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  • best practices question: How to save a collection of images and a java object in a single file? File

    - by Richard
    Hi all, I am making a java program that has a collection of flash-card like objects. I store the objects in a jtree composed of defaultmutabletreenodes. Each node has a user object attached to it with has a few string/native data type parameters. However, i also want each of these objects to have an image (typical formats, jpg, png etc). I would like to be able to store all of this information, including the images and the tree data to the disk in a single file so the file can be transferred between users and the entire tree, including the images and parameters for each object, can be reconstructed. I had not approached a problem like this before so I was not sure what the best practices were. I found XLMEncoder (http://java.sun.com/j2se/1.4.2/docs/api/java/beans/XMLEncoder.html) to be a very effective way of storing my tree and the native data type information. However I couldn't figure out how to save the image data itself inside of the XML file, and I'm not sure it is possible since the data is binary (so restricted characters would be invalid). My next thought was to associate a hash string instead of an image within each user object, and then gzip together all of the images, with the hash strings as the names and the XMLencoded tree in the same compmressed file. That seemed really contrived though. Does anyone know a good approach for this type of issue? THanks! Thanks!

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  • cordova 2.0.0 download file Android

    - by N0rA
    I tried to use cordova 2.0.0 API FileTransfer().download() and i got 2 consecutive errors 1) download error source file 2) download error target file here is my code... function downloadMaterial() { var fileTransfer = new FileTransfer(); var serverURL = 'http://img.youm7.com/images/NewsPics/large/S2200921125437.jpg'; var uri = encodeURI(serverURL); var filePath = persistent_root.fullPath+"/" + fileName; //filePath = file:///data/data/com.example.studyapp/S2200921125437.jpg var onSuccess = function (entry) { console.log("download complete: " + entry.fullPath); }; var onError = function (error) { console.log("download error source " + error.source); console.log("download error target " + error.target); console.log("upload error code " + error.code); }; fileTransfer.download(uri, filePath , onSuccess, onError); } Do you have any idea what should I do? Thanks in advance ...

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  • Delphi-5 single-file storage solution?

    - by pastacool
    Hi! Is there a Delphi-5 solution to easily integrate single-file storage into existing code? I would like to have files like Java *.jar or Openoffice document files which are zipped/compressed files and folders but with their own file extension. Edit: I know some ZIP capable components but in a nutshell I want to access files within the "container" and use normal file handling routines on them (eg. TStringList.SaveToFile). Any overhead about compress/uncompress should be handled by the component.

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  • File size and mime-type before upload

    - by Marcos Placona
    Hi, I've scavenged on every single topic on this forum to try and find an answer before I posted this. Most people say you should simply use SWFUpload, some others mention Activex, and it keeps going. I know this is do-able, as Google does it with gMail when you try to upload a file that's bigger than 25mb, or executable. My question is, how can I determine the file size and mime-type before the file actually hits my server. I primarily thought it was an impossible task, but Google proves me wrong. Could anyone give me a definitive answer on how to accomplish such task? Thanks

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  • C# "Could not find a part of the path" - Creating Local File

    - by Pyronaut
    I am trying to write to a folder that is located on my C:\ drive. I keep getting the error of : Could not find a part of the path .. etc My filepath looks basically like this : C:\WebRoot\ManagedFiles\folder\thumbs\5c27a312-343e-4bdf-b294-0d599330c42d\Image\lighthouse.jpg And I am writing to it like so : using (MemoryStream memoryStream = new MemoryStream()) { thumbImage.Save(memoryStream, ImageFormat.Jpeg); using (FileStream diskCacheStream = new FileStream(cachePath, FileMode.CreateNew)) { memoryStream.WriteTo(diskCacheStream); } memoryStream.WriteTo(context.Response.OutputStream); } Don't worry too much about the memory stream. It is just outputting it (After I save it). Since I am creating a file, I am a bit perplexed as to why it cannot find the file (Shouldn't it just write to where I tell it to, regardless?). The strange thing is, It has no issue when I'm testing it above using File.Exists. Obviously that is returning false, But it means that atleast my Filepath is semi legit. Any help is much appreciated.

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  • No such file but the file is there!

