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  • JQuery multiple-choice quiz script: how to ensure the correct answer is available?

    - by DavidR
    I have a function. I pass to it an object with a list of questions and answers. I generate a random number from a range equal to the number of questions in the object. The script check to see if that question has been asked, and if not, it asks it, the correct answer is then passed to a variable correct. I want to give 4 possible answers, each one randomly selected from the list of possible answers. I have this. I just want to know what is the best way to ensure that the correct answer is placed in the list. So far, this is what I have: it puts four answers into four targeted boxes. I want to ensure that the correct answer is in a randomly selected box. function getRandom(limit) { return Math.floor(Math.random() * limit ) } $("#answers > .answer").each(function(i){ r = getRandom(total_questions); $(this).text(answers[r]) });

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  • How to detect tab key pressing in C#?

    - by user342325
    I want to detect when tab key is pressed in a textBox and focus the next textbox in the panel. I have tried out keyPressed method and keyDown method. But when I run the program and debug those methods are not calling when the tab key is pressed. Here is my code. private void textBoxName_KeyDown(object sender, KeyEventArgs e) { if (e.KeyCode == Keys.Tab) { textBoxUsername.Focus(); } } private void textBoxName_KeyPress(object sender, KeyPressEventArgs e) { if (e.KeyChar==(char)Keys.Tab) { textBoxUsername.Focus(); } } Please correct me.Thank you.

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  • How to fix this IndexOutOfBoundsException

    - by Rida
    My program runs fine, but there is a little problem. When I add new tracks previously existing file to the ListBox, the program experiences an error. The code seems unwilling to do looping in a new file which was added in a different time. Please help me. Thanks .... public partial class Form1 : Form { //... string[] files, paths; private void button1_Click(object sender, EventArgs e) { if (openFileDialog1.ShowDialog() == DialogResult.OK) { files = openFileDialog1.SafeFileNames; paths = openFileDialog1.FileNames; for (int i = 0; i < files.Length - 1; i++) { listBox1.Items.Add(files[i]); } } } private void listBox1_SelectedIndexChanged(object sender, EventArgs e) { axWindowsMediaPlayer1.URL = paths[listBox1.SelectedIndex]; } }

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  • Serialising and Deserialising Requests and Responses exactly as WCF does

    - by PeteAC
    I need to deserialise SOAP request XML to .Net request object and to serialise .Net response object to SOAP response XML. I need this to work exactly as WCF does, using the same XML element local names and namespace URIs. The .Net request and response classes were generated from WSDL using SVCUTIL. I have looked at XmlSerializer class, which does most of it, but doesn't take notice of certain WCF-specific custom attributes, like MessageBodyMemberAttribute. I also looked at DataContractSerializer, but that had exceedingly strange ideas about what element names and namespaces to use. Finally, I tried XmlSerializer with an XmlTypeMapping generated by a SoapReflectionImporter; this didn't seem to use any namespaces at all. I rather suspect that I need to be using one of the above techniques, but with some additional subtlety, of which I am unaware. But perhaps there is an entirely different approach? All suggestions welcome.

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  • How to open connection to local network path protected by password in smart way? (Whith C#)

    - by lfx
    Hi, I developing program witch have to write some data in file whom are stored in network computer witch are protected by password. Now I'm doing this way - open connection with cmd then write data. static bool ConnectToSrv() { String myUser = "domain.local\\user"; String myPass = "pwd"; String cmdString = "net use \\\\otherPC\\folder\\ /user:" + myUser + " " + myPass; try { ManagementClass processClass = new ManagementClass("Win32_Process"); object[] methodArgs = { cmdString, null, null, 0 }; object result = processClass.InvokeMethod("Create", methodArgs); return true; } catch (System.Exception error) { return false; } } public void writeDate(string data){ } I believe there must by better way. I mean the .NET way. Does anybody know how to do it? :) Thanks

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  • mail function in windows application

