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  • Binding the selected value from a combobox to a member of a class.

    - by CM
    I have a combobox that is bound to a an instance of a class. I need to get the user's selection ID of the combobox and set a class property equal to it. For example, here is the class: public class robot { private string _ID; private string _name; private string _configFile; [XmlElement("hardware")] public hardware[] hardware; public string ID { get { return _ID; } set { _ID = value; } } public string name { get { return _name; } set { _name = value; } } public string configFile { get { return _configFile; } set { _configFile = value; } } } Now here is the code to bind the combobox to an instance of that class. This display's the name of each robot in the array in the combobox. private void SetupDevicesComboBox() { robot[] robot = CommConfig.robot; cmbDevices.DataSource = robot; cmbDevices.DisplayMember = "name"; cmbDevices.ValueMember = "ID"; } But now I can't seem to take what the user selects and use it. How do I use the "ID" of what the user select's from the combobox? Settings.selectedRobotID = cmbDevices.ValueMember; //This just generates "ID" regardless of what is selected. I also tried Settings.selectedRobotID = cmbDevices.SelectedItem.ToString(); //This just generates "CommConfig.robot" Thanks

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  • How to send XML data through socket InputStream

    - by THeK3nger
    Hi, I'm trying to write a client-server application in Java with an XML-based protocol. But I have a great problem! See this part of client code: InputStream incoming = skt.getInputStream(); //I get Stream from Socket. OutputStream out = skt.getOutputStream(); [...] XMLSerializer serializer = new XMLSerializer(); //This create an XML document. tosend = WUTPClientWriter.createMessage100(projectid, cpuclock, cpunumber); serializer.setOutputByteStream(out); serializer.serialize(tosend); At this point server fall in deadlock. It wait for EOF but I can't send it because if I use out.close(); or skt.shutdownOutput(); I close Socket and I must keep alive this connection. I can't send '\0' becouse I get Parse Error in the server. How can I do? Can I "close" output stream without close socket? RESOLVED I've created new class XMLStreamOutput and XMLStreamInput with advanced Stream gesture.

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  • Entity Framework: a proxy collection for displaying a subset of data

    - by Jefim
    Imagine I have an entity called Product and a repository for it: public class Product { public int Id { get; set; } public bool IsHidden { get; set; } } public class ProductRepository { public ObservableCollection<Product> AllProducts { get; set; } public ObservableCollection<Product> HiddenProducts { get; set; } } All products contains every single Product in the database, while HiddenProducts must only contain those, whose IsHidden == true. I wrote the type as ObservableCollection<Product>, but it does not have to be that. The goal is to have HiddenProducts collection be like a proxy to AllProducts with filtering capabilities and for it to refresh every time when IsHidden attribute of a Product is changed. Is there a normal way to do this? Or maybe my logic is wrong and this could be done is a better way?

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  • PHP mysql multi-table search returning different table and field data row after row

    - by Kinyanjui Kamau
    Hi Guys, I am building a social networking site that is dedicated to nightclubs and night events. Among other tables, I have a users table, events table and establishments table. I am really intrigued with how Facebook in particular is able to query and return matches of not just users but also pages, ads etc row after row. Im sure most who are reading this have tried the facebook search My question is in my case, should I: Perform 3 separate LIKE %search% on each of the tables on search.php. Draw up 3 separate tables to show the results of what matches in the relevant queries which are collapsed when empty(on the same search.php) ie In search.php //query users table $query_user = "SELECT user_first_name, user_last_name, username, picture_thumb_url, avatar FROM users JOIN picture ON users.user_id = picture.user_id AND picture.avatar=1 ORDER BY users.user_id"; $result_users = mysql_query($query_user, $connections) or die(mysql_error()); $row_result_users = mysql_fetch_assoc($wid_updates); //query events table $query_event = "SELECT event_thumb_url, event_name, event_venue, event_date FROM event WHERE event_name LIKE '%".$search_value."%'"; $event = mysql_query($query_event, $connections) or die(mysql_error()); $row_event = mysql_fetch_assoc($event); $totalRows_event = mysql_num_rows($event); //query establishments table $query_establishment = "SELECT establishment_thumb_url, establishment_name, location_id, establishment_pricing FROM establishment WHERE establishment_name LIKE '%".$search_value."%'"; $establishment = mysql_query($query_establishment, $connections) or die(mysql_error()); $row_establishment = mysql_fetch_assoc($establishment); $totalRows_establishment = mysql_num_rows($establishment); My html: <table max-width="500" name="users" border="0"> <tr> <td width="50" height="50"></td> <td width="150"></td> <td width="150"></td> <td width="150"></td> </tr> </table> <table width="500" name="events" border="0"> <tr> <td width="50" height="50"><a href="#profile.php"><img src="Images/<?php echo $row_event['event_thumb_url']; ?>" border="0" height="50" width="50"/></a></td> <td width="150"><?php echo $row_event['event_name']; ?></td> <td width="150"><?php echo $row_event['event_venue']; ?></td> <td width="150"><?php echo $row_event['event_date']; ?></td> </tr> </table> <table width="500" name="establishments" border="0"> <tr> <td width="50" height="50"><a href="#profile.php"><img src="Establishment_Images/<?php echo $row_establishment['establishment_thumb_url']; ?>" border="0" height="50" width="50"/></a></td> <td width="150"><?php echo $row_establishment['establishment_name']; ?></td> <td width="150"><?php echo $row_establishment['location_id']; ?></td> <td width="150"><?php echo $row_establishment['establishment_pricing']; ?></td> </tr> </table> I haven't populated the PHP echo's for the user table. This is just to give you an idea of what I am trying to do. Any assistance?

