So I am having some problems with adding a combobox in my java program using javafx. I have seen examples using java swing but nothing really for javafx. I need to do a combobox reading a csv file to give me a list of account numbers that are already saved in that file.
I need actual help with reading the csv file into the combobox. The csv file has account numbers, account type, how much money is in the Checking and Savings Account. In the combobox I just need to load the account numbers. I don't know how to do that so I really can't provide an example of what I have done because I just don't know how to load the account numbers into the combobox. I have never worked with javafx and it is really confusing to me.
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I am using a quite unknown bookmark manager on Android. I picked this one after trying others because it was possible to import, export, classify by folders, the design was good and it was easy to search in my bookmarks.
After importing all my bookmarks from other browsers and also from files, I started classifying all of them into folders, subfolders, etc..
I spent many days to classify them all as I wanted.
After classifying them, I tried to export them.
The problem is that the only option offered is to export them in a .html file, containing all the bookmarks but without any folder.
The .html file contains all my bookmarks but in complete desorder, and doesnt mention the folders.
In the app there was also a "backup" function, so I tried and it creates a .db file.
I opened this .db file with some SQLiteViewer app and I found written inside, among other things I dont understand, a list of all my bookmarks with a number next to each one of them, and also a list of my folders with next to them the corresponding number.
When I open the .db file, I have a choice between
-SQlite master
-android metadata
-bookmarks
-folders
-sqlite sequence
If I click on "Bookmarks", all my bookmarks are in a kind of spreadsheet with lines and columns. Next to them in another columns, for example for each bookmark related with "Kitchen recipes" it's written the number 1.
And in the "Folders" folder, next to the folder called "Recipes" its also written 1.
So I'm happy because it seems that my classification is stored in this file.
But the fact is I dont know how to extract easily all that data, and create with it a "bookmark" file importable in other bookmark app or browser ( for example .csv or .xbel or .html but with folders)
I guess I need some "script" working like this:
if the first raw in "Folders" got the number 8 next to it
Then take all the bookmarks in the "bookmarks" folder that also got an 8 written next to it, and put it inside this folder.
I'm a complete noob in coding, I dont know what is SQlite, nor anything.
So i know that maybe I am asking for too much informations at the same time.
But if some kind person could put me in the way, by explaining me if
thats possible
what would be the easiest way
if some solution already exist
if someone like me can do it and what do I have to learn if I want some day to be able to do it
Thanks
Here's pictures so you understand easier:
Sqlite
Folders
Bookmarks
I would like to access the history of what have been typed in the source panel in RStudio.
I'm interested in the way we learn and type code. Three things I would like to analyse are: i) the way a single person type code, ii) how different persons type code, iii) the way a beginner improve typing.
Grabbing the history of commands is quite satisfying as first attempt in this way but I would like to reach a finer granularity and thus access the successive changes, within a single line in a way.
So, to be clear, I'm neither looking for the history of commands or for a diff between different versions of and .R file.
What I would like to access is really the successive alterations to the source panel that are visible when you recursively press Ctrl+Z. I do not know if there is a more accurate word for what I describe, but again what I'm interested in is how bits of code are added/moved/deleted/corrected/improved in the source panel but not necessary passed to the Console and thus absent from the history of command.
This must be somewhere/somehow saved by RStudio as it is accessible by the later. This may be saved in a quite hidden/private/memory/process/... way and I have a very vague idea of how a GUI works. I do not know it if would be easily accessible, then programmaticaly analyzed, typically if we could save a file from it. Timestamps would be the cherry on top but I would be happy without.
Do you have idea how to access this history?
RStudio's source panel is essentially a view to an Ace Editor. As such you'd need to access the editor session's editSession and use getDocument or getWordRange along with the undo of the editSession's undoManager instance.
I don't think you'll be doing that from within RStudio without hacking on the RStudio code unless the RStudio Addin api is made to pass-thru editor events in the future.
It might be easier to write a session recorder as changes are made rather than try to mess with the undo history. I imagine you could write an Addin that calls a javascript to communicate over the existing RStudio port using the Ace Editor's events (ie. onChange).
As #GegznaV said, RStudio saves code history to a ".RHistory" file. It's in the "Documents" folder on my computer. It's probably the same folder if you're using Windows. If you do not know the location, you can find the file by searching.
It also allows saving RStudio history to a file manually. There is a "Save" button in the History panel. So you can also get a timestamp. You can ask different users to save their code history after they have finished writing code. It may be indirectly useful to your research.
I have an app that saves your data and retrieves your data under a ID number of your choice! The only thing is I have people asking for an excel document of all there saved data! Does anyone know how I would go ahead with this! I am using Swift and Xcode 6.1! I am also using a SQLite file that core data has made for me.
Thanks,
AppSwiftGB
Creating native Excel is likely a PITA. You should export to CSV, though the format seems to be another PITA for one is liking comma, the other semicolon and the third tabs :-(
I need very simple text file logging. I'll only append lines to it. never change existing ones nor delete them. If it would be XML file it would be easier to bind to grids to view them. but question remains for both text files and xml files as they are in file system.
in web server there will be file locking while appending log entries. and maybe also while reading them. So this method has to be thread safe. At the same moment multiple instances can write date to file.
I know there are some third party tools like serilog etc but I want to know:
how can I append (not change) lines to text file (or xml file) without concerning about file locks ?
if I read xml file to dataset, add a new row to it and save it as xml I would use other entries made by other instances.
if I open a text file with streamwriter and append a line to it, other instances would get lock error.
I get the list of logs from admin panel again, file will be locked and instances wouldn't append logs.
any ideas ?
After long reserch hours and experiments I found out that using Nlog is the best option for me. most important thing is people who use it are very happy. I created small example page that writes a log everytime it called and tested it. I have a multithreaded application that calls this sample page again and again. If was fast enough so I could not see the counting numbers of threads. no problem raised so far.
So, I'll stick to Nlog.
best.
I have a Qt desktop application that works on Linux and Windows. At some point I'm hoping to port it to MacOS X and other *nix systems too.
My problem is that, a part of the application has a functionality that allows users to drag and drop files into, and out from an archive. The UI is kinda like that of WinZip or similar GUI based archivers. But Qt's drag and drop system wants the data to be prepared when the user starts dragging files from the archive.
What I currently do is, extract the dragged files to a temporary location, and supply those file names as data. But it's undesirable because extracting deep directory trees take a good amount of time, and it causes the GUI to freeze during that time. It would be nice if I could do that operation when the user decides to drop the files, not when he/she starts to drag. Unfortunately Qt docs don't say anything about this.
I know how to achieve this using Windows API, and I'm pretty sure that most systems have a way to do that too. But I want to avoid writing platform specific code as much as possible.
Is there a Qt way to achieve that? Am I missing something?
I may be misunderstanding, but I think what you want to do is supply enough information in a QMimeData for the QDrag you create that you can find the files in the archive after the user drops it without having to extract them first. So, if your code on the drop end doesn't know which archive the files have come from, you need to supply the path to the archive in your mime data, too.
The drag starts as a message:
"I'm dragging Archive1:FileA, Archive1:FileB" but no file extraction.
It ends on the other end by interpreting the message and then extracting the files. I'd probably set up some kind of simple ICD for both sides of the message transfer. If you can only drag from one archive at a time, maybe a string list with the first element being the archive and following ones being the files:
QStringList list;
list << archivePath;
list << fileName1;
list << fileName2;
QByteArray ba;
QDataStream stream(&ba);
stream << list;
QMimeData* mime = new QMimeData;
mime->setData("yourType", ba);
I hope this helps!