Hi folks I am new to C# using the following code I get a file in use error. If I double click on the ISO file from explorer it does open. Not sure what I am missing here if I can manually open the ISO why does my code not open it?
code:
private void btnOpenISO_Click(object sender, EventArgs e)
{
listBox2.Items.Clear();
OpenFileDialog openFileDialog1 = new OpenFileDialog();
openFileDialog1.InitialDirectory = Path.GetPathRoot(Environment.SystemDirectory);
openFileDialog1.Filter = "ISO files (*.iso)|*.iso|All files (*.*)|*.*";
openFileDialog1.Multiselect = false;
openFileDialog1.FilterIndex = 1;
openFileDialog1.ShowDialog();
using (FileStream fs = File.Open(openFileDialog1.FileName, FileMode.Open))
{
CDReader cd = new CDReader(fs, true, true);
foreach (var dir in cd.Root.GetDirectories())
{
listBox2.Items.Add(dir.Name);
// Console.WriteLine(dir.Name);
}
}
}
Related
I am trying to create a Word file and download the created file in clients browser.
The creation part seems to work fine and I can open the file manually from its Folder.
But the downloaded file in browser does not open correctly and produces an error
"The file is corrupt and cannot be opened"
I am using the code from here
Microsoft instructions for downloading a file in Blazor
My code seems like this
private async Task CreateAndDownloadWordFile()
{
var destination = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
var fileName = destination + "\\test12.docx";
//SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Create(destination, SpreadsheetDocumentType.Workbook);
using (WordprocessingDocument doc = WordprocessingDocument.Create
(fileName, DocumentFormat.OpenXml.WordprocessingDocumentType.Document))
{
// Add a main document part.
MainDocumentPart mainPart = doc.AddMainDocumentPart();
// Create the document structure and add some text.
mainPart.Document = new Document();
Body body = mainPart.Document.AppendChild(new Body());
Paragraph para = body.AppendChild(new Paragraph());
Run run = para.AppendChild(new Run());
// String msg contains the text, "Hello, Word!"
run.AppendChild(new Text("New text in document"));
}
var fileStream = GetFileStream();
using var streamRef = new DotNetStreamReference(stream: fileStream);
await JS.InvokeVoidAsync("downloadFileFromStream", fileName, streamRef);
}
private Stream GetFileStream()
{
var randomBinaryData = new byte[50 * 1024];
var fileStream = new MemoryStream(randomBinaryData);
return fileStream;
}
And I use this Javascript code
async function downloadFileFromStream(fileName, contentStreamReference) {
const arrayBuffer = await contentStreamReference.arrayBuffer();
const blob = new Blob([arrayBuffer]);
const url = URL.createObjectURL(blob);
triggerFileDownload(fileName, url);
URL.revokeObjectURL(url);
}
function triggerFileDownload(fileName, url) {
const anchorElement = document.createElement('a');
anchorElement.href = url;
anchorElement.download = fileName ?? '';
anchorElement.click();
anchorElement.remove();
}
Any ideas?
But the downloaded file in browser does not open correctly
That is probably because you
First create a Word document
And then download var randomBinaryData = new byte[50 * 1024];
the downloaded file in browser
Check those. Are they exactly 50 * 1024 bytes ?
--
Also, you shouldn't pass the full C:\... path to the download funtion.
var fileStream = File.OpenRead(filename);
using var streamRef = new DotNetStreamReference(stream: fileStream);
//await JS.InvokeVoidAsync("downloadFileFromStream", fileName, streamRef);
await JS.InvokeVoidAsync("downloadFileFromStream", "suggestedName", streamRef);
Why am I getting this error? I'm trying to extract information from a bank statement PDF and tally different bills for the month. I write the data from a PDF to a text file so I can get specific data from the file (e.g. ASPEN HOME IMPRO, then iterate down to what the dollar amount is, then read that text line to a string)
When the Files.readAllLines(Path.get("bankData").get(0) code is run, I get the error. Any thoughts why? Encoding issue?
Here is the code:
public static void main(String[] args) throws IOException {
File file = new File("C:\\Users\\wmsai\\Desktop\\BankStatement.pdf");
PDFTextStripper stripper = new PDFTextStripper();
BufferedWriter bw = new BufferedWriter(new FileWriter("bankData"));
BufferedReader br = new BufferedReader(new FileReader("bankData"));
String pdfText = stripper.getText(Loader.loadPDF(file)).toUpperCase();
bw.write(pdfText);
bw.flush();
bw.close();
LineNumberReader lineNum = new LineNumberReader(new FileReader("bankData"));
String aspenHomeImpro = "PAYMENT: ACH: ASPEN HOME IMPRO";
String line;
while ((line = lineNum.readLine()) != null) {
if (line.contains(aspenHomeImpro)) {
int lineNumber = lineNum.getLineNumber();
int newLineNumber = lineNumber + 4;
String aspenData = Files.readAllLines(Paths.get("bankData")).get(0); //This is the code with the error
System.out.println(newLineNumber);
break;
} else if (!line.contains(aspenHomeImpro)) {
continue;
}
}
}
So I figured it out. I had to check the properties of the text file in question (I'm using Eclipse) to figure out what the actual encoding of the text file was.
