Search Results

Search found 47799 results on 1912 pages for 'class attributes'.

Page 709/1912 | < Previous Page | 705 706 707 708 709 710 711 712 713 714 715 716  | Next Page >

  • Using TaskDialogIndirect in C#

    - by Dennis Delimarsky
    I've been working for a while with the regular Windows Vista/7 TaskDialog for a while, and I wanted to add some additional functionality (like custom buttons and a footer), so I need to use TaskDialogIndirect. Following the MSDN documentation for TaskDialogIndirect, I got this signature: [DllImport("comctl32.dll",CharSet = CharSet.Unicode,EntryPoint="TaskDialogIndirect")] static extern int TaskDialogIndirect (TASKDIALOGCONFIG pTaskConfig, out int pnButton, out int pnRadioButton, out bool pfVerificationFlagChecked); The TASKDIALOGCONFIG class is shown below: public class TASKDIALOGCONFIG { public UInt16 cbSize; public IntPtr hwndParent; public IntPtr hInstance; public String dwFlags; public String dwCommonButtons; public IntPtr hMainIcon; public String pszMainIcon; public String pszMainInstruction; public String pszContent; public UInt16 cButtons; public TASKDIALOG_BUTTON pButtons; public int nDefaultButton; public UInt16 cRadioButtons; public TASKDIALOG_BUTTON pRadioButtons; public int nDefaultRadioButton; public String pszVerificationText; public String pszExpandedInformation; public String pszExpandedControlText; public String pszCollapsedControlText; public IntPtr hFooterIcon; public IntPtr pszFooterText; public String pszFooter; // pfCallback; // lpCallbackData; public UInt16 cxWidth; } The TASKDIALOG_BUTTON implementation: public class TASKDIALOG_BUTTON { public int nButtonID; public String pszButtonText; } I am not entirely sure if I am on the right track here. Did anyone use TaskDialogIndirect from managed code directly through WinAPI (without VistaBridge or Windows API Code Pack)? I am curious about the possible implementations, as well as the callback declarations (I am not entirely sure how to implement TaskDialogCallbackProc). PS: I am looking for a direct WinAPI implementation, not one through a wrapper.

    Read the article

  • How to avoid using this in a constructor

    - by Paralife
    I have this situation: interface MessageListener { void onMessageReceipt(Message message); } class MessageReceiver { MessageListener listener; public MessageReceiver(MessageListener listener, other arguments...) { this.listener = listener; } loop() { Message message = nextMessage(); listener.onMessageReceipt(message); } } and I want to avoid the following pattern: (Using the this in the Client constructor) class Client implements MessageListener { MessageReceiver receiver; MessageSender sender; public Client(...) { receiver = new MessageReceiver(this, other arguments...); sender = new Sender(...); } . . . @Override public void onMessageReceipt(Message message) { if(Message.isGood()) sender.send("Congrtulations"); else sender.send("Boooooooo"); } } The reason why i need the above functionality is because i want to call the sender inside the onMessageReceipt() function, for example to send a reply. But I dont want to pass the sender into a listener, so the only way I can think of is containing the sender in a class that implements the listener, hence the above resulting Client implementation. Is there a way to achive this without the use of 'this' in the constructor? It feels bizare and i dont like it, since i am passing myself to an object(MessageReceiver) before I am fully constructed. On the other hand, the MessageReceiver is not passed from outside, it is constructed inside, but does this 'purifies' the bizarre pattern? I am seeking for an alternative or an assurance of some kind that this is safe, or situations on which it might backfire on me.

    Read the article

  • SpringMvc Annotations for DAO interface and DAO implementation

    - by dev_darin
    I would like to know if I am annotating these classes correctly, since I am new to the annotations: Country.java @Component public class Country { private int countryId; private String countryName; private String countryCode; /** * No args constructor */ public Country() { } /** * @param countryId * @param countryName * @param countryCode */ public Country(int countryId, String countryName, String countryCode) { this.countryId = countryId; this.countryName = countryName; this.countryCode = countryCode; } //getters and setters } CountryDAO.java @Repository public interface CountryDAO { public List<Country> getCountryList(); public void saveCountry(Country country); public void updateCountry(Country country); } JdbcCountryDAO.java @Component public class JdbcCountryDAO extends JdbcDaoSupport implements CountryDAO{ private final Logger logger = Logger.getLogger(getClass()); @Autowired public List<Country> getCountryList() { int countryId = 6; String countryCode = "AI"; logger.debug("In getCountryList()"); String sql = "SELECT * FROM TBLCOUNTRY WHERE countryId = ? AND countryCode = ?"; logger.debug("Executing getCountryList String "+sql); Object[] parameters = new Object[] {countryId, countryCode}; logger.info(sql); //List<Country> countryList = getJdbcTemplate().query(sql,new CountryMapper()); List<Country> countryList = getJdbcTemplate().query(sql, parameters,new CountryMapper()); return countryList; } CountryManagerIFace.java @Repository public interface CountryManagerIFace extends Serializable{ public void saveCountry(Country country); public List<Country> getCountries(); } CountryManager.java @Component public class CountryManager implements CountryManagerIFace{ @Autowired private CountryDAO countryDao; public void saveCountry(Country country) { countryDao.saveCountry(country); } public List<Country> getCountries() { return countryDao.getCountryList(); } public void setCountryDao(CountryDAO countryDao){ this.countryDao = countryDao; } }

