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  • some verd problems in qt

    - by prabhakaran
    I am very new to qt, So whatever I facing is either errors or problems. Here goes some of them, 1)Just try to install it in VisualStudio, you will got enough for the day. 2)After you installed it as a separate qt(without embedding it inside visual studio).Open a c++ file in qt, = then you won't get any option to compile it. 3)Create a empty qt4 project like below #include<iostream> using namespace std; int main(int a,char * argv[]) { } Then build it, you will get a error like this C:\qt-greenhouse\Trolltech\Code_less_create_more\Trolltech\Code_less_create_more\Troll\4.6\qt\src\winmain/qtmain_win.cpp:131: undefined reference to `qMain(int, char**)' Can anybody clear any of these problems to me.

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  • Idatareaders not returning values from database

    - by Phil
    In my codebehind I have this vb: Dim reader as idatareader = includes.SelectDepartmentID(PageID) While reader.Read Did = reader("departmentid") GroupingHeading = reader("heading") Folder = reader("folder") If reader("OwnBanner") Is DBNull.Value Then OwnBanner = String.Empty Else OwnBanner = reader("ownbanner") End If Then in my class I have: Public Function SelectDepartmentID(ByVal PageID As Integer) As IDataReader Dim Command As SqlCommand = db.GetSqlStringCommand("sql") db.AddInParameter(Command, "@pageid", Data.DbType.Int32, PageID) Dim reader As IDataReader = db.ExecuteReader(Command) reader.Read() Return reader End Function No Errors are being presented yet nothing is being returned by the reader. Is there an error in my code? Thanks.

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  • How can I safely decide if a variable is a string of more than one characters?

    - by Alan
    I am using the following Javascript: if (typeof content !== 'undefined' && content.length > 0) { $state.transitionTo('admin.content', { content: content }) } I thought this was safe to use but it gives me an error saying: TypeError: Cannot read property 'length' of null I am using the following function to decide if something is a number: isNumber: function (num) { // Return false if num is null or an empty string if (num === null || (typeof num === "string" && num.length === 0)) { return false; } var rtn = !isNaN(num) return rtn; }, How can I write a similar function that would very safely determine if something is a string with a length of more than 0?

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  • Javascript push Object to cookies using JSON

    - by Hunkeone
    Hi All on click button I need to add object to array and then write array to cookies. From the start this array can be not empty so I parse cookie first. function addToBasket(){ var basket = $.parseJSON($.cookie("basket")) if (basket.length==0||!basket){ var basket=[]; basket.push( { 'number' : this.getAttribute('number'), 'type' : this.getAttribute('product') } ); } else{ basket.push( { 'number' : this.getAttribute('number'), 'type' : this.getAttribute('product') } ); } $.cookie("basket", JSON.stringify(basket)); } And HTML <button type="button" class="btn btn-success btn-lg" number="12" product="accs" onclick="addToBasket()">Add</button> Unfortunately I'm getting Uncaught ReferenceError: addToBasket is not defined onclick. Can't understand what am I doing wrong? Thanks!

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  • ActiveX doesn't show up in Browser

    - by Boller
    Hi, i'm trying to put an activeX object on an asp-webpage. it already worked good a week ago, but now the object isn't showing up anymore. already made a little asp testing-project....just an asp-page and a activex control, containing a button and a label. but when i call up the page in the browser, there is only a white area with a little icon in the upper left corner, showing a red dot, a green triangle and a blue rectangle.... what does that mean? object not found? object blocked by IE? or what exactly does this icon stand for? i always thoght that an missing object is represented by an empty area with a little red cross in it. =/

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  • Why does Python's __import__ require fromlist?

    - by ieure
    In Python, if you want to programmatically import a module, you can do: module = __import__('module_name') If you want to import a submodule, you would think it would be a simple matter of: module = __import__('module_name.submodule') Of course, this doesn't work; you just get module_name again. You have to do: module = __import__('module_name.submodule', fromlist=['blah']) Why? The actual value of fromlist don't seem to matter at all, as long as it's non-empty. What is the point of requiring an argument, then ignoring its values? Most stuff in Python seems to be done for good reason, but for the life of me, I can't come up with any reasonable explanation for this behavior to exist.

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  • How to search on a array and display the items on tableview using a searchbar?

