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• Jquery Tools: Scrollable - onBeforeSeek & onSeek toggle child div

  - by Rick

  I'm scrolling some panels which contain some youtube clips using Jquery Tools Scrollable. I'd like to hide them during the transition to avoid a jerky animation. Markup: <div id="panel_items"> <div id="wrap"> <div class="event"> <div class="header">Event 1</div><!-- Header is always displayed --> <div class="youtube">youtube clips</div><!-- hide during transition, then show --> </div> <div class="event"> <div class="header">Event 2</div> <div class="youtube" style="display: none">More youtube clips</div> </div> </div> </div> Current JS: $("#panel_items").scrollable({ onBeforeSeek: function() { console.log("hide .child .youtube"); }, onSeek: function() { console.log("Show child .youtube"); } }); Bonus question: How can I automatically set the height of #panel_items to match the current panel height (.event)? Thank you.

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• Overloading the QDataStream << and >> operators for a user-defined type

  - by Alex Wood

  I have a an object I'd like to be able to read and write to/from a QDataStream. The header is as follows: class Compound { public: Compound(QString, QPixmap*, Ui::MainWindow*); void saveCurrentInfo(); void restoreSavedInfo(QGraphicsScene*); void setImage(QPixmap*); QString getName(); private: QString name, homeNotes, addNotes, expText; Ui::MainWindow *gui; QPixmap *image; struct NMRdata { QString hnmrText, cnmrText, hn_nmrText, hn_nmrNucl, notes; int hnmrFreqIndex, cnmrFreqIndex, hn_nmrFreqIndex, hnmrSolvIndex, cnmrSolvIndex, hn_nmrSolvIndex; }*nmr_data; struct IRdata { QString uvConc, lowResMethod, irText, uvText, lowResText, highResText, highResCalc, highResFnd, highResFrmla, notes; int irSolvIndex, uvSolvIndex; }*ir_data; struct PhysicalData { QString mpEdit, bpEdit, mpParensEdit, bpParensEdit, rfEdit, phyText, optAlpha, optConc, elemText, elemFrmla, notes; int phySolvIndex, optSolvIndex; }*physical_data; }; For all intensive purposes, the class just serves as an abstraction for a handful of QStrings and a QPixmap. Ideally, I would be able to write a QList to a QDataStream but I'm not exactly sure how to go about doing this. If operator overloading is a suitable solution, would writing code like friend QDataStream& operator << (QDataStream&,Compound) { ... } be a potential solution? I'm very open to suggestions! Please let me know if any further clarification is needed.

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• Questions on usages of sizeof

  - by Appu

  Question 1 I have a struct like, struct foo { int a; char c; }; When I say sizeof(foo), i am getting 8 on my machine. As per my understanding, 4 bytes for int, 1 byte for char and 3 bytes for padding. Is that correct? Given a struct like the above, how will I find out how many bytes will be added as padding? Question 2 I am aware that sizeof can be used to calculate the size of an array. Mostly I have seen the usage like (foos is an array of foo) sizeof(foos)/sizeof(*foos) But I found that the following will also give same result. sizeof(foos) / sizeof(foo) Is there any difference in these two? Which one is preffered? Question 3 Consider the following statement. foo foos[] = {10,20,30}; When I do sizeof(foos) / sizeof(*foos), it gives 2. But the array has 3 elements. If I change the statement to foo foos[] = {{10},{20},{30}}; it gives correct result 3. Why is this happening? Any thoughts..

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• TinyMCE Image Alignment

  - by will.earp.co.uk

  TinyMCE has always been a little difficult to align images. Either the align tag, or adding style="float: left;" has been it solution. Ideally I would just like to add class="left" or class="right" so that I can set the border and margins of the image. Up until now the only way to do this without using the advimage plugin was to insert the image, then select it, the select a style from the style menu. Ideally I should be able to use the align control in the image dialogue to set the alignment class or use the alignment controls on the toolbar when in the main editing window. I have just again started looking at a solution to this, now that IE6 is finally starting to die, I can use CSS attributes in selectors, so IMG[style="float: left;"] {} Works, but I would rather use a class incase there are any other style attributes which will cause the selector to fail. And it doesn't work in IE6, and you know some corporate clients will still be running the bloody thing! So I looked through the TinyMCE documentation and found the formats configuration option, that seems to allow you to specify how tinyMCE applies code for various operations. Here I can add the IMG tag as a selector, and have classes: "left" for the alignleft function. This applies the class correctly when the alignment is selected from the toolbar, but it still writes an inline style when the alignment is selected through the image dialogue. Am I doing something wrong or is there a better way of doing this that will allow my clients to select image alignment from both the image dialogue and the toolbar, whilst applying a class to the image?