    Read the article

  • javascript to reference input IDs in php loop and pass values back to same input ID

    - by Smudger
    I have a form which is essentially an autocomplete input box. I can get this to work perfectly for a single text box. What I need to do is create unique input boxes by using a php for loop. This will use the counter $i to give each input box a unique name and id. The problem is that the unique value of the input box needs to be passed to the javascript. this will then pass the inputted data to the external php page and return the mysql results. As mentioned I have this working for a single input box but need assistance with passing the correct values to the javascript and returning it to correct input box. existing code for working solution (first row works only, all other rows update first row input box) <html> <head> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript"> function lookup(inputString) { if(inputString.length == 0) { // Hide the suggestion box. $('#suggestions').hide(); } else { $.post("autocompleteperson.php", {queryString: ""+inputString+""}, function(data){ if(data.length >0) { $('#suggestions').show(); $('#autoSuggestionsList').html(data); } }); } } // lookup function fill(thisValue) { $('#inputString').val(thisValue); setTimeout("$('#suggestions').hide();", 200); } </script> </head> <body> <form name="form1" id="form1" action="addepartment.php" method="post"> <table> <? for ( $i = 1; $i <=10; $i++ ) { ?> <tr> <td> <? echo $i; ?></td> <td> <div> <input type="text" size="30" value="" id="inputString" onkeyup="lookup(this.value);" onblur="fill();" /> </div> <div class="suggestionsBox" id="suggestions" style="display: none;"> <img src="upArrow.png" style="position: relative; top: -12px; left: 20px;" alt="upArrow" /> <div class="suggestionList" id="autoSuggestionsList"> &nbsp; </div> </div> </td> </tr> <? } ?> </table> </body> </html> code for autocompleteperson.php is: $query = $db->query("SELECT fullname FROM Persons WHERE fullname LIKE '$queryString%' LIMIT 10"); if($query) { while ($result = $query ->fetch_object()) { echo '<li onClick="fill(\''.$result->fullname.'\');">'.$result->fullname.'</li>'; } } in order to get it to work for all rows, I include the counter $i in each of the file names as below: <html> <head> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript"> function lookup(inputString<? echo $i; ?>) { if(inputString<? echo $i; ?>.length == 0) { // Hide the suggestion box. $('#suggestions<? echo $i; ?>').hide(); } else { $.post("autocompleteperson.php", {queryString: ""+inputString<? echo $i; ?>+""}, function(data){ if(data.length >0) { $('#suggestions<? echo $i; ?>').show(); $('#autoSuggestionsList<? echo $i; ?>').html(data); } }); } } // lookup function fill(thisValue) { $('#inputString<? echo $i; ?>').val(thisValue); setTimeout("$('#suggestions<? echo $i; ?>').hide();", 200); } </script> </head> <body> <form name="form1" id="form1" action="addepartment.php" method="post"> <table> <? for ( $i = 1; $i <=10; $i++ ) { ?> <tr> <td> <? echo $i; ?></td> <td> <div> <input type="text" size="30" value="" id="inputString<? echo $i; ?>" onkeyup="lookup(this.value);" onblur="fill();" /> </div> <div class="suggestionsBox" id="suggestions<? echo $i; ?>" style="display: none;"> <img src="upArrow.png" style="position: relative; top: -12px; left: 20px;" alt="upArrow" /> <div class="suggestionList" id="autoSuggestionsList<? echo $i; ?>"> &nbsp; </div> </div> </td> </tr> <? } ?> </table> </body> </html> The autocomplete suggestion works (although always shown on first row) but when selecting the data always returns to row 1, even if input was on row 5. I have a feeling this has to do with the fill() but not sure? is it due the the autocomplete page code? or does the fill referencing ThisValue have something to do with it. example of this page (as above) can be found here Thanks for the assistance, much appreciated. UPDATE - LOLO <html> <head> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript"> function lookup(i, inputString) { if(inputValue.length == 0) { // Hide the suggestion box. $('#suggestions' + i).hide(); } else { $.post("autocompleteperson.php", {queryString: ""+inputString+""}, function(data){ if(data.length >0) { $('#suggestions' + i).show(); $('#autoSuggestionsList' + i).html(data); } }); } } // lookup function fill(i, thisValue) { $('#inputString' + i).val(thisValue); setTimeout("$('#suggestions' + i).hide();", 200); } </script> </head> <body> <form name="form1" id="form1" action="addepartment.php" method="post"> <table> <? for ( $i = 1; $i <=10; $i++ ) { ?> <tr> <td> <? echo $i; ?></td> <td> <div> <input type="text" size="30" value="" id="inputString<?php echo $i; ?>" onkeyup="lookup(this.value);" onblur="fill();" /> </div> <div class="suggestionsBox" id="suggestions<? echo $i; ?>" style="display: none;"> <img src="upArrow.png" style="position: relative; top: -12px; left: 20px;" alt="upArrow" /> <div class="suggestionList" id="autoSuggestionsList<? echo $i; ?>"> &nbsp; </div> </div> </td> </tr> <? } ?> </table> </body> </html> google chrome catched the following errors: first line on input, second line on loosing focus

