I am using the following piece of code to delete the old PDF and replace the old one with the new one but with no result. Is is possible to perform this operation on PDF files? As, throughout the net I see that these functions are used for .txt,.xls.doc...etc file types. Is there anything wrong with my code? Please help...
private void ListFieldNames(string s)
{
try
{
string pdfTemplate = #"z:\TEMP\PDF\PassportApplicationForm_Main_English_V1.0.pdf";
//var newFile = pdfTemplate;
string newFile = #"z:\TEMP\PDF\_PassportApplicationForm_Main_English_V1.0.pdf";
PdfReader pdfReader = new PdfReader(pdfTemplate);
for (int page = 1; page <= pdfReader.NumberOfPages; page++)
{
//ITextExtractionStrategy its = new iTextSharp.text.pdf.parser.SimpleTextExtractionStrategy();
PdfReader reader = new PdfReader((string)pdfTemplate);
//PdfStamper stamper = new PdfStamper(reader, new FileStream(newFile, FileMode.Create));
using (PdfStamper stamper = new PdfStamper(reader, new FileStream(newFile, FileMode.Create)))
{
AcroFields form = stamper.AcroFields;
var fieldKeys = form.Fields.Keys;
foreach (string fieldKey in fieldKeys)
{
//Replace Address Form field with my custom data
if (fieldKey.Contains("Surname"))
{
form.SetField(fieldKey, s);
}
}
// set form fields
//form.SetField("Address", s);
stamper.FormFlattening = true;
stamper.Close();
}
}
File.Copy(newFile, pdfTemplate);
File.Delete(pdfTemplate);
}
Everything looks good to me, just change:
File.Copy(newFile, pdfTemplate);
File.Delete(pdfTemplate);
change to:
File.Delete(pdfTemplate);
File.Copy(newFile, pdfTemplate);
You can't copy a file if a file already exists at its location with the same name as it.
Delete existing file first.
Related
We are working with DocumentFormat.OpenXml.WordDocument and opening a template of a Wordfile inside the Azure Blob, writing to it and saving it. There are two issues:
During the opening of the Document
using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(streamToWrite, true))
Here the issue is like this ->
DocumentFormat.OpenXml.Packaging.OpenXmlPackageException: 'The stream was not opened for writing.'
If I replaces the IsEditable=trueto false, the issue will go. But the another issue occurs subsequently during the reading of the stream, after the changing the texts.
// Writing the changed document using (StreamWriter sw = new StreamWriter(wordDoc.MainDocumentPart.GetStream(FileMode.OpenOrCreate)))
The Error is like this-> System.ArgumentException: 'Stream was not writable.'
Final Code is like this, which is referred from this link : -https://learn.microsoft.com/en-us/office/open-xml/how-to-search-and-replace-text-in-a-document-part
public async Task<IActionResult> UpdateDocumentAsync([FromBody] ProcessingQuery query)
{
BlobClient readblob = new BlobClient(new Uri("https://XXXXXX/docxviewer/outputviewer/blob.docx?sp=racwd"));
using (HttpClient client = new HttpClient())
{
using (Stream streamToWrite = await client.GetStreamAsync(readblob.Uri))
{
try
{
using (WordprocessingDocument wordDoc = WordprocessingDocument.Open(streamToWrite, false))
{
string docText = null;
using (StreamReader sr = new StreamReader(wordDoc.MainDocumentPart.GetStream()))
{
docText = sr.ReadToEnd();
}
//Writing of Single Queries this will become dictionary key-value pair
Regex regexText1 = new Regex("{first_name}");
docText = regexText1.Replace(docText, query?.first_Name);
Regex regexText2 = new Regex("{last_name}");
docText = regexText2.Replace(docText, query?.last_Name);
Regex regexText3 = new Regex("{phone}");
docText = regexText2.Replace(docText, query?.phone);
// Writing the changed document
using (StreamWriter sw = new StreamWriter(wordDoc.MainDocumentPart.GetStream(FileMode.OpenOrCreate)))
{
sw.Write(docText);
sw.Flush();
sw.Close();
}
wordDoc.Close();
}
}
catch (Exception ex)
{
return BadRequest(ex.Message);
}
streamToWrite.Close();
}
}
return Ok(readblob);
}
Please help us on this codes with relevant codes and documents. If there is any issue in blob storage token Kindly help us in that too.. :)
Good day to Stackoverflow community,
I am in need of some expert assistance. I have an MVC4 web app that has a few rich text box fields powered by TinyMCE. Up until now the system is working great. Last week my client informed me that they want to export the data stored in Microsoft SQL to Excel to run custom reports.
I am able to export the data to excel with the code supplied. However it is exporting the data in RTF rather than Plain text. This is causing issues when they try to read the content.