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• Javascript: td value == td value

  - by Isis

  Hello <tr> <td class = "nowrap cr" id="cr1">123123</td> <td class = "nowrap ch" id="ch1">123123</td> </tr> <tr> <td class = "nowrap cr" id="cr2">123123</td> <td class = "nowrap ch" id="ch2">123123</td> </tr> <tr> <td class = "nowrap cr" id="cr3">123123</td> <td class = "nowrap ch" id="ch3">123123</td> </tr> How do I set the font-weight: bold in tr where chID == crID <script type="text/javascript"> $(function() { for(var i =0;i < 20;i++) { if($('#cr'+i).val() == $('#ch'+i).val()) { $('#cr'+i).parent().css('font-weight', 'bold'); } } }); </script> Dont' working. Any ideas? Sorry for bad english

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• How do I pass an array of structs (containing std:string or BSTR) from ATL to C#. SafeArray? Varian

  - by Andrew

  Hi, I have an ATL COM object that I am using from C#. The interface currently looks like: interface ICHASCom : IDispatch{ [id(1), helpstring("method Start")] HRESULT Start([in] BSTR name, [out,retval] VARIANT_BOOL* result); ... [id(4), helpstring("method GetCount")] HRESULT GetCount([out,retval] LONG* numPorts); ... [id(7), helpstring("method EnableLogging")] HRESULT EnableLogging([in] VARIANT_BOOL enableLogging); }; That is, it's a very simple interface. I also have some events that I send back too. Now, I would like to add something to the interface. In the ATL I have some results, which are currently structs and look like struct REPORT_LINE { string creationDate; string Id; string summary; }; All the members of the struct are std::string. I have an array of these that I need to get back to the C#. What's the best way to do this? I suspect someone is going to say, "hey, you can't just send std::string over COM like that. If so, fine, but what's the best way to modidfy the struct? Change the std::string to BSTR? And then how do I, 1) Set up the IDL to pass an array of structs (structs with BSTR or std::string) 2) If I must use SAFEARRAYS, how do I fill the SAFEARRAYS with the structs. I'm not familiar with COM except for use with simple types. Thanks, Dave

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• Metamorphs Messing Up CSS in Ember.js Views

  - by Austin Fatheree

  I'm using Ember.js / handlebars to loop through a collection and spit out some items that I'd like bootstrap to handle nice and responsive like. Here is the issue: The bootstrap-responsive css has some declrations in it like: .row-fluid > [class*="span"]:first-child { margin-left: 0; } and .row-fluid:before, .row-fluid:after { display: table; content: ""; } These rules seem to target the first children. When I loop through my collection in handlebars I end up with a bunch of metamorph code around my items: <div class="row-fluid"> {{#each restaurantList}} {{view GS.vHomePageRestList content=this class="span6"}} {{/each}} </div> Here is what is produced: <div class="row-fluid"> <script id="metamorph-9-start" type="text/x-placeholder"></script> <script id="metamorph-104-start" type="text/x-placeholder"></script> <div id="ember2527" class="ember-view span6"> My View </div> <script id="metamorph-104-end" type="text/x-placeholder"></script> <script id="metamorph-105-start" type="text/x-placeholder"></script> <div id="ember2574" class="ember-view span6"> My View 2 </div> <script id="metamorph-105-end" type="text/x-placeholder"></script> <script id="metamorph-9-end" type="text/x-placeholder"></script> </div> So my question is this: 1. How can I tell css to ignore script tags? or 2. How can I edit the css bindings so that they skip over script tags when selecting the first or first child? or 3. How can I structure this so that Ember uses fewer/no metamorph tags? Here is a fiddle: http://jsfiddle.net/skilesare/SgwsJ/

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• Using nhibernate <loader> element with HQL queries

  - by Matt

  Hi All I'm attempting to use an HQL query in element to load an entity based on other entities. My class is as follows public class ParentOnly { public ParentOnly(){} public virtual int Id { get; set; } public virtual string ParentObjectName { get; set; } } and the mapping looks like this <class name="ParentOnly"> <id name="Id"> <generator class="identity" /> </id> <property name="ParentObjectName" /> <loader query-ref="parentonly"/> </class> <query name="parentonly" > select new ParentOnly() from SimpleParentObject as spo where spo.Id = :id </query> The class that I am attemping to map on top of is SimpleParentObject, which has its own mapping and can be loaded and saved without problems. When I call session.Get(id) the sql runs correctly against the SimpleParentObject table, and the a ParentOnly object is instantiated (as I can step through the constructer), but only a null comes back, rather than the instantiated ParentOnly object. I can do this succesfully using a instead of the HQL, but am trying to build this in a database independent fashion. Any thoughts on how to get the and elements to return a populated ParentOnly object...? Thanks Matt

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• Is Structuremap singleton thread safe?

  - by Ben

  Hi, Currently I have the following class: public class PluginManager { private static bool s_initialized; private static object s_lock = new object(); public static void Initialize() { if (!s_initialized) { lock (s_lock) { if (!s_initialized) { // initialize s_initialized = true; } } } } } The important thing here is that Initialize() should only be executed once whilst the application is running. I thought that I would refactor this into a singleton class since this would be more thread safe?: public sealed class PluginService { static PluginService() { } private static PluginService _instance = new PluginService(); public static PluginService Instance { get { return _instance; } } private bool s_initialized; public void Initialize() { if (!s_initialized) { // initialize s_initialized = true; } } } Question one, is it still necessary to have the lock here (I have removed it) since we will only ever be working on the same instance? Finally, I want to use DI and structure map to initialize my servcices so I have refactored as below: public interface IPluginService { void Initialize(); } public class NewPluginService : IPluginService { private bool s_initialized; public void Initialize() { if (!s_initialized) { // initialize s_initialized = true; } } } And in my registry: ForRequestedType<IPluginService>() .TheDefaultIsConcreteType<NewPluginService>().AsSingletons(); This works as expected (singleton returning true in the following code): var instance1 = ObjectFactory.GetInstance<IPluginService>(); var instance2 = ObjectFactory.GetInstance<IPluginService>(); bool singleton = (instance1 == instance2); So my next question, is the structure map solution as thread safe as the singleton class (second example). The only downside is that this would still allow NewPluginService to be instantiated directly (if not using structure map). Many thanks, Ben