    Read the article

  • Django ModelForm is giving me a validation error that doesn't make sense

    - by River Tam
    I've got a ModelForm based on a Picture. class Picture(models.Model): name = models.CharField(max_length=100) pub_date = models.DateTimeField('date published') tags = models.ManyToManyField('Tag', blank=True) content = models.ImageField(upload_to='instaton') def __unicode__(self): return self.name class PictureForm(forms.ModelForm): class Meta: model = Picture exclude = ('pub_date','tags') That's the model and the ModelForm, of course. def submit(request): if request.method == 'POST': # if the form has been submitted form = PictureForm(request.POST) if form.is_valid(): return HttpResponseRedirect('/django/instaton') else: form = PictureForm() # blank form return render_to_response('instaton/submit.html', {'form': form}, context_instance=RequestContext(request)) That's the view (which is being correctly linked to by urls.py) Right now, I do nothing when the form submits. I just check to make sure it's valid. If it is, I forward to the main page of the app. <form action="/django/instaton/submit/" method="post"> {% csrf_token %} {{ form.as_p }} <input type="submit" value"Submit" /> </form> And there's my template (in the correct location). When I try to actually fill out the form and just validate it, even if I do so correctly, it sends me back to the form and says "This field is required" between Name and Content. I assume it's referring to Content, but I'm not sure. What's my problem? Is there a better way to do this?

    Read the article

  • Problem with JSTL and weblogic

    - by Jeune
    I get the following error when I run my java ee app on weblogic, javax.servlet.jsp.el.ELException: Cannot find PropertyDescriptor for 'name' for bean 'class java.lang.String' I want to print a list of artists with the following class, public class Artist { private int id; private String name; private String genre; public Artist() { } public Artist(String name){ this.name=name; } public void setId(int id) { this.id = id; } public int getId() { return id; } public void setName(String name) { this.name = name; } public String getName() { return name; } public String getGenre() { return genre; } public void setGenre(String genre) { this.genre = genre; } } The following lines of code seem to be causing the problem because when I remove it I don't get the error anymore. <c:forEach items="artists" var="artist"> <c:out value="${artist.name}"></c:out><br/> </c:forEach> When I use PrintWriter to print, it works: for (Artist artist:artists){ resp.getWriter().println(artist.getName()); } I am using java ee 2.4 and weblogic 9.2

    Read the article

  • TimeoutException when WCF Host and Client are in the same process

    - by Pharao2k
    I've ran into a really weird problem. I am building a heavily distributed application where each app instance can either be a Host and/or Client to a WCF-Service (very p2p-like). Everything works fine, as long as the Client and the targeted Host (By which I mean the app, not the Host, since currently everything runs on a single computer (so no Firewall problems etc.)) are NOT the same. IF they are the same, then the app hangs for exactly 1 Minute and then throws a TimeoutException. WCF-Logging did not produce anything helpful. Here is a small app which demonstrates the Problem: public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } private void button1_Click(object sender, RoutedEventArgs e) { var binding = new NetTcpBinding(); var baseAddress = new Uri(@"net.tcp://localhost:4000/Test"); ServiceHost host = new ServiceHost(typeof(TestService), baseAddress); host.AddServiceEndpoint(typeof(ITestService), binding, baseAddress); var debug = host.Description.Behaviors.Find<ServiceDebugBehavior>(); if (debug == null) host.Description.Behaviors.Add(new ServiceDebugBehavior { IncludeExceptionDetailInFaults = true }); else debug.IncludeExceptionDetailInFaults = true; host.Open(); var clientBinding = new NetTcpBinding(); var testProxy = new TestProxy(clientBinding, new EndpointAddress(baseAddress)); testProxy.Test(); } } [ServiceContract] public interface ITestService { [OperationContract] void Test(); } public class TestService : ITestService { public void Test() { MessageBox.Show("foo"); } } public class TestProxy : ClientBase<ITestService>, ITestService { public TestProxy(NetTcpBinding binding, EndpointAddress remoteAddress) : base(binding, remoteAddress) { } public void Test() { Channel.Test(); } } What am I doing wrong? Regards, Pharao2k

    Read the article

  • Print a string that contains a certain pattern in Java

    - by jjpotter
    I am trying to find a regular expression within a line of a .csv file, so I can eventually save all the matches to another file, and lose all the other junk. So a line in my file might look like: MachineName,User,IP,VariableData,Location The VariableData is what I want to match, and if there's a match, print the line. I am using a pattern for this because I only want 3 out of 10 of variations of VariableData, and out of those 3, they are numbered differently(example, "pc104, pccrt102, pccart65"). I am trying to do this using the Scanner Class and keeping it simple as possible so I can understand it. Here is where I was heading with this...(the pattern isn't complete, just have it like this for testing). import java.io.File; import java.util.Scanner; import java.util.regex.Pattern; public class pcv { public static void main(String[] args) { File myFile = new File("c:\\temp\\report.csv"); Pattern myPat = Pattern.compile("pc"); try{ Scanner myScan = new Scanner(myFile); while(myScan.hasNext()){ if(myScan.hasNext(myPat)){ System.out.println("Test"); } } }catch(Exception e){ } } } This code loops, im guessing the .hasNext() methods are resetting themselves. I've played around with the Matcher class a little bit, but only found a way to match the expression but not get the whole line. My other throught was maybe somehow count the line that contains the pattern, then go back and print the line that corresponds to the counts.

