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  • What's your all-time creativity problem?

    - by furtelwart
    Sometimes, you stumble with programming. Sometimes, it's a lack of creativity, sometimes, you need a new solution. But there are a lot of situations, you stick in, every time they occur. For myself, it's when I have to create the interface between model and viewer. I designed my data structure very well and drew a GUI prototype, but the missing link won't be written. What are your personal barricades in developing projects?

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  • Arranging models, views, controllers in a Kohana 3 project

    - by Pekka
    I'm looking at how to set up a mid-sized web application with Kohana 3. I have implemented MVC patterns in the past but never worked against a "formalized" MVC framework so I'm still getting my head around the terminology - toying around with basic examples, building views and templates, and so on. I'm progressing fairly well but I want to set up a real-world web project (one of my own that I've been planning for quite some time now) as a learning object. I learn best by example, but example-based documentation is a bit sparse for Kohana 3 right now - they say so themselves on the site. While I'm not worried about getting into the framework soon enough, I'm a bit concerned about arranging a healthily structured code base from the start - i.e. how to split up controllers, how to name them, and how to separate the functionality into the appropriate models. My application could, in its core, be described as a business directory with a main businesses table. Businesses can be listed by category and by street name. Each business has a detail page. Business owners can log in and edit their business's entry. Businesses can post offers into an offers table. I know this is pretty vague, but I don't want to cram too much information into this question. I'll be more than happy to go into more detail if needed. Supposing I have all the basic functionality worked out and in place already - list all businesses, edit business, list businesses by street name, create offer, and so on, and I'm just looking for how to fit the functionality into a MVC pattern and into a Kohana application structure that can be easily extended: Do you know real-life, publicly accessible examples of "database-heavy" applications like directories, online communities... with a log-in area built on Kohana 3 where I could take a peek how they do it? Are there conventions or best practices on how to structure an extendable login area for end users in a Kohana project that is not only able to handle a business directory page, but further products on separate pages as well? Do you know application structuring HOWTOs or best practices for Kohana 3 not mentioned in the user guide and the inofficial Wiki? Have you built something similar and could give me some recommendations?

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  • Select the Initial Text in a Silverlight TextBox

    - by Dan Auclair
    I am trying to figure out the best way to select all the text in a TextBox the first time the control is loaded. I am using the MVVM pattern, so I am using two-way binding for the Text property of the TextBox to a string on my ViewModel. I am using this TextBox to "rename" something that already has a name, so I would like to select the old name when the control loads so it can easily be deleted and renamed. The initial text (old name) is populated by setting it in my ViewModel, and it is then reflected in the TextBox after the data binding completes. What I would really like to do is something like this: <TextBox x:Name="NameTextBox" Text="{Binding NameViewModelProperty, Mode=TwoWay}" SelectedText="{Binding NameViewModelProperty, Mode=OneTime}" /> Basically just use the entire text as the SelectedText with OneTime binding. However, that does not work since the SelectedText is not a DependencyProperty. I am not completely against adding the selection code in the code-behind of my view, but my problem in that case is determining when the initial text binding has completed. The TextBox always starts empty, so it can not be done in the constructor. The TextChanged event only seems to fire when a user enters new text, not when the text is changed from the initial binding of the ViewModel. Any ideas are greatly appreciated!

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  • Accessible semantic jQuery tabs plugin

    - by user249950
    Hello, Just a quick question to see if anyone knows of any jquery tabs plugins that run based on a similar structure to: <div class="tabs"> <div> <h4>Tab one</h4> <p>Lorem Ipsum</p> </div> <div> <h4>Tab two</h4> <p>Lorem Ipsum</p> </div> </div> Where the plugin grabs the title of the tabs from the h4s? I can only seem to find plugins that use the structure: <div id="tabs"> <ul> <li><a href="#tabs-1">Nunc tincidunt</a></li> <li><a href="#tabs-2">Proin dolor</a></li> <li><a href="#tabs-3">Aenean lacinia</a></li> </ul> <div id="tabs-1"> <p>Tab 1 content</p> </div> <div id="tabs-2"> <p>Tab 2 content</p> </div> <div id="tabs-3"> <p>Tab 3 content</p> </div> </div> I assume the only other way to use these plugins would be to grab the titles, remove them, add them into a list at the top of the html and then run the plugin based on that? I just ask as I am quite new to jQuery so I'm not sure how I would go about it and just wondered if there was a plugin already in existence that anyone knew of. If not, not to worry, I'll have to get busy with the docs and give it a go! Cheers