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• "Illegal characters in path." Visual Studio WinForm Design View

  - by jacksonakj

  I am putting together a lightweight MVP pattern for a WinForms project. Everything compiles and runs fine. However when I attempt to open the WinForm in design mode in Visual Studio I get a "Illegal characters in path" error. My WinForm is using generics and inheriting from a base Form class. Is there a problem with using generics in a WinForm? Here is the WinForm and base Form class. public partial class TapsForm : MvpForm<TapsPresenter, TapsFormModel>, ITapsView { public TapsForm() { InitializeComponent(); } public TapsForm(TapsPresenter presenter) :base(presenter) { InitializeComponent(); UpdateModel(); } public IList<Taps> Taps { set { gridTaps.DataSource = value; } } private void UpdateModel() { Model.RideId = Int32.Parse(cboRide.Text); Model.Latitude = Double.Parse(txtLatitude.Text); Model.Longitude = Double.Parse(txtLongitude.Text); } } Base form MvpForm: public class MvpForm<TPresenter, TModel> : Form, IView where TPresenter : class, IPresenter where TModel : class, new() { private readonly TPresenter presenter; private TModel model; public MvpForm() { } public MvpForm(TPresenter presenter) { this.presenter = presenter; this.presenter.RegisterView(this); } protected override void OnLoad(EventArgs e) { base.OnLoad(e); if (presenter != null) presenter.IntializeView(); } public TModel Model { get { if (model == null) throw new InvalidOperationException("The Model property is currently null, however it should have been automatically initialized by the presenter. This most likely indicates that no presenter was bound to the control. Check your presenter bindings."); return model; } set { model = value;} } }

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• JAXB - Beans to XSD or XSD to beans?

  - by bajafresh4life

  I have an existing data model. I would like to express this data model in terms of XML. It looks like I have two options if I'm to use JAXB: Create an XSD that mirrors my data model, and use xjc to create binding objects. Marshalling and unmarshalling will involve creating a "mapping" class that would take my existing data objects and map them to the objects that xjc created. For example, in my data model I have a Doc class, and JAXB would create another Doc class with basically the same exact fields, and I would have to map from my Doc class to xjc's Doc class. Annotate my existing data model with JAXB annotations, and use schemagen to generate an XSD from my annotated classes. I can see advantanges and disadvantages of both approaches. It seems that most people using JAXB start with the XSD file. It makes sense that the XSD should be the gold standard truth, since it expresses the data model in a truly cross-platform way. I'm inclined to start with the XSD first, but it seems icky that I have to write and maintain a separate mapping class that shuttles data in between my world and JAXB world. Any recommendations?

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• Keyword 'this'(Me) is not available calling the base constructor

  - by serhio

  In the inherited class I use the base constructor, but can't use class's members calling this base constructor. In this example I have a PicturedLabel that knows it's own color and has a image. A TypedLabel : PictureLabel knows it's type but uses the base color. The (base)image that uses TypedLabel should be colored with the (base)color, however, I can't obtain this color: Error: Keyword 'this' is not available in the current context A workaround? /// base class public class PicturedLabel : Label { PictureBox pb = new PictureBox(); public Color LabelColor; public PicturedLabel() { // initialised here in a specific way LabelColor = Color.Red; } public PicturedLabel(Image img) : base() { pb.Image = img; this.Controls.Add(pb); } } public enum LabelType { A, B } /// derived class public class TypedLabel : PicturedLabel { public TypedLabel(LabelType type) : base(GetImageFromType(type, this.LabelColor)) //Error: Keyword 'this' is not available in the current context { } public static Image GetImageFromType(LabelType type, Color c) { Image result = new Bitmap(10, 10); Rectangle rec = new Rectangle(0, 0, 10, 10); Pen pen = new Pen(c); Graphics g = Graphics.FromImage(result); switch (type) { case LabelType.A: g.DrawRectangle(pen, rec); break; case LabelType.B: g.DrawEllipse(pen, rec); break; } return result; } }

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• Using singleton instead of a global static instance

