I have list of files saved in a folder and i am putting this logic to get them in a array..still it is showing just the first name can u please help me out..
filePath = Environment.getExternalStorageDirectory() + "/openedpages/";
file = new File(filePath);
if (file.exists()) {
filenew = file.listFiles();
for (int i = 0; i < file.listFiles().length; i++) {
arr = new ArrayList<String>();
arr.add(filenew[i].getName());
}
System.out.println("print arr " + arr);
}
Thanks
please keep arr = new ArrayList(); out of for lop and try.
Related
I'm trying to merge all my text files into one file.
The problem I am having is that the file names are based on data previously captured in my app. I don't know how to define my path to where the text files are, maybe. I keep getting a error, but the path to the files are correct.
What am I missing?
string filesread = System.AppDomain.CurrentDomain.BaseDirectory + #"\data\Customers\" + CustComboB.SelectedItem + #"\";
Directory.GetFiles(filesread);
using (var output = File.Create("allfiles.txt"))
{
foreach (var file in new[] { filesread })
{
using (var input = File.OpenRead(file))
{
input.CopyTo(output);
}
}
}
System.Diagnostics.Process.Start("allfiles.txt");
my error:
System.IO.DirectoryNotFoundException
HResult=0x80070003
Message=Could not find a part of the path 'C:\Users\simeo\source\repos\UpMarker\UpMarker\bin\Debug\data\Customers\13Dec2018\'.
I cant post a pic, but let me try and give some more details on my form.
I select a combobox item, this item is a directory. then I have a listbox that displays the files in my directory. I then have a button that executes my desires of combining the files. thanks
I finally got it working.
string path = #"data\Customers\" + CustComboB.SelectedItem;
string topath = #"data\Customers\";
string files = "*.txt";
string[] txtFiles;
txtFiles = Directory.GetFiles(path, files);
using (StreamWriter writer = new StreamWriter(topath + #"\allfiles.txt"))
{
for (int i = 0; i < txtFiles.Length; i++)
{
using (StreamReader reader = File.OpenText(txtFiles[i]))
{
writer.Write(reader.ReadToEnd());
}
}
System.Diagnostics.Process.Start(topath + #"\allfiles.txt");
}
I'm having trouble getting the text from the page.
Object reference error not set to an instance of an object, in the bold line.
String extractText = PdfTextExtractor.GetTextFromPage(pdfReader, i);
Follow the code below
var pdfText = new StringBuilder();
using (var pdfReader = new PdfReader(cbPdf.SelectedValue + ""))
{
for (var i = 0; i <= pdfReader.NumberOfPages; i++)
{
String extractText = PdfTextExtractor.GetTextFromPage(pdfReader, i);
extractText = Encoding.UTF8.GetString(Encoding.Convert(Encoding.Default, Encoding.UTF8, Encoding.Default.GetBytes(extractText)));
pdfText.Append(extractText);
}
}
rtxtTexto.Text = pdfText.ToString();
iText numbers pages 1-based, i.e. the first page has number 1.
You already did take that into account at the end of your loop (by comparing using <=), merely not at the start (where you start at 0).
Thus,
for (var i = 1; i <= pdfReader.NumberOfPages; i++)
That being said, as far as I know your line
extractText = Encoding.UTF8.GetString(Encoding.Convert(Encoding.Default, Encoding.UTF8, Encoding.Default.GetBytes(extractText)));
is nonsense.
I am programmatically creating InfoPath forms in a form library within SharePoint 2010 from data in a CSV file. It all works fine apart from the date fields. The form will refuse to open with a format error. I have tried multiple ways of formatting the date but no luck so far. Code below...
If I format 2016-10-10 then it does show in the Forms Library view but I still can not open the form. It just shows a datatype error.
// Get the data from CSV file.