    Read the article

  • ASP.NET MVC 2 strange behavior

    - by Voice
    Hi Recently I installed VS 2010 Release (migrated from RC) and my MVC application is not working anymore. More concrete: I have a wizard with several steps for new customer account creation (Jquery form wizard, but it doesn't really matter). Each step contains a typed partial View for each part of account: Company, Customer, Licence, etc. When I submit the form I see really strange thing in ModelState. There are duplicate keys for Company: with "Company" prefix and without it. Something like this: [6] "Company.Phone" string [12] "Phone" string My model state for all these keys is not valid because Company is actually null and validation fails. When it was RC there were no such keys with "Company" prefix. So these keys in ModelState with prefix "Company" appeared after I installed VS Release. Here is my code: Main View <div id="registerSteps"> <div id="firstStep" class="step"> <fieldset> <legend><%=Html.Encode(Register.CustomerInfo) %></legend> <% Html.RenderPartial("CustomerInfo", ViewData["newCust"]); %> </fieldset> </div> <div id="secondStep" class="step"> <fieldset> <legend><%=Html.Encode(Register.CompanyInfo) %></legend> <% Html.RenderPartial("CompanyInfo", ViewData["newComp"]); %> </fieldset> </div> <div id="thirdStep" class="step"> <fieldset> <legend><%=Html.Encode(Register.LicenceInfo) %></legend> <% Html.RenderPartial("LicenceInfo", ViewData["newLic"]); %> </fieldset> </div> <div id="lastStep" class="step"> <fieldset> <legend><%=Html.Encode(Register.PrivacyStatement) %></legend> <% Html.RenderPartial("PrivacyStatementInfo"); %> </fieldset> </div> <div id="registerNavigation"> <input class="navigation_button" value="Back" type="reset"/> <input class="navigation_button" value="Next" type="submit"/> </div> </div> Two partial views (to show that they are actually identical): Company: <div id="dCompanyInfo"> <div> <div> <%=Html.LocalizableLabelFor(company => company.Name, Register.CompanyName) %> </div> <div> <%=Html.TextBoxFor(company => company.Name) %> <%=Html.ValidationMessageFor(company => company.Name) %> </div> </div> <div> <div> <%=Html.LocalizableLabelFor(company => company.Phone, Register.Phone) %> </div> <div> <%=Html.TextBoxFor(company => company.Phone) %> <%=Html.ValidationMessageFor(company => company.Phone) %> </div> </div> <div> <div> <%=Html.LocalizableLabelFor(company => company.Fax, Register.Fax) %> </div> <div> <%=Html.TextBoxFor(company => company.Fax) %> <%=Html.ValidationMessageFor(company => company.Fax) %> </div> </div> <div> <div> <%=Html.LocalizableLabelFor(company => company.Size_ID, Register.CompanySize) %> </div> <div> <%=Html.ValueListDropDown(company => company.Size_ID, (CodeRoad.AQua.DomainModel.ValueList)ViewData["CompSize"], (string)ViewData["Culture"]) %> <%=Html.ValidationMessageFor(company => company.Size_ID) %> </div> </div> <div> <div> <%=Html.LocalizableLabelFor(company => company.Industry_ID, Register.Industry) %> </div> <div> <%=Html.ValueListDropDown(company => company.Industry_ID, (CodeRoad.AQua.DomainModel.ValueList)ViewData["Industry"], (string)ViewData["Culture"]) %> <%=Html.ValidationMessageFor(company => company.Industry_ID) %> </div> </div> </div> And for Customer <div id="dCustomerInfo"> <div> <div> <%=Html.LocalizableLabelFor(customer => customer.Email, Register.Email) %> </div> <div> <%=Html.TextBoxFor(customer => customer.Email) %> <%=Html.ValidationMessageFor(customer => customer.Email) %> </div> </div> <div> <div> <%=Html.LocalizableLabelFor(customer => customer.Male, Register.Gender) %> </div> <div> <%=Html.ListBoolEditor(customer => customer.Male, Register.Male, Register.Female, Register.GenderOptionLabel) %> <%=Html.ValidationMessageFor(customer => customer.Male) %> </div> </div> <div> <div> <%=Html.LocalizableLabelFor(customer => customer.FirstName, Register.FirstName) %> </div> <div> <%=Html.TextBoxFor(customer => customer.FirstName) %> <%=Html.ValidationMessageFor(customer => customer.FirstName) %> </div> </div> <div> <div> <%=Html.LocalizableLabelFor(customer => customer.LastName, Register.LastName) %> </div> <div> <%=Html.TextBoxFor(customer => customer.LastName) %> <%=Html.ValidationMessageFor(customer => customer.LastName) %> </div> </div> <div> <div> <%=Html.LocalizableLabelFor(customer => customer.Role_ID, Register.Role) %> </div> <div> <%=Html.ValueListDropDown(customer => customer.Role_ID, (CodeRoad.AQua.DomainModel.ValueList)ViewData["OrgRole"], (string)ViewData["Culture"]) %> <%=Html.ValidationMessageFor(customer => customer.Role_ID) %> </div> </div> </div> There are some home made extension methods, but they worked pretty well in previous version (VS RC). Html which is generated is also ok, no "Company.Phone"-like stuff. So I wonder, where all these keys with "Company" came from and what can I do with that? I appreciate any solution.

