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• Is it a good practice to perform direct database access in the code-behind of an ASP.NET page?

  - by patricks418

  Hi, I am an experienced developer but I am new to web application development. Now I am in charge of developing a new web application and I could really use some input from experienced web developers out there. I'd like to understand exactly what experienced web developers do in the code-behind pages. At first I thought it was best to have a rule that all the database access and business logic should be performed in classes external to the code-behind pages. My thought was that only logic necessary for the web form would be performed in the code-behind. I still think that all the business logic should be performed in other classes but I'm beginning to think it would be alright if the code-behind had access to the database to query it directly rather than having to call other classes to receive a dataset or collection back. Any input would be appreciated.

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• Possible to have empty values with Html For Helpers such as Html.TextBoxFor()?

  - by chobo2

  Hi Is it possible to have to make a html for helper in asp.net mvc 2.0 have a default value of "empty string" Like if I do this Html.TextBoxFor( u => u.ProductName) would render to <input id ="ProductName" name="ProdcutName" type="text" value="Jim" /> Now I don't want the textbox to display jim. I want it to display nothing. <input id ="ProductName" name="ProdcutName" type="text" value="" /> I tried to do this Html.TextBoxFor( u => u.ProductName, new { @value = " "}) but that seems to do nothing. So how can I do this. I hope you can do something like this otherwise I think these new helpers have a great flaw since now I need to use like javascript to remove them since I hardly ever want a default value in the textbox especially when I have a label right beside the textbox saying what it is.

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• Convert String containing several numbers into integers

  - by GobiasKoffi

  I realize that this question may have been asked several times in the past, but I am going to continue regardless. I have a program that is going to get a string of numbers from keyboard input. The numbers will always be in the form "66 33 9" Essentially, every number is separated with a space, and the user input will always contain a different amount of numbers. I'm aware that using 'sscanf' would work if the amount of numbers in every user-entered string was constant, but this is not the case for me. Also, because I'm new to C++, I'd prefer dealing with 'string' variables rather than arrays of chars.

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• facebook meta tag description not updating

  - by wazzz

  3 days ago I updated description within the meta tag of facebook, but change does not reflect when sharing link on facebook. Instead old description still appears. According to Facebook, it scrapes your page every 24 hours to ensure the description (and other share data) are up to date. However, one can manually refresh it by entering the post URL into the Facebook URL Linter I did manually refresh it as well as now waited for 3 days. When i see debugging output from linter, it shows the correct up-to-date description, but old description still shown when sharing a link. How to reproduce: This is our website: https://www.tradeinsports.se/#tis1 (It's in swedish so bear with me please). If you go to above link and click on any of the two available products, and then share on facebook, you can see the difference in description from the one which appears in linter debugging output. Any help would be appreciated.

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• Archive tar files to a different location inperl

  - by user314261

  Hi, I am a newbee in Perl. I am reading a directory having some archive files and uncompressing the archive files one by one. Everything seems well however the files are getting uncompressed in the folder which has the main perl code module which is running the sub modules. I want the archive to be generated in the folder I specify. This is my code: sub ExtractFile { #Read the folder which was copied in the output path recursively and extract if any file is compressed my $dirpath = $_[0]; opendir(D, "$dirpath") || die "Can't open dir $dirpath: $!\n"; my @list = readdir(D); closedir(D); foreach my $f (@list) { print " \$f = $f"; if(-f $dirpath."/$f") { #print " File in directory $dirpath \n ";#is \$f = $f\n"; my($file_name, $file_dirname,$filetype)= fileparse($f,qr{\..*}); #print " \nThe file extension is $filetype"; #print " \nThe file name is is $file_name"; # If compressed file then extract the file if($filetype eq ".tar" or $filetype eq ".tzr.gz") { my $arch_file = $dirpath."/$f"; print "\n file to be extracted is $arch_file"; my $tar = Archive::Tar->new($arch_file); #$tar->extract() or die ("Cannot extract file $arch_file"); #mkdir($dirpath."/$file_name"); $tar->extract_file($arch_file,$dirpath."/$file_name" ) or die ("Cannot extract file $arch_file"); } } if(-d $dirpath."/$f") { if($f eq "." or $f eq "..") { next; } print " Directory\n";# is $f"; ExtractFile($dirpath."/$f"); } } } The method ExtractFile is called recursively to loop all the archives. When using $tar-extract() it uncompresses in the folder which calls this metohd. when I use $tar-extract_file($arch_file,$dirpath."/$file_name" ) I get an error : No such file in archive: '/home/fsang/dante/workspace/output/s.tar' at /home/fsang/dante/lib/Extraction.pm line 80 Please help I have checked that path and input output there is no issue with it. Seems some usage problem I am not aware of for $tar-extract_file(). Many thanks for anyone resolving this issue. Regards, Sakshi