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  • Combine NotifyIcon and ToolTip

    - by Greycrow
    I have been working with NotifyIcon in order to show an icon in the taskbar. This program has no Windows Form. I perhaps could create one and make it invisible but I was hoping to avoid it. The ToolTip functions attached to NotifyIcon are somewhat lacking, and one of the gurus here suggested I look at the ToolTip functionality. It is possible to attach ToolTip to a form. Is is possible to attach it to just the NotifyIcon? I'm trying do this: NotifyIcon CTicon = new NotifyIcon(); ToolTip toolTip = new ToolTip(); toolTip.SetToolTip(CTicon, "Test"); And I get the error "cannot convert from 'System.Windows.Forms.NotifyIcon' to 'System.Windows.Forms.Control'. Is there a way to convert? I also tried: toolTip.SetToolTip(CTicon.Container, "Test"); but a container is apparently not a valid control either. I apologize for my total lack of understanding of how this may or may not work. Thanks in advance.

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  • Microsoft Reporting 2005 and Report Viewer Report ASP.Net Session Has Expired on Load

    - by ThaKidd
    At my job, I have been tasked with fixing an error with our reporting server. That error is ASP.Net Session Has Expired. This error occurs when the Visual Studio ReportViewer 2005 Control attempts to load a report. We are trying to host this report to users hitting our Internet exposed Windows 2003 Server running IIS 6.0. The reportviewer control is attempting to load this report from a second server running Microsoft SQL 2005 w/Reporting Services. The SQL server is not exposed to the Internet. Here is the weird thing. This error never occurs on the development box. When it is transferred to the production IIS server, the error starts to occur. It only happens every time the report is first loaded. If the browser's refresh button is clicked 5-10 times, the report will finally load correctly. I have reproduced this same error on the latest version of Mozilla Firefox, IE 7, and IE 8. The report only takes 10-20 seconds to load. I have tried timeouts in the 300+ second range on the reporting server/iis production server. I have tried a few options like Async (which causes images not to load properly) and setting the session mode to iproc with a high timeout value in the Reporting Server's web.config. I have also tried using the reporting server's IP address in the report viewer's code instead of the server name. I plan on verifying a picture loading issue which I also read about tomorrow when I get into work. I am unsure what service packs Visual Studio 2005 and the MSSQL server are running. Was an update released to fix this problem that I could not find? Does anyone have a fix for this?

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  • How to implement DisplayMemberPath for my Wpf UserControl?

    - by Bevan
    I'm writing a WPF User Control for my application, wrapping a ListBox and a few other items. The ListBox has a new ItemTemplate that presents four pieces of information for each item in my list. I can hard code each of the four bindings to specific properties on my list items and they display fine. However, I want my UserControl to be a bit more flexible. On ListBox and ComboBox there is a property DisplayMemberPath (inherited from ItemsControl) that seems to "inject" the appropriate property binding into the standard ItemTemplate. How do I achieve the same result with my user control? I'd like to set up four new properties to allow configuration of the information displayed: public string LabelDisplayPath { get; set; } public string MetricDisplayPath { get; set; } public string TitleDisplayPath { get; set; } public string SubtitleDisplayPath { get; set; } Reviewing ItemsControl.DisplayMemberPath with Reflector seems to go down the rabbit hole, I haven't been able to fathom how it works. Also, if I'm completely off course - and there's another, more "WPF" technique that I should be using instead, please point me in that direction.

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  • Read app.config file in Installscript

    - by Chetan
    Hi friends I wan to know that how to read connection string from app.config using installshield es, though there is an option to import the app.config file XML structure but the problem is the section of the connection is being updated at runtime. During Upgrade i need to fetch the the app.config file's connection string section is there any way to implement this. Thanks

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  • TimHeuer's FloatableWindow Issue