    Read the article

  • VB .Net - Reflection: Reflected Method from a loaded Assembly executes before calling method. Why?

    - by pu.griffin
    When I am loading an Assembly dynamically, then calling a method from it, I appear to be getting the method from Assembly executing before the code in the method that is calling it. It does not appear to be executing in a Serial manner as I would expect. Can anyone shine some light on why this might be happening. Below is some code to illustrate what I am seeing, the code from the some.dll assembly calls a method named PerformLookup. For testing I put a similar MessageBox type output with "PerformLookup Time: " as the text. What I end up seeing is: First: "PerformLookup Time: 40:842" Second: "initIndex Time: 45:873" Imports System Imports System.Data Imports System.IO Imports Microsoft.VisualBasic.Strings Imports System.Reflection Public Class Class1 Public Function initIndex(indexTable as System.Collections.Hashtable) As System.Data.DataSet Dim writeCode As String MessageBox.Show("initIndex Time: " & Date.Now.Second.ToString() & ":" & Date.Now.Millisecond.ToString()) System.Threading.Thread.Sleep(5000) writeCode = RefreshList() End Function Public Function RefreshList() As String Dim asm As System.Reflection.Assembly Dim t As Type() Dim ty As Type Dim m As MethodInfo() Dim mm As MethodInfo Dim retString as String retString = "" Try asm = System.Reflection.Assembly.LoadFrom("C:\Program Files\some.dll") t = asm.GetTypes() ty = asm.GetType(t(28).FullName) 'known class location m = ty.GetMethods() mm = ty.GetMethod("PerformLookup") Dim o as Object o = Activator.CreateInstance(ty) Dim oo as Object() retString = mm.Invoke(o,Nothing).ToString() Catch Ex As Exception End Try return retString End Function End Class

    Read the article

  • GWT serialization issue

    - by Eddy
    I am having a heck of a time returning an ArrayList of objects that implement IsSerializable via RPC. The IsSerializable pojo contains one variable, a String, and has a 0 parameter constructor. I have removed the .gwt.rpc file from my war and still I get: com.google.gwt.user.client.rpc.SerializationException: Type 'com.test.myApp.client.model.Test' was not included in the set of types which can be serialized by this SerializationPolicy or its Class object could not be loaded. For security purposes, this type will not be serialized.: instance = com.test.myApp.client.model.Test@17a9692 at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java:610) I am using GWT 2.0.2 with jdk 1.6.0_18. Any ideas on what might be going on or what I am doing wrong? Here is the code for the Test class and the remote method is returning ArrayList. I even modified the code for it to just return one instance of Test with the same result: the exception above. package com.test.myApp.client.model; import com.google.gwt.user.client.rpc.IsSerializable; public class Test implements IsSerializable{ private String s; public Test() {} public Test(String s) { this.s = s; } public String getS() { return s; } public void setS(String s) { this.s = s; } } Greatly appreciate the help! Eddy

    Read the article

  • How to implement "business rules" in Rails?

    - by Zabba
    What is the way to implement "business rules" in Rails? Let us say I have a car and want to sell it: car = Cars.find(24) car.sell car.sell method will check a few things: does current_user own the car? check: car.user_id == current_user.id is the car listed for sale in the sales catalog? check: car.catalogs.ids.include? car.id if all o.k. then car is marked as sold. I was thinking of creating a class called Rules: class Rules def initialize(user,car) @user = user @car = car end def can_sell_car? @car.user_id == @user.id && @car.catalogs.ids.include? @car.id end end And using it like this: def Car def sell if Rules.new(current_user,self).can_sell_car ..sell the car... else @error_message = "Cannot sell this car" nil end end end As for getting the current_user, I was thinking of storing it in a global variable? I think that whenever a controller action is called, it's always a "fresh" call right? If so then storing the current user as a global variable should not introduce any risks..(like some other user being able to access another user's details) Any insights are appreciated! UPDATE So, the global variable route is out! Thanks to PeterWong for pointing out that global variables persist! I've now thinking of using this way: class Rules def self.can_sell_car?(current_user, car) ......checks.... end end And then calling Rules.can_sell_car?(current_user,@car) from the controller action. Any thoughts on this new way?

    Read the article

  • What is the best way to handle autorotation with multiple subview?

    - by thangnguyen
    I am learning and programing an application. I do this project based on what I learned from the book Beginning iphone 3 development. I have two main questions here: I would like to create a multi utility application so I need multiple-view. I have a main view controller which will control switching between views. In this example I have two views A and B. I have 2 view controller A and B which will handles all of events on these 2 views. I have 2 nib files viewA.xib and viewB.xib. One of the uitility is reading PDF. So I create another class which handle the PDF file which can load a PDF page call PDFview. From Interface Builder, I selected class identity for view of the viewB.xib as PDFView class. The result is I can switching between View A and view B. View B will display the content of the PDF page. I am not sure if my solution is right or wrong but now I don't know how to handle the autorotation. The rotation will active the view controller B. But the PDFView handle how to display the PDF on the View. Could you please tell me how I should handle this in a right way? Second question: Should I create the subview automatically? In case I need to do the swipe page animation, how can I do that? I think that I need to load another subview so I can do the animation when swap view. But I think this solution will waste the resource. I can just load another page of the PDF, but in this case I don't know how to use animation? Please tell me how I should solve this? I highly appreciate your time reading and answering my question. Thang Nguyen

