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  • Wubi no longer supports install to fakeraid?

    - by Ryan
    About a week ago I used wubi to install ubuntu onto one of my two raid1 devices in windows 7. I tried to do the same this week on the same mobo/drive combo and now I can't get it to install. It gives me first an "invalid prefix" during the install and then says "completing install" followed by a crash into busybox with a warning that the raid can't be mounted because it already was mounted. Has there been a change in wubi or something in the recent past?

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  • Triggering Data Changes in N-Tier

    - by Ryan Kinal
    I've been studying n-tier architectures as of late, particularly in VB.NET with Entity Framework and/or LINQ to SQL. I understand the basic concepts, but have been wondering about best practices in regard to triggering CRUD-type operations from user input/action. So, the arcitecture looks something like the following: [presentation layer] - [business layer] - [data layer] - (database) Getting information from the database into the presentation layer is simple and abstracted. It's just a matter of instantiating a new object from the business layer, which in turn uses the data layer to get at the correct information. However, saving (updating and inserting), and deleting seem to require particular APIs on the relevant business objects. I have to assume this is standard practice, unless a business object will save itself on various operations (which seems inefficient), or on disposal (which seems like it just wouldn't work, or may be unwieldy and unreliable). Should my "savable" business objects all implement a particular "ISavable" or "IDatabaseObject" interface? Is this a recognized (anti-)pattern? Are there other, better patterns I should be using that I'm just unaware of? The TLDR question, I suppose, is How does the presentation layer trigger database changes?

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  • In PHP, what are the different design patterns to implement OO controllers as opposed to procedural controllers?

    - by Ryan
    For example, it's very straightforward to have an index.php controller be a procedural script like so: <?php //include classes and functions //get some data from the database //and/or process a form submission //render HTML using your template system ?> Then I can just navigate to http://mysite.com/index.php and the above procedural script is essentially acting as a simple controller. Here the controller mechanism is a basic procedural script. How then do you make controllers classes instead of procedural scripts? Must the controller class always be tied to the routing mechanism?

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  • Should I use float, double, or decimal for stats, position, etc?

    - by Ryan Peschel
    The problem with float and double is that they are not exact. If you are to do something like store replays, the values would have to be exact. The problems with decimal is that they are approximately 16x slower (confirmed by searching and personal testing) than floats and doubles. Couldn't Vector2s be another problem because they use floats internally for all the components? How do other games solve this problem? I'm sure they must use floats and doubles but aren't they not deterministic across platforms and different architecture? The replay files for games like SC2 run in a linear fashion so you cannot skip ahead so how do they solve the determinism issue with floating point numbers?

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  • Ubuntu will not load up from my USB

    - by Ryan Mungwira
    I have a Sony Vaio Duo 13 and I am trying to get Ubuntu 13.10 to run on a partition on my Ultrabook but it will not load up from the USB drive. It goes to the black screen that asks if you just want to Try Ubuntu or if you want to Install it. I click just to try and it will not load. It acts like it is going to start up but then it just goes to a blank black screen and then I have to a hard restart. It does that when I click install as well. And I have tried disabling the Secure Install on my computer as well and nothing happens! What do I do?!?

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  • What patterns book for iOS development contains this specific information? [closed]

    - by Brett Ryan
    I've read several books on iOS development and Objective-C, however what a lot of them teach is how to work with interfaces and all contain the model inside the view controller, i.e. a UITableViewController based view will simply have an NSArray as it's model. I'm interested in what the best practices are for designing the structure of an application. Specifically I'm interested in best practices for the following: How to separate a model from the view controller. I think I know how to do this by simply replacing the NSArray style example with a specific model object, however what I do not know how to do is alert the view when the model changes. For example in .NET I would solve this by conforming to INotifyPropertyChanged and databinding, and similarly with Java I would use PropertyChangeListener. How to create a service model for my domain objects. For example I want to learn the best way to create a service for a hypothetical Widget object to manage an internal DB and also services for communicating with remote endpoints. I need to learn the best ways to do this in a way that interface components can subscribe to events such as widgetUpdated. These services should be singleton classes and some how dependency injected into model/controller objects. Books I've read so far are: Programming in Objective-C (4th Edition) Beginning iOS 5 Development: Exploring the iOS SDK The iOS 5 Developer's Cookbook: Expanded Electronic Edition: Essentials and Advanced Recipes for iOS Programmers Learn Objective-C on the Mac: For OS X and iOS I've also purchased the following updated books but not yet read them. The Core iOS 6 Developer's Cookbook (4th edition Programming in Objective-C (5th Edition) I come from a Java and C# background with 15 years experience, I understand that many of the ways I would do things in these languages may not fit to the ObjC way of developing applications. Would someone be able to provide me with the book on this topic containing this specific subject matter?

