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  • PropertyGrid PaintValue problem: How to remove (and paint outside) the standard rectangle?

    - by Pedery
    This might be a straightforward question, even though I haven't found an easy solution to it: I've implemented my custom UITypeEditor with the sole purpose of adding a PaintValue to bools. For the sake of the discussion, let's assume that PaintValue will either paint a checked or unchecked radiobutton. Question 1: Now, here's the problem: It seems like PaintValue automatically inserts a 20x13px rectangle after all paint code has completed. Naturally, a radiobutton inside a black rectangle is ugly. Can I easily instruct or override this rectagle not to be painted? Question 2: In this respect, is it possible to paint on top of the propertygrid's native look - meaning could I paint something in order to obscure (part of) the black line separating two grid cells vertically? The purpose of doing this would be to indicate that two values were linked, like constrained width/height to an aspect ratio.

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  • DataContractSerializer KnownType attribute not being respected?

    - by e28Makaveli
    I have a class that is decorated with a KnownType attribute with a type of the class. Is this not allowed? [KnownType(typeof(Occ600UIConfig))] public class Occ600UIConfig { } If so, why is the DCS throwing the following exception? {"Error in line 1 position 387. Element 'http://schemas.microsoft.com/2003/10/Serialization/Arrays:Value' contains data of the 'http://schemas.datacontract.org/2004/07/OCC600.Infrastructure.Dictionary.BusinessEntities:Occ600UIConfig' data contract. The deserializer has no knowledge of any type that maps to this contract. Add the type corresponding to 'Occ600UIConfig' to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding it to the list of known types passed to DataContractSerializer."}

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  • DateTimePicker not updating dataset

    - by Dan
    I'm binding a DateTimePicker control to my dataset (which is linked to a database). However, unless the user changes the date on that control, the dataset seems to contain null for that entry (even though the Value entry of the control isn't null). I've done a bit of googling, and there's a lot of talk about people having troubles with the DateTimePicker not supporting null values. However, I DON'T want it to support a NULL value. The column in my database table is set to "NOT NULL". It's as if the dataset isn't updating itself from the DateTimePicker control unless the user changes the date. I've tried explicitly setting the date for the control in code (using DateTimePicker.Value = DateTime.Now). This still doesn't update the dataset side. Thankyou for any help, Dan.

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  • Code golf: find all anagrams

    - by Charles Ma
    An word is an anagram if the letters in that word can be re-arranged to form a different word. Task: Find all sets of anagrams given a word list Input: a list of words from stdin with each word separated by a new line e.g. A A's AOL AOL's Aachen Aachen's Aaliyah Aaliyah's Aaron Aaron's Abbas Abbasid Abbasid's Output: All sets of anagrams, with each set separated by a separate line Example run: ./anagram < words marcos caroms macros lump's plum's dewar's wader's postman tampons dent tend macho mocha stoker's stroke's hops posh shop chasity scythia ... I have a 149 char perl solution which I'll post as soon as a few more people post :) Have fun!

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  • Sending emails to site subscribers

    - by Art
    I have a site where people enter their email address to be reminded of a weekly posting. I only send them the weekly email that they double-opt-in for. I do not sell, trade, expose, or do anything else with their address. Right now I have a bit of a hack, connecting to a large email providers SMTP server to send the emails. As the site grows I fear that my emails will be marked as spam and that I will be violating the TOS of the provider. I'm considering two options, building an in-house SMTP server or using a mailing list service. Is there a best-known-method for this? I'd really prefer to simply build my email and use a script to send them through the SMTP server rather then use some GUI to build the email and import a list of addresses. But previous experience tells me that running a mail server and not being marked as spam can be difficult. Help!?

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  • Android TitleBar / NavBar ?

    - by Chris
    I am not sure what the proper term is, but I am trying to add a "TitleBar" to the top of one of the windows in my App. Much like the Contacts App, I have several Tabs along the top of the screen. When you select an item from the list, it loads the next Activity, but that Activity no longer has the Tabs at the top of the screen. I don't know if it is called a TitleBar or what. The Contacts App has this TitleBar along the top of the screen when you select a person from the list of Contacts. I am trying to mimick the Grey Bar that says "George Washington"

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  • How does C# lambda work?