Due to lack of knowledge and or understanding I am unable to figure this out. I did read that it is possible to use regex to do this however I have no idea how to implement this. So I turn to you for assistance.
public ActionResult ExportReferralData()
{
GridView gv = new GridView();
gv.DataSource = db.Referrals.ToList();
gv.DataBind();
Response.ClearContent();
Response.Buffer = true;
Response.AddHeader("content-disposition", "attachment; filename=UnderwritingReferrals.xls");
Response.ContentType = "application/ms-excel";
Response.AddHeader("Content-Type", "application/vnd.ms-excel");
Response.Charset = "";
Response.Cache.SetCacheability(HttpCacheability.NoCache);
StringWriter sw = new StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
gv.RenderControl(htw);
Response.Output.Write(sw.ToString());
Response.Flush();
Response.End();
return RedirectToAction("Index");
}
I would really appreciate any assistance. and thank you in advance.
I have looked for solutions on YouTube and web forums with out any success.
Kind Regards
Francois Muller
One option you can perform is to massage the Data you write to the XML file.
For example, idenfity in your string and replace it with string.Empty.
Similarly can be replaced with string.Empty.
Once you have identified all the variants of the Rich Text HTML tags, you can just create a list of the Tags, and inside a for FOR loop replace each of them with a suitable string.
Did you try saving the file as .xslx and sending over to the client.
The newer Excel format might handle the data more gracefully?
Add this function to your code, and then you can invoke the function passing it in the HTML string. The return output will be HTML free.
Warning: This does not work for all cases and should not be used to process untrusted user input. Please test it with variants of your input string.
public static string StripTagsCharArray(string source)
{
char[] array = new char[source.Length];
int arrayIndex = 0;
bool inside = false;
for (int i = 0; i < source.Length; i++)
{
char let = source[i];
if (let == '<')
{ inside = true; continue; }
if (let == '>') { inside = false; continue; }
if (!inside) { array[arrayIndex] = let; arrayIndex++; }
}
return new string(array, 0, arrayIndex);
}
So I managed to resolve this issue by changing the original code as follow:
As I'm only trying to convert a few columns, I found this to be working well. This will ensure each records is separated by row in Excel and converts the Html to plain text allowing users to add column filters in Excel.
I hope this helps any one else that has a similar issue.
GridView gv = new GridView();
var From = RExportFrom;
var To = RExportTo;
if (RExportFrom == null || RExportTo == null)
{
/* The actual code to be used */
gv.DataSource = db.Referrals.OrderBy(m =>m.Date_Logged).ToList();
}
else
{
gv.DataSource = db.Referrals.Where(m => m.Date_Logged >= From && m.Date_Logged <= To).OrderBy(m => m.Date_Logged).ToList();
}
gv.DataBind();
foreach (GridViewRow row in gv.Rows)
{
if (row.Cells[20].Text.Contains("<"))
{
row.Cells[20].Text = Regex.Replace(row.Cells[20].Text, "<(?<tag>.+?)(>|>)", " ");
}
if (row.Cells[21].Text.Contains("<"))
{
row.Cells[21].Text = Regex.Replace(row.Cells[21].Text, "<(?<tag>.+?)(>|>)", " ");
}
if (row.Cells[22].Text.Contains("<"))
{
row.Cells[22].Text = Regex.Replace(row.Cells[22].Text, "<(?<tag>.+?)(>|>)", " ");
}
if (row.Cells[37].Text.Contains("<"))
{
row.Cells[37].Text = Regex.Replace(row.Cells[37].Text, "<(?<tag>.+?)(>|>)", " ");
}
if (row.Cells[50].Text.Contains("<"))
{
row.Cells[50].Text = Regex.Replace(row.Cells[37].Text, "<(?<tag>.+?)(>|>)", " ");
}
}
Response.ClearContent();
Response.Buffer = true;
Response.AddHeader("content-disposition", "attachment; filename=Referrals " + DateTime.Now.ToString("dd/MM/yyyy") + ".xls");
Response.ContentType = "application/ms-excel";
Response.ContentEncoding = System.Text.Encoding.UTF8;
Response.AddHeader("Content-Type", "application/vnd.ms-excel");
Response.Charset = "";
Response.Cache.SetCacheability(HttpCacheability.NoCache);
StringWriter sw = new StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
gv.RenderControl(htw);
//This code will export the data to Excel and remove all HTML Tags to pass everything into Plain text.
//I am using HttpUtility.HtmlDecode twice as the first instance changes null values to "Â" the second time it will run the replace code.
//I am using Regex.Replace to change the headings to more understandable headings rather than the headings produced by the Model.
Response.Write(HttpUtility.HtmlDecode(sw.ToString())
.Replace("Cover_Details", "Referral Detail")
.Replace("Id", "Identity Number")
.Replace("Unique_Ref", "Reference Number")
.Replace("Date_Logged", "Date Logged")
.Replace("Logged_By", "File Number")
.Replace("Date_Referral", "Date of Referral")
.Replace("Referred_By", "Name of Referrer")
.Replace("UWRules", "Underwriting Rules")
.Replace("Referred_To", "Name of Referrer")
);
Response.Flush();
Response.End();
TempData["success"] = "Data successfully exported!";
return RedirectToAction("Index");
}
I want to download the files from a sharepoint document library through code as there are thousand of files in the document library.