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  • Is the June 2010 DX SDK really the latest?

    - by Ryan
    I have not been involved in game development, using the DirectX SDK, since around 2008. From the looks of it, the June 2010 release, of the DirectX SDK, is still the latest release. This release is more than two years ago, based on the name. Is this still the latest release, or has there been a naming convention change and I am missing something newer? I've seen mention of it being rolled into a Windows SDK, so I am confused and figured I would come here to ask. Thanks

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  • How to filter a funnel by product?

    - by Ryan
    Let's say I'm tracking a conversion like the following: View product > Customize > Finish order When I push the the above events, I also push a product ID and name attached to it, hoping that I could segment by that, but I can't figure out how. I want to view the conversion per product, not generally. Does anyone know if this is possible with Google Analytics? If not, please suggest other solutions.

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  • How will closures in Java impact the Java Community?

    - by Ryan Delucchi
    It is one of the most talked about features planned for Java: Closures. Many of us have been longing for them. Some of us (including I) have grown a bit impatient and have turned to scripting languages to fill the void. But, once closures have finally arrived to Java: how will they effect the Java Community? Will the advancement of VM-targetted scripting languages slow to a crawl, stay the same, or acclerate? Will people flock to the new closure syntax, thus turning Java code-bases all-around into more functionally structured implementations? Will we only see closures sprinkled in Java throughout? What will be the effect on tool/IDE support? How about performance? And finally, what will it mean for Java's continued adoption, as a language, compared with other languages that are rising in popularity? To provide an example of one of the latest proposed Java Closure syntax specs: public interface StringOperation { String invoke(String s); } // ... (new StringOperation() { public invoke(String s) { new StringBuilder(s).reverse().toString(); } }).invoke("abcd"); would become ... String reversed = { String s => new StringBuilder(s).reverse().toString() }.invoke("abcd"); [source: http://tronicek.blogspot.com/2007/12/closures-closure-is-form-of-anonymous_28.html]

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  • After 10.10 -> 11.04 upgrade, can only login via Classic (No Effects)

    - by Ryan P.
    Yesterday I upgraded from 10.10 to 11.04, everything seemed to go okay until immediately after login: the desktop goes into a "corrupted" looking state (similar to having too high resolution set). I can see some kind of movement by moving the mouse around/right clicking, and can enter text terminals via ctrl + alt + f1 It does this in both plain "Ubuntu" and "Ubuntu Classic", and only seems to login/startup properly with Ubuntu Classic (No Effects). I have checked my video card (Radeon X600) and run the unity support test which passes with all "yes" results (Unity supported: yes): /usr/lib/nux/unity_support_test -p I have tried re-installing my Ubuntu desktop: rm -rf .gnome .gnome2 .gconf .gconfd .metacity sudo apt-get remove ubuntu-desktop sudo apt-get install ubuntu-desktop With no success. I can workaround for now with Classic (No Effects), but I'd really like to find the root problem. Any suggestions on what else to try would be appreciated!

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  • What is the process of planning software called? Or what is the job title of someone who does software planning?

    - by Ryan
    For example, let's say a non-technical person comes to me with their rough initial specification. And I sit down with them over a couple weeks and help them hone, formalize and better plan the application that they want built. What is this called? Information architecture, software architecture, specification writing, software planning, requirements analysis? What is the best, most recognizable term for this?

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  • Lost power during upgrade, how do I recover?

    - by Ryan McClure
    I was attempting to update my 11.10 install to 12.04beta. During the install step, I accidentally lost power to my laptop (the power cable came unplugged) and it shut down. Whenever I go to boot now, I can select my install via Grub and it loads up to where the sign-in should happen, but I get a display that looks like what you see as soon as you shut down. It looks like it locks after checking for the battery. Is there anyway, with or without Live media, to restore my machine's install/update to 12.04 but still keep my settings/applications/files?

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  • How to convince a non-technical client that their application spec needs to be simplified?