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  • Simple C++ container class that is thread-safe for writing

    - by conradlee
    I am writing a multi-threaded program using OpenMP in C++. At one point my program forks into many threads, each of which need to add "jobs" to some container that keeps track of all added jobs. Each job can just be a pointer to some object. Basically, I just need the add pointers to some container from several threads at the same time. Is there a simple solution that performs well? After some googling, I found that STL containers are not thread-safe. Some stackoverflow threads address this question, but none that forms a consensus on a simple solution.

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  • get data using junction table with linq-sql confused :$

    - by raklos
    Im using linq-sql .I have 3 tables. e.g Project, People and a ProjectsPeople(fk's ProjectID and PeopleID) (junction) Table. given a set of peopleIDArray (an array of ints as people ID's) how can i get only Projects that have atleast one of the peopleId's associated with them? i.e there will be atleast one (may be more) record in the ProjectsPeople table that will have a ProjectId and an id from the peopleIDArray ) thanks

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  • PHP Doctrine: filtering data which is already loaded?

    - by ropstah
    I'm new to Doctrine and ActiveRecord. How should I filter a table after it has been loaded? (i suppose this is preferred over sending multiple queries?) Is this 'good' or 'bad'? class UserTable extends Doctrine_Table { function filterByGroup($group) { $ut = new UserTable(); foreach($this as $u) { if($u->group = $group) $ut->add($u); } return $ut; } }

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  • MySQL: Selecting One Record When Others Have Same Data

    - by LoganFrederick
    I have a table of cities that all share the same area code: 367 01451 Harvard Worcester Massachusetts MA 978 Eastern 368 01452 Hubbardston Worcester Massachusetts MA 978 Eastern 369 01453 Leominster Worcester Massachusetts MA 978 Eastern The table has multiple area codes, all with multiple cities. What I'd like to do is only select one city from each area code and delete any extra cities from duplicate area codes. What would be the best query to accomplish this? I believe: http://stackoverflow.com/questions/596629/mysql4-sql-for-selecting-one-or-zero-record Is coming close to what I need but didn't quite get what/how those answers were working. Note The "978" row is the "area_code" row, table name is "zip_code".

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  • Tree data structure in php

    - by Piyush
    in my application user starts a new tree or get added under a child-user and keep on adding users in branches in such a way- >there are 10 level of tree type structure. >root node contain 1 user and each node(user) can have max 5 child-user in this way tree will be like level 0 = 1 user , level 1 = 5 user, level 2 = 25 user , level 3 = 125 user and so on. I created one MySQL table having columns like- User_id , level, super_id, child1_id, child2_id, child3_id, child4_id, child5_id my question is How can I get all child-user(child to child also) of a particular user at any level do I need to add some more columns in my table??

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  • which type is best for three radiobuttons?

    - by Manog
    Maybe you consider this question trivial but im just curious what is your opinion. I have three radiobuttons. "Show blue", "Show red" and "Show all". I did it with nullable boolean. There is collumn in database where blue is 0 and red is 1 so in metode i have to translate bool to int to compare those values (i do it in c#).Of course it works, but i wonder if it is the best solution. And question is wich type is best in this case? nullable bool, int, or maybe string?