    Read the article

  • deserialize system.outofmemoryexception

    - by clanier9
    I've got a serializeable class called Cereal with several public fields shown here <Serializable> Public Class Cereal Public id As Integer Public cardType As Type Public attacker As String Public defender As String Public placedOn As String Public attack As Boolean Public placed As Boolean Public played As Boolean Public text As String Public Sub New() End Sub End Class My client computer is sending a new Cereal to the host by serializing it shown here 'sends data to host stream (c1) Private Sub cSendText(ByVal Data As String) Dim bf As New BinaryFormatter Dim c As New Cereal c.text = Data bf.Serialize(mobjClient.GetStream, c) End Sub The host listens to the stream for activity and when something gets put on it, it is supposed to deserialize it to a new Cereal shown here 'accepts data sent from the client, raised when data on host stream (c2) Private Sub DoReceive(ByVal ar As IAsyncResult) Dim intCount As Integer Try 'find how many byte is data SyncLock mobjClient.GetStream intCount = mobjClient.GetStream.EndRead(ar) End SyncLock 'if none, we are disconnected If intCount < 1 Then RaiseEvent Disconnected(Me) Exit Sub End If Dim bf As New BinaryFormatter Dim c As New Cereal c = CType(bf.Deserialize(mobjClient.GetStream), Cereal) If c.text.Length > 0 Then RaiseEvent LineReceived(Me, c.text) Else RaiseEvent CardReceived(Me, c) End If 'starts listening for action on stream again SyncLock mobjClient.GetStream mobjClient.GetStream.BeginRead(arData, 0, 1024, AddressOf DoReceive, Nothing) End SyncLock Catch e As Exception RaiseEvent Disconnected(Me) End Try End Sub when the following line executes, I get a System.OutOfMemoryException and I cannot figure out why this isn't working. c = CType(bf.Deserialize(mobjClient.GetStream), Cereal) The stream is a TCPClient stream. I'm new to serialization/deserialization and using visual studio 11

    Read the article

  • passing java mail message object from between applications

    - by jezhilvalan
    I'm using java mail api 1.4.1 to obtain new emails. Two classes are being used to obtain emails and then parsing it. "GetMail" class communicates with mail server(Gmail,yahoo etc) and obtains the message object. Then the message object is passed to yet another class "MailFormatter" class, which then parses the message object, obtains the email headers (From,To,Subject etc) and then it parses the Multipart content to obtain the main body and attachments.Since both "Mail getting" and "Mail formatting" process are very resource intensive, these classes are going to be implemented as separate web applications.This application is going to monitor new emails for numerous email ids.If these ("GetMail" and "MailFormatter") are implemented as separate web applications, how can I pass the message object from "GetMail" app to "MailFormatter" app ? Is there a way through which I can persist the obtained message object in a certain location (a location which is common to both "GetMail" and "MailFormatter" applications), so that "GetMail" can persist the message object in that location, and then "MailFormatter" app can read "Message" objects from that location and carry out the parsing process. Message objects cannot be serialized. If they cannot be serialized how can I persist the state of java mail message object? please do help me to resolve this issue.

    Read the article

  • Can a destructor be recursive?

    - by Cubbi
    Is this program well-defined, and if not, why exactly? #include <iostream> #include <new> struct X { int cnt; X (int i) : cnt(i) {} ~X() { std::cout << "destructor called, cnt=" << cnt << std::endl; if ( cnt-- > 0 ) this->X::~X(); // explicit recursive call to dtor } }; int main() { char* buf = new char[sizeof(X)]; X* p = new(buf) X(7); p->X::~X(); // explicit call to dtor delete[] buf; } My reasoning: although invoking a destructor twice is undefined behavior, per 12.4/14, what it says exactly is this: the behavior is undefined if the destructor is invoked for an object whose lifetime has ended Which does not seem to prohibit recursive calls. While the destructor for an object is executing, the object's lifetime has not yet ended, thus it's not UB to invoke the destructor again. On the other hand, 12.4/6 says: After executing the body [...] a destructor for class X calls the destructors for X's direct members, the destructors for X's direct base classes [...] which means that after the return from a recursive invocation of a destructor, all member and base class destructors will have been called, and calling them again when returning to the previous level of recursion would be UB. Therefore, a class with no base and only POD members can have a recursive destructor without UB. Am I right?

    Read the article

  • wpf c# databinding on object

    - by Enriquev
    Hello, say I have this control: public partial class bloc999 : UserControl { bloc999Data mainBlock = new bloc999Data(); public bloc999() { InitializeComponent(); mainBlock.txtContents = "100"; base.DataContext = mainBlock; } } in the xaml: <TextBox Margin="74,116,106,0" Name="txtContents" Text="{Binding Path=txtContents, UpdateSourceTrigger=PropertyChanged,Mode = TwoWay}" /> <TextBox Margin="74,145,106,132" Name="txtContents2" Text="{Binding Path=txtContents2, UpdateSourceTrigger=PropertyChanged,Mode = TwoWay}" /> Then I have this class: public class bloc999Data : INotifyPropertyChanged { string _txtContents; string _txtContents2; public event PropertyChangedEventHandler PropertyChanged; void NotifyPropertyChanged(string propName) { if (this.PropertyChanged != null) this.PropertyChanged( this, new PropertyChangedEventArgs(propName)); } public string txtContents2 { get { return this._txtContents2; } set { if (int.Parse(value) > int.Parse(this._txtContents)) { this._txtContents2 = "000"; } else this._txtContents2 = value; NotifyPropertyChanged("txtContents2"); } } public string txtContents { get { return this._txtContents; } set { this._txtContents = value; NotifyPropertyChanged("txtContents"); } } } Ok now say I have A button on the form and I do this in the code: mainBlock.txtContents2 = "7777777"; It puts 000 in the textbox, but If i just type in manually, in the textbox (txtContents2, the setter code is called but for some reason the textboxes value does not change, the instance value does change. help?