    - by Ryan
    Often times I am faced with the situation where a new client comes to me with an application that has literally 100s of unnecessary features and it is quite clear that things need to be drastically simplified for the project to have any chance of succeeding. How do you convince the client to take a more MVP approach and simplify? edit: So the current top answer is to provide the client with a time/cost estimate for the huge application. I'm not too fond of this answer because it doesn't address the real problem with this situation. And that is - it's a bad practice to spec out a massive application and then try and build it from the get go. I feel much more comfortable initially building a small, simple MVP foundation. And then adding small features to that foundation one by one. So how do I convince the client to approach building software in this way?

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  • Does anyone know of a simple (free?) feature request tracking system we could use internally for sales people?

    - by Ryan
    I sometimes hear about pain points of customers using our app from sales people, but there really isn't a good way for us to currently keep track of these. I was going to write one myself but figured I would ask first. I was thinking something so simple it would literally just be a small form for adding a new feature, and then it would appear in the list, like stackexchange questions. Then users can upvote them, or even record each time a user complains about something related to the request so we can order them in priority based on real data. Then I can easily go look every few days and see what's going on. That's really it, nothing more complicated than that. Know of anything?

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  • After 10.10 -> 11.04 upgrade, can only login via Classic (No Effects)

    - by Ryan P.
    Yesterday I upgraded from 10.10 to 11.04, everything seemed to go okay until immediately after login: the desktop goes into a "corrupted" looking state (similar to having too high resolution set). I can see some kind of movement by moving the mouse around/right clicking, and can enter text terminals via ctrl + alt + f1 It does this in both plain "Ubuntu" and "Ubuntu Classic", and only seems to login/startup properly with Ubuntu Classic (No Effects). I have checked my video card (Radeon X600) and run the unity support test which passes with all "yes" results (Unity supported: yes): /usr/lib/nux/unity_support_test -p I have tried re-installing my Ubuntu desktop: rm -rf .gnome .gnome2 .gconf .gconfd .metacity sudo apt-get remove ubuntu-desktop sudo apt-get install ubuntu-desktop With no success. I can workaround for now with Classic (No Effects), but I'd really like to find the root problem. Any suggestions on what else to try would be appreciated!

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  • Case studies for successful service (project) based software development businesses without constant overtime from its employees [closed]

    - by Ryan Taylor
    I work for an IT company that is primarily services (project) based rather than product based. All software engineers are salaried. The company has set new expectations that everyone should work 48 hours per week instead of 40. Note, this isn't occasional overtime due to crunches. This is the new 40. The reasoning is that this enables the company to provide benefits to its employees such as monetary incentives and training because the company is more profitable. more hours worked = more billable hours = larger profit I understand the need for profitability and the occasional crunch time and have put in the extra hours when it was needed and beneficial to the project. However, I am also very sensitive to work life balance and have raised my concerns about the the new expectation. My employer is open to other methods to increase profitability so I hold hope that we can turn things around before it becomes a horrible place to work. How does a services based company become more profitable without increasing the number of hours expected from it's salaried employees? Are there any case studies showing the pros and cons of consistent overtime? Are there any case studies for a successful service based business model (for software development companies) that does not require consistent overtime from its employees?

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  • Second Monitor Unable to Display at any Resolution

    - by Ryan Sharp
    After connecting the second monitor, the only way to get it to work is with 'mirror', which isn't what I want it for. If I select a display resolution for it, I get the following error: requested position/size for CRTC 148 is outside the allowed limit: position=(1908, 0), size=(1024, 768), maximum=(1920, 1920) I'm on 12.04, with AMD HD Radeon 6950, Post-update drivers. I appreciate anybodies help with this. Thanks.

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  • Multiple ToggleButton image with different highlight image in WPF