    - by Alex
    I'm trying to implement method Find that searches the database. I want it to be like that: var user = User.Find(a => a.LastName == "Brown"); Like it's done in List class. But when I go to List's source code (thanks, Reflector), I see this: public T Find(Predicate<T> match) { if (match == null) { ThrowHelper.ThrowArgumentNullException(ExceptionArgument.match); } for (int i = 0; i < this._size; i++) { if (match(this._items[i])) { return this._items[i]; } } return default(T); } How can I implement this thing? I need to get those parameters to make the search.

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  • JasperReport Issue using with struts2 - getting null in final PDF file

    - by Nirmal
    Hello, i am writing my jasper report problem with struts2. Following is the code that i am trying to execute : struts.xml contains : <action name="myJasperTest1" class="temp.JasperAction1"> <result name="success" type="jasper"> <param name="location">/jasper/our_compiled_template.jasper</param> <param name="dataSource">myList</param> <param name="format">PDF</param> </result> </action> My JasperAction1 contains : import java.util.ArrayList; import java.util.List; import com.sufalam.business.model.util.LegacyJasperInputStream; import net.sf.jasperreports.engine.JasperCompileManager; import com.opensymphony.xwork2.ActionSupport; import com.sufalam.business.finance.model.bean.Account; import java.io.FileInputStream; import net.sf.jasperreports.engine.design.JasperDesign; import net.sf.jasperreports.engine.xml.JRXmlLoader; public class JasperAction1 extends ActionSupport { /** List to use as our JasperReports dataSource. */ private List<Account> myList; public String execute() throws Exception { // Create some imaginary persons. Account a1 = new Account(); Account a2 = new Account(); a1.setId(77); a1.setName("aaa"); a2.setId(88); a2.setName("bbb"); // Store people in our dataSource list (normally would come from database). myList = new ArrayList<Account>(); myList.add(a1); myList.add(a2); // Normally we would provide a pre-compiled .jrxml file // or check to make sure we don't compile on every request. try { JasperDesign design = JRXmlLoader.load( new LegacyJasperInputStream(new FileInputStream("F://backup//backup 26-5(final acegi)//SufalamERP//build//web//jasper//report2.jrxml"))); JasperCompileManager.compileReportToFile(design,"F://backup//backup 26-5(final acegi)//SufalamERP//build//web//jasper//our_compiled_template1.jasper"); } catch (Exception e) { e.printStackTrace(); return ERROR; } return SUCCESS; } public List<Account> getMyList() { return myList; } } I am using ireport plugin of Netbeans for generation .jrxml file. After Designing my page using IReport wizard my our_jasper_template.jrxml file contains following code : <?xml version="1.0" encoding="UTF-8"?> <jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="null" pageWidth="595" pageHeight="842" columnWidth="535" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20"> <queryString language="SQL"> <![CDATA[SELECT account_master."name" AS account_master_name, account_master."id" AS account_master_id FROM "public"."account_master" account_master]]> </queryString> <field name="account_master_name" class="java.lang.String"> <fieldDescription><![CDATA[]]></fieldDescription> </field> <field name="account_master_id" class="java.lang.Integer"> <fieldDescription><![CDATA[]]></fieldDescription> </field> <background> <band/> </background> <title> <band height="58"> <line> <reportElement x="0" y="8" width="555" height="1"/> </line> <line> <reportElement positionType="FixRelativeToBottom" x="0" y="51" width="555" height="1"/> </line> <staticText> <reportElement x="65" y="13" width="424" height="35"/> <textElement textAlignment="Center"> <font size="26" isBold="true"/> </textElement> <text><![CDATA[Classic template]]></text> </staticText> </band> </title> <pageHeader> <band/> </pageHeader> <columnHeader> <band/> </columnHeader> <detail> <band height="40"> <staticText> <reportElement x="0" y="0" width="139" height="20"/> <textElement> <font size="12"/> </textElement> <text><![CDATA[account_master_name]]></text> </staticText> <textField> <reportElement x="139" y="0" width="416" height="20"/> <textElement> <font size="12"/> </textElement> <textFieldExpression class="java.lang.String"><![CDATA[$F{account_master_name}]]></textFieldExpression> </textField> <staticText> <reportElement x="0" y="20" width="139" height="20"/> <textElement> <font size="12"/> </textElement> <text><![CDATA[account_master_id]]></text> </staticText> <textField> <reportElement x="139" y="20" width="416" height="20"/> <textElement> <font size="12"/> </textElement> <textFieldExpression class="java.lang.Integer"><![CDATA[$F{account_master_id}]]></textFieldExpression> </textField> </band> </detail> <columnFooter> <band/> </columnFooter> <pageFooter> <band height="26"> <textField evaluationTime="Report" pattern="" isBlankWhenNull="false"> <reportElement key="textField" x="516" y="6" width="36" height="19" forecolor="#000000" backcolor="#FFFFFF"/> <box> <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <bottomPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> </box> <textElement> <font size="10"/> </textElement> <textFieldExpression class="java.lang.String"><![CDATA["" + $V{PAGE_NUMBER}]]></textFieldExpression> </textField> <textField pattern="" isBlankWhenNull="false"> <reportElement key="textField" x="342" y="6" width="170" height="19" forecolor="#000000" backcolor="#FFFFFF"/> <box> <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <bottomPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> </box> <textElement textAlignment="Right"> <font size="10"/> </textElement> <textFieldExpression class="java.lang.String"><![CDATA["Page " + $V{PAGE_NUMBER} + " of "]]></textFieldExpression> </textField> <textField pattern="" isBlankWhenNull="false"> <reportElement key="textField" x="1" y="6" width="209" height="19" forecolor="#000000" backcolor="#FFFFFF"/> <box> <topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <bottomPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> <rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/> </box> <textElement> <font size="10"/> </textElement> <textFieldExpression class="java.util.Date"><![CDATA[new Date()]]></textFieldExpression> </textField> </band> </pageFooter> <summary> <band/> </summary> </jasperReport> Now the problem i am facing is when i execute this action class it gives me following output as pdf format :