    - by Ranjana
    i have used a mail function. after inserting every record simultaneously from multiple PC. I have set a timer which ticks for every 2 min. while it ticks it start to check the record and it send the mail. i have used background worker for that.in Bgdworker the mail fn will be called. private void timer_Startsendingemail_Tick(object sender, EventArgs e) { if (!bgw_startsendingemail.IsBusy) bgw_startsendingemail.RunWorkerAsync(); } private void bgw_startsendingemail_DoWork(object sender, DoWorkEventArgs e) { sendingMail(); sendingsms(); } in sendingmail() fn the datas fetch from database and send the mail based on email settings to all the inserted rec. but the prob is the timer triggered for 2 min often , and the process will be working fine and nothing there in log file but sometime the mail is not received by the clients.how to fix the prob. how to find out where it is strucked... its hard to find the problem. any idea over this??????????/

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  • get all widgets inside an element

    - by peirix
    From the dojo documents on dijit.registry, I see the forEach method accepts a last parameter thisObject. But it doesn't way what that object is. Is it a dijit widget or a dojo object? I want to destroy all widgets inside an element (that will be replaced by AJAX) so they can be parsed again without conflicting id's. dijit.registry.forEach(function(w) { w.destroyRecursive(); }, dojo.byId("ajaxElement")); But this destroys ALL widgets on the page...

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  • Right design to validate attributes of a class instance

    - by systempuntoout
    Having a simple Python class like this: class Spam(object): __init__(self, description, value): self.description = description self.value = value Which is the correct approach to check these constraints: "description cannot be empty" "value must be greater than zero" Should i: 1.validate data before creating spam object ? 2.check data on __init__ method ? 3.create an is_valid method on Spam class and call it with spam.isValid() ? 4.create an is_valid static method on Spam class and call it with Spam.isValid(description, value) ? 5.check data on setters? 6.... Could you recommend a well designed\Pythonic\not verbose (on class with many attributes)\elegant approach?

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  • Using stored procedures to generate RDLC report in C#

    - by NDraskovic
    I'm making an application that generates reports for my client. I'm using his database that contains stored procedures which return the data needed for the reports. The problem is that I don't know how to execute them from the application (more specific the TableAdapter in my dataset). When I use the visual aid to create the TableAdapter, it shows the error "Invalid object named #table1". This is weird because there is a temporary table called #table1 in the stored procedure. When I try to do the whole job programmatically, I get the exception Incorrect syntax near '.'. An object or column name is missing or empty. For SELECT INTO statements, verify each column has a name. For other statements, look for empty alias names. Aliases defined as "" or [] are not allowed. Change the alias to a valid name. I created a DataTable that has identical structure as the result of the stored procedure, but I still get the same exception

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  • when get pagecontent from URL the connect alway return nopermistion ?

    - by tiendv
    I have a methor to return pagecontent of link but when it run, alway return "Do not perrmisson ", plesea check it here is code to return string pagecontent public static String getPageContent(String targetURL) throws Exception { Hashtable contentHash = new Hashtable(); URL url; URLConnection conn; // The data streams used to read from and write to the URL connection. DataOutputStream out; DataInputStream in; // String returned as the result . String returnString = ""; // Create the URL object and make a connection to it. url = new URL(targetURL); conn = url.openConnection(); // check out permission of acess URL if (conn.getPermission() != null) { returnString = "Do not Permission access URL "; } else { // Set connection parameters. We need to perform input and output, // so set both as true. conn.setDoInput(true); conn.setDoOutput(true); // Disable use of caches. conn.setUseCaches(false); // Set the content type we are POSTing. We impersonate it as // encoded form data conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); // get the output stream . out = new DataOutputStream(conn.getOutputStream()); String content = ""; // Create a single String value pairs for all the keys // in the Hashtable passed to us. Enumeration e = contentHash.keys(); boolean first = true; while (e.hasMoreElements()) { // For each key and value pair in the hashtable Object key = e.nextElement(); Object value = contentHash.get(key); // If this is not the first key-value pair in the hashtable, // concantenate an "&" sign to the constructed String if (!first) content += "&"; // append to a single string. Encode the value portion content += (String) key + "=" + URLEncoder.encode((String) value); first = false; } // Write out the bytes of the content string to the stream. out.writeBytes(content); out.flush(); out.close(); // check if can't read from URL // Read input from the input stream. in = new DataInputStream(conn.getInputStream()); String str; while (null != ((str = in.readLine()))) { returnString += str + "\n"; } in.close(); } // return the string that was read. return returnString; }

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  • Elegant way to reverse order Formtastic nested objects?