    - by Ryan
    I am very new to WPF and needed some pointers as to why this is not working correctly. I am trying to make a maximize button that will change to a restore button when clicked. I thought a toggle button with 2 different styles that would be changed in the code behind could work. I am first trying to get the maximize button working and have ran into a problem. I get the error 'System.Windows.Controls.Image' is not a valid value for the 'System.Windows.Controls.Image.Source' property on a Setter. in my xaml. I seem to be not understanding something completely. Any help would be most helpful :) Ryan <Style x:Key="Maximize" TargetType="{x:Type ToggleButton}"> <Style.Resources> <Image x:Key="MaxButtonImg" Source="/Project;component/Images/maxbutton.png" /> <Image x:Key="MaxButtonHighlight" Source="/Project;component/Images/maxbutton-highlight.png" /> </Style.Resources> <Setter Property="ContentTemplate"> <Setter.Value> <Image> <Image.Style> <Style TargetType="{x:Type Image}"> <Setter Property="Source" Value="{DynamicResource MaxButtonImg}"/> <Style.Triggers> <Trigger Property="IsMouseOver" Value="True"> <Setter Property="Source" Value="{DynamicResource MaxButtonHighlight}"/> </Trigger> </Style.Triggers> </Style> </Image.Style> </Image> </Setter.Value> </Setter> </Style> <ToggleButton Name="MaxButton" Width="31" Height="31" BorderThickness="0" Click="MaxButton_Click" Margin="0,0,10,0" Tag="Max" Style="{DynamicResource Maximize}" /> My code behind would do something simple like this: private void MaxButton_Click(object sender, RoutedEventArgs e) { ToggleButton tg = (ToggleButton)sender; if ( tg.IsChecked == true) { tg.Style = (Style)FindResource("Restore"); this.WindowState = WindowState.Maximized; } else { tg.Style = (Style)FindResource("Maximize"); this.WindowState = WindowState.Normal; } }

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  • Sortie de Qt 5 RC, avec une restructuration de la documentation

    Sortie de Qt 5 alpha La première version majeure du Qt Project autonome se concentre sur les performances et les capacités graphiques La version 5 de Qt vient de sortir en version alpha. Cette version est la première version majeure depuis que Qt est devenu autonome avec la création du Qt Project. Beaucoup de personnes ont contribué à cette nouvelle version, pas uniquement des développeurs de chez Nokia. Les différents modules ont été regroupés en deux catégories, les essentiels, installés par défaut, et les add-ons, installés à la demande. L'objectif de cette version alpha est de récupérer les retours des utilisateurs, principalement sur les modules essentiels. Lars Knoll, le responsable...

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  • Sortie de Qt 5 beta, cette préversion montre l'achèvement de la modularisation du framework

    Sortie de Qt 5 alpha La première version majeure du Qt Project autonome se concentre sur les performances et les capacités graphiques La version 5 de Qt vient de sortir en version alpha. Cette version est la première version majeure depuis que Qt est devenu autonome avec la création du Qt Project. Beaucoup de personnes ont contribué à cette nouvelle version, pas uniquement des développeurs de chez Nokia. Les différents modules ont été regroupés en deux catégories, les essentiels, installés par défaut, et les add-ons, installés à la demande. L'objectif de cette version alpha est de récupérer les retours des utilisateurs, principalement sur les modules essentiels. Lars Knoll, le responsable...

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  • Sortie de Qt 5 Beta 2, la liste des modules disponibles avec la version finale est décidée

    Sortie de Qt 5 alpha La première version majeure du Qt Project autonome se concentre sur les performances et les capacités graphiques La version 5 de Qt vient de sortir en version alpha. Cette version est la première version majeure depuis que Qt est devenu autonome avec la création du Qt Project. Beaucoup de personnes ont contribué à cette nouvelle version, pas uniquement des développeurs de chez Nokia. Les différents modules ont été regroupés en deux catégories, les essentiels, installés par défaut, et les add-ons, installés à la demande. L'objectif de cette version alpha est de récupérer les retours des utilisateurs, principalement sur les modules essentiels. Lars Knoll, le responsable...

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  • WPF DataTemplateKey can not find ListBox key