I am thinking of creating console application, which I will run on sharepoint server and download files. Is this approach correct or, there is some other efficient way to do this.
Any help with code will be highly appreciated.
Like SigarDave said, it's perfectly possible to achieve this without writing a single line of code. But if you really want to code the solution for this, it's something like:
static void Main(string[] args)
{
// Change to the URL of your site
using (var site = new SPSite("http://MySite"))
using (var web = site.OpenWeb())
{
var list = web.Lists["MyDocumentLibrary"]; // Get the library
foreach (SPListItem item in list.Items)
{
if (item.File != null)
{
// Concat strings to get the absolute URL
// to pass to an WebClient object.
var fileUrl = string.Format("{0}/{1}", site.Url, item.File.Url);
var result = DownloadFile(fileUrl, "C:\\FilesFromMyLibrary\\", item.File.Name);
Console.WriteLine(result ? "Downloaded \"{0}\"" : "Error on \"{0}\"", item.File.Name);
}
}
}
Console.ReadKey();
}
private static bool DownloadFile(string url, string dest, string fileName)
{
var client = new WebClient();
// Change the credentials to the user that has the necessary permissions on the
// library
client.Credentials = new NetworkCredential("Username", "Password", "Domain");
var bytes = client.DownloadData(url);
try
{
using (var file = File.Create(dest + fileName))
{
file.Write(bytes, 0, bytes.Length); // Write file to disk
return true;
}
}
catch (Exception)
{
return false;
}
}
another way without using any scripts is by opening the document library using IE then in the ribbon you can click on Open in File Explorer where you can then drag and drop the files right on your desktop!
I have a list, that has three fields: Title, PublishingRollupImage and Description.
I want to upload the image to the library SiteCollectionImages and reference it on the list.
I'm able to upload the file to the folder SiteCollectionImages, and get it's url.
I'm also able to insert the item in the list "MyList", but the PublishingRolloutImage won't persist after the Update() method. I already tried to set the constructor for the ImageFieldValue, like this:
new ImageFieldValue("<img src='test.jpg' />");
but it didn't work.
Here's my code:
using (var site = new SPSite(SPContext.Current.Site.ID))
using (var web = site.OpenWeb())
{
var folder = web.GetFolder("SiteCollectionImages");
var file = folder.Files.Add(fileName, file, true);
folder.Update();
var list = web.Lists["MyList"];
var item = list.Items.Add();
item["Title"] = "MyItemTitle";
item["PublishingRollupImage"] = new ImageFieldValue { ImageUrl = file.Url };
item["Description"] = "MyDescription";
item.Update();
}
What i'm doing wrong?
After a lot of trial and error, i found out that i was doing two things wrong:
this:
item["PublishingRollupImage"] = new ImageFieldValue { ImageUrl = file.Url };
was supposed to be like this:
var image = item["PublishingRollupImage"] as ImageFieldValue ?? new ImageFieldValue();
image.ImageUrl = String.Format("/{0}", file.Url);
item["PublishingRollupImage"] = image;
and file.Url needs to start with a slash. If it doesn't start with a slash, it will break after the Update(); method. That's the reason for the String.Format up there.
Is it possible to add mergefields to an existing .docx document without using interop, only handling with open SDK from CodeBehind?
Yes this is possible, I've created a little method below where you simply pass through the name you want to assign to the merge field and it creates it for you.
The code below is for creating a new document but it should be easy enough to use the method to append to an existing document, hope this helps you:
using System;
using DocumentFormat.OpenXml;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Wordprocessing;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
using (WordprocessingDocument package = WordprocessingDocument.Create("D:\\ManualMergeFields.docx", WordprocessingDocumentType.Document))
{
package.AddMainDocumentPart();
Paragraph nameMergeField = CreateMergeField("Name");
Paragraph surnameMergeField = CreateMergeField("Surname");
Body body = new Body();
body.Append(nameMergeField);
body.Append(surnameMergeField);
package.MainDocumentPart.Document = new Document(new Body(body));
}
}
static Paragraph CreateMergeField(string name)
{
if (!String.IsNullOrEmpty(name))
{
string instructionText = String.Format(" MERGEFIELD {0} \\* MERGEFORMAT", name);
SimpleField simpleField1 = new SimpleField() { Instruction = instructionText };
Run run1 = new Run();
RunProperties runProperties1 = new RunProperties();
NoProof noProof1 = new NoProof();
runProperties1.Append(noProof1);
Text text1 = new Text();
text1.Text = String.Format("«{0}»", name);
run1.Append(runProperties1);
run1.Append(text1);
simpleField1.Append(run1);
Paragraph paragraph = new Paragraph();
paragraph.Append(new OpenXmlElement[] { simpleField1 });
return paragraph;
}
else return null;
}
}
}
You can download the Open Xml Productivity Tool from this url(if you do not already have it)http://www.microsoft.com/download/en/details.aspx?id=5124
This tool has a "Reflect Code" functionality.So you can manually create a merge field in an MS Word document and then open up the document with the Productivity Tool
and see a C# code sample on how to do this in code!It's very effective an I've used this exact tool to create the sample above.Good luck