  - by Farstucker

  I ran into a problem today and a friend recommended I use a global static instance or more elegantly a singleton pattern. I spent a few hours reading about singletons but a few things still escape me. Background: What Im trying to accomplish is creating an instance of an API and use this one instance in all my classes (as opposed to making a new connection, etc). There seems to be about 100 ways of creating a singleton but with some help from yoda I found some thread safe examples. ..so given the following code: public sealed class Singleton { public static Singleton Instance { get; private set; } private Singleton() { APIClass api = new APIClass(); //Can this be done? } static Singleton() { Instance = new Singleton(); } } How/Where would you instantiate the this new class and how should it be called from a separate class? EDIT: I realize the Singleton class can be called with something like Singleton obj1 = Singleton.Instance(); but would I be able to access the methods within the APIs Class (ie. obj1.Start)? (not that I need to, just asking) EDIT #2: I might have been a bit premature in checking the answer but I do have one small thing that is still causing me problems. The API is launching just fine, unfortunately Im able to launch two instances? New Code public sealed class SingletonAPI { public static SingletonAPI Instance { get; private set; } private SingletonAPI() {} static SingletonAPI() { Instance = new SingletonAPI(); } // API method: public void Start() { API myAPI = new API();} } but if I try to do something like this... SingletonAPI api = SingletonAPI.Instance; api.Start(); SingletonAPI api2 = SingletonAPI.Instance; // This was just for testing. api2.Start(); I get an error saying that I cannot start more than one instance.

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• Rails: Multiple "has_many through" for the two same models?

  - by neezer

  Can't wrap my head around this... class User < ActiveRecord::Base has_many :fantasies, :through => :fantasizings has_many :fantasizings, :dependent => :destroy end class Fantasy < ActiveRecord::Base has_many :users, :through => :fantasizings has_many :fantasizings, :dependent => :destroy end class Fantasizing < ActiveRecord::Base belongs_to :user belongs_to :fantasy end ... which works fine for my primary relationship, in that a User can have many Fantasies, and that a Fantasy can belong to many Users. However, I need to add another relationship for liking (as in, a User "likes" a Fantasy rather than "has" it... think of Facebook and how you can "like" a wall-post, even though it doesn't "belong" to you... in fact, the Facebook example is almost exactly what I'm aiming for). I gathered that I should make another association, but I'm kinda confused as to how I might use it, or if this is even the right approach. I started by adding the following: class Fantasy < ActiveRecord::Base ... has_many :users, :through => :approvals has_many :approvals, :dependent => :destroy end class User < ActiveRecord::Base ... has_many :fantasies, :through => :approvals has_many :approvals, :dependent => :destroy end class Approval < ActiveRecord::Base belongs_to :user belongs_to :fantasy end ... but how do I create the association through Approval rather than through Fantasizing? If someone could set me straight on this, I'd be much obliged!

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• NoSuchMethodError in Java using XStream

  - by Brad Germain

  I'm trying to save a database into a file using XStream and then open it again later using XStream and deserialize it back into the objects it was in previously. The database consists of an arraylist of tables, which consists of an arraylist of a data class where the data class contains an arraylist of objects. I'm basically trying to create an sql compiler. I'm currently getting a java.lang.NoSuchMethodError because of the last line in the load method. Here's what I have: Save Method public void save(Database DB){ File file = new File(DB.getName().toUpperCase() + ".xml"); //Test sample DB.createTable("TBL1(character(a));"); DB.tables.getTable("TBL1").rows.add(new DataList()); DB.tables.getTable("TBL1").rows.getRow(0).add(10); XStream xstream = new XStream(); //Database xstream.alias("Database", Database.class); //Tables xstream.alias("Table", Table.class); //Rows xstream.alias("Row", DataList.class); //Data //xstream.alias("Data", Object.class); //String xml = xstream.toXML(DB); Writer writer = null; try { writer = new FileWriter(file); writer.write(xstream.toXML(DB)); writer.close(); } catch (IOException e) { e.printStackTrace(); } } Load Method public void Load(String dbName){ XStream xstream = new XStream(); BufferedReader br; StringBuffer buff = null; try { br = new BufferedReader(new FileReader(dbName + ".xml")); buff = new StringBuffer(); String line; while((line = br.readLine()) != null){ buff.append(line); } } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } database = (Database)xstream.fromXML(buff.toString()); }

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• Styling a comment box to appear below dynamically-generated comments

  - by John

  Hello, For the code below, how could I make the form always appear 30 pixels below the bottom of the HTML table styled with "commentecho"? Thanks in advance, John $sqlStr = "SELECT comment.comment, comment.datecommented, login.username FROM comment LEFT JOIN login ON comment.loginid=login.loginid WHERE submissionid=$submissionid ORDER BY comment.datecommented DESC LIMIT 100"; $result = mysql_query($sqlStr); $arr = array(); echo "<table class=\"commentecho\">"; while ($row = mysql_fetch_array($result)) { echo '<tr>'; echo '<td class="commentname1">'.$row["comment"].'</td>'; echo '</tr>'; echo '<tr>'; echo '<td class="commentname2"><a href="http://www...com/sandbox/members/index.php?profile='.$row["username"].'">'.$row["username"].'</a>'.date('l, F j, Y &\nb\sp &\nb\sp g:i a &\nb\sp &\nb\sp \N\E\W &\nb\sp \Y\O\R\K &\nb\sp \T\I\M\E', strtotime($row["datecommented"])).'</td>'; echo '</tr>'; } echo "</table>"; echo '<form action="http://www...com/sandbox/comments/comments2.php" method="post"> <input type="hidden" value="'.$_SESSION['loginid'].'" name="uid"> <input type="hidden" value="'.$submissionid.'" name="submissionid"> <input type="hidden" value="'.$submission.'" name="submission"> <label class="addacomment" for="title">Add a comment:</label> <input class="commentsubfield" name="comment" type="comment" id="comment" maxlength="1000"> <div class="commentsubbutton"><input name="submit" type="submit" value="Submit"></div> </form> ';