    - by Ryan
    I am fairly new to WPF and am having trouble getting the DataTemplateKey to find my ListBox. <Window.Resources> <ControlTemplate x:Key="FocusTemplate" > <Rectangle Fill="Azure" Width="290" Height="55" /> </ControlTemplate> <Style x:Key="FocusStyle" TargetType="{x:Type Control}"> <Setter Property="Template" Value="{StaticResource FocusTemplate}"/> </Style> <Style TargetType="ListBoxItem"> <EventSetter Event="GotFocus" Handler="ListItem_GotFocus"></EventSetter> </Style> <DataTemplate DataType="{x:Type TextBlock}"> </DataTemplate> <DataTemplate x:Key="CustomListData" DataType="{x:Type ListBox}"> <Border BorderBrush="Black" BorderThickness="1" Margin="-2,0,0,-1"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="55*" /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="*" /> </Grid.ColumnDefinitions> <Grid.RenderTransform> <TransformGroup> <ScaleTransform ScaleX="1" ScaleY="1"/> <SkewTransform AngleX="0" AngleY="0"/> <RotateTransform Angle="0"/> <TranslateTransform X="0" Y="0"/> </TransformGroup> </Grid.RenderTransform> <!--<ScrollViewer x:Name="PART_ContentHost" />--> <TextBox Width="290" TextAlignment="Left" VerticalContentAlignment="Center" BorderThickness="0" BorderBrush="Transparent" Foreground="#FF6FB8FD" FontSize="18" FocusVisualStyle="{StaticResource FocusStyle}" Name="editingBox" TextWrapping="Wrap" Text="{Binding .}" Grid.Column="1" Grid.Row="1" MinHeight="55" Cursor="Hand" IsReadOnly="True" > <TextBox.Background> <LinearGradientBrush EndPoint="0,1" StartPoint="0,0"> <LinearGradientBrush.RelativeTransform> <TransformGroup> <ScaleTransform CenterX="0.5" CenterY="0.5"/> <SkewTransform CenterX="0.5" CenterY="0.5"/> <RotateTransform Angle="0" CenterX="0.5" CenterY="0.5"/> <TranslateTransform/> </TransformGroup> </LinearGradientBrush.RelativeTransform> <GradientStop Color="#FF2D4984"/> <GradientStop Color="#FF182D56" Offset="0.042"/> </LinearGradientBrush> </TextBox.Background> </TextBox> </Grid> </Border> </DataTemplate> <Style TargetType="{x:Type ListBox}"> <Setter Property="ItemTemplate" Value="{StaticResource CustomListData }" /> <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Disabled" /> </Style> </Window.Resources> <Window.DataContext> <ObjectDataProvider ObjectType="{x:Type local:ImageLoader}" MethodName="LoadImages" /> </Window.DataContext> <ListBox ItemsSource="{Binding}" Width="320" Background="#FF021422" BorderBrush="#FF1C4B79"> <ListBox.Resources> <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}">Transparent</SolidColorBrush> </ListBox.Resources> </ListBox> The following code will find a TextBlock var key = new System.Windows.DataTemplateKey(typeof(TextBlock)); var r = (DataTemplate)this.FindResource(key); However, when I change the type to ListBox, the key can not be found. What have I missed? Thanks Ryan

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  • And the Winners of Fusion Middleware Innovation Awards in Data Integration are…

    - by Irem Radzik
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} At OpenWorld, we announced the winners of Fusion Middleware Innovation Awards 2012. Raymond James and Morrison Supermarkets were selected for the data integration category for their innovative use of Oracle’s data integration products and the great results they have achieved. In this blog I would like to briefly introduce you to these award winning projects. Raymond James is a diversified financial services company, which provides financial planning, wealth management, investment banking, and asset management. They are using Oracle GoldenGate and Oracle Data Integrator to feed their operational data store (ODS), which supports application services across the enterprise. A major requirement for their project was low data latency, as key decisions are made based on the data in the ODS. They were able to fulfill this requirement due to the Oracle Data Integrator’s integrated solution with Oracle GoldenGate. Oracle GoldenGate captures changed data from different systems including Oracle Database, HP NonStop and Microsoft SQL Server into a single data store on SQL Server 2008. Oracle Data Integrator provides data transformations for the ODS. Leveraging ODI’s integration with GoldenGate, Raymond James now sees a 9 second median latency (from source commit to ODS target commit). The ODS solution delivers high quality, accurate data for consuming applications such as Raymond James’ next generation client and portfolio management systems as well as real-time operational reporting. It enables timely information for making better decisions. There are more benefits Raymond James achieved with this implementation of Oracle’s data integration solution. The software developers and architects of this solution, Tim Garrod and Ryan Fonnett, have told us during their presentation at OpenWorld that they also reduced application complexity significantly while improving developer productivity through trusted operational services. They were able to utilize CDC to generate alerts for business users, and for applications (for example for cache hydration mechanisms). One cool innovation example among many in this project is that using ODI's flexible architecture, Tim and Ryan could build 24/7 self-healing processes. And these processes have hardly failed. Integration processes fixes the errors itself. Pretty amazing; and a great solution for environments that need such reliability and availability. (You can see Tim and Ryan’s photo with the Innovation Award above.) The other winner of this year in the data integration category, Morrison Supermarkets, is the UK’s 4th largest grocery retailer. The company has been migrating all their legacy applications on to a new-world application set based on Oracle and consolidating all BI on to a single Oracle platform. The company recently implemented Oracle Exadata as the data warehouse engine and uses Oracle Business Intelligence EE. Their goal with deploying GoldenGate and ODI was to provide BI data to the enterprise in a way that it also supports operational decision making requirements from a wide range of Oracle based ERP applications such as E-Business Suite, PeopleSoft, Oracle Retail Suite. They use GoldenGate’s log-based change data capture capabilities and Oracle Data Integrator to populate the Oracle Retail Data Model. The electronic point of sale (EPOS) integration solution they built processes over 80 million transactions/day at busy periods in near real time (15 mins). It provides valuable insight to Retail and Commercial teams for both intra-day and historical trend analysis. As I mentioned in yesterday’s blog, the right data integration platform can transform the business. Here is another example: The point-of-sale integration enabled the grocery chain to optimize its stock management, leading to another award: Morrisons won the Grocer 33 award in 2012 - beating all other major UK supermarkets in product availability. Congratulations, Morrisons,on another award! Celebrating the innovation and the success of our customers with Oracle’s data integration products was definitely a highlight of Oracle OpenWorld for me. I look forward to hearing more from Raymond James, Morrisons, and the other customers that presented their data integration projects at OpenWorld, on how they are creating more value for their organizations.

