I am declaring an NSMutable Attributed String and appending different attributed strings to it. These attributed string may contain images as NSTextattachments.
var historyText : NSMutableAttributedString = NSMutableAttributedString(string: "")
let imageAttachment = NSTextAttachment()
imageAttachment.image = UIImage(named: "some_image")
imageAttachment.bounds = CGRect(x:0, y:-3.0, width: (imageAttachment.image?.size.width)!, height:(imageAttachment.image?.size.height)!)
let imageString = NSAttributedString(attachment: imageAttachment)
historyText.append(imageString)
I then save this attributed text in core data. But when i retrieve this attributed text from core data, the imageAttachment.bounds are lost.
Please suggest a way to preserve these bounds.
Thanks in advance.
Related
Hi i want to set a text to three textblocks from service url
"http://www.findyourfate.com/rss/yearly-horoscope.asp?sign=Aries",which is a single string,
I just want to split three strings and setting the text to three textblocks of
text1,text2,text3.idone setting why i'm splitting means in single textblock not displaying full content because of this reason i thought to split into three strings.for first text block what i neede to display has been done sucessfulyy ,I tried to set for rest of the textblock but i'm stuck please help me to resolve this issue.I'm begginer to this windows 8 development please help me.
try
{
XDocument xmlDoc = XDocument.Parse(e.Result);
var result = xmlDoc.Descendants("channel");
List<xmlList> _xmList = new List<xmlList>();
foreach (var item in result)
{
var node = item.Descendants("item");
//XDocument xdoc = XDocument.Load(e.Result);
foreach (var xElememt in node)
{
string description = xElememt.Element("description").Value;
MessageBox.Show("" + description.Length);
string input = description;
int pattern = input.IndexOf("CAREER");
int pattern1 = input.IndexOf("RELATIONSHIP");
int pattern2 = input.IndexOf("FINANCE");
string str1 = input.Substring(0,pattern);
string str2 = input.Substring(pattern,pattern1);
string str3 = input.Substring(pattern2);
text1.Text = str1;
text2.Text = str2;
text3.Text = str3;
}
You could use the String.Split Method in order to split a string.
Reference: C# Split A String By Another String
You don't have need to split the string and also no need to use three textblocks,
You can use RichTextBox control to show the information.
It will show your full content of description
use the bellow code with scrollbar in .xaml page
<ScrollViewer
VerticalScrollBarVisibility="Visible"
ManipulationMode="Control"
Height="400"
Margin="0,0,0,-13" >
<RichTextBox TextAlignment="Justify"
IsReadOnly="True"
Margin="0,0,0,10">
<Paragraph Foreground="#626262"
FontSize="17"
FontStyle="Normal"
FontFamily="Regular" >
<Run x:Name="txtDescription" />
</Paragraph>
</RichTextBox>
</ScrollViewer>
and set the value of description to txtDescription in .xaml.cs file
txtDescription.Text = xElememt.Element("description").Value;
I want to store a large string in PDF document somewhere hidden. Right now I have a hidden text field in which I am writing that text. The problem is that when the string size increased upto 10MB I start getting OutOfMemory errors.
What will be the best way to store some large hidden string/text to PDF document using iTextSharp? That text/string should be retrieved later as well.
Such private data can be stored in PieceInfo dictionaries, also cf. David's answer to the OP's follow-up question.
This answer to the older question "Insert hidden digest in pdf using iText library" shows how to make use of PieceInfo dictionaries in general using iText/Java (differences to iTextSharp/C# should be minimal here).
As the OP talks about data 10 MB and up, he may want to use PDF streams instead of strings.
The DocumentPieceInfo helper class provided in that older answer can be used with PDF streams for BIG DATA like this (again in Java as I'm mostly living on the Java side, and again porting to C# should be easy):
Storing document PieceInfo data
PdfName appName = new PdfName("MYAPP");
PdfName dataName = new PdfName("BigData");
DocumentPieceInfo dpi = new DocumentPieceInfo();
PdfReader reader = new PdfReader(...);
PdfStamper stamper = new PdfStamper(reader, ...);
InputStream in = ... BIG DATA INPUT STREAM ...;
PdfStream stream = new PdfStream(in, stamper.getWriter());
stream.flateCompress();
PdfIndirectObject ref = stamper.getWriter().addToBody(stream);
stream.writeLength();
in.close();
dpi.addPieceInfo(reader, appName, dataName, ref.getIndirectReference());
stamper.close();
Retrieving document PieceInfo data
PdfName appName = new PdfName("MYAPP");
PdfName dataName = new PdfName("BigData");
DocumentPieceInfo dpi = new DocumentPieceInfo();
PdfReader reader = new PdfReader("target/test-outputs/test-with-piece-info.pdf");
PdfObject myDataObject = dpi.getPieceInfo(reader, appName, dataName);
myDataObject = PdfReader.getPdfObject(myDataObject);
byte[] myData = PdfReader.getStreamBytes((PRStream)myDataObject)
I have to take an image from my system and save it in the form of bytes to a folder in the server.Than i have to give the path of the .txt file i.e the converted image file to the database by creating a table in it.Finally i want to retrieve it from the database.It should be a windows application.Is this possible?
Yes it is possible...
You are just storing the path of the image file that you created.
The path is just going to be a simple string.
While retrieving, you need to take the path from the database and set it as the image source path to the ImageBox in the windows application.