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• how to request collection of fields in mvc

  - by frosty

  i have the following foreach. Inside you'll see a text box for quantity. At the bottom of the page there is submit button. What is the best practise for saving a collection of fields like this in asp.net MVC. ie how would i get the values in my controller <% foreach(var item in Model.Results) { %> <tr class="RowStyle"> <td><input name="quantity" value="<%= item.Quantity %>" class"input-30" /></td> </tr> <% } %>

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• Textarea without wysiwyg editor but have nice format

  - by dantan

  I have a texteare where someone can input text. I do not want a wysiwyg editor. But what would be great: Strip all tags, but make correct <p> and <br /> if user input has new lines. Additionally convert all urls, with or without http// or parameter to clickable links. I cannot find a solution. So you could type into the textarea: ........ This is a paragraph This ist still in the paragraph this is a new paragraph www.this-would-be-clickable new paragraphp `<strong>`this will be shown not bold`</strong>` ........ thankfull for every advice

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• AutoComplete field and IE

  - by user102533

  My web page does not have the autocomplete attribute that would tell browsers not to autocomplete the field. In spite of not having this attribute, IE 8 or Safari (not sure on other browsers) does not autocomplete the page. Autocomplete does work on some sites (such as Gmail) so I am assuming that the browser setting is not causing it? Here's the code: <tr> <td>User Id</td> <td><input name="userId" type="text" id="userId" runat="server" /></td> </tr> <tr> <td>Password</td> <td><input name="password" type="password" id="password" enableviewstate="false" runat="server" /></td> </tr>

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• uploading different types of files mostly pdfs

  - by Anders Kitson

  I would like to upload different types of files pressumably pdfs to a certain directory I am currently trying to get this one script working that I found on snipplr but it is not working as I assumed it would, here is my code. <?php if( isset($_POST['submit']) ) { $target_path = "../downloads/"; $target_path = $target_path . basename( $_FILES['uploadedfile']['name']); if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) { echo "The file ". basename( $_FILES['uploadedfile']['name'])." has been uploaded"; } else{ echo "There was an error uploading the file, please try again!"; } } ?> <form action="<?php echo $_SERVER['PHP_SELF'];?>" method="post" enctype="multipart/form-data"> <input type="file"> <input type="submit" name="submit" value="submit" /> </form>

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• how to read csv file in jquery using codeigniter framework

  - by webghost

  suppose this is my csv file fileempId,lastName,firstName,middleName,street1,street2,city,state,zip,gender,birthDate,ssn,empStatus,joinDate,workStation,location,custom1,workState,salary,payFrequency,FITWStatus,FITWExemptions,DD1Routing,DD1Account,DD1Amount,DD1AmountCode,DD1Checking,DD2Routing,DD2Account,DD2Amount,DD2AmountCode,DD2Checking 1,Dela Cruz,Juano,Santos,,,,,,1,,,Part Time Internship,, asd Division, Makati,one, asd,150,Bi Weekly,Not Applicable,100,,,,,,1234,9876,100,SAVINGS,BLANK 3,Palogan,Ralph,,,,,,,1,11-Mar-11,,Full Time Contract,2-Mar-11, sdf Department, pasay,, ,,,Not Applicable,,,,,,,,,,, 5,San,Goku,,,,hidden leaf,,,1,11-Mar-11,,,,,,,,,,Not Applicable,0,,,,,,,,,, this is my form <label>Choose File:</label><font color="#FF0000">*</font> <input type="file" name="file" id="file" /> <input type="button" id="importButton" value="Import" name="importButton" /> how to read the data in csv and store it to mysql database(codeigniter)? Any example code on how to do it,.

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• T4MVC and Ajax method with parameter

  - by Tom

  I am trying to apply T4MVC to my project. Say, I have an ajax search box, it calls Home/SearchQuery action which takes in a string q as parameter. How do I write that line in T4MVC? From Ajax.BeginForm("SearchQuery", "Home", .... To Ajax.BeginForm(MVC.Home.SearchQuery(???)... .cshtml file @using (Ajax.BeginForm("SearchQuery", "Home", /* <-----Convert to T4MVC Here */ new AjaxOptions { LoadingElementId = "loadingGif", OnSuccess = "parseResults", OnFailure = "searchFailed" })) { <input type="text" name="q" /> <input type="submit" value="Search" /> <img id="loadingGif" style="display:none" src="@Url.Content("~/content/images/loading.gif")" /> } <div id="searchResults" style="display: table"></div>

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• Form with target="_blank" will produce empty POST data in IE6

  - by Seeker

  I have an iframe containing a form. I want the form to point to a new window when the user submits it. Basically, the following code should do the trick: <?php var_dump($_POST); ?> <form method="post" action="test_post_to_blank.php" target="_blank"> <input type="text" name="test" value="test" /> <input type="submit" /> </form> The problem is that in IE6 a new window is opened with empty POST data. Is there any other way I can get the job done? This does not occur in newer versions of IE. Thanks in advance ;).