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  • WPF Button Image only showing in last control

    - by Ryan
    Hello All! I am fairly new to WPF and am probably missing something simple here. If I have 3 controls, only the last control will show the OriginalImage that I specify. Any help would be most appreciated. Thanks Ryan Main Window <Grid> <Grid.RowDefinitions> <RowDefinition Height="200*"/> <RowDefinition Height="60" /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="85" /> <ColumnDefinition Width="85" /> <ColumnDefinition Width="85" /> <ColumnDefinition Width="85" /> <ColumnDefinition Width="300" /> </Grid.ColumnDefinitions> <Grid Grid.Row="1"> <but:ListButton OriginalImage="/CustomItemsPanel;component/ListBox/Images/add.png" DisableImage="/CustomItemsPanel;component/ListBox/Images/addunselect.png" /> </Grid > <Grid Grid.Row="1" Grid.Column="1" > <but:ListButton OriginalImage="/CustomItemsPanel;component/ListBox/Images/add.png" DisableImage="/CustomItemsPanel;component/ListBox/Images/addunselect.png" /> </Grid > <Grid Grid.Row="1" Grid.Column="2" > <but:ListButton OriginalImage="/CustomItemsPanel;component/ListBox/Images/add.png" DisableImage="/CustomItemsPanel;component/ListBox/Images/addunselect.png" /> </Grid> </Grid> Control XAML <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:CustomItemsPanel.ListButton"> <LinearGradientBrush x:Key="ButtonBackground" EndPoint="0.5,1" StartPoint="0.5,0"> <LinearGradientBrush.GradientStops> <GradientStop Color="#FF0E3D70"/> <GradientStop Color="#FF001832" Offset="1"/> </LinearGradientBrush.GradientStops> </LinearGradientBrush> <LinearGradientBrush x:Key="ButtonBackgroundMouseOver" EndPoint="0.5,1" StartPoint="0.5,0"> <LinearGradientBrush.GradientStops> <GradientStop Color="#FF1E62A1" /> <GradientStop Color="#FF0A3C6D" Offset="1"/> </LinearGradientBrush.GradientStops> </LinearGradientBrush> <LinearGradientBrush x:Key="ButtonBackgroundSelected" EndPoint="0.5,1" StartPoint="0.5,0"> <LinearGradientBrush.GradientStops> <GradientStop Color="Red" /> <GradientStop Color="#FF0A2A4C" Offset="1"/> </LinearGradientBrush.GradientStops> </LinearGradientBrush> <Style x:Key="Toggle" TargetType="{x:Type Button}"> <Setter Property="Content"> <Setter.Value> <Image> <Image.Style> <Style TargetType="{x:Type Image}"> <Setter Property="Source" Value="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:ListButton}}, Path=OriginalImage}"/> <Style.Triggers> <Trigger Property="IsEnabled" Value="False"> <Setter Property="Source" Value="{Binding Path=DisableImage, RelativeSource={RelativeSource TemplatedParent}}"/> </Trigger> </Style.Triggers> </Style> </Image.Style> </Image> </Setter.Value> </Setter> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type Button}"> <Grid Cursor="Hand"> <Border Name="back" Margin="0,1,0,0" Background="{StaticResource ButtonBackground}"> <ContentPresenter VerticalAlignment="Center" HorizontalAlignment="Center" x:Name="content" /> </Border> <Border BorderThickness="1" BorderBrush="#FF004F92"> <Border BorderThickness="0,0,1,0" BorderBrush="#FF101D29" /> </Border> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsMouseOver" Value="True" > <Setter TargetName="back" Property="Background" Value="{StaticResource ButtonBackgroundMouseOver}"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style TargetType="{x:Type local:ListButton}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type local:ListButton}"> <Button Style="{StaticResource Toggle}" /> </ControlTemplate> </Setter.Value> </Setter> </Style> </ResourceDictionary> Control Code Behind public class ListButton : Control { public static readonly DependencyProperty MouseOverImageProperty; public static readonly DependencyProperty OriginalImageProperty; public static readonly DependencyProperty DisableImageProperty; static ListButton() { DefaultStyleKeyProperty.OverrideMetadata(typeof(ListButton), new FrameworkPropertyMetadata(typeof(ListButton))); MouseOverImageProperty = DependencyProperty.Register("MouseOverImage", typeof(ImageSource), typeof(ListButton), new UIPropertyMetadata(null)); OriginalImageProperty = DependencyProperty.Register("OriginalImage", typeof(ImageSource), typeof(ListButton), new UIPropertyMetadata(null)); DisableImageProperty = DependencyProperty.Register("DisableImage", typeof(ImageSource), typeof(ListButton), new UIPropertyMetadata(null)); } public ImageSource MouseOverImage { get { return (ImageSource)GetValue(MouseOverImageProperty); } set { SetValue(MouseOverImageProperty, value); } } public ImageSource OriginalImage { get { return (ImageSource)GetValue(OriginalImageProperty); } set { SetValue(OriginalImageProperty, value); } } public ImageSource DisableImage { get { return (ImageSource)GetValue(DisableImageProperty); } set { SetValue(DisableImageProperty, value); } } }