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  • Using Monitor Class

    - by Mubashar Ahmad
    Dear All I would like to ask couple of Questions regarding the use of Monitor Class in .Net. To understand the Questions please look at the following Code. public class MyClass { private List<int> _MyCollection = new List<int>(); public void GetLock() { Monitor.Enter(_MyCollection); } public void ReleaseLock() { Monitor.Exit(_MyCollection); } public void UpdateCollection(/*anyparam*/) { //update collection without lock on collection } } public class MyAppMain { private static MyClass myclass = new MyClass(); public static void main(args) { try { myclass.GetLock(); //an operation that does not do any update on myclass but wanted //to ensure that the collection within myclass never update //while its doing following opetion //Do somthing } finally { myclass.ReleaseLock(); } } } Now is this the right use of monitor and do i need to use Pulse or PulseAll to signal waiting thread and if so than should use plus before or after Exit function? Regards Mubashar

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  • tortoisehg and subrepos

    - by adrianm
    I can't get Tortoisehg (1.0) to work with subrepos I have a directory structure like this: root .hg .hgsub .hgsubstate Customer1 Project1 .hg foo.txt Project2 .hg Customer2 Project3 .hg the .hgsub file under root looks like Customer1\Project1=Customer1\Project1 Customer1\Project2=Customer1\Project2 Customer2\Project3=Customer2\Project3 If modify the file Customer1\Project1\foo.txt and commit from the root it works >hg ci -m "command line commit" committing subrepository customer1\project1 in Tortoisehg customer1\project1 is displayed with status S (subrepo) but when commiting I get a message abort: customer1/project1: no match under directory! Is this scenario not supported or am I doing something wrong? The doc says: "TortoiseHg 1.0 introduced rudimentary support for subrepositories, and only in the commit / status tool. When Mercurial considers a subrepo as dirty, it will appear in the commit tool as a special entry in the file list with a status of S. If a subrepo is included in the file list of a commit, the subrepo is committed along with the other changes, updating the .hgsubstate file in the main repository root."

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  • C#: Is this the correct way to use the SqlDataReader for DAAB

    - by Luke101
    Hello, I have just started using the Data Access Application Block from microsoft. There are very few instructions on the correct way to use the library. Just wanted to know if this is the correct way to use the data reader. SqlDataReader reader = SqlHelper.ExecuteReader(config.ConnectionString, CommandType.Text, "select * from category"); List<string> a = new List<string>(); using (reader) { while (reader.Read()) { string t = reader.GetString(1); a.Add(t); } return a; } will everything get closed doing it this way? Is there any chance of memory leaks?