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• Error Message, "The Controls collection cannot be modified because the control contains code blocks"

  - by Gogster

  I'm receiving this error on a page that previously worked fine, in fact the only change I've made to the page recently was to add another asp:TextBox and asp:RequiredFieldValidator control. The page already had numerous ASP.NET controls on it, so I cannot see why these extra controls would make a difference, anyway I shall post the code below and hopefully you can see what the error is: <%@ Control Language="C#" AutoEventWireup="true" CodeFile="MeetingGenerator.ascx.cs" Inherits="usercontrols_MeetingGenerator" %> <%@ Register TagPrefix="cc1" Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" %> <asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager> <div style="width:498px;height:425px;background-color:#033b2a;text-align:center;padding-top:20px;"> <asp:Label ID="lblDone" CssClass="done" runat="server"></asp:Label> <asp:Panel id="pnlAddReport" runat="server"> <div> <img src="../images/banners/add-meeting.png" alt="Add Report" /> </div> <p> <asp:ValidationSummary ID="ValidationSummary" CssClass="validationsummary" runat="server" /> <asp:TextBox ID="txtTitle" BorderStyle="None" CssClass="watermark" Width="250px" Height="22px" runat="server"></asp:TextBox> <cc1:TextBoxWatermarkExtender ID="TextBoxWatermarkExtender1" TargetControlID="txtTitle" WatermarkCssClass="watermark" WatermarkText=" Meeting title" runat="server"></cc1:TextBoxWatermarkExtender> <asp:RequiredFieldValidator ID="rfvTitle" ControlToValidate="txtTitle" Text="" ErrorMessage="Please enter the title" Display="None" InitialValue="" runat="server"></asp:RequiredFieldValidator> <asp:RequiredFieldValidator ID="rfvTitle1" ControlToValidate="txtTitle" Text="" ErrorMessage="Please enter the title" Display="None" InitialValue=" Meeting title" runat="server"></asp:RequiredFieldValidator> </p> <p> <asp:TextBox ID="txtDate" BorderStyle="None" CssClass="watermark" Width="250px" Height="22px" runat="server"></asp:TextBox> <cc1:CalendarExtender ID="ceDate" TargetControlID="txtDate" Format="dd/MM/yyyy" runat="server"> </cc1:CalendarExtender> <cc1:TextBoxWatermarkExtender ID="TextBoxWatermarkExtender2" TargetControlID="txtDate" WatermarkCssClass="watermark" WatermarkText=" Meeting Date" runat="server"></cc1:TextBoxWatermarkExtender> <asp:RequiredFieldValidator ID="rfvDate" ControlToValidate="txtDate" Text="" ErrorMessage="Please select the meeting date" Display="None" InitialValue="" runat="server"></asp:RequiredFieldValidator> <asp:RequiredFieldValidator ID="rfvDate1" ControlToValidate="txtDate" Text="" ErrorMessage="Please select the meeting date" Display="None" InitialValue=" Meeting Date" runat="server"></asp:RequiredFieldValidator> </p> <p> <asp:TextBox ID="txtMeetingTime" BorderStyle="None" Width="250px" Height="22px" MaxLength="5" runat="server"></asp:TextBox> <cc1:TextBoxWatermarkExtender ID="tweMeetingTime" TargetControlID="txtMeetingTime" WatermarkCssClass="watermark" WatermarkText=" Time (HH:MM)" runat="server"></cc1:TextBoxWatermarkExtender> <asp:RequiredFieldValidator ID="RequiredFieldValidator1" ControlToValidate="txtMeetingTime" Text="" ErrorMessage="Please enter the meeting time" Display="None" InitialValue="" runat="server"></asp:RequiredFieldValidator> <asp:RequiredFieldValidator ID="RequiredFieldValidator11" ControlToValidate="txtMeetingTime" Text="" ErrorMessage="Please enter the meeting time" Display="None" InitialValue=" Time (HH:MM)" runat="server"></asp:RequiredFieldValidator> </p> <p> <asp:TextBox ID="txtLocation" BorderStyle="None" CssClass="watermark" Width="250px" Height="22px" runat="server"></asp:TextBox> <cc1:TextBoxWatermarkExtender ID="TextBoxWatermarkExtender3" TargetControlID="txtLocation" WatermarkCssClass="watermark" WatermarkText=" Location" runat="server"></cc1:TextBoxWatermarkExtender> <asp:RequiredFieldValidator ID="rfvLocation" ControlToValidate="txtLocation" Text="" ErrorMessage="Please enter the location" Display="None" InitialValue="" runat="server"></asp:RequiredFieldValidator> <asp:RequiredFieldValidator ID="rfvLocation1" ControlToValidate="txtLocation" Text="" ErrorMessage="Please enter the location" Display="None" InitialValue=" Location" runat="server"></asp:RequiredFieldValidator> </p> <p> <asp:ImageButton ID="btnAddMeeting" ImageUrl="/images/buttons/addmeeting-btn.gif" runat="server" OnClick="btnAddMeeting_Click" /> </p> <p> </p> </asp:Panel> </div> <%@ Master Language="C#" MasterPageFile="/masterpages/Master.master" AutoEventWireup="true" %> <asp:content ContentPlaceHolderId="additionalhead" runat="server"> </asp:content> <asp:content ContentPlaceHolderId="additionalbody" runat="server"> <umbraco:Macro Alias="AddMeeting" runat="server"></umbraco:Macro> </asp:content> <asp:content ContentPlaceHolderId="bodyContent" runat="server"> </asp:content> <%@ Master Language="C#" AutoEventWireup="true" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title><umbraco:Item field="title" runat="server"></umbraco:Item></title> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js"></script> <script type="text/javascript" src="/js/jQueryString-2.0.2-Min.js"></script> <link rel="stylesheet" type="text/css" href="/css/Styles.css" /> <link rel="stylesheet" type="text/css" href="/css/Layout.css" /> <link rel="stylesheet" type="text/css" href="/css/Forms.css" /> <script type="text/javascript" language="javascript"> $(document).ready(function () { $('#uploadAgenda').hide(); $('#uploadMinutes').hide(); $('#<%=txtSearchEAA.ClientID%>').val('Search EAA'); var st = $.getQueryString({ ID:"search" }); if (st != '') { $('#<%=txtSearchEAA.ClientID%>').val(st); }; $('#<%=txtSearchEAA.ClientID%>').click(function() { $('#<%=txtSearchEAA.ClientID%>').val(''); }); }); </script> <script type="text/C#" runat="server"> protected void btnSearch_Click(object sender, EventArgs e) { Response.Redirect("/members/search-results?search=" + txtSearchEAA.Text); } </script> <asp:ContentPlaceHolder id="additionalhead" runat="server"></asp:ContentPlaceHolder> <umbraco:Item field="AdditionalHead" runat="server"></umbraco:Item> </head> <body style="background-color:#e5e5e5;"> <script runat="server"> protected void btnLogout_Click(object sender, EventArgs e) { FormsAuthentication.SignOut(); Response.Redirect("/login"); } </script> <form id="form1" runat="server"> <asp:ContentPlaceHolder id="additionalbody" runat="server"></asp:ContentPlaceHolder> <div class="wrapper"> <div class="content"> <div class="banner"> <div class="bannerSearchSpacer"> <a href="/home"><h1><span>EAA</span></h1></a> </div> <div class="aboutEAA"> &nbsp; </div> <div class="bannerSearchAligns"> <div class="searchbox"> <asp:TextBox ID="txtSearchEAA" CssClass="watermark" Width="155px" runat="server"></asp:TextBox> </div> <div class="searchButton"> <asp:ImageButton ID="imbSearch" ImageUrl="/images/buttons/go.gif" OnClick="btnSearch_Click" runat="server" /> </div> <div style="clear:both;"></div> </div> <div class="loginBox"> <dl> <dt>Hello</dt> <dd><umbraco:Macro Alias="MemberName" runat="server"></umbraco:Macro></dd> <dt>Arena</dt> <dd><umbraco:Macro Alias="MemberArena" runat="server"></umbraco:Macro></dd> </dl> <div><asp:ImageButton ID="btnLogout" ImageUrl="/images/buttons/logout.gif" runat="server" OnClick="btnLogout_Click" /></div> </div> <div style="clear:both;"></div> </div> <div id="contentarea"> <div class="menuLeft"> <div class="menuPlaceholder"> <umbraco:Macro Alias="DynamicMenu" runat="server"></umbraco:Macro> </div> </div> <div class="mainBody"> <asp:ContentPlaceHolder id="bodyContent" runat="server"></asp:ContentPlaceHolder> </div> <div style="clear:both;"></div> </div> </div> </div> </form> <umbraco:Macro Alias="MemberAnalytics" runat="server"></umbraco:Macro> </body> </html>

