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  • Perl, time efficient hash

    - by Mike
    Is it possible to use a Perl hash in a manner that has O(log(n)) lookup and insertion? By default, I assume the lookup is O(n) since it's represented by an unsorted list. I know I could create a data structure to satisfy this (ie, a tree, etc) however, it would be nicer if it was built in and could be used as a normal hash (ie, with %)

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  • apt-get commands pausing at 'Waiting for headers' [closed]

    - by Matt
    I have a VM running Ubuntu Server 9.10 running a basic web server setup. Whenever I run an apt function it will pause for around 1 minute at 'Waiting for headers...'. It will eventually clear through and continue as normal but it is a bit of an annoyance. Everything else on the server seems to run fine. Any ideas?

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  • Mac OS X change IP configuration automatically by location (by Wifi network)?

    - by Seppo Sade
    Can Mac OS X be setup to automatically configure its Airport interface with a static IP address when connected to a Wifi network with a certain name, and on all other Wifi networks use DHCP? Currently I'm using the "Locations" feature of the "Network" section in System Preferences to manually switch between two IP address setups. I have a "my static IP" setup, and a default "DHCP" setup. However this requires entering System Preferences to change the Location drop-down each time when switching locations. Can this be automated? Preferably this would be done without third-party software.

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  • Order By Problem T-Sql

    - by Nick LaMarca
    I have a sql statement I am using a simple sort such as the following Select numbers From theTable Order By numbers What I get in return is the following 1 11 12 14 2 21 22 23 3 35 37 etc... I want it to be ordered in normal order 1 2 3 4 5 6 etc...

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  • innerhtml not working on blogger

    - by HAnlin Cal
    I'm working on a simple vote system. It works fine when the two files are together(locally). However, when I publish it on blogger, it is unable to output the results. (on click the vote gets registered on the webhost, but the results just don't show!) heres my code: <script type="text/javascript"> function getVote(int) { if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { document.getElementById("poll").innerHTML=xmlhttp.responseText; } } xmlhttp.open("GET","http://pacontest.eu.pn/poll_vote.php?vote="+int,true); xmlhttp.send(); } </script> <div id="poll"> <h3>Do you like this?</h3> <form> Yes: <input type="radio" name="vote" value="0" onclick="getVote(this.value)" /> No: <input type="radio" name="vote" value="1" onclick="getVote(this.value)" /> </form> </div>

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  • how to add an ajax jQuery code, that return a row from php file [DB] and then change the value of input text?

    - by Nisreen KH
    //this is a code in php which is fetch a record from database <?php include("dbconn.inc"); $data=mysql_query("SELECT `subtitle`, `mian-title`, `page_num`, `note_path`, `flash_path` FROM `main-page` WHERE `page_num` =".$r." LIMIT 1"); echo $data; if (mysql_num_rows($data) == 0) { echo "No rows found, nothing to print so am exiting"; exit; } while ($row = mysql_fetch_assoc($data)) { echo $row['page_num']; } include("close.php"); ?> //and this is a code in html <form method="post" action="data.php"> <input name="Button1" type="submit" value="&lt;&lt;" /> <input name="test" style="width: 31px; height: 23px" type="text" /> // this is a value of page_num in DB. <input name="Button2" type="submit" value="&gt;&gt;" > </form> //i want to add an ajax code to retrieve the record from php code, and then change the input values depends on returned data ,and also to prevent refreshing the page always!!