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  • C#: Passing data to forms UI using BeginInvoke

    - by Bi
    Hi I am a C# newbie and have a class that needs to pass row information to a grid in the windows form. What is the best way to do it? I have put in some example code for better understanding. Thanks. public class GUIController { private My_Main myWindow; public GUIController( My_Main window ) { myWindow = window; } public void UpdateProducts( List<myProduct> newList ) { object[] row = new object[3]; foreach (myProduct product in newList) { row[0] = product.Name; row[1] = product.Status; row[2] = product.Day; //HOW DO I USE BeginInvoke HERE? } } } And the form class below: public class My_Main : Form { //HOW DO I GO ABOUT USING THIS DELEGATE? public delegate void ProductDelegate( string[] row ); public static My_Main theWindow = null; static void Main( ) { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); theWindow = new My_Main(); Application.Run(theWindow); } private void My_Main_Load( object sender, EventArgs e ) { /// Create GUIController and pass the window object gui = new GUIController( this ); } public void PopulateGrid( string[] row ) { ProductsGrid.Rows.Add(row); ProductsGrid.Update(); } } Thanks!

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  • Would my situation be an appropriate place to use the ' /i ' REGEX attribute?

    - by Solignis
    I am making a large catalogue of all of the possible OS names that can be supported by my particular version of VMWare. Originally I was writing them all as they stood in the VMX files but then I found a website that had them all listed, the problem is they are not properly cased to provide a "perfect" match, would this be the perfect time to use the regex attribute for case insensitivity? Also as a side question, would it be possibly extract the list of OSs from the website?. They look to be in a HTML formated chart. It would save me a lot of time having to type them all out.

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  • Core Data combined Query

    - by Chris Summer
    Hey, i have question related to CoreData. My iphone project has 2 Entities, Organisation and Brand with a 1 to many "BrandsToOrg" relationship and inverse. So my project has a Mapview, where you can see all the Organisations and a little subview when you click on those Organisations.At the subview there is a "show Brands" Button, which should init a new TableView who only shows the brands belong to the seleceted organisation. Any ideas how i can code that? thx NSPredicate *predicate = [NSPredicate predicateWithFormat: @"(TitleMedium == %@)",@"Rock Antenne"];???? NSFetchRequest *request = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:self.entityName inManagedObjectContext:managedObjectContext]; [request setEntity:entity]; // If a predicate was passed, pass it to the query if(predicate != nil) { [request setPredicate:predicate]; } // If a sort key was passed, use it for sorting. NSString *sortKey=@"TitleMedium"; BOOL sortAscending=YES; if(sortKey != nil) { NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:sortKey ascending:sortAscending]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; [request setSortDescriptors:sortDescriptors]; [sortDescriptors release]; [sortDescriptor release]; } NSError *error; NSMutableArray *mutableFetchResults = [[managedObjectContext executeFetchRequest:request error:&error] mutableCopy]; [request release]; [self setEntityArray:mutableFetchResults];

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  • How to design model for multi-tiered data?

    - by Chris
    Say I have three types of object: Area, Subarea and Topic. I want to be able to display an Area, which is just a list of Subareas and the Topics contained in those Subareas. I never want to be able to display Subareas separately - they're just for breaking up the Topics. Topics can, however, appear in multiple Areas (but probably under the same Subarea). How would I design a model for this? I could use ForeignKey from Topic to Subarea and from Subarea to Area, but it seems unnecessarily complex given that I never want to interact with subareas themselves. Also, none of these objects are ever altered or added to by the user. They're just for me to represent information. Maybe there is a better way to represent it all?

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  • pagination using php with mysql data

