I have a number of small PowerPoint files in my resources folder and I want to open them. I'm having issues doing this as my Resource.sendToPPTTemp is of type byte[] and to open the file I need it as a string. Is there a way I can open a file from resources as a string?
var file = Resources.sendToPPTTemp;
ppnt.Application ppntApplication = new ppnt.Application();
var _assembly = Assembly.GetExecutingAssembly();
var myppnt = ppntApplication.Presentations.Open(file.ToString());
ppntApplication.Visible = MsoTriState.msoTrue;
You need to give the path to your file to the Open method, not the binary representation. Either you have the path and pass it to the method or you have to create a file with your byte[].
I'd rather create a folder with all your PPT and store in your resource file the path to that folder. Then you can use the first method:
var di = new DirectoryInfo(Resources.PPTFolderPath);
foreach(var file in di.GetFiles())
{
var myppnt = ppntApplication.Presentations.Open(fi.FullName);
ppntApplication.Visible = MsoTriState.msoTrue;
[..]
}
But if you really want to store your PPT in the resource file, you can do it like this, with a temporary file for example:
var tmpPath = Path.GetTempFileName();
try
{
File.WriteAllBytes(tmpPath, Resources.sendToPPTTemp);
var myppnt = ppntApplication.Presentations.Open(tmpPath);
ppntApplication.Visible = MsoTriState.msoTrue;
[..]
}
finally
{
// you have to delete your tmp file at the end!!!
// probably not the better way to do it because I guess the program does not block on Open.
// Better store the file path into a list and delete later.
var fi = new FileInfo(tmpPath);
fi.Delete();
}
Related
I've work with large XML Files (~1000000 lines, 34mb) that are stored in a ZIP archive. The XML file is used at runtime to store and load app settings and measurements. The gets loadeted with this function:
public static void LoadFile(string path, string name)
{
using (var file = File.OpenRead(path))
{
using (var zip = new ZipArchive(file, ZipArchiveMode.Read))
{
var foundConfigurationFile = zip.Entries.First(x => x.FullName == ConfigurationFileName);
using (var stream = new StreamReader(foundConfigurationFile.Open()))
{
var xmlSerializer = new XmlSerializer(typeof(ProjectConfiguration));
var newObject = xmlSerializer.Deserialize(stream);
CurrentConfiguration = null;
CurrentConfiguration = newObject as ProjectConfiguration;
AddRecentFiles(name, path);
}
}
}
}
This works for most of the time.
However, some files don't get read to the end and i get an error that the file contains non valid XML. I used
foundConfigurationFile.ExtractToFile();
and fount that the readed file stops at line ~800000. But this only happens inside this code. When i open the file via editor everything is there.
It looks like the zip doesnt get loaded correctly, or for that matter, completly.
Am i running in some limitations? Or is there an error in my code i don't find?
The file is saved via:
using (var file = File.OpenWrite(Path.Combine(dirInfo.ToString(), fileName.ToString()) + ".pwe"))
{
var zip = new ZipArchive(file, ZipArchiveMode.Create);
var configurationEntry = zip.CreateEntry(ConfigurationFileName, CompressionLevel.Optimal);
var stream = configurationEntry.Open();
var xmlSerializer = new XmlSerializer(typeof(ProjectConfiguration));
xmlSerializer.Serialize(stream, CurrentConfiguration);
stream.Close();
zip.Dispose();
}
Update:
The problem was the File.OpenWrite() method.
If you try to override a file with this method it will result in a mix between the old file and the new file, if the new file is shorter than the old file.
File.OpenWrite() doenst truncate the old file first as stated in the docs
In order to do it correctly it was neccesary to use the File.Create() method. Because this method truncates the old file first.
So I'm making a Cosmos OS and I am having some trouble. I have this code that makes a file. what it does is it asks What is the name of the file and extension then what is the files contents then makes the file. The Problem is is that it only saves to main directory of 0:\ and doesn't work when you make a file while in a directory like 0:\TEST. This is the code I have for the file creator. I want to know if it's possible to make it save the file to the directory you are currently in.