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  • RichTextBox specific colors per few charicters / lines C#

    - by Xavier
    i have say, richTextBox1, and here is the contents: line one from my textbox is this, and i want this to be normal, arial, 8 point non-bold font line two, i want everything after the | to be bolded... | this is bold line three: everything in brackets i (want) to be the color (Red) line 4 is "this line is going to be /slanted/ or with italics and so on, basically if i know how to do what i mentioned above, ill know everything i need to know to complete my project. code examples would be very very much appricaited! :)

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  • POST method getting converted to GET in IE-9

    - by Sri127
    I have this line of code in my JSP. (I'm using struts 1.3) <html:form action="screening/mine.do" method="post"> . . . </html:form When the action corresponding to mine.do is invoked (using struts-config.xml), the page is getting submitted as GET instead of POST. All the request parameters including the required ones are getting lost due to this. This issue occcurs only in IE-9. The response remains as POST when I use other versions of IE or any other browsers. How do I make the response to remain as POST in IE-9 ? EDIT : I observed one more issue in this. Whenever the page is rendered in a new window, this issue occurs. Other places, the POST works fine in IE-9. Also, this issue occurs in Win7/IE-8, but works absolutely fine in XP/IE-8. Is there something to do with the OS as well??? Any solutions would be useful. Thanks!!

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  • Mysterious double execution of Click handler after change to Windows 2008 Server

    - by mjn
    After moving a Delphi 2009 application from a Windows 2003 / Citrix environment to a 64 bit Windows 2008 R2 environment (users now use RDP instead of Citrix), there are frequent runtime errors which are caused by a double exection of a menu item click handler. The first call of the event handler opens a modal form. Then the same event handler is triggered again and thus a runtime exception occurs since the visible form can not be made modal. The madExcept stack trace looks like this: main thread ($2dc): 004ffa88 +06c Ladelist.exe Forms TCustomForm.ShowModal 0052f4ff +0bb Ladelist.exe DB TDataSet.SetActive 008fc9a1 +089 Ladelist.exe u_ladeli 928 +16 TForm1.EditLoadingList 008fadec +070 Ladelist.exe u_ladeli 504 +5 TForm1.OpenLoadingListClick <----- 2 004d6e27 +0a7 Ladelist.exe Menus TMenuItem.Click 004d857f +0ef Ladelist.exe Menus DoClick 004d866b +087 Ladelist.exe Menus TMenu.IsShortCut 005001c1 +04d Ladelist.exe Forms TCustomForm.IsShortCut 004e8dc0 +068 Ladelist.exe Controls TWinControl.IsMenuKey 004e8f89 +011 Ladelist.exe Controls TWinControl.CNSysKeyDown 004e247e +2d2 Ladelist.exe Controls TControl.WndProc 004e6983 +513 Ladelist.exe Controls TWinControl.WndProc 004fb5e8 +594 Ladelist.exe Forms TCustomForm.WndProc 004e20a4 +024 Ladelist.exe Controls TControl.Perform 004856e0 +014 Ladelist.exe Classes StdWndProc 004e609c +02c Ladelist.exe Controls TWinControl.MainWndProc 004856e0 +014 Ladelist.exe Classes StdWndProc 775b00e3 +02b ntdll.dll KiUserCallbackDispatcher 008fc9a1 +089 Ladelist.exe u_ladeli 928 +16 TForm1.EditLoadingList 008fadec +070 Ladelist.exe u_ladeli 504 +5 TForm1.OpenLoadingListClick <----- 1 004d6e27 +0a7 Ladelist.exe Menus TMenuItem.Click 004d857f +0ef Ladelist.exe Menus DoClick 004d866b +087 Ladelist.exe Menus TMenu.IsShortCut 005001c1 +04d Ladelist.exe Forms TCustomForm.IsShortCut 004e8dc0 +068 Ladelist.exe Controls TWinControl.IsMenuKey 004e8e0d +01d Ladelist.exe Controls TWinControl.CNKeyDown 004e247e +2d2 Ladelist.exe Controls TControl.WndProc 004e6983 +513 Ladelist.exe Controls TWinControl.WndProc 004fb5e8 +594 Ladelist.exe Forms TCustomForm.WndProc 004e20a4 +024 Ladelist.exe Controls TControl.Perform 004e609c +02c Ladelist.exe Controls TWinControl.MainWndProc 004856e0 +014 Ladelist.exe Classes StdWndProc 775b00e3 +02b ntdll.dll KiUserCallbackDispatcher 753c3675 +010 kernel32.dll BaseThreadInitThunk