    - by MarioEspinoza
    Hi, I've some trouble with Tim's FloatableWindow. (<--SourceCode & DLLs) It throws the following Exception once closed the control. Object reference not set to an instance of an object in System.Windows.Controls.FloatableWindow.b__0(Object s, EventArgs args) in System.Windows.CoreInvokeHandler.InvokeEventHandler(Int32 typeIndex, Delegate handlerDelegate, Object sender, Object args) in MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, String eventName) First I created a control by using the FloatableWindow template, And then i just created the Window on CodeBehind. private void Button_Click_1(object sender, RoutedEventArgs e) { FloatableWindow1 f1 = new FloatableWindow1();//TheTemplatedOne f1.ShowDialog(); } private void Button_Click_2(object sender, RoutedEventArgs e) { FloatableWindow f = new FloatableWindow(); f.Height = 100; f.Width = 100; f.Background = new SolidColorBrush(Colors.Yellow); f.ShowDialog(); } But stills the same issue... Im not trying to access any information on the Closed EventHandler. Im running v3.0.40624.4 Release of the dll on SL v3.0.50106.0 in a C# project w/RiaServices Thanks

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  • MySQL id sequence

    - by Michal Fronczyk
    Is this a correct way for id generation in MySQL ? INSERT INTO Picture (PictureId,First_pick,Title,Description,File_Name,Is_Vertical)VALUES ((SELECT max(pictureid)+1 FROM Picture),0,?,?,?,?) I mean if it is guaranted that PictureId will be unique when this query is run by many threads ? I can't modify table structure. Should I use any specific locks, index or transaction isolation level ? Regards, Michal

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  • Papers on Software Methodology recommendation

    - by kunjaan
    Please recommend me software engineering/methodology/practices paper. So far I have enjoyed: 1968 Dijkstra : Go To Statement Considered Harmful Reason about correctness about program Nikalus Wirth : Program Development by Stepwise Refinement Not worried about program structure 1971 David Parnas : Information Distribution Aspects of Design Methodology 1972 Liskov : Design Methodology for Reliable Software Systems Extensible Language : Schuman and P Jourrand R. Balzer Structured Programming : Dahl - Hierarchical Program Structures 1971 Jim Morris Protection in Programming Languages 1973 Bill Wulf and Mary Shaw Global Variable Considered Harmful 1974 : Lisko and Zilles ADTs

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  • from ObjectiveC to ECMAscript

    - by eco_bach
    Going thru the excellent Apress books on Objective C. To help in my undertanding, I try and recode any Ojective C code samples in Java/Action-script. One common structure in method calls in ObjC leaves me a bit puzzled. -(id) initWithPressure: (float) pressure treadDepth: (float) treadDepth; (in ECMAscript)Would this be most similar to 1 method call with multiple arguments OR 2 method calls, each with a single argument?

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  • Connection aborted.

    - by Pinu
    I am getting this error when i am trying to upload a file of 3mb or more on my WCF client application. SocketException (0x2745): An established connection was aborted by the software in your host machine] System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) +73 System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) +131 [IOException: Unable to read data from the transport connection: An established connection was aborted by the software in your host machine.] System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) +294 System.Net.PooledStream.Read(Byte[] buffer, Int32 offset, Int32 size) +26 System.Net.Connection.SyncRead(HttpWebRequest request, Boolean userRetrievedStream, Boolean probeRead) +297 [WebException: The underlying connection was closed: An unexpected error occurred on a receive.] System.Net.HttpWebRequest.GetResponse() +5314029 System.ServiceModel.Channels.HttpChannelRequest.WaitForReply(TimeSpan timeout) +54 [CommunicationException: An error occurred while receiving the HTTP response to http://localhost:4649/Service1.svc. This could be due to the service endpoint binding not using the HTTP protocol. This could also be due to an HTTP request context being aborted by the server (possibly due to the service shutting down). See server logs for more details.] System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) +7596735 System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) +275 SmartConnectClient.SmartConnect.IService1.OrderCertMail(OrderCertMailResponse OrderCertMail1) +0 SmartConnectClient.SmartConnect.Service1Client.OrderCertMail(OrderCertMailResponse OrderCertMail1) in c:\documents and settings\pkale\my documents\visual studio 2008\projects\smartconnectclient\smartconnectclient\service references\smartconnect\reference.cs:1939 SmartConnectClient.Test_CertMail_Order.Page_Load(Object sender, EventArgs e) in C:\Documents and Settings\pkale\My Documents\Visual Studio 2008\Projects\SmartConnectClient\SmartConnectClient\Test_CertMail_Order.aspx.cs:40 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35 System.Web.UI.Control.OnLoad(EventArgs e) +99 System.Web.UI.Control.LoadRecursive() +50 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627 enter code here

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  • Can generateDS be used like xsd.exe

    - by BozoJoe
    Can I use generateDS.py in python in a similar way that I would use xsd.exe to create C# classes from xsd? Basically, given an xsd schema I want to create a data structure, in python, fill its data in, and then render it into an xml string. perhaps pyXSD is better? oh, and yes, I'm a python newbie

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  • What are the disadvantages to declaring Scala case classes?