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• JavaScript - Multiple signals received after click

  - by Angelo A

  I'm creating a webapp using jQueryMobile. When I'm using the app and I click a button it runs the script multiple times. For example: I have a submit button: <input type="submit" id="login-normal" value="Login" /> And I have this JavaScript for debugging on which this error occurs: $("input#login-normal").live('click',function() { console.log("Test"); }); On the very first click it works (and it goes to another screen for example), but when I go back to that screen and I click again, it outputs multiple console.logs

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• Unexpected token from webservice

  - by Kenneth B

  I got this little snippet where I call a Battlefield 3 stat server. If you visit this URL, which I'm calling, we'll be getting no errors: http://api.bf3stats.com/pc/server/?output=json&id=534f7035-cef8-48aa-b233-8d44a0956e68 But when I try to get the stats via Ajax call, I get: Uncaught SyntaxError: Unexpected token : ... In my console I can see that the response is coming in, as when I visit the url, but I can't get the data with the ajax call... Is there something wrong with my code??? $.ajax({ type: "GET", url: "http://api.bf3stats.com/pc/server/?output=json&id=534f7035-cef8-48aa-b233-8d44a0956e68", dataType: "jsonp", success: function(response) { console.log(response); } }); Thank you in advance...

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• How can I rewrite Verilog code to remove extra reg?

  - by EquinoX

  How can I rewrite the code below so that I don't need to have an extra reg mul. I just wanted to take the 32 bits of the resulting 32 * 32 bit multiplication and put it into Result input signed[31:0] Reg1; input signed[31:0] Reg2; output[31:0] Result; reg signed[31:0] Result; reg[63:0] mul; mul = Reg1 * Reg2; Result = mul[31:0];

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• unable to set href inside click event of Jquery

  - by akshatrautela

  Hi I am trying to set href using Jquery inside click event of RadioButtonList but that doesnt work If I take the same code to document.ready event it works fine but not in click event. Please advice. $(document).ready(function() { url = "Results.aspx?latitude=" +latitude + "&Longitude=" + longitude; $("a[href='http://www.google.com/']").attr("href", url); // this works.. } $('.rbl input').click(function() { id = $(this).parent().children("input").val(); url = "Results.aspx?latitude=" + latitude + "&Longitude=" + longitude + "&ServiceCenterProductTypeId=" + id; //alert(url); $("a[href='http://www.google.com/']").attr("href", url); //this doesnt work.... }); });

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• Google App Engine says "Must authenticate first." while trying to deploy any app

  - by Oleksandr Bolotov

  Google App Engine says "Must authenticate first." while trying to deploy any app: me@myhost /opt/google_appengine $ python appcfg.py update ~/sda2/workspace/lyapapam/ Application: lyapapam; version: 1. Server: appengine.google.com. Scanning files on local disk. Scanned 500 files. Scanned 1000 files. Initiating update. Email: <my_email_was_here>@gmail.com Password for <my_email_was_here>@gmail.com: Error 401: --- begin server output --- Must authenticate first. --- end server output --- We are getting this message with any appliation and under any developer account avialable to us That's what we have installed: App Engine SDK - 1.3.2 PIL - 1.1.7 Python - 2.5.5 pip - 0.6.3 ssl - 1.15 wsgiref - 0.1.2 How can I fix it? Is it well known problem?

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• Difference of answers while using split function in Ruby

  - by N L

  Given the following inputs: line1 = "Hey | Hello | Good | Morning" line2 = "Hey , Hello , Good , Morning" file1=length1=name1=title1=nil Using ',' to split the string as follows: file1, length1, name1, title1 = line2.split(/,\s*/) I get the following output: puts file1,length1,name1,title1 >Hey >Hello >Good >Morning However, using '|' to split the string I receive a different output: file1, length1, name1, title1 = line2.split(/|\s*/) puts file1,length1,name1,title1 >H >e >y Both the strings are same except the separating symbol (a comma in first case and a pipe in second case). The format of the split function I am using is also the same except, of course, for the delimiting character. What causes this variation?

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• How to limit the number of post values on UpdatePanel ?

  - by Aristos

  I have notice that the UpdatePanel post every field included on the form on every trigger. But in most of my cases I use 2-3 UpdatePanels at the same page, and each one is independent. When I click for update the one panel, then my page receive all the input data of the page (ok this is logical) but I won to read only this UpdatePanels data and act according, and not the other panels data. So I see that a lot of traffic is happened this way. So is there a way to say to one UpdatePanel - send only my input data, and not everything found on the page. ? Thank you in advanced.