    - by skiria
    Hi, I would like to search on a arrays hierachy and display the results on a tableview. The tableview is empty when we run the app and the, when we search it, the data is written. What's the best way to do this? I read tutorials wich explains how it search on a tableview, but i want to search in all of arrays hierachy. I have 3 classes class video //iVars to allocate the video metadata NSInteger videoID; NSString *nameVideo; NSString *nameCategory; NSString *nameTopic; NSString *user; NSString *date; NSString *description; NSString *urlThumbnail; NSString *urlVideo; class Topic NSInteger TopicId; NSString nameTopic; NSMutableArray videos; class Category NSInteger CategoryId; NSString nameCategory NSMutableArray topics AppDelegate NSMutableArray categories

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  • Referenced vector does not pass through functions

    - by kylepayne
    The referenced vector to functions does not hold the information in memory. Do I have to use pointers? Thanks. #include <iostream> #include <cstdlib> #include <vector> #include <string> using namespace std; void menu(); void addvector(vector<string>& vec); void subvector(vector<string>& vec); void vectorsize(const vector<string>& vec); void printvec(const vector<string>& vec); void printvec_bw(const vector<string>& vec); int main() { vector<string> svector; menu(); return 0; } //functions definitions void menu() { vector<string> svector; int choice = 0; cout << "Thanks for using this program! \n" << "Enter 1 to add a string to the vector \n" << "Enter 2 to remove the last string from the vector \n" << "Enter 3 to print the vector size \n" << "Enter 4 to print the contents of the vector \n" << "Enter 5 ----------------------------------- backwards \n" << "Enter 6 to end the program \n"; cin >> choice; switch(choice) { case 1: addvector(svector); menu(); break; case 2: subvector(svector); menu(); break; case 3: vectorsize(svector); menu(); break; case 4: printvec(svector); menu(); break; case 5: printvec_bw(svector); menu(); break; case 6: exit(1); default: cout << "not a valid choice \n"; // menu is structured so that all other functions are called from it. } } void addvector(vector<string>& vec) { //string line; //int i = 0; //cin.ignore(1, '\n'); //cout << "Enter the string please \n"; //getline(cin, line); vec.push_back("the police man's beard is half-constructed"); } void subvector(vector<string>& vec) { vec.pop_back(); return; } void vectorsize(const vector<string>& vec) { if (vec.empty()) { cout << "vector is empty"; } else { cout << vec.size() << endl; } return; } void printvec(const vector<string>& vec) { for(int i = 0; i < vec.size(); i++) { cout << vec[i] << endl; } return; } void printvec_bw(const vector<string>& vec) { for(int i = vec.size(); i > 0; i--) { cout << vec[i] << endl; } return; }

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  • Have I checked every consecutive subset of this list?

    - by Nathan
    I'm trying to solve problem 50 on Project Euler. Don't give me the answer or solve it for me, just try to answer this specific question. The goal is to find the longest sum of consecutive primes that adds to a prime below one million. I use wrote a sieve to find all the primes below n, and I have confirmed that it is correct. Next, I am going to check the sum of each subset of consecutive primes using the following method: I have a empty list sums. For each prime number, I add it to each element in sums and check the new sum, then I append the prime to sums. Here it is in python primes = allPrimesBelow(1000000) sums = [] for p in primes: for i in range(len(sums)): sums[i] += p check(sums[i]) sums.append(p) I want to know if I have called check() for every sum of two or more consecutive primes below one million The problem says that there is a prime, 953, that can be written as the sum of 21 consecutive primes, but I am not finding it.

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  • XdmException on XQSharp XPathEvaluate

    - by Florian
    I am trying to evaluate a XPathExpression with XQSharp and get the Error:"Type check error. The empty sequence cannot be cast to type 'xs:integer'." AltovaXMLSpy evaluates it correct as "true". oXmlDoc.CreateNavigator().XPathEvaluate("root/foo/bar cast as xs:integer lt count(root/blah/blub)", oNamespaseManager).ToString() This XML looks like this: <root xmlns:xs="http://www.w3.org/2001/XMLSchema"> <foo> <bar>0</bar> </foo> <blah> <blub/> </blah> </root> What am I missing?

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  • Expiring an IE session using WatiN

    - by Steve Wilkes
    I'm trying to write an acceptance test using WatiN which checks that a user is redirected to the login page if they navigate to a page after their session times out. I'm using WatiN's IE class for the browser, and trying the following: // 1. Login // 2. Do this: Browser.ClearCookies(); Browser.ClearCache(); // 3. Navigate to a different page But the user is always still logged in. Other info: I'm running the test through the NUnit GUI running as an administrator It's an ASP.NET MVC 3 site, using forms authentication and in-process session state I'm using IE9. If I manually clear all cookies in Chrome, the user is logged out If I manually clear all cookies in IE the user stays logged in If I call Browser.Eval("alert(document.cookie)"); in IE it alerts an empty string Given the above, I'm assuming this is a quirk with IE; any ideas how I can work around it?