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  • WPF Infinite loop in references found while processing the Template

    - by Ryan
    I am pretty new to WPF and am getting this error after my mouse is over my custom listbox item. Error: Infinite loop in references found while processing the Template for an element named '' of type 'System.Windows.Controls.TextBox'. <Window.Resources> <ControlTemplate x:Key="MouseOverFocusTemplate" > <Grid> <Grid.RowDefinitions> <RowDefinition Height="55*" /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="*" /> </Grid.ColumnDefinitions> <TextBox Width="290" TextAlignment="Left" VerticalContentAlignment="Center" BorderThickness="0" BorderBrush="Transparent" Foreground="#FF6FB8FD" FontSize="24" TextWrapping="Wrap" Text="{Binding .}" Grid.Column="1" Grid.Row="1" MinHeight="55" Cursor="Hand" IsReadOnly="True" FontFamily="Arial" > <TextBox.Background> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="#FF013B73" Offset="0.501"/> <GradientStop Color="#FF091F34"/> <GradientStop Color="#FF014A8F" Offset="0.5"/> <GradientStop Color="#FF003363" Offset="1"/> </LinearGradientBrush> </TextBox.Background> </TextBox> </Grid> </ControlTemplate> <Style x:Key="MouseOverFocusStyle" TargetType="{x:Type TextBox}"> <Setter Property="Template" Value="{StaticResource MouseOverFocusTemplate}"/> </Style> <ControlTemplate x:Key="LostFocusTemplate" > <Grid> <Grid.RowDefinitions> <RowDefinition Height="55*" /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="*" /> </Grid.ColumnDefinitions> <TextBox Width="290" TextAlignment="Left" VerticalContentAlignment="Center" BorderThickness="0" BorderBrush="Transparent" Foreground="#FF6FB8FD" FontSize="24" TextWrapping="Wrap" Text="{Binding .}" Grid.Column="1" Grid.Row="1" MinHeight="55" Cursor="Hand" IsReadOnly="True" FontFamily="Arial" > <TextBox.Background> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <LinearGradientBrush.RelativeTransform> <TransformGroup> <ScaleTransform CenterX="0.5" CenterY="0.5"/> <SkewTransform CenterX="0.5" CenterY="0.5"/> <RotateTransform CenterX="0.5" CenterY="0.5"/> <TranslateTransform/> </TransformGroup> </LinearGradientBrush.RelativeTransform> <GradientStop Color="#FF091F34" Offset="1"/> <GradientStop Color="#FF002F5C" Offset="0.4"/> </LinearGradientBrush> </TextBox.Background> </TextBox> </Grid> </ControlTemplate> <Style x:Key="LostFocusStyle" TargetType="{x:Type TextBox}"> <Setter Property="Template" Value="{StaticResource LostFocusTemplate}"/> </Style> <ControlTemplate x:Key="GotFocusTemplate" > <Grid> <Grid.RowDefinitions> <RowDefinition Height="55*" /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="*" /> </Grid.ColumnDefinitions> <TextBox Width="290" TextAlignment="Left" VerticalContentAlignment="Center" BorderThickness="0" BorderBrush="Transparent" Foreground="#FFE38E27" FontSize="24" TextWrapping="Wrap" Text="{Binding .