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  • Linking LAPACK/BLAS libraries

    - by Daniel Bremberg
    Background: I am working on a project written in a mix of C and Fortran 77 and now need to link the LAPACK/BLAS libraries to the project (all in a Linux environment). The LAPACK in question is version 3.2.1 (including BLAS) from netlib.org. The libraries were compiled using the top level Makefile (make lapacklib and make blaslib). Problem: During linking, error messages claimed that certain (not all) BLAS-routines called from LAPACK-routines were undefined. This gave me some headache but the problem was eventually solved when (in the Makefile) the order of appearance of the libraries to be linked was changed. Code: In the following, (a) gives errors while (b) does not. The linking is performed by (c). (a) LIBS = $(LAPACK)/blas_LINUX.a $(LAPACK)/lapack_LINUX.a (b) LIBS = $(LAPACK)/lapack_LINUX.a $(LAPACK)/blas_LINUX.a (c) gcc -Wall -O -o $@ project.o project.a $(LIBS) Question: What could be the reason for the undefined references of only some routines and what makes the order of appearance relevant?

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  • IE6 + IE7 CSS problem with overflow hidden

    - by googletorp
    So I have created a slider for a homepage, that slides some images with a title and teaser text using jQuery. Everything works fine, and I went to check IE and found that IE 6 and 7 kills my slider css completely. I can't figure out why, but for some reason I can't hide the non active slides with overflow: hidden; I've tried tweaking the css back and forth, but haven't been able to figure out what's causing the problem. I've recreated the problem in a more isolated html page. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="da" lang="da" dir="ltr"> <head> <style> body { width: 900px; } .column-1 { width: 500px; float: left; } .column-2 { width: 200px; float: left; } .column-3 { width: 200px; float: left; } h4 { font-size: 16px; margin: 0 0 5px; } p { margin: 5px 0; } ul { margin: 0; padding: 0; width: 2000px; left: -499px; overflow: hidden; position: relative; } li { list-style: none; display: block; float: left; } .item-list { overflow: hidden; width: 499px; } img { display: block; } .infobox { background: black; padding: 10px 13px; margin-top: -74px; height: 54px; width: 473px; color: white; position: absolute; } .first { display: block; } </style> </head> <body> <div class="column-1"> <div class="item-list clearfix"> <ul> <li class="first"> <div class="node-slide"> <img src="http://www.hanselman.com/blog/content/binary/lolcats-funny-pictures-leroy-jenkins.jpg" /> <div class="infobox"> <h4>Title 1</h4> <p>Teaser 1</p> </div> </div> </li> <li> <div class="slide"> <img src="http://www.hanselman.com/blog/content/binary/lolcats-funny-pictures-leroy-jenkins.jpg" /> <div class="infobox"> <h4>Title 2</h4> <p>Teaser 2</p> </div> </div> </li> <li class="last"> <div class="slide"> <img src="http://www.hanselman.com/blog/content/binary/lolcats-funny-pictures-leroy-jenkins.jpg" /> <div class="infobox"> <h4>Title 3</h4> <p>Teaser 3</p> </div> </div> </li> </ul> </div> </div> <div class="column-2"> ... </div> <div class="column-3"> ... </div> </body> </html> Any ideas as to why IE wont hide images outside div with class item-list?

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  • LWJGL not working

    - by Jesse Welch
    I'm working on a homework assignment to modify code given by my professor using LightWeight Java Game Library. The problem is that I can't fully load the test code to begin testing modifications. I've linked against the jar file as it says to in the modifications, but I still have one lingering error. The import statement import org.lwjgl.util.glu.*; Cannot be resolved, so I have errors on the following lines, spread throughout the code: textures[0] = GLApp.makeTexture("green.bmp"); GLU.gluPerspective(45.0f, (float)Display.getDisplayMode().getWidth() / (float)Display.getDisplayMode().getHeight(), 0.1f, 100.0f); GLU.gluLookAt(cameraX, cameraY, cameraZ, lookX, lookY, lookZ, 0.0f, 1.0f, 0.0f);` Any ideas on what is going wrong?