Example:
for selecting the image file.
string DestinationPath = "D:\\test.jpg";
OpenFileDialog ofd = new OpenFileDialog();
if (ofd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
byte[] bt = File.ReadAllBytes(ofd.FileName);
File.WriteAllBytes(DestinationPath, bt);
}
//Store DestinationPath into the database.
for retrieving and displaying in a PictureBox
string pathFromDatabase = "D:\\test.jpg"; //Retrieve from database
pboxDisplay.Image = Image.FromFile(pathFromDatabase); //Assuming pboxDisplay as the PictureBox control
hope it helps...
try this
from data base
byte bt = File.ReadAllBytes("C:\\test.jpg");
File.WriteAllBytes("C:\\test1.jpg",bt)
" bt " you can upload this byte to Database while retrieving bytes from data base use File.WriteAllbytes ...
I have this code below and trying to populate my pdf with values from the database.
PdfPCell points = new PdfPCell(new Phrase("and is therefore entitled to ", arialCertify));
points.Colspan = 2;
points.Border = 0;
points.PaddingTop = 40f;
points.HorizontalAlignment = 1;//0=Left, 1=Centre, 2=Right
// code below needs attention
var cID = "ALFKI";
var xw = Customers.First(p => p.CustomerID ==cID);
table.AddCell(xw.CompanyName.ToString());
I can not figure out where I am going wrong. When I remove the code under 'code below needs attention' it works but I need the database values.
I am using webmatrix with ItextSharp. If to answer you need further code please let me know.
PdfPCell cell=new PdfPCell(new Phrase(xw.CompanyName.ToString()));
cell.setColspan(numColumns);
table.addCell(cell);
document.add(table);
i would like create the project, reading from Excel and write on pdf and print this pdf.
From Excel file (from cell) read directory where is original pdf on computer or server, and next cell have info what write on the top in second pdf.
And problem is here, original pdf is horizontal, landscape, rotate and my program create copy from original pdf and write info from excel on the top on copy pdf file. But pdf which is landscape is rotate for 270 deegres. This is no OK. For portrait rotation working program OK, copy OK and write on the top of the copy is OK.
Where is my problem in my code.
Code:
public int urediPDF(string inTekst)
{
if (inTekst != "0")
{
string pisava_arialBD = #"..\debug\arial.ttf";
string oldFile = null;
string inText = null;
string indeks = null;
//razbitje stringa
string[] vhod = inTekst.Split('#');
oldFile = vhod[0];
inText = vhod[1];
indeks = vhod[2];
string newFile = #"c:\da\2";
//odpre bralnik pdf
PdfReader reader = new PdfReader(oldFile);
Rectangle size = reader.GetPageSizeWithRotation(reader.NumberOfPages);
Document document = new Document(size);
//odpre zapisovalnik pdf
FileStream fs = new FileStream(newFile + "-" + indeks + ".pdf", FileMode.Create, FileAccess.Write);
PdfWriter writer = PdfWriter.GetInstance(document, fs);
//document.Open();
document.OpenDocument();
label2.Text = ("Status: " + reader.GetPageRotation(reader.NumberOfPages).ToString());
//določi sejo ustvarjanje pdf
PdfContentByte cb = writer.DirectContent;
//izbira pisave oblike
BaseFont bf = BaseFont.CreateFont(pisava_arialBD, BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);
cb.SetColorFill(BaseColor.RED);
cb.SetFontAndSize(bf, 8);
//pisanje teksta v pdf
cb.BeginText();
string text = inText;
//izbira koordinat za zapis pravilnega teksta v pdf (720 stopinj roatacija (ležeče) in 90 stopinj (pokončno))
if (reader.GetPageRotation(1) == 720) //ležeča postavitev
{
cb.ShowTextAligned(1, text, 10, 450, 0);
cb.EndText();
}
else //pokončna postavitev
{
cb.ShowTextAligned(1, text + " - pokončen", 10, 750, 0);
cb.EndText();
}
// create the new page and add it to the pdf
PdfImportedPage page = writer.GetImportedPage(reader, reader.NumberOfPages);
cb.AddTemplate(page, 0, 0);
// close the streams and voilá the file should be changed :)
document.Close();
fs.Close();
writer.Close();
reader.Close();
}
else
{
label2.Text = "Status: Končano zapisovanje";
return 0;
}
return 0;
}
Picture fake pdf:
As explained many times before (ITextSharp include all pages from the input file, Itext pdf Merge : Document overflow outside pdf (Text truncated) page and not displaying, and so on), you should read chapter 6 of my book iText in Action (you can find the C# version of the examples here).
You are using a combination of Document, PdfWriter and PdfImportedPage to split a PDF. Please tell me who made you do it this way, so that I can curse the person who inspired you (because I've answered this question hundreds of times before, and I'm getting tired of repeating myself). These classes aren't a good choice for that job:
you lose all interactivity,
you need to rotate the content yourself if the page is in landscape,
you need to take the original page size into account,
...
Your problem is similar to this one itextsharp: unexpected elements on copied pages. Is there any reason why you didn't read the documentation? If you say: "I didn't have the time", please believe me if I say that I have almost 20 years of experience as a developer, and I've never seen "reading documentation" as a waste of time.
Long story short: read the documentation, replace PdfWriter with PdfCopy, replace AddTemplate() with AddPage().