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  • sub menu border calls onmouseout event

    - by insanepaul
    I've created a simple menu and submenu with tags(not allowed to use ul elements). To access the submenu the user hovers their mouse over the menu item. I use the onmouseover and onmouseout events to either show or hide the sub menu depending on which item is selected. A pipe (|) is used to seperate each submenu item and this is what is causing me problems. When a user hovers their mouse above the pipe character the subMenu div calls the onmouseout event which is not what I want. So I added padding around the pipe character and a minus margin so that there were no gaps between the pipe character and the other elements. This worked for all browsers including IE8. But in IE7 (I haven't tested IE6 yet) the submenu div calls the onmouseout event when I touch the top bit of either the left or right border of the pipe character span element. <div id="subMenu" onmouseout="hideSubMenu()" > <div id="opinionSubMenu" onmouseover="showOpinionSubMenu()"> <a id="Blogs" href="HTMLNew.htm">BLOGS</a> <span class="SubMenuDelimiter">|</span> <a id="Comments" href="HTMLNew.htm">COMMENTS</a> <span class="SubMenuDelimiter">|</span> <a id="Views" href="HTMLNew.htm">VIEWS</a> </div> <div id="learningSubMenu" onmouseover="showLearningSubMenu()"> <a id="Articles" href="HTMLNew.htm">ARTICLES</a> <span class="SubMenuDelimiter">|</span> <a id="CoursesCases" href="HTMLNew.htm">COURSES & CASES</a> <span class="SubMenuDelimiter">|</span> <a id="PracticeImpact" href="HTMLNew.htm">PRACTICE IMPACT</a> </div> </div> This is my css class #subMenu{ padding:10px 0px; background-color:#F58F2D; font-weight:normal; text-decoration:none; font-family:Lucida Sans Unicode; font-size:14px; float:left; width:100%; display:none;} #Blogs, #Comments, #Views, #Articles { padding:10px 5px; background:none repeat scroll 0 0 transparent; color:#000000; font-weight:normal; text-decoration:none; border:solid 1px black;} #Blogs:hover, #Comments:hover, #Views:hover, #Articles:hover{ color:#ffffff; text-decoration:none;} .SubMenuDelimiter{ padding:10px 5px; margin:10px -5px;}

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  • button onclick not working

    - by nsw1475
    I have a javascript where I need to hide (and eventually show) some text by clicking a button. However, when I click the button, it does not call the function specified in the onclick parameter, and so nothing happens. Here is my source code: <script type="text/javascript"> $(document).ready(function(){ var tip = 1; $(".tip1").hide(); $(".tip2").hide(); switch (tip) { case 1: $(".tip1").show(); break; case 2: $(".tip2").show(); break; } function nextTip() { $(".tip1").hide(); return; } }); </script> <br/> <div id='bg_container' style='background-image: url("<?=$PICS?>trackingpage_middle.jpg")' > <img style='z-index:-1;' width='737px' src='<?=$PICS?>trackingpage_top.jpg'> <div id='main_container' > <form> <input type="button" onClick="nextTip()" value = "Next Tip" /> </form> <div class="tip1"> ... and so on.

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  • Visual Studio Default Open File Action

    - by Kleinux
    I am using Visual Studio 2008 with C#. Is there a way to set the default editor for a class file containing a DataTable derived class? Whenever I double click on one of these classes to open the file VS attempts to open a component designer. Since my class isn't compatible with that editor this is a rather useless default. I would like these files to open up in the normal code editor.

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  • change value after ajax request!