    - by pradeep
    i am trying to create a pagination in which there are 5 items at a time depending on the number of items in DB. i wrote this code . but i dono how to go further .its buggy..any better pagination or alteration for this <?php $myresult .= "<div class='pagination' >"; if ($pagenum == 1) { } else { $pagenum = 1; $myresult .= "<a href='javascript:newPage(\"".$pagenum."\")'>&nbsp;first&nbsp;</a>"; $myresult .= " "; $previous = $pagenum-1; $myresult .= "<a href='javascript:newPage(\"".$previous."\")'> &nbsp;Prev&nbsp;</a>"; if ($pagenum == $last) { $previous3 = $pagenum-4; $myresult .= "<a href='javascript:newPage(\"".$previous3."\")'> &nbsp; $previous3 &nbsp;</a>"; $previous2 = $pagenum-3; $myresult .= "<a href='javascript:newPage(\"".$previous2."\")'> &nbsp; $previous2 &nbsp;</a>"; } if ($pagenum > 2) { $previous1 = $pagenum-2; $myresult .= "<a href='javascript:newPage(\"".$previous1."\")'> &nbsp; $previous1 &nbsp;</a>"; } if ($pagenum > 1) { $previous2 = $pagenum-1; $myresult .= "<a href='javascript:newPage(\"".$previous2."\")'> &nbsp; $previous2 &nbsp;</a>"; $myresult .= " "; } } $myresult .= "<span class=\"disabled\"> $pagenum </span>"; if ($pagenum == $last) { } else { if($pagenum < $last - 1) { $next = $pagenum+1; $myresult .= "<a href='javascript:newPage(\"".$next."\")'>&nbsp; $next &nbsp;</a>"; } if($pagenum < $last - 2) { $next1 = $pagenum+2; $myresult .= "<a href='javascript:newPage(\"".$next1."\")'> &nbsp; $next1 &nbsp;</a>"; } if($pagenum == 1 ) { $next2 = $pagenum+3; $myresult .= "<a href='javascript:newPage(\"".$next2."\")'> &nbsp; $next2 &nbsp;</a>"; $next3 = $pagenum+4; $myresult .= "<a href='javascript:newPage(\"".$next3."\")'> &nbsp; $next3 &nbsp;</a>"; } if($pagenum == 2 ) { $next2 = $pagenum+3; $myresult .= "<a href='javascript:newPage(\"".$next2."\")'> &nbsp; $next2 &nbsp;</a>"; } $next = $pagenum+1; $myresult .= "<a href='javascript:newPage(\"".$next."\")'>&nbsp;Next&nbsp;</a>"; $myresult .= "<a href='javascript:newPage(\"".$last."\")'>&nbsp;Last</a>"; } $myresult .= "</div>"; $myresult .= "</br>"; ?>

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  • Selecting data effectively sql

    - by learner135
    Hi, I have a very large table with over 1000 records and 200 columns. When I try to retreive records matching some criteria in the WHERE clause using SELECT statement it takes a lot of time. But most of the time I just want to select a single record that matches the criteria in the WHERE clause rather than all the records. I guess there should be a way to select just a single record and exit which would minimize the retrieval time. I tried ROWNUM=1 in the WHERE clause but it didn't really work cause I guess the engine still checks all the records even after finding the first record matching the WHERE criteria. Is there a way to optimize in case if I want to select just a few records? Thanks in advance. Edit: I am using oracle 10g.

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  • html rending of a prtion of data

    - by pradeep
    Hi, I have a section like $myresult .= '<tbody>'; /*start printing the table wth feature and ratings */ for ($i = 1 ; $i < $numProperties; $i++){ if($master_rating_properties['rating'.$i.'_name']){ $myresult .= '<tr>'; $myresult .= '<td width=\'22%\'>'; $indfeature = 0; $indfeature = $row_product['property'.$i.'_avg']; $myresult .= $master_rating_properties['rating'.$i.'_name'].' ( '.$indfeature .')'; $myresult .= '</td>'; $myresult .= '<td colspan=\'0\' width=\'38%\' >'; $tocheck = $indfeature; for($k = 0.5; $k <= 10.0; $k+=0.5){ $tocheck = roundOff($tocheck); if(($tocheck) == $k) { $chk = "checked"; } else { $chk = ""; } $myresult .= '<input class=\'star {split:2}\' type=\'radio\' name=\'drating'.$i.'\' id=\'drating'.$i.''.$k.'\' value=\''. $k .'\' '.$chk.' title=\''. $k.' out of 10 \' disabled \'/>'; } /* for k loop end */ /* added later ,was missing */ $myresult .= '</td>'; $myresult .= '</tr>'; } /* end if loop */ } /* end i for loop */ $myresult .= '</tbody>'; /* end tbody */ it works fine like printing the 10 stars(radio buttons) horizontally . but many a time all the 10 stars turn vertical.and after few browser refreshes it comes back to horizontal position. any idea .y this is causing problem? does tbody tag cause some problem.