string[,] values = LoadCsv("ImportTest.csv");
//Calulate how many columns and rows in the dataset
int countCols = values.GetUpperBound(1) + 1;
int countRows = values.GetUpperBound(0) + 1;
string rFormSite = "siteurl";
// opens the site
SPWeb webSite = new SPSite(rFormSite).OpenWeb();
// gets the blank file to copy
SPFile BLANK = webSite.Folders["EventSubmissions"].Files["Blank.xml"];
// reads the blank file into an xml document
MemoryStream inStream = new MemoryStream(BLANK.OpenBinary());
XmlTextReader reader = new XmlTextReader(inStream);
XmlDocument xdBlank = new XmlDocument();
xdBlank.Load(reader);
reader.Close();
inStream.Close();
//Get latest ID from the list
int itemID = GetNextID(webSite, "EventSubmissions");
if (itemID == -1) return;
//Iterate each row of the dataset
for (int row = 1; row < countRows; row++)
{
//display current event name
Console.WriteLine("Event name - " + values[row, 4]);
XmlDocument xd = xdBlank;
XmlElement root = xd.DocumentElement;
//Cycling through all columns of the document//
for (int col = 0; col < countCols; col++)
{
string field = values[0, col];
string value = values[row, col];
switch (field)
{
case "startDate":
value = //How do format the date here ;
break;
case "endDate":
value = "";
break;
case "AutoFormID":
value = itemID.ToString();
break;
}
XmlNodeList nodes = xd.GetElementsByTagName("my:" + field);
foreach (XmlNode node in nodes)
{
node.InnerText = value;
}
}
// saves the XML Document back as a file
System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
SPFile newFile = webSite.Folders["EventSubmissions"].Files.Add(itemID.ToString() + ".xml", (encoding.GetBytes(xd.OuterXml)), true);
itemID++;
}
Console.WriteLine("Complete");
Console.ReadLine();
Thanks
For me this worked
DateTime.Now.ToString("yyyy-MM-dd")
I have 60 PDF files I would like to show (Print) in single PDF. I have already tried googling it but it was no use for me, as all PDF append in to a single page. How do I resolve this (I'm an new to this)
Here is my code:
var jasperPrint1 = JasperFillManager.fillReport(jasperReport1, params1, new JREmptyDataSource());
var pages = jasperPrint1.getPages();
for( j <- 0 to pages.size()-1){
var obj = pages.get(j)
jasperPrint.addPage(obj)
}
var outDir: String = java.lang.System.getProperty("user.dir");
separator = java.io.File.separator;
outDir = outDir + separator + "public" + separator + "sample.pdf"
var baos = new java.io.ByteArrayOutputStream();
JasperExportManager.exportReportToPdfStream(jasperPrint, baos);
var outputStream = new java.io.FileOutputStream(outDir);
baos.writeTo(outputStream);
I open with epplus an excel file.
After reading some data, I would like to close the package:
pck.Stream.Close()
pck.Dispose()
Unfortunatelly the excel file is still blocked. I need to close the whole application to get the excel file unlocked.
I have googled, but found nothing useful except the above.
How are you opening the file? The following creates, saves, reopens, prints, and finally deletes all withing the same thread without issue. I can even set a breakpoint anywhere and delete the file. Reading the file this way should not lock the file since it is pulled into memory:
[TestMethod]
public void OpenReopenPrintDeleteTest()
{
//Create some data
var existingFile = new FileInfo(#"c:\temp\temp.xlsx");
if (existingFile.Exists)
existingFile.Delete();
using (var package = new ExcelPackage(existingFile))
{
var workbook = package.Workbook;
workbook.Worksheets.Add("newsheet");
package.Save();
}
using (var package = new ExcelPackage(existingFile))
{
var workbook = package.Workbook;
var worksheet = workbook.Worksheets.First();
//The data
worksheet.Cells["A1"].Value = "Col1";
worksheet.Cells["A2"].Value = "sdf";
worksheet.Cells["A3"].Value = "ghgh";
worksheet.Cells["B1"].Value = "Col2";
worksheet.Cells["B2"].Value = "Group B";
worksheet.Cells["B3"].Value = "Group A";
worksheet.Cells["C1"].Value = "Col3";
worksheet.Cells["C2"].Value = 634.5;
worksheet.Cells["C3"].Value = 274.5;
worksheet.Cells["D1"].Value = "Col4";
worksheet.Cells["D2"].Value = 996440;
worksheet.Cells["D3"].Value = 185780;
package.Save();
}
//Reopen the file
using (var package = new ExcelPackage(existingFile))
{
var workBook = package.Workbook;
if (workBook != null)
{
if (workBook.Worksheets.Count > 0)
{
var currentWorksheet = workBook.Worksheets.First();
var lastrow = currentWorksheet.Dimension.End.Row;
var lastcol = currentWorksheet.Dimension.End.Column;
for (var i = 1; i <= lastrow; i++)
for (var j = 1; j <= lastcol; j++)
Console.WriteLine(currentWorksheet.Cells[i, j].Value);
}
}
}
//Delete the file
existingFile.Delete();
}
I was having the same problem... But I found the solution:
During the "SaveAs" method, I was creating a FileStream that was not being disposed.
Before:
ExcelPackage excel_package = new ExcelPackage(new MemoryStream());
//...
//Do something here
//...
excel_package.SaveAs(new FileStream("filename.xlsx", FileMode.Create));
excel_package.Dispose();
After:
ExcelPackage excel_package = new ExcelPackage(new MemoryStream());
//...
//Do something here
//...
var file_stream = new FileStream("filename.xlsx", FileMode.Create);
excel_package.SaveAs(file_stream);
file_stream.Dispose();
excel_package.Dispose();
Note that the Memory Stream opened during the ExcelPackage declaration was not explicitly disposed, because the last command "excel_package.Dispose()" already does this internally.
Hope it help.
c# excel epplus