    - by user288757
    I'm trying to compile a C++ file with some includes. My main file (well I didn't make it hdf5_getters includes a file which includes the file hdf5.h, also not my design but it's a downloaded library. Every time I try to compile it I get the error message that the file hdf5.h does not exist while it clearly does. I started reading on the internet and people say it can happen because it's a 32bit binary running on a 64bit architecture. But I'm running a 32bit Ubuntu so that can't be it... I'm out of ideas, if anyone can help me please :) This is the errormessage with commands: make hdf5_getters g++ -c -Wall -std=c++0x -O2 -c hdf5_getters.cc In file included from H5Cpp.h:20:0, from hdf5_getters.cc:34: H5Include.h:17:18: fatal error: hdf5.h: No such file or directory #include <hdf5.h> ^ compilation terminated. make: *** [hdf5_getters.o] Error 1

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  • PHP, javascript, single quote problems with IE when passing variable from ajax post to javascript fu

    - by Mattis
    Hi! I have been trying to get this to work for a while, and I suspect there's an easy solution that I just can't find. My head feels like jelly and I would really appreciate any help. My main page.php makes a .post() to backend.php and fetches a list of cities which it echoes in the form of: <li onclick="script('$data');">$data</li> The list is fetched and put onto the page via .html(). My problem occurs when $data has a single quote in it. backend.php passes the variable just fine to page.php but when i run html() it throws a javascript error (in IE, not FF obviously); ')' is expected IE parses the single quote and messes up the script()-call. I've been trying to rebuild the echoed string in different ways, escaping the 's on the php side and/or on the javascript side - but in vain. Do I have to review the script in total? page.php $.post("backend.php", {q: ""+str+""}, function(data) { if(data.length >0) { $('#results').html(data); } backend.php while ($row = $q->fetch()) { $city = $row['City']; // $city = addslashes($row['City']); // $city = str_replace("'","&#39;",$row['City']); echo "<li onclick=\"script('$city');\">".$city."</li>"; }

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  • Rails: Single Table Inheritance and models subdirectories

    - by Chris
    I have a card-game application which makes use of Single Table Inheritance. I have a class Card, and a database table cards with column type, and a number of subclasses of Card (including class Foo < Card and class Bar < Card, for the sake of argument). As it happens, Foo is a card from the original printing of the game, which Bar is a card from an expansion. In an attempt to rationalise my models, I have created a directory structure like so: app/ + models/ + card.rb + base_game/ + foo.rb + expansion/ + bar.rb And modified environment.rb to contain: Rails::Initializer.run do |config| config.load_paths += Dir["#{RAILS_ROOT}/app/models/**"] end However, when my reads a card from the database, Rails throws the following exception: ActiveRecord::SubclassNotFound (The single-table inheritance mechanism failed to locate the subclass: 'Foo'. This error is raised because the column 'type' is reserved for storing the class in case of inheritance. Please rename this column if you didn't intend it to be used for storing the inheritance class or overwrite Card.inheritance_column to use another column for that information.) Is it possible to make this work, or am I doomed to a flat directory structure?

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  • How do I repair the corrupted files found by sfc /scannow? "Windows Resource Protection found corrupt files but was unable to fix some of them."