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  • Fastest way for inserting very large number of records into a Table in SQL

    - by Irchi
    The problem is, we have a huge number of records (more than a million) to be inserted into a single table from a Java application. The records are created by the Java code, it's not a move from another table, so INSERT/SELECT won't help. Currently, my bottleneck is the INSERT statements. I'm using PreparedStatement to speed-up the process, but I can't get more than 50 recods per second on a normal server. The table is not complicated at all, and there are no indexes defined on it. The process takes too long, and the time it takes will make problems. What can I do to get the maximum speed (INSERT per second) possible? Database: MS SQL 2008. Application: Java-based, using Microsoft JDBC driver.

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  • Replace html element with data in javascript

    - by Ultimate
    I trying to auto increment the serial number when row increases and automatically readjust the numbering order when a row gets deleted in javascript. For that I am using the following clone method for doing my task. Rest of the thing is working correct except its not increasing the srno because its creating the clone of it. Following is my code for this: function addCloneRow(obj) { if(obj) { var tBody = obj.parentNode.parentNode.parentNode; var trTable = tBody.getElementsByTagName("tr")[1]; var trClone = trTable.cloneNode(true); if(trClone) { var txt = trClone.getElementsByTagName("input"); var srno = trClone.getElementsByTagName("span"); var dd = trClone.getElementsByTagName("select"); text = tBody.getElementsByTagName("tr").length; alert(text) //here i am getting the srno in increasing order //I tried something like following but not working //var ele = srno.replace(document.createElement("h1"), srno); //alert(ele); for(var i=0; i<dd.length; i++) { dd[i].options[0].selected=true; var nm = dd[i].name; var nNm = nm.substring((nm.indexOf("_")+1),nm.indexOf("[")); dd[i].name = nNm+"[]"; } for(var j=0; j<txt.length; j++) { var nm = txt[j].name; var nNm = nm.substring((nm.indexOf("_")+1),nm.indexOf("[")); txt[j].name = nNm+"[]"; if(txt[j].type == "hidden"){ txt[j].value = "0"; }else if(txt[j].type == "text") { txt[j].value = ""; }else if(txt[j].type == "checkbox") { txt[j].checked = false; } } for(var j=0; j<txt.length; j++) { var nm = txt[j].name; var nNm = nm.substring((nm.indexOf("_")+1),nm.indexOf("[")); txt[j].name = nNm+"[]"; if(txt[j].type == "hidden"){ txt[j].value = "0"; }else if(txt[j].type == "text") { txt[j].value = ""; }else if(txt[j].type == "checkbox") { txt[j].checked = false; } } tBody.insertBefore(trClone,tBody.childNodes[1]); } } } Following is my html : <table id="step_details" style="display:none;"> <tr> <th width="5">#</th> <th width="45%">Step details</th> <th>Expected Results</th> <th width="25">Execution</th> <th><img src="gui/themes/default/images/ico_add.gif" onclick="addCloneRow(this);"/></th> </tr> <tr> <td><span>1</span></td> <td><textArea name="step_details[]"></textArea></td> <td><textArea name="expected_results[]"></textArea></td> <td><select onchange="content_modified = true" name="exec_type[]"> <option selected="selected" value="1" label="Manual">Manual</option> <option value="2" label="Automated">Automated</option> </select> </td> <td><img src="gui/themes/default/images/ico_del.gif" onclick="removeCloneRow(this);"/></td> </tr> </table> I want to change the srno. of span element dynamically after increment and decrement on it. Need help thanks

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  • Retrieve value of one column in a table

    - by user327094
    Here is my problem: I have 2 tables Accounts and Transaction Logs. in Accounts table, it has column "Amount" which is a base amount of an account. and in Trans Logs table, it also has column "Amount" which is additional (add or minus to the base amount) amount of the account. and I don't know how to retrieve that base amount to edit it, then save it back to the table. That means I need to get a value of the right column by using Acc_No to find. I'm using DataSet, by the way. i think it should go like this: Dim Amount as Decimal Amount = *the code to retrieve the base amount* Amount = Amount + txtAmount.Text *the code to save the new amount back to Accounts table* Thank you!

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  • How can you tell which columns are unused in ALL_TAB_COLS?

    - by thecoop
    When you query the ALL_TAB_COLS view on Oracle 9i, it lists columns marked as UNUSED as well as the 'active' table columns. There doesn't seem to be a field that explicitly says whether a column is UNUSED, or any view I can join to that lists the unused columns in a table. How can I easily find out which are the unused columns, so I can filter them out of ALL_TAB_COLS?

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