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  • Interval tree algorithm that supports merging of intervals with no overlap

    - by Dave Griffiths
    I'm looking for an interval tree algorithm similar to the red-black interval tree in CLR but that supports merging of intervals by default so that there are never any overlapping intervals. In other words if you had a tree containing two intervals [2,3] and [5,6] and you added the interval [4,4], the result would be a tree containing just one interval [2,6]. Thanks Update: the use case I'm considering is calculating transitive closure. Interval sets are used to store the successor sets because they have been found to be quite compact. But if you represent interval sets just as a linked list I have found that in some situations they can become quite large and hence so does the time required to find the insertion point. Hence my interest in interval trees. Also there may be quite a lot of merging one tree with another (i.e. a set OR operation) - if both trees are large then it may be better to create a new tree using inorder walks of both trees rather than repeated insertions of each interval.

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  • How much overhead does a msg_send call incur?

    - by pxl
    I'm attempting to piece together and run a list of tasks put together by a user. These task lists can be hundreds or thousand of items long. From what I know, the easiest and most obvious way would be to build an array and then iterate through them: NSArray *arrayOfTasks = .... init and fill with thousands of tasks for (id *eachTask in arrayOfTasks) { if ( eachTask && [eachTask respondsToSelector:@selector(execute)] ) [eachTask execute]; } For a desktop, this may be no problem, but for an iphone or ipad, this may be a problem. Is this a good way to go about it, or is there a faster way to accomplish the same thing? The reason why I'm asking about how much overhead a msg_send occurs is that I could also do a straight C implementation as well. For example, I could put together a linked list and use a block to handle the next task. Will I gain anything from that or is it really more trouble than its worth?

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  • Debugging ASP.NET Strings Downloaded to Browser (Montréal instead of Montréal)

    - by jdk
    I'm downloading a vCard to the browser using Response.Write to output .NET strings with special accented characters. Mime type is text/x-vcard and French characters are appearing wrong in Outlook, for example Montréal;Québec .NET string shows as Montréal Québec in browser. I'm using this vCard generator code from CodeProject.com I've played with the System.Encoding sample code at the bottom of this linked MSDN page to convert the unicode string into bytes and then write the ascii bytes but then I get Montr?al Qu?bec (progress but not a win). Also I've tried setting content type to both us-ascii and utf-8 of the response. If I open the downloaded vCard in Windows Notepad and save it as ANSI text (instead of default unicode format) and open in Outlook it's okay. So my assumption is I need to cause download of ANSI charset but am unsure if I'm doing it wrong or have a misunderstanding of where to start. Update: Looking at the raw HTTP, it appears my French characters are being downloaded in the unexpected format so it looks like I need to do some work on the server side... (full size)

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  • C# Social Networking SDK

    - by Nix
    I am currently gathering some technology requirements for a site that will be a social network based. I don't want to re-invent the wheel so i am looking for some type of SDK or collection of tools that can provide me with a way of creating/managing a social network. I understand that no framework will probably fit my exact needs so I am also looking for a flexible/extendable framework. An example extension point would be allowing the user to provide sub networks, maybe a global network that could be sub classified as work and friends. Beyond that it would also be nice to somehow be able to import contacts from other networking sites (Facebook, Linked In, etc). My current technology suite will consist of the following: IIS 7.0 WCF Data Services SQL Server 2006 ASP.NET front end. If there is any more information you may need please let me know.

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  • How can I fix my corrupted RAID1 ext4 partition on a Synology DS212 NAS?