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  • jQuery after onclick

    - by Ivan90
    Hi guys, I've a form with different field, a validation summary and a button Sign up! When I click on Sign up, if a field is empty, it active validation summary and until here there's no problem. So the problem is that I would want active a jQuery script after it was clicked Sign up button and it appeared validation summary. I try with $(this).load(function() but in effect it occur when the page is load and not after the button is clicked. I try also use button's onclick ,but I have to use script after onclick and not while. I used Validation group for all field of form, also button and for this reason it seems doesn't postback!

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  • Starting out with vote_fu

    - by zizee
    Hi All, Trying my luck with the vote_fu rails plugin. The functionality looks like exactly what I need for a project of mine, but I have hit a roadblock. I have followed the github readme to the letter, installing it as a plugin. I have put acts_as_voteable on my "Event" model and acts_as_voter on my User model. In the console, when I try: >> event.votes or >> user.votes it successfully returns an empty array. but when I try to do the following: user.vote_for(event) I get "NoMethodError: undefined method `user_id' for #<Vote:0x7f5ed4355540>" Any ideas? I'm probably just missing something obvious, but maybe something is missing from the plugin's readme. Thanks.

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  • HOw Do I update from table-2 to table-1

    - by mathew
    HI what is the wrong in this code?? i have set it 24 hours to update the value in the table.but the problem is if $row is empty then it inserts value from table-2 but after 24 hours it wont update the value. what I want is it must delete the existing value and insert new one(random value) or it must update the same $row with new value what ever... if ($row == 0){ mysql_query("INSERT INTO table-1 (regtime,person,location,address,rank,ip,geocode) SELECT NOW(),person,location,address,rank,ip,geocode FROM table-2 ORDER BY RAND() LIMIT 1");}else{ mysql_query("UPDATE table-1 SELECT regtime=NOW(), person=person, location=location, address=address, rank=rank, ip=ip, geocode=geocode FROM table-2 ORDER BY RAND() LIMIT 1");}

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  • debugfs_create_file doesn't create file

    - by bala1486
    Hello, I am trying to create a debugfs file using the debugfs_create_file(...). I have written a sample code for this. static int __init mmapexample_module_init(void) { file1 = debugfs_create_file("mmap_example", 0644, NULL, NULL, &my_fops)\ ; printk(KERN_ALERT "Hello, World\n"); if(file1==NULL) { printk(KERN_ALERT "Error occured\n"); } if(file1==-ENODEV) { printk(KERN_ALERT "ENODEV occured\n"); } return 0; } When i ran insmod i could get the Hello, World message but no the error message. So i think the debugfs_create_file worked fine. However i couldn't find any file in /sys/kernel/debug. The folder is there but it is empty. Can anyone help me with this? Thank you... Thanks, Bala

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  • mysqli query not working when variable inserted

    - by Freelancer
    Hi Everyone, I need an extra pair of eyes! I have a super-simple query: $result = $mysqli->query("SELECT post_id FROM blog_posts WHERE post_uri = 'the-test-post' LIMIT 1"); $row = $result->fetch_array(); and this gives me the post_id. However, if I insert a variable for post_uri, the result is empty. Ways I tried of which none worked: $result = $mysqli->query("SELECT post_id FROM blog_posts WHERE post_uri = '".$post_uri."' LIMIT 1"); $result = $mysqli->query("SELECT post_id FROM blog_posts WHERE post_uri = ".$post_uri." LIMIT 1"); $result = $mysqli->query("SELECT post_id FROM blog_posts WHERE post_uri = $post_uri LIMIT 1"); I have similar query on another page working just right, so that confuses me even more. Help appreciated.

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  • Commit SVN working copy into Git repository

    - by mchr
    I am currently working on a checked out SVN project along with some plugins for that project. I want to keep all of this work - including the current version of my SVN checkout within a single git repository. I thought I had achieved this by checking in the SVN working copy to git. However, when I did a pull on a new computer the SVN working copy had been corrupted. In particular it seemed that git had not checked it any of the .svn/tmp/ and .svn/props/ folders. I have now made a fresh checkout of the SVN project. Is there a way for me to add the ignored folders to my git repo (git status ignores them even though my .gitignore is empty) or force SVN to regenerate them?

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  • Chess board position numbers in 6-rooted-binary tree?

    - by HH
    The maximum number of adjacent vertices is 6 that corresponds to the number of roots. By the term root, I mean the number of children for each node. If adjacent square is empty, fill it with Z-node. So every square will have 6 nodes. How can you formulate it with binary tree? Is the structure just 6-rooted-binary tree? What is the structure called if nodes change their positions? Suppose partially ordered list where its units store a large randomly expanding board. I want a self-adjusting data structure, where it is easy to calculate distances between nodes. What is its name?