    - by stephan.com
    I'm presenting a list of items to the user with a field for a new item, like this: - current_user.tasks.build - semantic_form_for current_user do |f| - f.semantic_fields_for :tasks do |t| - t.inputs do = t.input :_destroy, :as => :boolean, :label => '' - if t.object.new_record? = t.input :name, :label => false - else = t.object.name Which looks lovely and works like a charm. My only problem is I want the new record at the TOP of the list, not the bottom. Is there an elegant and easy way to do this, or am I going to have to do the new element separately, or loop through the list manually?

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  • Get an Entity in Save Method, What is correct form ?

    - by Felipe
    Hi everybody I'm begginer in asp.net mvc and i have some doubts. P.S: I'm using DDD to learn I have an ACtion in a Controller and it'll save an entity (from my model) by a repository (for a database). My doubts is, How can I get the informations from the View and save it by a repository in my Controller ? Is it correct to get an entity of my Model in Save method of controller, like this: public ActionResult Save(Product product) { // validate object // save data in repository return View("Success"); } Or Need I get an DTO (with a structure similar to my entity) and create an object passing property by property to an entity ? I didnt' like of FormCollection and I'd like to know, What is recommended architecturally ? Thanks a lot guys Cheers

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  • flash.media.Sound.play takes long time to return

    - by Fire Lancer
    I'm trying to play some sounds in my flash project through action script. However for some reason in my code the call to Sound.play takes from 40ms to over 100ms in extreme cases, which is obviously more than enough to be very noticeable whenever a sound is played. This happens every time a sound is played, not just when that sound is first played, so I dont think its because the Sound object is still loading data or anything like that... At the start I have this to load the sound: class MyClass { [Embed(source='data/test_snd.mp3')] private var TestSound:Class; private var testSound:Sound;//flash.media.Sound public function MyClass() { testSound = new TestSound(); } Then im just using the play method of the sound object to play it later on. testSound.play();//seems to take a long time to return This as far as I can tell is following the same process as other Flash programs I found, however none of them seem to have this problem. Is there something that I've missed that would cause the play() method to be so slow?

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  • Parsing response from the WSDL

    - by htf
    Hello. I've generated the web service client in eclipse for the OpenCalais WSDL using the "develop" client type. Actually I was following this post so not really going in detail. Now when I get the results this way: new CalaisLocator().getcalaisSoap().enlighten(key, content, requestParams);, I get the String object, containing the response XML. Sure it's possible to parse that XML, but I think there must be some way to do it automatically, e.g. getting the response object in the form of some list whatsoever?

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  • Pushing app to heroku error

    - by Ryan Max
    Hello, I am getting the following error when I try to push my app to heroku. I saw a similar thread on here, but the issues seemed related to OSX. I am running windows 7 $ git push heroku master Counting objects: 1652, done. Delta compression using up to 4 threads. fatal: object 91f5d3ee9e2edcd42e961ed2eb254d5181cbc734 inconsistent object lengt h (476 vs 8985) error: pack-objects died with strange error error: failed to push some refs to '[email protected]:floating-stone-94.git I'm not sure what this means. I can't find any consistent answers on the internet. I tried re-creating my ssh public key but still the same.