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• Problem calling std::max

  - by Eric

  I compiled my bison-generated files in Visual Studio and got these errors: ...\position.hh(83): error C2589: '(' : illegal token on right side of '::' ...\position.hh(83): error C2059: syntax error : '::' ...\position.hh(83): error C2589: '(' : illegal token on right side of '::' ...\position.hh(83): error C2059: syntax error : '::' The corresponding code is: inline void columns (int count = 1) { column = std::max (1u, column + count); } I think the problem is with std::max; if I change std::max to equivalent code then there is no problem anymore, but is there a better solution instead of changing the generated code? Here is the bison file I wrote: // // bison.yy // %skeleton "lalr1.cc" %require "2.4.2" %defines %define parser_class_name "cmd_parser" %locations %debug %error-verbose %code requires { class ParserDriver; } %parse-param { ParserDriver& driver } %lex-param { ParserDriver& driver } %union { struct ast *a; double d; struct symbol *s; struct symlist *sl; int fn; } %code { #include "helper_func.h" #include "ParserDriver.h" std::string error_msg = ""; } %token <d> NUMBER %token <s> NAME %token <fn> FUNC %token EOL %token IF THEN ELSE WHILE DO LET %token SYM_TABLE_OVERFLOW %token UNKNOWN_CHARACTER %nonassoc <fn> CMP %right '=' %left '+' '-' %left '*' '/' %nonassoc '|' UMINUS %type <a> exp stmt list explist %type <sl> symlist %{ extern int yylex(yy::cmd_parser::semantic_type *yylval, yy::cmd_parser::location_type* yylloc); %} %start calclist %% ... grammar rules ...