    - by Graham Lea
    If you're writing code that's using lots of beautiful, immutable data structures, case classes appear to be a godsend, giving you all of the following for free with just one keyword: Everything immutable by default Getters automatically defined Decent toString() implementation Compliant equals() and hashCode() Companion object with unapply() method for matching But what are the disadvantages of defining an immutable data structure as a case class? What restrictions does it place on the class or its clients? Are there situations where you should prefer a non-case class?

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  • Silverlight TemplateBinding to RotateTransform

    - by Trog Dog
    I am trying to create the simplest Silverlight templated control, and I can't seem to get TemplateBinding to work on the Angle property of a RotateTransform. Here's the ControlTemplate from generic.xaml: <ControlTemplate TargetType="local:CtlKnob"> <Grid x:Name="grid" RenderTransformOrigin="0.5,0.5"> <Grid.RenderTransform> <TransformGroup> <RotateTransform Angle="{TemplateBinding Angle}"/> <!-- This does not work --> <!-- <RotateTransform Angle="70"/> --> <!-- This works --> </TransformGroup> </Grid.RenderTransform> <Ellipse Stroke="#FFB70404" StrokeThickness="19"/> <Ellipse Stroke="White" StrokeThickness="2" Height="16" VerticalAlignment="Top" HorizontalAlignment="Center" Width="16" Margin="0,2,0,0"/> </Grid> </ControlTemplate> Here's the C#: using System.Windows; using System.Windows.Controls; namespace CtlKnob { public class CtlKnob : Control { public CtlKnob() { this.DefaultStyleKey = typeof(CtlKnob); } public static readonly DependencyProperty AngleProperty = DependencyProperty.Register("Angle", typeof(double), typeof(CtlKnob), null); public double Angle { get { return (double)GetValue(AngleProperty); } set { SetValue(AngleProperty,value); } } } }

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  • Trie VS Suffix Tree VS Suffix Array

    - by ukrania
    Hello everyone, Which one is the structure that provides best performance results? Trie, Suffix Tree or Suffix Array? There are other equivalent structures? What are good Java implementations of these structures? Thanks for your answers. Best Regards, ukrania

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  • Unable to cast lists with Reflection in C#

    - by DrLazer
    I am having a lot of trouble with Reflection in C# at the moment. The app I am writing allows the user to modify the attributes of certain objects using a config file. I want to be able to save the object model (users project) to XML. The function below is called in the middle of a foreach loop, looping through a list of objects that contain all the other objects in the project within them. The idea is, that it works recursively to translate the object model into XML. Dont worry about the call to "Unreal" that just modifes the name of the objects slightly if they contain certain words. private void ReflectToXML(object anObject, XmlElement parentElement) { Type aType = anObject.GetType(); XmlElement anXmlElement = m_xml.CreateElement(Unreal(aType.Name)); parentElement.AppendChild(anXmlElement); PropertyInfo[] pinfos = aType.GetProperties(); //loop through this objects public attributes foreach (PropertyInfo aInfo in pinfos) { //if the attribute is a list Type propertyType = aInfo.PropertyType; if ((propertyType.IsGenericType)&&(propertyType.GetGenericTypeDefinition() == typeof(List<>))) { List<object> listObjects = (aInfo.GetValue(anObject,null) as List<object>); foreach (object aListObject in listObjects) { ReflectToXML(aListObject, anXmlElement); } } //attribute is not a list else anXmlElement.SetAttribute(aInfo.Name, ""); } } If an object attributes are just strings then it should be writing them out as string attributes in the XML. If an objects attributes are lists, then it should recursively call "ReflectToXML" passing itself in as a parameter, thereby creating the nested structure I require that nicely reflect the object model in memory. The problem I have is with the line List<object> listObjects = (aInfo.GetValue(anObject,null) as List<object>); The cast doesn't work and it just returns null. While debugging I changed the line to object temp = aInfo.GetValue(anObject,null); slapped a breakpoint on it to see what "GetValue" was returning. It returns a "Generic list of objects" Surely I should be able to cast that? The annoying thing is that temp becomes a generic list of objects but because i declared temp as a singular object, I can't loop through it because it has no Enumerator. How can I loop through a list of objects when I only have it as a propertyInfo of a class? I know at this point I will only be saving a list of empty strings out anyway, but thats fine. I would be happy to see the structure save out for now. Thanks in advance