    - by Neil
    I have two identical 3 TB disks that were in a RAID1 array, where one disk crashed. I replaced the failed disk, but not after the RAID partitions got messed up. I need to figure out how to restore the RAID array and get at my ext4 partition. Here are the properties of the surviving disk: # fdisk -l /dev/sda fdisk: device has more than 2^32 sectors, can't use all of them Disk /dev/sda: 2199.0 GB, 2199023255040 bytes 255 heads, 63 sectors/track, 267349 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 1 267350 2147483647+ ee EFI GPT # parted /dev/sda print Model: ATA ST3000DM001-9YN1 (scsi) Disk /dev/sda: 3001GB Sector size (logical/physical): 512B/512B Partition Table: gpt Disk Flags: Number Start End Size File system Name Flags 1 131kB 2550MB 2550MB ext4 raid 2 2550MB 4698MB 2147MB linux-swap(v1) raid 5 4840MB 3001GB 2996GB raid I replaced the failed drive, and cloned the surviving drive to it so I have something to work with. I cloned the drives with dd if=/dev/sdb of=/dev/sda conv=noerror bs=64M, and now /dev/sda and /dev/sdb are identical. Here is the RAID information: # cat /proc/mdstat Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] md1 : active raid1 sdb2[1] 2097088 blocks [2/1] [_U] md0 : active raid1 sdb1[1] 2490176 blocks [2/1] [_U] unused devices: <none> It seems that md2 is missing. Here is what testdisk 6.14-WIP finds: Disk /dev/sda - 3000 GB / 2794 GiB - CHS 364801 255 63 Current partition structure: Partition Start End Size in sectors 1 P Linux Raid 256 4980735 4980480 [md0] 2 P Linux Raid 4980736 9175039 4194304 [md1] Invalid RAID superblock 5 P Linux Raid 9453280 5860519007 5851065728 5 P Linux Raid 9453280 5860519007 5851065728 # After a quick search Disk /dev/sda - 3000 GB / 2794 GiB - CHS 364801 255 63 Partition Start End Size in sectors D MS Data 256 4980607 4980352 [1.41.12-2197] D Linux Raid 256 4980735 4980480 [md0] D Linux Swap 4980736 9174895 4194160 D Linux Raid 4980736 9175039 4194304 [md1] >P MS Data 9481056 5858437983 5848956928 [1.41.12-2228] And listing the files on the last partition in the list shows all of my files intact. What should I do?

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  • Generic method to create deep copy of all elements in a collection

    - by bwarner
    I have various ObservableCollections of different object types. I'd like to write a single method that will take a collection of any of these object types and return a new collection where each element is a deep copy of elements in the given collection. Here is an example for a specifc class private static ObservableCollection<PropertyValueRow> DeepCopy(ObservableCollection<PropertyValueRow> list) { ObservableCollection<PropertyValueRow> newList = new ObservableCollection<PropertyValueRow>(); foreach (PropertyValueRow rec in list) { newList.Add((PropertyValueRow)rec.Clone()); } return newList; } How can I make this method generic for any class which implements ICloneable?

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  • JPQL check many-to-many relationship

    - by Juriy
    Just a quick question: There's the entity (for example User) who is connected with the ManyToMany relationship to the same entity (for example this relation describes "friendship" and it is symmetric). What is the fastest way in terms of execution time to check if User A is a "friend" of user B? The "dumb" way would be to fetch whole List and then check if user exists there but that's obviously the overhead. I'm using JPA 2 Here's the sample code: @Entity @Table(name="users") public class UserEntity { @ManyToMany(fetch = FetchType.LAZY) private List<UserEntity> friends; .... }

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  • C++ reading and writing and writing files