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• I/O between AIR client using Native process and executable java .jar

  - by aseem behl

  I am using Adobe AIR 2.0 native process API to launch a java executable jar. I/O is handled by writing to the input stream of the java process and reading from the output stream. The application is event based where several events are fired from the server. We catch these events in java code, handle them and write the output to the outputstream using the synchronized static method below. public class ReaderWriter { static Logger logger = Logger.getLogger(ReaderWriter.class); public synchronized static void writeToAir(String output){ try{ byte[] byteArray = output.getBytes(); DataOutputStream dataOutputStream = new DataOutputStream(System.out); dataOutputStream.write(byteArray); dataOutputStream.flush(); } catch (IOException e) { logger.info("Exception while writing the output. " + e); } } } The issue is that some messages are lost between the transfer and not all messages reach the AIR client. If I run the java application from the console I am receiving all the messages. It would be great if somebody could point out what I am missing. Following are some of the listeners used to send the event data to the AIR client. // class used to process Shutdown events from the Session private class SessionShutdownListener implements SessionListener{ public void onEvent(Event e) { Session.Shutdown sd = (Session.Shutdown) e; Session.ShutdownReason sr = sd.getReason(); String eventOutput = "eo;" + "Session Shutdown event ocurred reason=" + sr.strValue() + "\n"; ReaderWriter.writeToAir(eventOutput); } } // class used to process OperationSucceeded events from the Session private class SessionOperationSucceededListener implements SessionListener{ public void onEvent(Event e) { Session.OperationSucceeded os = (Session.OperationSucceeded) e; String eventOutput = "eo;" + "Session OperationSucceeded event ocurred" + "\n"; ReaderWriter.writeToAir(eventOutput); } }

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• Method binding to base method in external library can't handle new virtual methods "between"

  - by Berg

  Lets say I have a library, version 1.0.0, with the following contents: public class Class1 { public virtual void Test() { Console.WriteLine( "Library:Class1 - Test" ); Console.WriteLine( "" ); } } public class Class2 : Class1 { } and I reference this library in a console application with the following contents: class Program { static void Main( string[] args ) { var c3 = new Class3(); c3.Test(); Console.ReadKey(); } } public class Class3 : ClassLibrary1.Class2 { public override void Test() { Console.WriteLine("Console:Class3 - Test"); base.Test(); } } Running the program will output the following: Console:Class3 - Test Library:Class1 - Test If I build a new version of the library, version 2.0.0, looking like this: public class Class1 { public virtual void Test() { Console.WriteLine( "Library:Class1 - Test V2" ); Console.WriteLine( "" ); } } public class Class2 : Class1 { public override void Test() { Console.WriteLine("Library:Class2 - Test V2"); base.Test(); } } and copy this version to the bin folder containing my console program and run it, the results are: Console:Class3 - Test Library:Class1 - Test V2 I.e, the Class2.Test method is never executed, the base.Test call in Class3.Test seems to be bound to Class1.Test since Class2.Test didn't exist when the console program was compiled. This was very surprising to me and could be a big problem in situations where you deploy new versions of a library without recompiling applications. Does anyone else have experience with this? Are there any good solutions? This makes it tempting to add empty overrides that just calls base in case I need to add some code at that level in the future...

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• Custom WPF TreeView

  - by Robert

  I have a custom class that I would like to bind a WPF TreeView that has three tiers. Each tier needs to be bound like this: Monitor --> LCD --> Samsung 1445 LCD --> CRT --> Sony 125 CRT Here is the example code: public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); SystemInventory sysInventory = new SystemInventory(); //Possibly do something like this. _myTreeView.DataContext = sysInventory.DeviceGroupInstances; } public class SystemInventory { public ObservableCollection<DeviceGroup> DeviceGroupInstances { get; set; } public SystemInventory() { DeviceGroupInstances = new ObservableCollection<DeviceGroup>(); DeviceGroupInstances.Add(new DeviceGroup("Monitor")); } } public class DeviceGroup { public string DeviceGroupName { get; set; } public ObservableCollection<DeviceType> DeviceTypeInstances { get; set; } public DeviceGroup(string deviceGroupName) { DeviceTypeInstances = new ObservableCollection<DeviceType>(); DeviceGroupName = deviceGroupName; if (deviceGroupName == "Monitor") { DeviceTypeInstances.Add(new DeviceType("LCD")); DeviceTypeInstances.Add(new DeviceType("CRT")); } } } public class DeviceType { public string DeviceTypeName { get; set; } public ObservableCollection<DeviceInstance> DeviceInstances { get; set; } public DeviceType(string deviceGroupName) { DeviceInstances = new ObservableCollection<DeviceInstance>(); DeviceTypeName = deviceGroupName; if (deviceGroupName == "Monitor") { DeviceInstances.Add(new DeviceInstance("Samsung 1445 LCD")); } else { DeviceInstances.Add(new DeviceInstance("Sony 125 CRT")); } } } public class DeviceInstance { public string DeviceInstanceName { get; set; } public DeviceInstance(string instanceName) { DeviceInstanceName = instanceName; } } }

