(paginator);
}
}

You can use the code from the URL below, it wraps the flow document in a fixed document and prints that, the big advantage is that you can use it to add margin, headers and footers.
https://web.archive.org/web/20150502085246/http://blogs.msdn.com:80/b/fyuan/archive/2007/03/10/convert-xaml-flow-document-to-xps-with-style-multiple-page-page-size-header-margin.aspx

The following works with both text and non-text visuals:
//Clone the source document
var str = XamlWriter.Save(FlowDoc);
var stringReader = new System.IO.StringReader(str);
var xmlReader = XmlReader.Create(stringReader);
var CloneDoc = XamlReader.Load(xmlReader) as FlowDocument;
//Now print using PrintDialog
var pd = new PrintDialog();
if (pd.ShowDialog().Value)
{
CloneDoc.PageHeight = pd.PrintableAreaHeight;
CloneDoc.PageWidth = pd.PrintableAreaWidth;
IDocumentPaginatorSource idocument = CloneDoc as IDocumentPaginatorSource;
pd.PrintDocument(idocument.DocumentPaginator, "Printing FlowDocument");
}

I am also generating a WPF report off a Flow document, but I am purposely using the flow document as a print preview screen. I there for want the margins to be the same. You can read about how I did this here.
In your scenario I'm thinking why not just make a copy of your settings, instead of the entire flow document. You can then re-apply the settings if you wish to return the document back to it's original state.

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