    - by Lina
    if i have 3 html pages as follows: home.html: <form method="get"> <input class="someForm" type="radio" value="1" name="someForm" /> Name <input class="someForm" type="radio" value="2" name="someForm" /> Email <div id="container"></div> <input type="submit" /> </form> <script type="text/javascript" src="jquery.js"></script> <script> var ajaxResponse = new Object(); $(document).ready(function () { $('.someForm').click(function () { var rbVal = $(this).val(); var myContent; if (ajaxResponse[rbVal]) { //in cache myContent = ajaxResponse[rbVal]; $("#container").html(myContent); } else { // not in cache var urlForAjaxCall = "file" + rbVal + ".html"; $.get(urlForAjaxCall, function (myContent) { ajaxResponse[rbVal] = myContent; $("#container").html(myContent); }); } }); }); </script> file1.html: Name: <input type="text" name="1" value="myName" /> file2.html: Email: <input type="text" name="2" value="[email protected]" /> what i want to do is that when i write something in one of the textboxes and then click whichever radio button in home.html, the value attribute should be changed to the new value, any idea on how to do that? tia

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  • Set Mime_type validation in Symfony

    - by Ngu Soon Hui
    I want to make sure that during file upload time, only the file of the format jpeg, png and gif are allowed. So the "File of type:" below in the screenshot must show jpeg, png and gif: I did the following for my validator in Symfony: $this->setValidator ( 'upload your filehere', new sfValidatorFile ( array ( 'required'=>true, 'mime_types' => array ('image/jpeg, image/png, image/gif' ) ) , array( 'mime_types'=> 'only jpeg' ) ) ); but when I click on the upload button, the files are not filtered accordingly; what did I do wrong? I also try $this->setValidator ( 'upload your filehere', new sfValidatorFile ( array ( 'required'=>true, 'mime_types' => 'image/jpeg, image/png, image/gif' ) , array( 'mime_types'=> 'only jpeg' ) ) ); But it doesn't work, too. I tried the following in my form class, but unfortunately it doesn't work as well: <?php class UploadCaseForm extends sfForm { public function configure() { $this->setWidgets ( array ('Documents' => new sfWidgetFormInputFile ( ) ) ); $this->widgetSchema->setNameFormat ( 'UploadCase[%s]' ); $this->validatorSchema ['Documents'] = new sfValidatorFile ( array ('mime_types' => 'web_images' ), array ('invalid' => 'Invalid file.', 'required' => 'Select a file to upload.', 'mime_types' => 'The file must be of JPEG, PNG or GIF format.' ) ); } } ?> Here's the action code: public function executeIndex(sfWebRequest $request) { $this->form = new UploadCaseForm ( ); if ($this->getRequest ()->getMethod () == sfRequest::POST) { var_dump($request->getParameter('UploadCase')); } } Edit: The accepted answer is the answer, as far as the server side validation goes. If anyone wants a client side validation, i.e., filtering the type of file that can be uploaded even before the operation hits server, then maybe there is no reliable way to do it, because of browser's constraint.

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  • Load-balanced Linux server across internet?

    - by LinuxGnut
    I'm investigating setting up a load balanced server solution consisting of three CentOS 5.4 boxes. Two of these boxes will reside in one facility, while a third will reside in a different facility. I'm currently working to set up heartbeat, ldirectord, ipvsadm to load-balance the machines, but I'm not sure its going to work with I'm not overly familiar with the details behind how all of these work, but is the load balancing going to work correctly when these servers are not all on the same LAN? I'm not sure if heartbeat is using SNMP to send signals or not, which would only work over a LAN. Has anyone tried this or found a different solution?

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  • Create my own custom ellipsis bullet point

    - by Airn5475
    I regularly use an ellipsis as a bullet point in a list of items in Word/Outlook 2010. Example: I like summer because... ... it's warm out. ... we go on vacation. ... my birthday is in July. Currently in Word/Outlook if you type certain characters like a hyphen and hit space, it will automatically start a bulleted list using the hyphen. I would really like the same functionality with the ellipsis. When I type the third period and hit space, start a bulleted list. Does anyone know of a way to do this? Registry hack? Hidden Word Setting?