    - by galacticninja
    After running chkdsk C: /F /R and finding out that my hard disk has 24 KB in bad sectors (log is posted below), I decided to run Windows 7's System File Checker utility (sfc /scannow). SFC showed the ff. message after I ran it: "Windows Resource Protection found corrupt files but was unable to fix some of them. Details are included in the CBS.Log windir\Logs\CBS\CBS.log." Since the CBS.log file is too large, I ran findstr /c:"[SR]" %windir%\Logs\CBS\CBS.log >"%userprofile%\Desktop\sfcdetails.txt" (as per Microsoft's KB 928228 article) to only get the log text pertaining to the corrupt files. (log is also posted below) How do I troubleshoot and repair the corrupted files mentioned by sfc /scannow? My OS is Windows 7, 64-bit. chkdsk log Checking file system on C: The type of the file system is NTFS. A disk check has been scheduled. Windows will now check the disk. CHKDSK is verifying files (stage 1 of 5)... 936192 file records processed. File verification completed. 25238 large file records processed. 0 bad file records processed. 4 EA records processed. 44 reparse records processed. CHKDSK is verifying indexes (stage 2 of 5)... 1051640 index entries processed. Index verification completed. 0 unindexed files scanned. 0 unindexed files recovered. CHKDSK is verifying security descriptors (stage 3 of 5)... 936192 file SDs/SIDs processed. Cleaning up 24 unused index entries from index $SII of file 0x9. Cleaning up 24 unused index entries from index $SDH of file 0x9. Cleaning up 24 unused security descriptors. Security descriptor verification completed. 57725 data files processed. CHKDSK is verifying Usn Journal... 36994248 USN bytes processed. Usn Journal verification completed. CHKDSK is verifying file data (stage 4 of 5)... 936176 files processed. File data verification completed. CHKDSK is verifying free space (stage 5 of 5)... 306238 free clusters processed. Free space verification is complete. Adding 1 bad clusters to the Bad Clusters File. Correcting errors in the Volume Bitmap. Windows has made corrections to the file system. 488282111 KB total disk space. 485595420 KB in 766458 files. 401856 KB in 57726 indexes. 24 KB in bad sectors. 1059863 KB in use by the system. 65536 KB occupied by the log file. 1224948 KB available on disk. 4096 bytes in each allocation unit. 122070527 total allocation units on disk. 306237 allocation units available on disk. Internal Info: 00 49 0e 00 81 93 0c 00 34 01 17 00 00 00 00 00 .I......4....... 6b 29 00 00 2c 00 00 00 00 00 00 00 00 00 00 00 k)..,........... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ sfc /scannow log (through findstr /c:"[SR]" %windir%\Logs\CBS\CBS.log >"%userprofile%\Desktop\sfcdetails.txt") Note: The full log is at http://pastebin.com/raw.php?i=gTEGZmWj . I've only quoted parts of the full log below (mostly from the last part), as the full log won't fit within the character limit for questions. I've added it to serve as a preview. ... 2013-12-28 19:37:50, Info CSI00000542 [SR] Beginning Verify and Repair transaction 2013-12-28 19:37:55, Info CSI00000544 [SR] Verify complete 2013-12-28 19:37:56, Info CSI00000545 [SR] Verifying 95 (0x000000000000005f) components 2013-12-28 19:37:56, Info CSI00000546 [SR] Beginning Verify and Repair transaction 2013-12-28 19:38:03, Info CSI00000548 [SR] Verify complete 2013-12-28 19:38:03, Info CSI00000549 [SR] Repairing 43 (0x000000000000002b) components 2013-12-28 19:38:03, Info CSI0000054a [SR] Beginning Verify and Repair transaction ... 2013-12-28 19:38:15, Info CSI00000730 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:62{31}]"GroupPolicy-Admin-Gpedit-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000733 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:30{15}]"frs-core-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000736 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:26{13}]"gpmgmt-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000739 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:74{37}]"MediaServer-ASPAdmin-Migration-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI0000073c [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:36{18}]"Ldap-Client-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI0000073f [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:38{19}]"iSNS_Service-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000742 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:76{38}]"MediaServer-Multicast-Migration-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000745 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:78{39}]"Kerberos-Key-Distribution-Center-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000748 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:86{43}]"GroupPolicy-CSE-SoftwareInstallation-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI0000074b [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:28{14}]"ieframe-dl.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI0000074e [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:76{38}]"GroupPolicy-Admin-Gpedit-Snapin-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000751 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:32{16}]"IPSec-Svc-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000754 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:22{11}]"HTTP-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000757 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:56{28}]"MediaServer-Migration-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI0000075a [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:26{13}]"GPBase-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI0000075d [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:38{19}]"IasMigPlugin-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000760 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:50{25}]"International-Core-DL.man"; source file in store is also corrupted 2013-12-28 19:38:16, Info CSI00000762 [SR] Cannot repair member file [l:24{12}]"wbemdisp.dll" of Microsoft-Windows-WMI-Scripting, Version = 6.1.7600.16385, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch 2013-12-28 19:38:16, Info CSI00000763 [SR] This component was referenced by [l:202{101}]"Microsoft-Windows-Foundation-Package~31bf3856ad364e35~amd64~~6.1.7601.17514.WindowsFoundationDelivery" 2013-12-28 19:38:16, Info CSI00000766 [SR] Could not reproject corrupted file [ml:58{29},l:56{28}]"\??\C:\Windows\SysWOW64\wbem"\[l:24{12}]"wbemdisp.dll"; source file in store is also corrupted 2013-12-28 19:38:16, Info CSI00000768 [SR] Cannot repair member file [l:56{28}]"Microsoft.MediaCenter.UI.dll" of Microsoft.MediaCenter.UI, Version = 6.1.7601.17514, pA = PROCESSOR_ARCHITECTURE_MSIL (8), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch 2013-12-28 19:38:16, Info CSI00000769 [SR] This component was referenced by [l:176{88}]"Microsoft-Windows-MediaCenter-Package~31bf3856ad364e35~amd64~~6.1.7601.17514.MediaCenter" 2013-12-28 19:38:16, Info CSI0000076c [SR] Could not reproject corrupted file [ml:520{260},l:40{20}]"\??\C:\Windows\ehome"\[l:56{28}]"Microsoft.MediaCenter.UI.dll"; source file in store is also corrupted 2013-12-28 19:38:16, Info CSI0000076e [SR] Cannot repair member file [l:24{12}]"ReAgentc.exe" of Microsoft-Windows-WinRE-RecoveryTools, Version = 6.1.7601.17514, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch 2013-12-28 19:38:16, Info CSI0000076f [SR] This component was referenced by [l:202{101}]"Microsoft-Windows-Foundation-Package~31bf3856ad364e35~amd64~~6.1.7601.17514.WindowsFoundationDelivery" 2013-12-28 19:38:16, Info CSI00000772 [SR] Could not reproject corrupted file [ml:48{24},l:46{23}]"\??\C:\Windows\SysWOW64"\[l:24{12}]"ReAgentc.exe"; source file in store is also corrupted 2013-12-28 19:38:16, Info CSI00000774 [SR] Cannot repair member file [l:82{41}]"System.Management.Automation.dll-Help.xml" of Microsoft-Windows-PowerShell-PreLoc.Resources, Version = 6.1.7600.16385, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture = [l:10{5}]"en-US", VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch 2013-12-28 19:38:16, Info CSI00000775 [SR] This component was referenced by [l:266{133}]"Microsoft-Windows-Client-Features-Package~31bf3856ad364e35~amd64~en-US~6.1.7601.17514.Microsoft-Windows-Client-Features-Language-Pack" 2013-12-28 19:38:16, Info CSI00000778 [SR] Could not reproject corrupted file [ml:520{260},l:104{52}]"\??\C:\Windows\System32\WindowsPowerShell\v1.0\en-US"\[l:82{41}]"System.Management.Automation.dll-Help.xml"; source file in store is also corrupted 2013-12-28 19:38:16, Info CSI0000077a [SR] Cannot repair member file [l:18{9}]"hlink.dll" of Microsoft-Windows-HLink, Version = 6.1.7600.16385, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch 2013-12-28 19:38:16, Info CSI0000077b [SR] This component was referenced by [l:202{101}]"Microsoft-Windows-Foundation-Package~31bf3856ad364e35~amd64~~6.1.7601.17514.WindowsFoundationDelivery" 2013-12-28 19:38:16, Info CSI0000077e [SR] Could not reproject corrupted file [ml:48{24},l:46{23}]"\??\C:\Windows\SysWOW64"\[l:18{9}]"hlink.dll"; source file in store is also corrupted 2013-12-28 19:38:16, Info CSI00000780 [SR] Repair complete 2013-12-28 19:38:16, Info CSI00000781 [SR] Committing transaction 2013-12-28 19:38:19, Info CSI00000785 [SR] Verify and Repair Transaction completed. All files and registry keys listed in this transaction have been successfully repaired