    - by user320950
    Write a program that processes a list of items purchased with a receipt List in itemlist.txt just items different numbers Prices in pricelist.txt have items and prices in them, different # Make file output file that has receipt Print message saying program ran- have not done If item not in pricelist, report error, count errors display at end Don't know how many items or prices Close file and clear because of running many these files many times This program wont write to the files like so the above is what i have to do #include<iostream>`enter code here` #include<fstream> #include<cstdlib> #include<iomanip> using namespace std; int main() { ifstream in_stream; // reads itemlist.txt ofstream out_stream1; // writes in items.txt ifstream in_stream2; // reads pricelist.txt ofstream out_stream3;// writes in plist.txt ifstream in_stream4;// read recipt.txt ofstream out_stream5;// write display.txt double price=' ',curr_total=0.0; int wrong=0; int itemnum=' '; char next; in_stream.open("ITEMLIST.txt", ios::in); // list of avaliable items out_stream1.open("listWititems.txt", ios::out); // list of avaliable items in_stream2.open("PRICELIST.txt", ios::in); out_stream3.open("listWitdollars.txt", ios::out); in_stream4.open("display.txt", ios::in); out_stream5.open("showitems.txt", ios::out); in_stream.setf(ios::fixed); while(!in_stream.eof()) { in_stream >> itemnum; cin.clear(); cin >> next; } out_stream1.setf(ios::fixed); while (!out_stream1.eof()) { out_stream1 << itemnum; cin.clear(); cin >> next; } in_stream2.setf(ios::fixed); in_stream2.setf(ios::showpoint); in_stream2.precision(2); while (!in_stream2.eof()) // reads file to end of file { while((price== (price*1.00)) && (itemnum == (itemnum*1))) { in_stream2 >> itemnum >> price; itemnum++; price++; curr_total= price++; in_stream2 >> curr_total; cin.clear(); // allows more reading cin >> next; return itemnum, price; } } out_stream3.setf(ios::fixed); out_stream3.setf(ios::showpoint); out_stream3.precision(2); while (!out_stream3.eof()) // reads file to end of file { while((price== (price*1.00)) && (itemnum == (itemnum*1))) { out_stream3 << itemnum << price; itemnum++; price++; curr_total= price++; out_stream3 << curr_total; cin.clear(); // allows more reading cin >> next; return itemnum, price; } } in_stream4.setf(ios::fixed); in_stream4.setf(ios::showpoint); in_stream4.precision(2); while (!in_stream4.eof()) { in_stream4 >> itemnum >> price >> curr_total; cin.clear(); cin >> next; } out_stream5.setf(ios::fixed); out_stream5.setf(ios::showpoint); out_stream5.precision(2); out_stream5 <<setw(5)<< " itemnum " <<setw(5)<<" price "<<setw(5)<<" curr_total " <<endl; // sends items and prices to receipt.txt out_stream5 << setw(5) << itemnum << setw(5) <<price << setw(5)<< curr_total; // sends items and prices to receipt.txt out_stream5 << " You have a total of " << wrong++ << " errors " << endl; in_stream.close(); // closing files. out_stream1.close(); in_stream2.close(); out_stream3.close(); in_stream4.close(); out_stream5.close(); system("pause"); }

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  • sqlite - any improvements for this attach code (running multiple sql commands transactionally in sql

    - by Greg
    Hi, Is this code solid? I've tried to use "using" etc. Basically a method to pass as sequenced list of SQL commands to be run against a Sqlite database. I assume it is true that in sqlite by default all commands run in a single connection are handled transactionally? Is this true? i.e. I should not have to (and haven't got in the code at the moment) a BeginTransaction, or CommitTransaction. It's using http://sqlite.phxsoftware.com/ as the sqlite ADO.net database provider. private int ExecuteNonQueryTransactionally(List<string> sqlList) { int totalRowsUpdated = 0; using (var conn = new SQLiteConnection(_connectionString)) { // Open connection (one connection so should be transactional - confirm) conn.Open(); // Apply each SQL statement passed in to sqlList foreach (string s in sqlList) { using (var cmd = new SQLiteCommand(conn)) { cmd.CommandText = s; totalRowsUpdated = totalRowsUpdated + cmd.ExecuteNonQuery(); } } } return totalRowsUpdated; }

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  • How to do this GQL query in JDO

    - by TheDon
    I have about 50k entities stored in appengine. I am able to look up an individual record via the GQL admin interface with a query like: SELECT * FROM Pet where __key__ = KEY( 'Pet','Fido') But I'm having trouble figuring out how to do a batch version of this via JDO. Right now I have this: PersistenceManager pm = ...; for(Pet pet : pets) { for(String k : getAllAliases(pet)) { keys.add(KeyFactory.createKeyString(Pet.class.getSimpleName(), k)); } } Query q = pm.newQuery("select from " + Pet.class.getName() + " where id == :keys"); List<Pet> petlist = (List<Pet>) q.execute(keys); But though 'Fido' works in the GQL case, it returns nothing when I use that Java + JDO code. What am I doing wrong?

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  • Make Android Activity looks like dialog

    - by Matroska
    Hi, I am trying to open a dialog on widget click. I have solved the problem skinning the activity started on click with android:theme="@android:style/Theme.Dialog". Unfortunately I cannot reach the same look of a dialog. This is the outcome: http://i50.tinypic.com/n15lcy.png while I would like to reach this result (except for the button, of course): h ttp://i48.tinypic.com/2ithqpc.png (the widget dialog you can see keeping the screen pushed) As you can see there are some differences: the color of the list items, the color of the text and the list item separator. Is there a predefined theme/style to obtain the same look of a standard dialog? If not, what are the steps to follow to reach that result? I have seen that the widget provided by FoxyRing has the behaviour I would like to have. Thanks

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