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  • What is the downside to Windows XP style DPI scaling in Windows 7

    - by JavaNinja
    I recently just moved to Windows 7 and I noticed that many of my older third-party apps didn't look so good at the high DPI I had set (150dpi versus the typical 96dpi). After searching the web for ways to get my apps to look good again, I stumbled upon the "Windows XP style DPI scaling" option. I enabled it and suddenly the apps looked good again. While I'm happy, I'm also suspicious. What did I lose by enabling this feature? Could someone explain to me the differences in how the screen is rendered with and without this feature, or explain the trade offs of using it?

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  • How to get JTree expanded?

    - by Dzmitry Zhaleznichenka
    I have a wizard with several screens where user has to fill his/her details for further processing. At the second screen I have a radio group with three radio buttons that enable additional elements. To proceed, user has to choose one of them. When user selects third button, single-selection JTree filled in with data enables and user has to select an option from it. Then user has to press "Next" to get to next screen. The option he\she had selected is stored as a TreePath. So far so good. My problem is the following. If the user wants to come back from the following screen to the screen with a JTree, I want to provide him\her with the JTree expanded to the option that had been selected and to highlight the option. However, whatsoever I try to do for that (any combinations of expandPath, scrollPathToVisible, addSelectionPath, makeVisible) always provides me with a collapsed tree. I try to expand both leaves and nodes. My code looks like this: rbProcessJTree.setSelected(isProcessJTree()); if (null != getSelectedTablePath()){ trTables.addSelectionPath(getSelectedTablePath()); trTables.expandPath(getSelectedTablePath()); trTables.scrollPathToVisible(getSelectedTablePath()); } When setSelected() is called, state change listener is invoked that enables JTree. The model is loaded during the form initialization. Each time I switch between screens, I save the input data from previous screen and dispose it. Then, when I need to open previous screen back, I save data from the following screen, dispose it, load data to this screen and show it. So each time the screen is generating from scratch. Could you please explain, what sequence of operations has to be done to get JTree expanded in a newly created form,with data model loaded and selection path provided?

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  • Practical way of keeping up-to-date backup servers?

    - by ftkg
    What is the approach generally used when you want to have backup physical servers? Currently I have a Linux server running a database, a samba share, a webapp and some scripts; and a Windows Server, running some third-party software. What I would like was to be able to have a ready backup server to enter in production in case of failure, but how to keep them up-to-date? I've seen some expensive solutions for Windows; for Linux I've wondered if I really have to build an array of scripts.

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  • current page highlights on child pages

    - by user557318
    Im trying to achieve current page highlights on wordpress similar to this site Alex Soth. I'm very nearly there with my css. At present i have current page highlights on pages, ie. home,calendar, projects. However when it come to current page highlights on child pages i have a problem. the indented child page list appears on hover when selecting a child page, but after page selection the menu reverts back to the standard pages menu with no visible child menus? unlike the link to the Alex Soth site where the extended menu stays and current page is highlighted I know that the answer will be a simple piece of css involving current_page_item and possible position:relative to obtain the menu staying visible after selection. But i can for the life of me work it out. Any ideas Ive attached my relivant pieces of css below?? thanks /* =Link Styles ------------------------------------------------------------------*/ input#submit { cursor: pointer; } input#searchsubmit { background: url(images/search.png) no-repeat center; } input#searchsubmit:hover { background: url(images/search.png) no-repeat center #3399FF !important; cursor: pointer; } .navigation a:hover, input#submit { background: #3399FF; color: #3399FF !important; } a { color: #666; } a:hover, a:hover span { color: #c11501 !important;background-color: #fae100; } .entry sup a, #main_nav .current_page_item a, #main_nav .current_page_ancestor a { color: #666 !important; } #main_nav h1.masthead a { color: #666; } #main_nav h1.masthead a:hover { border-right: none; } h2 a, #main_nav a { color: #3399FF; } img a, img a:hover { text-decoration: none; } .post a, .navigation a { font-weight: bold; color: #000; } .navigation a { background: #EEE; color: #666; font-weight: normal; padding: 3px 0px; border-radius: 0px; -webkit-border-radius: 0px; -moz-border-radius: 0px; } .post sup { font-size: 11px; color: #aaa; } .post sup a { border: 0; margin: 0; font-weight: normal; font-size: 10px; } #supplementary .post_nav ul.about_nav li a, #supplementary .post_nav ul.single_post_meta a, #supplementary ul.contact_key li a { color: #888888; border-bottom: 0; } /* =Main Menu ------------------------------------------------------------------*/ #main_nav ul.menu li { position: relative; } #main_nav ul.menu li:hover ul.sub-menu, #main_nav ul.menu li:hover ul.children { display: block; }