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  • Active Record two belongs_to calls or single table inheritance

    - by ethyreal
    In linking a sports event to two teams, at first this seemed to make sense: events - id:integer - integer:home_team_id - integer:away_team_id teams - integer:id - string:name However I am troubled by how I would link that up in the active record model: class Event belongs_to :home_team, :class_name => 'Team', :foreign_key => "home_team_id" belongs_to :away_team, :class_name => 'Team', :foreign_key => "away_team_id" end Is that the best solution? In an answer to a similar question I was pointed to single table inheritance, and then later found polymorphic associations. Neither of which seemed to fit this association. Perhaps I am looking at this wrong, but I see no need to subclass a team into home and away teams since the distinction is only in where the game is played. If I did go with single table inheritance I wouldn't want each team to belong_to an event so would this work? # app/models/event.rb class Event < ActiveRecord::Base belongs_to :home_team belongs_to :away_team end # app/models/team.rb class Team < ActiveRecord::Base has_many :teams end # app/models/home_team.rb class HomeTeam < Team end # app/models/away_team.rb class AwayTeam < Team end I thought also about a has_many through association but that seems two much as I will only ever need two teams, but those two teams don't belong to any one event. event_teams - integer:event_id - integer:team_id - boolean:is_home Is there a cleaner more semantic way for making these associations in active record? or is one of these solutions the best choice? Thanks