    Read the article

  • .NET threading solution for long queries

    - by Eddie
    Senerio We have an application that records incidents. An external database needs to be queried when an incident is approved by a supervisor. The queries to this external database are sometimes taking a while to run. This lag is experienced through the browser. Possible Solution I want to use threading to eliminate the simulated hang to the browser. I have used the Thread class before and heard about ThreadPool. But, I just found BackgroundWorker in this post. MSDN states: The BackgroundWorker class allows you to run an operation on a separate, dedicated thread. Time-consuming operations like downloads and database transactions can cause your user interface (UI) to seem as though it has stopped responding while they are running. When you want a responsive UI and you are faced with long delays associated with such operations, the BackgroundWorker class provides a convenient solution. Is BackgroundWorker the way to go when handling long running queries? What happens when 2 or more BackgroundWorker processes are ran simultaneously? Is it handled like a pool?

    Read the article

  • Should i use a trigger or Behaviors for this?

    - by Michael
    I have an abstract object called Applicant and two different types of objects that inherit from Applicant called Business and Individual. So I have three classes that look like this: public abstract class Applicant { ... } public class Individual : Applicant { ... } public class Business : Applicant { ... } Now in the DataGrid I want to show all the details of Applicant object. When you choose a row I want to show details of either the business or individual as a internal grid. Something like this <DataGrid> <DataGrid.Columns> <!--Show different columns --> </DataGrid.Columns> <DataGrid.RowDetailsTemplate> <!--Show if Individual --> <DataGrid> <DataGrid.Columns> <DataGridTextColumn Header="First Name" ... /> <DataGridTextColumn Header="Last Name" ... /> </DataGrid.Columns> </DataGrid> <!--Show if business --> <DataGrid> <DataGrid.Columns> <DataGridTextColumn Header="Business Name" ... /> <DataGridTextColumn Header="Tax id" ... /> </DataGrid.Columns> </DataGrid> </DataGrid.RowDetailsTemplate> </DataGrid> Now I'm not sure if I need to use a Triggers or Behaviors to accomplish this? Thanks for everyones help! FYI I'm using Silverlight 4.0 with Prism.

    Read the article

  • Spring MVC: How to resolve the path to subdirectories of the root 'JSP' folder in a web application

    - by chrisjleu
    What is a simple way to resolve the path to a JSP file that is not located in the root JSP directory of a web application using SpringMVCs viewResolvers? For example, suppose we have the following web application structure: web-app |-WEB-INF |-jsp |-secure |-admin.jsp |-admin2.jsp index.jsp login.jsp I would like to use some out-of-the-box components to resolve the JSP files within the jsp root folder and the secure subdirectory. I have a *-servlet.xml file that defines: an out-of-the-box, InternalResourceViewResolver: <bean id="jspViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property> <property name="prefix" value="/WEB-INF/jsp/"></property> <property name="suffix" value=".jsp"></property> </bean> a handler mapping: <bean id="handlerMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"> <property name="mappings"> <props> <prop key="/index.htm">urlFilenameViewController</prop> <prop key="/login.htm">urlFilenameViewController</prop> <prop key="/secure/**">urlFilenameViewController</prop> </props> </property> </bean> an out-of-the-box UrlFilenameViewController controller: <bean id="urlFilenameViewController" class="org.springframework.web.servlet.mvc.UrlFilenameViewController"> </bean> The problem I have is that requests to the JSPs in the secure directory cannot be resolved, as the jspViewResolver only has a prefix defined as /jsp/ and not /jsp/secure/. Is there a way to handle subdirectories like this? I would prefer to keep this structure because I'm also trying to make use of Spring Security and having all secure pages in a subdirectory is a nice way to do this. There's probably a simple way to acheive this but I'm new to Spring and the Spring MVC framework so any pointers would be appreciated.

    Read the article

  • XML serialization of a collection in C#

    - by Archana R
    I have two classes as follows: public class Info { [XmlAttribute] public string language; public int version; public Book book; public Info() { } public Info(string l, int v, string author, int quantity, int price) { this.language = l; this.version = v; book = new Book(author, quantity, price); } } public class Book { [XmlAttribute] public string author; public int quantity; public int price; [XmlIgnore]public int total; public NameValueCollection nvcollection = new NameValueCollection(); public Book() { } public Book(string author, int quantity, int price) { this.author = author; this.quantity = quantity; this.price = price; total = quantity * price; nvcollection.Add(author, price.ToString()); } } I have created an ArrayList which adds the two instances of Info class as follows: FileStream fs = new FileStream("SerializedInfo.XML", FileMode.Create); List<Info> arrList = new List<Info>(); XmlSerializer xs = new XmlSerializer(typeof(List<Info>)); Info pObj = new Info("ABC", 3, "DEF", 2, 6); Info pObj1 = new Info("GHI", 4, "JKL", 2, 8); arrList.Add(pObj); arrList.Add(pObj1); xs.Serialize(fs, arrList); fs.Close(); But when I try to serialize, I get an exception as "There was an error reflecting type 'System.Collections.Generic.List`1[ConsoleApplicationSerialization.Info]'." Can anyone help me with it? Also, instead of namevaluecollection, which type of structure can i use?