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• Cakephp: Extend search capability to hasMany Relationship

  - by Chris

  I have two models: Car hasMany Passengers Passenger belongsTo Car I want to implement a search using Cake Search. The user should input a number and the searchengine should return all cars that have less than this number passengers. In my search form: echo $form->input('passengers', array('label' => 'Passengers', 'div' => false)); In my Car model: public $filterArgs = array( array('name' => 'passengers', 'type' => 'int'), ); In the controller: public $presetVars = array( array('field' => 'passengers', 'type' => 'int') } I thought of adding a function to the model that returns the number of passengers: function countPassengers(){ return(count($this->Car->Passenger)); //Not sure if this works } And how to I implement this search criteria?: return all Cars where countPassengers()<passenger

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• How can i initialize an array without knowing it size?

  - by Sara

  I have a situation where i have to apply a criteria on an input array and reuturn another array as output which will have smaller size based upon the filtering criteria. Now problem is i do not know the size of filtered results, so i can not initialize the array with specific value. And i do not want it to be large size will null values because i am using array.length; later on. One way is to first loop the original input array and set a counter, and then make another loop with that counter length and initialize and fill this array[]. But is there anyway to do the job in just one loop?

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• control cmd.exe with c# (send and read outputs)

  - by oidfrosty

  I want to send and receive commands like "dir" and so on but i can't manage to read the output

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• Disabling a window after SendInput()

  - by DD

  From my application I want to do two 'very basic' actions: 1. send a bunch of input (movemouse on window 'W', click, movemouse back) using SendInput() 2. disable window 'W' either by setting its layered alpha property to zero or using EnableWindow(W, FALSE). No matter what the delay between 1 and 2 is, it doesn't work. If I don't ever disable the window, if I don't do step 2, then it works great all the time. I tried putting a Sleep(10000) and it still didn't work. Window gets disabled but it doesn't receive the input. What could I be missing here?

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• Maintain a variable value between program runs

  - by Akshay J

  I have a simple c# console application that is scheduled after every 5 mins. Every invocation of the program requires the output of the last run. What I am doing right now is using a text file and store the result in it. next time when it runs it opens the text file and know the output of the previous run. Is there any other way to do it that wont require any such text file ? Like maintaining a session variable etc ?

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• MVC 3 Nested EditorFor Templates

  - by Gordon Hickley

  I am working with MVC 3, Razor views and EditorFor templates. I have three simple nested models:- public class BillingMatrixViewModel { public ICollection<BillingRateRowViewModel> BillingRateRows { get; set; } public BillingMatrixViewModel() { BillingRateRows = new Collection<BillingRateRowViewModel>(); } } public class BillingRateRowViewModel { public ICollection<BillingRate> BillingRates { get; set; } public BillingRateRowViewModel() { BillingRates = new Collection<BillingRate>(); } } public class BillingRate { public int Id { get; set; } public int Rate { get; set; } } The BillingMatrixViewModel has a view:- @using System.Collections @using WIP_Data_Migration.Models.ViewModels @model WIP_Data_Migration.Models.ViewModels.BillingMatrixViewModel <table class="matrix" id="matrix"> <tbody> <tr> @Html.EditorFor(model => Model.BillingRateRows, "BillingRateRow") </tr> </tbody> </table> The BillingRateRow has an Editor Template called BillingRateRow:- @using System.Collections @model IEnumerable<WIP_Data_Migration.Models.ViewModels.BillingRateRowViewModel> @foreach (var item in Model) { <tr> <td> @item.BillingRates.First().LabourClass.Name </td> @Html.EditorFor(m => item.BillingRates) </tr> } The BillingRate has an Editor Template:- @model WIP_Data_Migration.Models.BillingRate <td> @Html.TextBoxFor(model => model.Rate, new {style = "width: 20px"}) </td> The markup produced for each input is:- <input name="BillingMatrix.BillingRateRows.item.BillingRates[0].Rate" id="BillingMatrix_BillingRateRows_item_BillingRates_0__Rate" style="width: 20px;" type="text" value="0"/> Notice the name and ID attributes the BillingRate indexes are handled nicely but the BillingRateRows has no index instead '.item.'. From my reasearch this is because the context has been pulled out due to the foreach loop, the loop shouldn't be necessary. I want to achieve:- <input name="BillingMatrix.BillingRateRows[0].BillingRates[0].Rate" id="BillingMatrix_BillingRateRows_0_BillingRates_0__Rate" style="width: 20px;" type="text" value="0"/> If I change the BillingRateRow View to:- @model WIP_Data_Migration.Models.ViewModels.BillingRateRowViewModel <tr> @Html.EditorFor(m => Model.BillingRates) </tr> It will throw an InvalidOperationException, 'model item passed into the dictionary is of type System.Collections.ObjectModel.Collection [BillingRateRowViewModel] but this dictionary required a type of BillingRateRowViewModel. Can anyone shed any light on this?

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