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  • Display custom file format's metadata in Windows Explorer

    - by Benny Jobigan
    When viewing a jpg or mp3 in Windows Explorer, the bottom pane shows metadata from the media file. Furthermore, for video and picture, the icon is shown as a preview of the media. Is there a way to add this kind of functionality to windows for custom file types that aren't supported by default in windows? Is there a certain sort of plugin or extension that must be written? If so, how is it implemented? Thank you.

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  • Max file size for File.ReadAllLines

    - by user283897
    Hi, I need to read and process a text file. My processing would be easier if I could use the File.ReadAllLines method but I'm not sure what is the maximum size of the file that could be read with this method without reading by chunks. I understand that the file size depends on the computer memory. But are still there any recommendations for an average machine? I would greatly appreciate your fast response. Thanks, Lev

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  • Read file from root directory folder using filestream

    - by SurajSing
    There are two Image files in my folder which I have to call in my program. I have used: AppDomain.curentDomain.baseDirectory + "Path and file name"; But this goes into my bin directory which I don't want; I want to read the folder from root directory where my folder name as resource I have saved my file there and call the image so please what's the code for that? How do I read from root directory in a Windows Form Application?

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  • recursively add file extension to all files

    - by seengee
    I have a few directories and sub-directories containing files with no file extension. I want to add .jpg to all the files contained within these directories. I have seen bash scripts for changing the file extension but not for just adding one. It also needs to be recursive, can someone help please?

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  • Watin: file upload ...without file selection window?

    - by user526186
    with "file upload" HTML like this: <input name="input_name" type="file" size="40" /> ...there is no way for users to directly enter text into input area for security reasons, correct? file selection window pops up instead. In Watin automation project, we are wanting to bypass the file selection window and place filename directly in text entry area - but we are not finding a way to do this. How can this be accomplished? ...or perhaps it cannot be done?

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  • Read a specific range of lines from a file using c

    - by James Joy
    I have the following content in a file: hhasfghgsafjgfhgfhjf gashghfdgdfhgfhjasgfgfhsgfjdg jfshafghgfgfhfsghfgffsjgfj . . . . . startread hajshjsfhajfhjkashfjf hasjgfhgHGASFHGSHF hsafghfsaghgf . . . . . stopread . . . . . . jsfjhfhjgfsjhfgjhsajhdsa jhasjhsdabjhsagshaasgjasdhjk jkdsdsahghjdashjsfahjfsd I need to read the lines from the next line of startread till the previous line of stopread using a c code and store it to a string variable(of course with a \n for every line breaks). How can i achieve this? I have used fgets(line,sizeof(line),file); but it starts reading from the beginning. I don't have the exact line number to start and stop reading since the file is written by another C code. But there are these identifiers startread and stopread to identify whereto start reading. Operating platform is linux. Thanks in advance.

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  • Building Single Page Apps on the Microsoft Stack

    - by Stephen.Walther
    Thank you everyone who came to my talk last night on Building Single Page Apps on the Microsoft Stack. I’ve attached the slides and code samples below. Here’s a quick summary of the talk. I argued that Single Page Apps are better than traditional Server Side Apps because: Single Page Apps are Stateful – In a traditional server-side app, whenever you navigate to a new page, all of your previous state is lost. It is like rebooting your computer whenever you perform any action In a Single Page App, Your Presentation Layer is Not Miles Away – In a traditional server-side app, because everything happens on the server, your presentation layer is separated from the user by space and time. In a Single Page App, the presentation layer is in the browser and not the server (which is the right place for a presentation layer). A Single Page App Respects the Web – It is easier to take advantage of HTML5 and related standards when building a Single Page App. Next, I recommended using the following four technologies when building a web application: Knockout – This is how you create your presentation layer. ASP.NET Web API – This is how you expose JSON data from your web server and perform server-side validation. HTML5 – This is how you implement client-side validation. Sammy – This is how you implement client-side routing and create a Single Page App with multiple virtual pages. There are code samples in the download (look in the Samples folder) which demonstrate how all of these technologies work when building Single Page Apps. Powerpoint Sample Code