    Read the article

  • Overridden button control escaping content. How to stop it?

    - by RemotecUk
    Hi, I've got an ASP.Net button control that I have overridden to provide different functionality. the code looks as follows.. I'm overriding the Render method to surround the control with an <a>... /// <summary> /// Render Method /// </summary> /// <param name="writer"></param> protected override void Render(HtmlTextWriter writer) { base.CssClass = "euva-button-decorated"; writer.Write("<a class=\"euva-button\">"); base.Render(writer); writer.Write("</a>"); } When I check the generated source on the page, I find that where ASP.Net has injected its click handler it does the following... <a class="euva-button"><input type="submit" name="TestButton" value="Test Button" onclick="clickOnce(this);WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions(&quot;TestButton&quot;, &quot;&quot;, true, &quot;&quot;, &quot;&quot;, false, false))" id="TestButton" class="euva-button-decorated" /></a> ... it seems to be escaping the output for the double quotes which means that the browser cannot understand the javascript. How do I make the render method not escape the injected ASP.Net client click handler ?? Note I also have my own client click handler which is declared declaratively in the page mark-up.

    Read the article

  • Pulling info from database and dynamically adding them into different divs

    - by Matt Nathanson
    This may be a bit of a php n00b question but i've managed to get it working this far and I'm a little bit stuck. I'm pulling 12 images with descriptions out of a database. I want to insert them into a client rotator that has 3 sets of 4. They will be contained in divs called clientrotate1, clientrotate2, and clientrotate3 respectively. Inside each of those divs I want to have 4 images with classes thumb1, thumb2, thumb3, and thumb4 I am successful in having the images and descriptions pull into clientrotator 1. Where I get stuck is to how to dynamically add the 2nd and 3rd set of data into clientrotator2 and clientrotator3. Here is my function: public function DisplayClientRotator(){ $result = mysql_query( 'SELECT * FROM project ORDER BY id DESC LIMIT 12' ) or die("SELECT Error: ".mysql_error()); $iterator = 1; while ($row = mysql_fetch_assoc($result)) { echo "<div id='clientrotate1'>"; echo "<div class='thumb$iterator'>"; echo "<img style='width: 172px; height: 100px;' src=".$row['photo']." />"; echo "<div class='transbox'>"; echo "<div class='thumbtext'>"; echo $row['campaign']; echo "</div>"; echo "</div>"; echo "</div>"; echo "</div>"; $iterator++; } Any help or pointers int he right direction would be greatly appreciated! Thanks so much, Matt

    Read the article

  • What's the deal with Java's public fields?

    - by Annan
    I've been reading two articles (1)(2) on javaworld.com about how all class fields should be private and getter/setter methods are just as bad. An object should act on the data it has rather than allowing access to it. I'm currently working on a University assignment for Connect Four. In designing the program the Agents playing the Game need access to the Board's state (so they can decide what to move). They also need to pass this move to the Game so it can validate it as a legal move. And during deciding what to move pieces are grouped into Threats with a start and end Points. Board, Threat and Point objects don't really do anything. They are just there to store related data that can be accessed in a human readable way. At the start of design I was representing Points on the board as two element int arrays, however that got annoying when creating points or referencing components of them. So, the class: public class Point { public int x; public int y; public Point(int x, int y){ this.x = x; this.y = y; } } Perfect in every way I can think of. Except it breaks every rule I've learned. Have I sinned?

    Read the article

  • Using Qt signals/slots instead of a worker thread

    - by Rob
    I am using Qt and wish to write a class that will perform some network-type operations, similar to FTP/HTTP. The class needs to connect to lots of machines, one after the other but I need the applications UI to stay (relatively) responsive during this process, so the user can cancel the operation, exit the application, etc. My first thought was to use a separate thread for network stuff but the built-in Qt FTP/HTTP (and other) classes apparently avoid using threads and instead rely on signals and slots. So, I'd like to do something similar and was hoping I could do something like this: class Foo : public QObject { Q_OBJECT public: void start(); signals: void next(); private slots: void nextJob(); }; void Foo::start() { ... connect(this, SIGNAL(next()), this, SLOT(nextJob())); emit next(); } void Foo::nextJob() { // Process next 'chunk' if (workLeftToDo) { emit next(); } } void Bar::StartOperation() { Foo* foo = new Foo; foo->start(); } However, this doesn't work and UI freezes until all operations have completed. I was hoping that emitting signals wouldn't actually call the slots immediately but would somehow be queued up by Qt, allowing the main UI to still operate. So what do I need to do in order to make this work? How does Qt achieve this with the multitude of built-in classes that appear to perform lengthy tasks on a single thread?

    Read the article

< Previous Page | 705 706 707 708 709 710 711 712 713 714 715 716  | Next Page >