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• Java reflection

  - by heldopslippers

  Hi people. I have a question about reflection I am trying to have some kind of eval() method. So i can call for example: eval("test('woohoo')"); Now I understand the there is no eval method in java but there is reflection. I made the following code: String s = "test"; Class cl = Class.forName("Main"); Method method = cl.getMethod(s, String.class); method.invoke(null, "woohoo"); This works perfectly (of course there is a try, catch block around this code). It runs the test method. However I want to call multiple methods who all have different parameters. I don't know what parameters these are (so not only String.class). But how is this possible? how can I get the parameter types of a method ? I know of the following method: Class[] parameterTypes = method.getParameterTypes(); But that will return the parameterTypes of the method I just selected! with the following statement: Method method = cl.getMethod(s, String.class); Any help would be appreciated !

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• Wrapping FUSE from Go

  - by Matt Joiner

  I'm playing around with wrapping FUSE with Go. However I've come stuck with how to deal with struct fuse_operations. I can't seem to expose the operations struct by declaring type Operations C.struct_fuse_operations as the members are lower case, and my pure-Go sources would have to use C-hackery to set the members anyway. My first error in this case is "can't set getattr" in what looks to be the Go equivalent of a default copy constructor. My next attempt is to expose an interface that expects GetAttr, ReadLink etc, and then generate C.struct_fuse_operations and bind the function pointers to closures that call the given interface. This is what I've got (explanation continues after code): package fuse // #include <fuse.h> // #include <stdlib.h> import "C" import ( //"fmt" "os" "unsafe" ) type Operations interface { GetAttr(string, *os.FileInfo) int } func Main(args []string, ops Operations) int { argv := make([]*C.char, len(args) + 1) for i, s := range args { p := C.CString(s) defer C.free(unsafe.Pointer(p)) argv[i] = p } cop := new(C.struct_fuse_operations) cop.getattr = func(*C.char, *C.struct_stat) int {} argc := C.int(len(args)) return int(C.fuse_main_real(argc, &argv[0], cop, C.size_t(unsafe.Sizeof(cop)), nil)) } package main import ( "fmt" "fuse" "os" ) type CpfsOps struct { a int } func (me *CpfsOps) GetAttr(string, *os.FileInfo) int { return -1; } func main() { fmt.Println(os.Args) ops := &CpfsOps{} fmt.Println("fuse main returned", fuse.Main(os.Args, ops)) } This gives the following error: fuse.go:21[fuse.cgo1.go:23]: cannot use func literal (type func(*_Ctype_char, *_Ctype_struct_stat) int) as type *[0]uint8 in assignment I'm not sure what to pass to these members of C.struct_fuse_operations, and I've seen mention in a few places it's not possible to call from C back into Go code. If it is possible, what should I do? How can I provide the "default" values for interface functions that acts as though the corresponding C.struct_fuse_operations member is set to NULL?

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• Good hash function for a 2d index

  - by rlbond

  I have a struct called Point. Point is pretty simple: struct Point { Row row; Column column; // some other code for addition and subtraction of points is there too } Row and Column are basically glorified ints, but I got sick of accidentally transposing the input arguments to functions and gave them each a wrapper class. Right now I use a set of points, but repeated lookups are really slowing things down. I want to switch to an unordered_set. So, I want to have an unordered_set of Points. Typically this set might contain, for example, every point on a 80x24 terminal = 1920 points. I need a good hash function. I just came up with the following: struct PointHash : public std::unary_function<Point, std::size_t> { result_type operator()(const argument_type& val) const { return val.row.value() * 1000 + val.col.value(); } }; However, I'm not sure that this is really a good hash function. I wanted something fast, since I need to do many lookups very quickly. Is there a better hash function I can use, or is this OK?

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• Disassembling with python - no easy solution?

  - by Abc4599

  Hi, I'm trying to create a python script that will disassemble a binary (a Windows exe to be precise) and analyze its code. I need the ability to take a certain buffer, and extract some sort of struct containing information about the instructions in it. I've worked with libdisasm in C before, and I found it's interface quite intuitive and comfortable. The problem is, its Python interface is available only through SWIG, and I can't get it to compile properly under Windows. At the availability aspect, diStorm provides a nice out-of-the-box interface, but it provides only the Mnemonic of each instruction, and not a binary struct with enumerations defining instruction type and what not. This is quite uncomfortable for my purpose, and will require a lot of what I see as spent time wrapping the interface to make it fit my needs. I've also looked at BeaEngine, which does in fact provide the output I need, a struct with binary info concerning each instruction, but its interface is really odd and counter-intuitive, and it crashes pretty much instantly when provided with wrong arguments. The CTypes sort of ultimate-death-to-your-python crashes. So, I'd be happy to hear about other solutions, which are a little less time consuming than messing around with djgcc or mingw to make SWIGed libdisasm, or writing an OOP wrapper for diStorm. If anyone has some guidance as to how to compile SWIGed libdisasm, or better yet, a compiled binary (pyd or dll+py), I'd love to hear/have it. :) Thanks ahead.

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