Console.Write("File Name (put in the extension name):");
var finput = Console.ReadLine().ToLower();
string fileName = finput;
// Check if file already exists. If yes, delete it.
if (File.Exists(fileName))
{
File.Delete(fileName);
}
Console.Write("File Contents:\n");
var text = Console.ReadLine().ToLower();
using (FileStream fs = File.Create(fileName))
{
// Add some text to file
Byte[] title = new UTF8Encoding(true).GetBytes(text);
fs.Write(title, 0, title.Length);
}
Console.WriteLine("File Made!");
This may be a late answer, but try this:
var dir = Directory.GetCurrentDirectory;
var file = (filename);
File.Create(dir + "\\" + file);
I haven't checked this code but it should be something like this. This (should) do the same as your code above.
I am trying to append text to a text file, but I can't find anywhere how to actually locate an existing file.
partial void MainBtn_TouchUpInside(UIButton sender)
{
var Pp = ("Selected Form Of Exchange: Paypal");
string mydocpath = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments(WHAT DO I WRITE IN THIS SPACE??);
using (StreamWriter outputFile = new **StreamWriter(Path.Combine(mydocpath, "SelectPayment.txt")))
//I know that the file already exists, I just am trying different things.
{
outputFile.WriteLine(Pp);
}
So what do I do? Thanks
Josh
you specify a file by combining a folder path and a file name to create a file path
// this returns the path to a folder
string path = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments));
// combine that with a file name to create a file path
string file = Path.Combine(path, "myFile.text");
// append text to file
File.AppendAllText(file, "this is the text I want to append);
string zipPath = #"D:\books\"+fileinfo.DccFileName;
string extractPath = #"D:\books";
System.IO.Compression.ZipFile.ExtractToDirectory(zipPath, extractPath);
This is a simple piece of code that does exactly what i want it to do: Gets a zip file from d:\books and unzips it into the same directory. Is there any way i can read the filename of the newly created file (considering that there is only one file in the .zip archive). I would prefer a solution that does not involve reading changes in the directory since other files might be created in it at the same time of the unzip.
You can construct the path by inspecting the archive
var intentedPath = string.Empty;
//open archive
using (var archive = ZipFile.OpenRead(zipPath)) {
//since there is only one entry grab the first
var entry = archive.Entries.First();
//the relative path of the entry in the zip archive
var fileName = entry.FullName;
//intended path once extracted would be
intentedPath = Path.Combine(extractPath, fileName);
}
Is it possible to attach a text file resource to my Winform exe. So when I run the "Form.exe" in another computer then it copy the text file to a specified folder. Please suggest a method to achieve the same. Thanks
If the resource name is a string:
var assembly = Assembly.GetExecutingAssembly();
using (var stream = assembly.GetManifestResourceStream(resourceName))
using (var reader = new StreamReader(stream))
{
string text = reader.ReadToEnd();
File.WriteAllText(fileName, text);
}
else:
File.WriteAllText(fileName, Properties.Resources.TextFile1);
And also make sure that you have set the Build Action of the resource file to "Embedded Resource".
First you need to add your file as a resource in your project.
This explains what to do
Then select your file and in the properties change the "Build Action" to "Embedded Resource". This will now embed your file in your output (.exe).
To extract the file you need to do the following;
String myProject = "Name of your project";
String file = "Name of your file to extract";
String outputPath = #"c:\path\to\your\output";
using (System.IO.Stream stream = System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream(myProject + ".Resources." + file))
{
using (System.IO.FileStream fileStream = new System.IO.FileStream(outputPath + "\\" + file, System.IO.FileMode.Create))
{
for (int i = 0; i < stream.Length; i++)
{
fileStream.WriteByte((byte)stream.ReadByte());
}
fileStream.Close();
}
}
Ideally you should check that the file does not already exist before you do this. Don't forget also to catch exceptions. Which can be very common when dealing with the file system.
Add the text file to your project resources
Properties -> Resources -> Add Resource
Read the data from the resource using
var text = Properties.Resources.textFile;
Write to the file with
File.WriteAllText(#"C:\test\testOut.txt", text);