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  • C# Type Casting at Runtimefor Array.SetValue

    - by sprocketonline
    I'm trying to create an array using reflection, and insert values into it. I'm trying to do this for many different types so would like a createAndFillArray function capable of this : Type t1 = typeof(A); Type t2 = typeof(B); double exampleA = 22.5; int exampleB = 43; Array arrA = createAndFillArray(t1, exampleA); Array arrB = createAndFillArray(t2, exampleB); private Array createAndFillArray(Type t, object val){ Array arr = Array.CreateInstance( t, 1); //length 1 in this example only, real-world is of variable length. arr.SetValue( val, 0 ); //this causes the following error: "System.InvalidCastException : Object cannot be stored in an array of this type." return arr; } with the class A being as follows: public class A{ public A(){} private double val; public double Value{ get{ return val; } set{ this.val = value; } } public static implicit operator A(double d){ A a = new A(); a.Value = d; return a; } } and class B being very similar, but with int: public class B{ public B(){} private double val; public double Value{ get{ return val; } set{ this.val = value; } } public static implicit operator B(double d){ B b = new B(); b.Value = d; return b; } } I hoped that the implicit operator would have ensured that the double be converted to class A, or the int to class B, and the error avoided; but this is obviously not so. The above is used in a custom deserialization class, which takes data from a custom data format and fills in the corresponding .Net object properties. I'm doing this via reflection and at runtime, so I think both are unavoidable. I'm targeting the C# 2.0 framework. I've dozens, if not hundreds, of classes similar to A and B, so would prefer to find a solution which improved on the createAndFillArray method rather than a solution which altered these classes.

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  • Pass property to access using .NET

    - by BitFiddler
    I'm fairly sure this is possible, but what I want to do is have a generic method where I can pass in an object along with a Expression that will tell the method which Property to use in it's logic. Can anyone get me started on the syntax for something like this? Essentially what I would like to code is something like: Dim firstNameMapper as IColumnMapper = new ColumnMapper(of Author)(Function(x) x.FirstName) Dim someAuthorObject as new Author() fistNameMapper.Map("Richard", someAuthorObject) Now the mapper object would know to set the FirstName property to "Richard". Now using a Function here won't work, I know this... I'm just trying to give an idea what I'm trying to work towards. Thanks for any help!

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  • I want to extract the video link out of youtube embed code, I am searching for a regex solution for

    - by Starx
    For example: an youtube embed code <object width="480" height="385"> <param name="movie" value="http://www.youtube.com/v/TFlzeO267qY&hl=en_US&fs=1&"></param> <param name="allowFullScreen" value="true"></param> <param name="allowscriptaccess" value="always"></param> <embed src="http://www.youtube.com/v/TFlzeO267qY&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed> </object> I want to extract http://www.youtube.com/v/TFlzeO267qY&hl=en_US&fs=1&" from this embed code but I dont know how to create a regex expression for this Thanks in Advance?

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  • ASP.NET Drop Down list , the button function not firing after the first click

    - by Pinu
    ASP.Net Dropdownlist , on changing the value of drop down list and clicking the button it is not sending an upadted value to the New.aspx <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Test_DropDown.aspx.cs" Inherits="Test_DropDown" % <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>Untitled Page</title> </head> <body> <form id="form1" runat="server"> <div> <asp:DropDownList ID="ddl_test" runat="server" OnSelectedIndexChanged="ddl_test_SelectedIndexChanged" AutoPostBack="true"> <asp:ListItem>First Item</asp:ListItem> <asp:ListItem>Second Item</asp:ListItem> <asp:ListItem>Third Item</asp:ListItem> </asp:DropDownList> <asp:HiddenField ID="hdf_ddl" runat="server" /> <asp:Button ID="btn_test" runat="server" Text="Button" OnClick="Button1_Click" /> </div> </form> </body> </html> using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; public partial class Test_DropDown : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void Button1_Click(object sender, EventArgs e) { string passValue = ddl_test.SelectedValue.ToString(); string val = hdf_ddl.Value.ToString(); btn_test.Attributes.Add("onclick", "window.open('New.aspx?ddlValue=" + val + "', 'OpenPopWindow','left=250,top=100,width=500,height=500,toolbar=1,resizable=0,status=0,menubar=0,scrollbars=1');return false;"); //btn_test.OnClientClick = "window.open('New.aspx?ddlValue=" + val + "', 'OpenPopWindow','left=250,top=100,width=500,height=500,toolbar=1,resizable=0,status=0,menubar=0,scrollbars=1');return false;"; } protected void ddl_test_SelectedIndexChanged(object sender, EventArgs e) { hdf_ddl.Value = ddl_test.SelectedValue.ToString(); } }