}" Grid.Column="1" Grid.Row="1" MinHeight="55" Cursor="Hand" IsReadOnly="True" FontFamily="Arial" > <TextBox.Background> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="Black" Offset="0.501"/> <GradientStop Color="#FF091F34"/> <GradientStop Color="#FF002F5C" Offset="0.5"/> </LinearGradientBrush> </TextBox.Background> </TextBox> </Grid> </ControlTemplate> <Style x:Key="GotFocusStyle" TargetType="{x:Type TextBox}"> <Setter Property="Template" Value="{StaticResource GotFocusTemplate}"/> </Style> <Style TargetType="ListBoxItem"> <EventSetter Event="GotFocus" Handler="ListItem_GotFocus"></EventSetter> <EventSetter Event="LostFocus" Handler="ListItem_LostFocus"></EventSetter> <EventSetter Event="Mouse.MouseMove" Handler="ListItem_MouseOver"></EventSetter> </Style> <DataTemplate DataType="{x:Type TextBlock}"> </DataTemplate> <DataTemplate x:Key="CustomListData" DataType="{x:Type ListBoxItem}"> <Border BorderBrush="Black" BorderThickness="1" Margin="-2,0,0,-1"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="55*" /> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="*" /> </Grid.ColumnDefinitions> <Grid.RenderTransform> <TransformGroup> <ScaleTransform ScaleX="1" ScaleY="1"/> <SkewTransform AngleX="0" AngleY="0"/> <RotateTransform Angle="0"/> <TranslateTransform X="0" Y="0"/> </TransformGroup> </Grid.RenderTransform> <!--<ScrollViewer x:Name="PART_ContentHost" />--> <TextBox Width="290" TextAlignment="Left" VerticalContentAlignment="Center" BorderThickness="0" BorderBrush="Transparent" Foreground="#FF6FB8FD" FontSize="24" FocusVisualStyle="{StaticResource GotFocusStyle}" TextWrapping="Wrap" Text="{Binding .}" Grid.Column="1" Grid.Row="1" MinHeight="55" Cursor="Hand" IsReadOnly="True" FontFamily="Arial" > <TextBox.Background> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <LinearGradientBrush.RelativeTransform> <TransformGroup> <ScaleTransform CenterX="0.5" CenterY="0.5"/> <SkewTransform CenterX="0.5" CenterY="0.5"/> <RotateTransform CenterX="0.5" CenterY="0.5"/> <TranslateTransform/> </TransformGroup> </LinearGradientBrush.RelativeTransform> <GradientStop Color="#FF091F34" Offset="1"/> <GradientStop Color="#FF002F5C" Offset="0.4"/> </LinearGradientBrush> </TextBox.Background> </TextBox> </Grid> </Border> </DataTemplate> <Style TargetType="{x:Type ListBox}"> <Setter Property="ItemTemplate" Value="{StaticResource CustomListData }" /> <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Disabled" /> </Style> </Window.Resources> <Window.DataContext> <ObjectDataProvider ObjectType="{x:Type local:ImageLoader}" MethodName="LoadImages" /> </Window.DataContext> <ListBox ItemsSource="{Binding}" Width="320" Background="#FF021422" BorderBrush="#FF1C4B79"> <ListBox.Resources> <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}">Transparent</SolidColorBrush> </ListBox.Resources> </ListBox> The code behind for the mouse over event is as follows private void ListItem_MouseOver(object sender, RoutedEventArgs e) { e.Handled = true; FrameworkElement element = e.OriginalSource as FrameworkElement; if (element != null) { while (VisualTreeHelper.GetParent(element) != null) { element = VisualTreeHelper.GetParent(element) as FrameworkElement; TextBox item = element as TextBox; if (item != null) { item.Style = (Style)item.FindResource("MouseOverFocusStyle"); return; } } } } What am I missing? Is there an easier way to do this ? Thanks in advance Ryan

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