Hello there, I'm creating some temporary files in the iPad simulator. To test my file creation, I create the file and then read it back. Here's some code to show this: -(NSString *) writeToTempFile:(UIImage*) image{ NSString *path = [self createTemporaryFile]; NSLog(@"path: %@", path); NSData *data = UIImageJPEGRepresentation(image, 1)...
I'm creating a simple .NET console application where I want to save a file in a folder that's part of the root project, like so: SolutionName.ProjectName\TestData\. I want to put test.xml into the TestData folder. However, when I go to save my XDocument, it saves it to SolutionName.ProjectName\bin\x86\Debug Console\test.xml. What do I...
Which is more expensive to do in terms of resources and efficiency, File read/write operation or Database Read/Write operation ...
So, largely for debugging purposes, I want to be able to write an image at arbitrary points in my code, and look at it later. I figured this would be easiest if I just wrote a my bitmap to a file and read it back later, but I cannot seem to figure out where to find the file after I write it, or how to open an image that is not in res/dra...
I have a Django app that opens a file, continuously reads it, and at the same time writes data to a Postgres database. My issue is that whenever I open a file, file = open(filename, 'r') I am unable to also create new things in the database, Message.objects.create_message(sys, msg) That should create a database entry with two str...
I'm writing a program that will parse an Apache log file periodically to log it's visitors, bandwidth usage, etc.. The problem is, I don't want to open the log and parse data I've already parsed. For example: line1 line2 line3 If I parse that file, I'll save all the lines then save that offset. That way, when I parse it again, I get:...
I have a huge set of files, to all of which there is (should be) a sentinel character (1 byte) appended to the end of file. How can I read the very last byte (to ensure it is the character) and truncate it to size (ie: remove the character)? I know I could read the whole thing, and write it all back minus the last character, but there's...
I can't seem to write a line from a file to a field of a Django model. The field is described in the model as: text = models.TextField(null=True, blank=True, help_text='A status message.') However, when I attempt to create a new object I cannot fill this field using the readline function: file = open(filename, 'r') str = file.readli...
Hi Friends, My file named as test.txt contains This document is divided into about 5 logical sections starting with a feature and structure overview, followed by an overview of built in column and cell types. Next is an overview of working with data, followed by an overview of specific major features. Lastly, a “best practice” section ...
My Project Setup I have the following project setup: \program.jar \images\logo.png In my code, I reference the image with the relative URL "images/logo.png". Problem If I run this program with the following command while in the directory: c:\projects\program_dir\bin\>java -jar program.jar Then everything works and Java is ...
Is there a way to promoting a Read-Only FileStream to Read-Write? I am looking for functionality similar to the Win32 SDK function ReOpenFile. ...
I have a game object that I save like this in OnPause() try { final ObjectOutputStream os = new ObjectOutputStream(openFileOutput(gameName + ".sav", 0)); os.writeObject(gameObject); os.reset(); } catch (final Exception e) { e.printStackTrace(); } This works fine except on some of the older or slower phones it can someti...
How do I get a list of all images in my android device? update: Maybe there is a Content Provicer for all the images on the device.. (studying) update: Getting hot, MediaStore.Images have the information.. now looking for how to get it.. ...
I need to read in an Intel Hex file which looks something like this: :0300000002F8D42F :07000300020096000000005E :07000B000200B50000000037 :030013000200D414 :03001B000200F3ED (Yes, some lines are missing and sometimes 1 line only contains 1 byte) The : is the start code First 2 bytes is the byte count Next 4 are the address in mem...
I am not sure if this is possible... Right now I create various .RDP files that my users download directly off the server, with code such as this: System.IO.FileInfo fileInfo = new System.IO.FileInfo(filePath); Response.Clear(); Response.AddHeader("Content-Disposition", "attachment; filename=" + fileInfo.Name); ...
Hi All, As I am working on Employee Management system, I have two table (for example) in database as given below. EmployeeMaster (DB table structure) EmployeeID (PK) | EmployeeName | City MonthMaster (DB table structure) Month | Year | EmployeeID (FK) | PrenentDays | BasicSalary Now my question is, I want to store data in file sy...
hi, i am getting exception 'file in use by another process' for a xml file when checking system.io.file.exist() & then load it.I am using thread.monitor with this code. Earlier when i was directly loading the xml file & not checking its local existence then i ws not getting thsi exception. Can you please let me know, what's the cause ...
#include <iostream> #include <fstream> #include <cstdlib> using namespace std; const int FILENAME_MAX=20; int main() { ifstream input; char name[FILENAME_MAX + 1]; int value; do { cout << "Enter the filename (maximum of " << (FILENAME_MAX+1) << " characters: "; cin >> name; input.ope...
And please don't say it's fscanf() ;P I'm trying to replace this line: if ( fscanf(fp, "P%c\n", &ch) != 1 ) If I understand correctly, it tries to read in a char and store it to &ch, only if it's between a 'P' and a '\n'. Is that right? And if it succeeds, it returns 1 (the number of characters it read)? I'm trying to come up with ...
Hello, I have some questions about editing files with c#. I have managed to read a file into a byte[]. How can I get the ASCII code of each byte and show it in the text area of my form? Also, how can I change the bytes and then write them back into a file? For example: I have a file and I know the first three bytes are letters. How ...