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  • Class Property in for each

    - by KoolKabin
    Hi guys, I am running from a problem while iterating over class properties. I have my first class: class Item private _UIN as integer = 0 private _Name as string = "" private _Category as ItemCategory = new ItemCategory() public Property UIN() as integer public property Name() as string public property Category() as ItemCategory end class Now when i iterate over the class properties from following code Dim AllProps As System.Reflection.PropertyInfo() Dim PropA As System.Reflection.PropertyInfo dim ObjA as object AllProps = new Item().getType().getProperties() for each propA in AllProps ObjA = PropA.GetValue(myObj, New Object() {}) debug.write ObjA.GetType().Name next I get UIN, Name, ItemCategory but i expected UIN, Name and Category. I am a bit unclear about this and dun know why this is happening? What should i do to correct it?

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  • Entity Framework projections

    - by David McClelland
    We are investigating the Entity Framework to see if it will meet our particular needs. Here is the scenario I am interested in: I have a large table (let's call it VeryWideRecord) which has many columns, and it has a corresponding business object (it's also called VeryWideRecord). I would like to be able to query my database for a VeryWideRecord business object, but only have values for certain columns returned by the underlying SQL. Can I do this with the Entity Framework? I am uncertain as to whether this could be done with the Entity Framework's table splitting feature, because the application needs to be able (at runtime) to change the columns that are requested. The reason for this is that we are trying to minimize the amount of information that is going across the wire. I see how this could be done using NHibernate (example), but how can I do this with the Entity Framework?

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  • Boost::asio bug in MSVC10 - Failing BOOST_WORKAROUND in ~buffer_debug_check() in buffer.hpp

    - by shaz
    A straight compilation of example http://www.boost.org/doc/libs/1_43_0/doc/html/boost_asio/tutorial/tutdaytime3/src.html results in a runtime null pointer exception. Stack trace points to the buffer_debug_check destructor which contains this comment: // MSVC's string iterator checking may crash in a std::string::iterator // object's destructor when the iterator points to an already-destroyed // std::string object, unless the iterator is cleared first. The test #if BOOST_WORKAROUND(BOOST_MSVC, = 1400) succeeds in MSVC10 and (but) results in a null pointer exception in c:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xutility line 123 _Iterator_base12& operator=(const _Iterator_base12& _Right) { // assign an iterator if (_Myproxy != _Right._Myproxy) _Adopt(_Right._Myproxy->_Mycont); return (*this); } _Right._Myproxy is NULL

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  • Forced naming of parameters in python

    - by Mark Mayo
    In python you may have a function definition: def info(object, spacing=10, collapse=1) which could be called in any of the following ways: info(odbchelper) info(odbchelper, 12) info(odbchelper, collapse=0) info(spacing=15, object=odbchelper) thanks to python's allowing of any-order arguments, so long as they're named. The problem we're having is as some of our larger functions grow, people might be adding parameters between spacing and collapse, meaning that the wrong values may be going to parameters that aren't named. In addition sometimes it's not always clear as to what needs to go in. We're after a way to force people to name certain parameters - not just a coding standard, but ideally a flag or pydev plugin? so that in the above 4 examples, only the last would pass the check as all the parameters are named. Odds are we'll only turn it on for certain functions, but any suggestions as to how to implement this - or if it's even possible would be appreciated.

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  • JSON from jQuery to PHP

    - by enfix
    I need to pass a JSON object from $.post() jQuery function to PHP page. I tried this plugin jquery-json, but don't work: //include jquery.js and jquery.json.js $(document).ready(function(){ var data = new Object(); data.hello = "Hello"; data.world = "World"; var datajson = $.toJSON(data); $.post('file.php', {data: datajson}, function(res){ alert(res); }); }); And file.php has this simple line: <? var_dump(son_decode($_REQUEST['data'], true)); ?> What's the problem ?

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