Then, when creating the file in the program, encode the text file to UTF-8 so that Files.readAllLines could read and grab the data I wanted to get.
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 am downloading a file from a url and saving it to a directory on my phone.
the path is: /private/var/mobile/Applications/17E4F0B0-0781-4259-B39D-37057D44B778/Documents/samplefile.txt
However, when i debug the file is created and downloaded. But, when i ad-hoc it and run the file. samplefile.txt is created but it's blank.
Code:
String directory = Environment.GetFolderPath (Environment.SpecialFolder.MyDocuments);
var filename = Path.Combine (directory, "samplefile.txt");
if (!File.Exists (filename)) {
File.Create (filename);
var webClient = new WebClient ();
webClient.DownloadStringCompleted += (s, e) => {
var text = e.Result; // get the downloaded text
File.WriteAllText (filename, text);
};
var url = new Uri (/**myURL**/);
webClient.Encoding = Encoding.UTF8;
webClient.DownloadStringAsync (url);
I modified your sample slightly and the following works for me.
The StreamReader is only there just to re-read in the contents of the file to confirm that its the same contents in the file as that of the downloaded file:-
If you put a breakpoint there also you can manually inspect same contents as downloaded.
string directory = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);
var filename = Path.Combine(directory, "samplefile.txt");
if (!File.Exists(filename))
{
var webClient = new WebClient();
webClient.DownloadStringCompleted += (s, e) =>
{
// Write contents of downloaded file to device:-
var text = e.Result; // get the downloaded text
StreamWriter sw = new StreamWriter(filename);
sw.Write(text);
sw.Flush();
sw.Close();
sw = null;
// Read in contents from device and validate same as downloaded:-
StreamReader sr = new StreamReader(filename);
string strFileContentsOnDevice = sr.ReadToEnd();
System.Diagnostics.Debug.Assert(strFileContentsOnDevice == text);
};
var url = new Uri("**url here**, UriKind.Absolute);
webClient.Encoding = Encoding.UTF8;
webClient.DownloadStringAsync(url);
}
Inside an Eclipse plugin, I'd like to open a file in editor.
I know the full package and class name
How can I determine the path of the .java file from this?
Take a look at IJavaProject.findType( name ) method. Once you have an IType, you can use getPath or getResource methods to locate the file. This method searches across a project and everything visible from that project.
To search the whole workspace, iterate through all the Java projects in the workspace, calling the findType method on each in turn.
You also need to know the source folder.
IProject prj = ResourcePlugin.getWorkspace().getRoot().getProject("project-name");
IFile theFile = prj.getFile(sourceFolder + packageName.replace('.','/') + className + ".java");
Generally you specify the file for an editor with an IFile. You can also ask an IFile for variants of the file's path.
I know this is a bit old but I had the same need and I had a look at how eclipse does it for stack trace elements (they have a hyperlink on them). The code is in org.eclipse.jdt.internal.debug.ui.console.JavaStackTraceHyperlink (the link is "lazy" so the editor to open is resolved only when you click on it).
What it does is it first searches for the type in the context of the launched application, then for in the whole workspace (method startSourceSearch) :
IType result = OpenTypeAction.findTypeInWorkspace(typeName, false);
And then opens the associated editor (method processSearchResult, source is the type retrieved above) :
protected void processSearchResult(Object source, String typeName, int lineNumber) {
IDebugModelPresentation presentation = JDIDebugUIPlugin.getDefault().getModelPresentation();
IEditorInput editorInput = presentation.getEditorInput(source);
if (editorInput != null) {
String editorId = presentation.getEditorId(editorInput, source);
if (editorId != null) {
try {
IEditorPart editorPart = JDIDebugUIPlugin.getActivePage().openEditor(editorInput, editorId);
if (editorPart instanceof ITextEditor && lineNumber >= 0) {
ITextEditor textEditor = (ITextEditor)editorPart;
IDocumentProvider provider = textEditor.getDocumentProvider();
provider.connect(editorInput);
IDocument document = provider.getDocument(editorInput);
try {
IRegion line = document.getLineInformation(lineNumber);
textEditor.selectAndReveal(line.getOffset(), line.getLength());
} catch (BadLocationException e) {
MessageDialog.openInformation(JDIDebugUIPlugin.getActiveWorkbenchShell(), ConsoleMessages.JavaStackTraceHyperlink_0, NLS.bind("{0}{1}{2}", new String[] {(lineNumber+1)+"", ConsoleMessages.JavaStackTraceHyperlink_1, typeName})); //$NON-NLS-2$ //$NON-NLS-1$
}
provider.disconnect(editorInput);
}
} catch (CoreException e) {
JDIDebugUIPlugin.statusDialog(e.getStatus());
}
}
}
}
Code has copyright from eclipse. Hopfully I'm allowed to reproduced it if this is mentionned.