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  • Animation file format

    - by Paul
    I'm trying to make a simple 2D animation file format. It'll be very rudimentary: only an XML file containing some parameters (such as frame duration) and metadata, and some images, each representing a frame. I'd like to have the whole animation (frames and XML document) packed in a single file. How do you suggest I do that? What libraries are there that would allow easy access to the files inside the animation file itself? The language I'm using is C++ and the platform is Windows, but I'd rather not use a platform dependent library, if possible.

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  • Importing tab delimited file into array in Visual Basic 2013 [migrated]

    - by JaceG
    I am needing to import a tab delimited text file that has 11 columns and an unknown number of rows (always minimum 3 rows). I would like to import this text file as an array and be able to call data from it as needed, throughout my project. And then, to make things more difficult, I need to replace items in the array, and even add more rows to it as the project goes on (all at runtime). Hopefully someone can suggest code corrections or useful methods. I'm hoping to use something like the array style sMyStrings(3,2), which I believe would be the easiest way to control my data. Any help is gladly appreciated, and worthy of a slab of beer. Here's the coding I have so far: Imports System.IO Imports Microsoft.VisualBasic.FileIO Public Class Main Dim strReadLine As String Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim sReader As IO.StreamReader = Nothing Dim sRawString As String = Nothing Dim sMyStrings() As String = Nothing Dim intCount As Integer = -1 Dim intFullLoop As Integer = 0 If IO.File.Exists("C:\MyProject\Hardware.txt") Then ' Make sure the file exists sReader = New IO.StreamReader("C:\MyProject\Hardware.txt") Else MsgBox("File doesn't exist.", MsgBoxStyle.Critical, "Error") End End If Do While sReader.Peek >= 0 ' Make sure you can read beyond the current position sRawString = sReader.ReadLine() ' Read the current line sMyStrings = sRawString.Split(New Char() {Chr(9)}) ' Separate values and store in a string array For Each s As String In sMyStrings ' Loop through the string array intCount = intCount + 1 ' Increment If TextBox1.Text <> "" Then TextBox1.Text = TextBox1.Text & vbCrLf ' Add line feed TextBox1.Text = TextBox1.Text & s ' Add line to debug textbox If intFullLoop > 14 And intCount > -1 And CBool((intCount - 0) / 11 Mod 0) Then cmbSelectHinge.Items.Add(sMyStrings(intCount)) End If Next intCount = -1 intFullLoop = intFullLoop + 1 Loop End Sub

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  • Debugger for file I/O development?

    - by datenwolf
    Okay, the question title may be a bit cryptic. But it aptly describes what I'm looking for: I think every experienced coder went through this numerous times: You get a binary file format specification, you implement the reader for it, and… nothing works like expected. So you run your code in the debugger, go execute through the code line by line, every header field is read in seemingly correct, but when it comes to the bulk data, offset and indices no longer match up. What would really help in this situation was a binary file viewer, that shows you the progress of your file pointer, as you step through the code, and ideally would also highlight all memory maps. Then you could see the context of the current I/O operations, most notably those darn "off-by-one" mistakes, which are even more annoying when reading a file. Implementing such a debugger should not be too hard. traces on the process' file descriptors/handles and triggers on the I/O functions, to update the display. Only: I don't know of such a kind of debugger to exist. Do I just lack knowledge about the existance of such a tool, or is there really no such thing?

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  • Large uploaded file won't display in Ubuntu One but is included in file usage

    - by user1488963
    On Ubuntu 10.04, I uploaded a single 711 MB. My total file usage in Ubuntu One went up to 877MB, which is about right, but the file doesn't show in Ubuntu One so I can't download or delete it. Either the file is there and I can't see it for some reason. Or the file is not there and the total file usage figure is wrong. Does anyone know what has happened? I have a free account but am well below my 5GB limit.

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  • Single Sign on- From our customer's Active Directory

    - by jbarker7
    We have an ASP.NET MVC website that a customer is requesting Active Directory single sign on. My thought is that we will need something behind their firewall in order to send encrypted credentials or a user's ID over to our server... any best practices or products that do this would be extremely helpful! Thanks! jbarker7

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