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  • How to Highlight image based on selection in JSF

    - by Paul
    The images are displayed horizontally using . At first no images are selected if selected it has to be highlighted. If user changes the selection the old has to go normal and new has to be highlighted. while in edit mode we need to highlight the already selected image and they may change in this mode so highlight should change. Bean is in session scope. pls provide some solution.

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  • Getting a Cross-Section from Two CSV Files

    - by Jonathan Sampson
    I have two CSV files that I am working with. One is massive, with about 200,000 rows. The other is much smaller, having about 12,000 rows. Both fit the same format of names, and email addresses (everything is legit here, no worries). Basically I'm trying to get only a subset of the second list by removing all values that presently exist in the larger file. So, List A has ~200k rows, and List B has ~12k. These lists overlap a bit, and I'd like to remove all entries from List B if they also exist in List A, leaving me with new and unique values only in List B. I've got a few tooks at my disposal that I can use. Open Office is loaded on this machine, along with MySQL (queries are alright). What's the easiest way to create a third CSV with the intersection of data?

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  • Strange behaviour of DataTable with DataGridView

    - by Paul
    Please explain me what is happening. I have created a WinForms .NET application which has DataGridView on a form and should update database when DataGridView inline editing is used. Form has SqlDataAdapter _da with four SqlCommands bound to it. DataGridView is bound directly to DataTable _names. Such a CellValueChanged handler: private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e) { _da.Update(_names); } does not update database state although _names DataTable is updated. All the rows of _names have RowState == DataRowState.Unchanged Ok, I modified the handler: private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e) { DataRow row = _names.Rows[e.RowIndex]; row.BeginEdit(); row.EndEdit(); _da.Update(_names); } this variant really writes modified cell to database, but when I attempt to insert new row into grid, I get an error about an absence of row with index e.RowIndex So, I decided to improve the handler further: private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e) { if (_names.Rows.Count<e.RowIndex) { DataRow row = _names.Rows[e.RowIndex]; row.BeginEdit(); row.EndEdit(); } else { DataRow row = _names.NewRow(); row["NameText"] = dataGridView1["NameText", e.RowIndex].Value; _names.Rows.Add(row); } _da.Update(_names); } Now the really strange things happen when I insert new row to grid: the grid remains what it was until _names.Rows.Add(row); After this line THREE rows are inserted into table - two rows with the same value and one with Null value. The slightly modified code: DataRow row = _names.NewRow(); row["NameText"] = "--------------" _names.Rows.Add(row); inserts three rows with three different values: one as entered into the grid, the second with "--------------" value and third - with Null value. I really got stuck in guessing what is happening.

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  • Convert asp.net application to windows forms app

    - by rogdawg
    I have written and deployed an ASP.NET application that is pretty complex. It uses XSL transformations to create web forms for a large variety of data objects. The data comes from the database as XML via a web service. Now, I need to create a Windows desktop application that will provide a small subset of the web applications functionality to a user who may not have access to the web (working in remote areas). I will provide the data syncing using the MS Sync Framework. And I will have the desktop use a local data store. I would like to use the same xslt files in the desktop app that I use in the web app for the form creation so that, if changes are made, the desktop app can update itself when it connects and syncs its data. But, I am wondering how to replicate the asp.net codebehind logic of my web app in the windows forms. If I use a browser control to render the XSLTransformation result, then how could I handle click events, etc, in the form? Also, can I launch other windows as "dialog boxes" from my windows forms (I do this in my web app using RadControls functionality)? Thanks for any advice you can give.

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