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  • jquery not printing the image in IE 6

    - by pradeep
    if(count > 0){ for(var i= parseInt(start); i < parseInt(count); i++) { link ='<a href="/diabetes/ropimages/origpicdisplay.php?pid='+pid+'&rid='+i+'" target="_blank"><img src="/diabetes/ropimages/thumbpicdisplay.php?pid='+pid+'&rid='+i+'"/><a>&nbsp;&nbsp;'; if(i > start){ $("#content1").append(link);} else{ $("#content1").empty().html(link);} } } i use code like this. it does print images in FF but not in IE6 any solutions for this ?

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  • How to determine where a Mailitem is being opened from in Outlook 2007 using VSTO 2005 SE

    - by Adam
    I have an Outlook 2007 Add-in in VSTO 2005 SE that allows users to save e-mails into our document management system. From within our system users are able to open e-mails they have previously saved. However, when doing so I need to try and prevent them from saving them again. I am trying to figure out how to determine if the Mailitem being opened is coming from the Outlook e-mail client or from an external source. I know that normally the EntryId Property of the Mailitem is null or empty string when a Mailitem has not been previously saved in Outlook, however, it seems like when a Mailitem is being opened from within our system the EntryID is not null.

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  • clear input textbox value on load

    - by user544079
    I have the following form which is getting pre populated with values on load. I want to have empty input boxes on load using Javascript. However I do not have access to the <body> tag so <body onload="" will not work here. Is there any other way to clear the form fields on load? <form method="POST" action=""> <input name="username" id="user" value="" /><br /> <input name="pwd" id="pass" value="" /> <input type="submit" value="Go" /> </form>

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  • Rails - Posting a Boolean (true or False) and updating the DB in the controller

    - by AnApprentice
    Hello, in my Rails 3 App, I'm posting with jQuery the following: http://0.0.0.0:3000/topics/read_updater?&topic_id=101&read=true In my controller: def read_updater current_user.topics.where(:topic_id => params[:topic_id]).update_all(:read => params[:read]) render :json => {:status => 'success' } end params[:conversation_id] works great, but params[:read] is inserting empty values in the DB, even though jQuery is posting either a true or false. Ideas? I want rails to update the DB with either true or false. Thanks

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  • ASP.NET MVC - How do I implement validation when using Data Repositories? (Visual Basic)

    - by rockinthesixstring
    I've built a UserRepository interface to communicate with my LINQ to SQL Data layer, but I'm trying to figure out how to implement validation. Here is what my AddUser subroutine looks like Public Sub AddUser(ByVal about As String, ByVal birthdate As DateTime, ByVal openid As String, ByVal regionid As Integer, ByVal website As String) Implements IUserRepository.AddUser Dim user = New User user.About = about user.BirthDate = birthdate user.LastSeen = DateTime.Now user.MemberSince = DateTime.Now user.OpenID = openid user.RegionID = regionid user.UserName = String.Empty user.WebSite = website dc.Users.InsertOnSubmit(user) dc.SubmitChanges() End Sub And then my controller will simply call AddUser(...) But I haven't the foggiest idea on how to implement both client side and server side validation on this. (I think I would prefer to use jQuery AJAX and do all of the validation on the server, but I'm totally open to opinions)

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  • How to refactor this Ruby on Rails code?

    - by yuval
    I want to fetch posts based on their status, so I have this code inside my PostsController index action. It seems to be cluttering the index action, though, and I'm not sure it belongs here. How could I make it more concise and where would I move it in my application so it doesn't clutter up my index action (if that is the correct thing to do)? if params[:status].empty? status = 'active' else status = ['active', 'deleted', 'commented'].include?(params[:status]) ? params[:status] : 'active' end case status when 'active' #active posts are not marked as deleted and have no comments is_deleted = false comments_count_sign = "=" when 'deleted' #deleted posts are marked as deleted and have no comments is_deleted = true comments_count_sign = "=" when 'commented' #commented posts are not marked as deleted and do have comments is_deleted = false comments_count_sign = ">" end @posts = Post.find(:all, :conditions => ["is_deleted = ? and comments_count_sign #{comments_count_sign} 0", is_deleted])

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  • Validating a text box value using javascript

    - by swathi
    Hi all, I have a textbox.The user will be entering entering a number in this box.The user should enter two digits followed by a period "." and another digit.It would look something like 22.3 or 00.5 or 01.2. If the textbox is not empty,I want to enforce a function which validates the value entered by the user(and gives them an alert if the value entered is not according to the format mentioned above) .This function needs to be triggered when the textbox loses its focus.I am not sure how to go ahead in writing this function as i am still new to this. Any help would be appreciated.Thanks in advance. p.s This function should be triggered each time there is a change in the value.Like suppose, the user enters a value 22, then when the textbox loses its focus,the javascript function should be triggered giving them an alert asking the user to change it to the accepted format which is 22.0.The function should be triggered again when the textbox loses its focus(after the change has been done).This time there would not be an alert since the user entered it in the right format.

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