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  • Complex sorting of XML subnodes in .Net3.5 onwards

    - by MicMit
    XML structure expressed in Xpath kind of Records/Record/Actions/Action/ActionDate the other node on the same level Records/Record/Actions/Action/CTCDate Is there easy or not easy way to sort it on "order by ActionDate,CTCDate" ( in SQL notation ), but per Actions for each selected Record when we iterate somehow ( not per XML file ). File around 50M

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  • sdf file (sqlce) not copying to emulator

    - by MicTech
    I have problem with copying sdf file to WM emulator. My solution structure MyApp.DataLayer - there is sdf file MyApp.WMUI - this is windows mobile winform app sdf file has set build action: content copy to output directory: copy always But if I deploy app to emulator, that sdf file doesn't copy.

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  • WPF TextBox Interceping RoutedUICommands

    - by Joseph Sturtevant
    I am trying to get Undo/Redo keyboard shortcuts working in my WPF application (I have my own custom functionality implemented using the Command Pattern). It seems, however, that the TextBox control is intercepting my "Undo" RoutedUICommand. What is the simplest way to disable this so that I can catch Ctrl+Z at the root of my UI tree? I would like to avoid putting a ton of code/XAML into each TextBox in my application if possible. The following briefly demonstrates the problem: <Window x:Class="InputBindingSample.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:loc="clr-namespace:InputBindingSample" Title="Window1" Height="300" Width="300"> <Window.CommandBindings> <CommandBinding Command="loc:Window1.MyUndo" Executed="MyUndo_Executed" /> </Window.CommandBindings> <DockPanel LastChildFill="True"> <StackPanel> <Button Content="Ctrl+Z Works If Focus Is Here" /> <TextBox Text="Ctrl+Z Doesn't Work If Focus Is Here" /> </StackPanel> </DockPanel> </Window> using System.Windows; using System.Windows.Input; namespace InputBindingSample { public partial class Window1 { public static readonly RoutedUICommand MyUndo = new RoutedUICommand("MyUndo", "MyUndo", typeof(Window1), new InputGestureCollection(new[] { new KeyGesture(Key.Z, ModifierKeys.Control) })); public Window1() { InitializeComponent(); } private void MyUndo_Executed(object sender, ExecutedRoutedEventArgs e) { MessageBox.Show("MyUndo!"); } } }

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  • XML Deserialization of complex object

    - by nils_gate
    I have xml structure like this: <Group id="2" name="Third" parentid="0" /> <Group id="6" name="Five" parentid="4" /> <Group id="3" name="Four" parentid="2" /> <Group id="4" name="Six" parentid="1" /> parent is denotes Group's Id. The Constructor of Group reads like: public Group(string name, int ID, Group parent) While De-serializing, how do I get parent using Id and pass into group?

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  • how to set UISwitch pointer to access switch from one uiviewcontroller another uiviewcontroller

    - by Rkm
    System UIViewcontroller has button event.Tap on Button fire InfoTableviewController. InfoTableview has UISwitch . How to set NSMutableArray of UIswitch pointer for System UIViewcontroller to access switch . SystemUIviewcontroller button event - (IBAction) Info_Button_Clicked:(id) sender { // pushcontroller Info *info = [[Info alloc]initWithNibName:@"Info" bundle:[NSBundle mainBundle]]; [self.navigationController pushViewController:info animated:YES]; [info release]; } Here for Info TableviewController // Customize the appearance of table view cells. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = nil; if ([indexPath section] == 0) { static NSString *kDisplayCell_ID = @"DisplayCellID"; cell = [self.tableView dequeueReusableCellWithIdentifier: kDisplayCell_ID]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier: kDisplayCell_ID] autorelease]; cell.selectionStyle = UITableViewCellSelectionStyleNone; } else { // the cell is being recycled, remove old embedded controls UIView *viewToRemove = nil; viewToRemove = [cell.contentView viewWithTag:1]; if (viewToRemove) [viewToRemove removeFromSuperview]; } cell.textLabel.text = [[self.Soundarray objectAtIndex: indexPath.row] valueForKey:@"labelKey"]; UIControl *control = [[self.Soundarray objectAtIndex: indexPath.row] valueForKey:@"viewKey"]; [cell.contentView addSubview:control]; return cell; } }

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