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  • How do you track third-party software licenses?

    - by emddudley
    How do you track licenses for third-party libraries that you use in your software? How did you vet the licenses? Sometimes licenses change or libraries switch licenses--how do you stay up to date? At the moment I've got an Excel spreadsheet with worksheets for third-party software, licenses, and the projects we use them on (organized like a relational database). It seems to work OK, but I think it will go out-of-date pretty quickly.

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  • What ever happened to the Defense Software Reuse System (DSRS)?

    - by emddudley
    I've been reading some papers from the early 90s about a US Department of Defense software reuse initiative called the Defense Software Reuse System (DSRS). The most recent mention of it I could find was in a paper from 2000 - A Survey of Software Reuse Repositories Defense Software Repository System (DSRS) The DSRS is an automated repository for storing and retrieving Reusable Software Assets (RSAs) [14]. The DSRS software now manages inventories of reusable assets at seven software reuse support centers (SRSCs). The DSRS serves as a central collection point for quality RSAs, and facilitates software reuse by offering developers the opportunity to match their requirements with existing software products. DSRS accounts are available for Government employees and contractor personnel currently supporting Government projects... ...The DoD software community is trying to change its software engineering model from its current software cycle to a process-driven, domain-specific, architecture-based, repository-assisted way of constructing software [15]. In this changing environment, the DSRS has the highest potential to become the DoD standard reuse repository because it is the only existing deployed, operational repository with multiple interoperable locations across DoD. Seven DSRS locations support nearly 1,000 users and list nearly 9,000 reusable assets. The DISA DSRS alone lists 3,880 reusable assets and has 400 user accounts... The far-term strategy of the DSRS is to support a virtual repository. These interconnected repositories will provide the ability to locate and share reusable components across domains and among the services. An effective and evolving DSRS is a central requirement to the success of the DoD software reuse initiative. Evolving DoD repository requirements demand that DISA continue to have an operational DSRS site to support testing in an actual repository operation and to support DoD users. The classification process for the DSRS is a basic technology for providing customer support [16]. This process is the first step in making reusable assets available for implementing the functional and technical migration strategies. ... [14] DSRS - Defense Technology for Adaptable, Reliable Systems URL: http://ssed1.ims.disa.mil/srp/dsrspage.html [15] STARS - Software Technology for Adaptable, Reliable Systems URL: http://www.stars.ballston.paramax.com/index.html [16] D. E. Perry and S. S. Popovitch, “Inquire: Predicate-based use and reuse,'' in Proceedings of the 8th Knowledge-Based Software Engineering Conference, pp. 144-151, September 1993. ... Is DSRS dead, and were there any post-mortem reports on it? Are there other more-recent US government initiatives or reports on software reuse?

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  • Plus signs appearing in Google searches

    - by emddudley
    Ever since Google implemented their new look at the beginning of May, I have been having trouble with their search engine changing all of the spaces in my query to plus signs. This behavior occurs when I use the search box in both Firefox and Internet Explorer. For example, if I search for google search plus signs I am taken to the following URL, where google+search+plus+signs is in the search box. http://www.google.com/search?q=google+search+plus+signs&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a However if I perform the search from google.com, I get taken to a different URL with google search plus signs as I'd expect: http://www.google.com/#hl=en&source=hp&q=google+search+plus+signs&aq=f&aqi=g1&aql=&oq=&gs_rfai=&fp=d2a3ca21987adb1 Do I need to update my browsers or something?

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  • What can be done in Windows 7 that can't be done in Windows XP?

    - by emddudley
    In Jeff Atwood's latest blog entry on Windows 7 he talks about getting people to move off Windows XP. What, specifically, can be done in Windows 7 that cannot be done in Windows XP? I'm not looking for usability or GUI improvements, unless they happen to significantly reduce the time that it takes to perform tasks that were previously prohibitively time consuming.

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  • SGEN doesn't work after upgrading from VS2008 to VS2010

    - by emddudley
    I just recently upgraded a VS2008/.NET 3.5 SP1 project to VS2010 and .NET 4. I have a post-build event which calls SGEN to generate the XmlSerializers assembly. Whenever I try to run it I get the following error. "C:\Program Files\Microsoft SDKs\Windows\v7.0A\bin\sgen.exe" /debug /force /verbose /c:"platform:x86" "C:\path\to\SomeAssembly.dll" Microsoft (R) Xml Serialization support utility [Microsoft (R) .NET Framework, Version 2.0.50727.3038] Copyright (C) Microsoft Corporation. All rights reserved. Error: An attempt was made to load an assembly with an incorrect format: c:\path\to\someassembly.dll. - Could not load file or assembly 'file:///c:\path\to\someassembly.dll' or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded. If you would like more help, please type "sgen /?". I get the same error running SGEN from the command line, but I can't figure out what the problem is. Any ideas?

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  • DirectX application doesn't work over Remote Desktop

    - by emddudley
    I have a WPF application which has a DirectX component within it. This component does not work over Remote Desktop--it just shows a corrupted image. The application works fine when not using Remote Desktop. In trying to debug the problem I installed the February 2010 DirectX SDK. Now, when I run the program on the computer with the SDK and Remote Desktop to it from a separate computer, the component works just fine. However the opposite does not work--trying to use the application over Remote Desktop when it is running on the computer without the DirectX SDK (it has the original problem with the corrupted image). I have already compared the loaded DLLs (using Process Explorer) between running the application on my SDK machine and non-SDK machine. They both are loading the same DLL versions. What else could be causing this behavior?

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  • What is NetFx in the Windows SDK?

    - by emddudley
    What is NetFx, in the context of the Windows SDK? What differentiates NetFx tools from the tools in the regular SDK bin directory? I noticed that the version of sgen.exe in C:\Program Files\Microsoft SDKs\Windows\v7.0A\bin\ was built against .NET 2.0, but the version in C:\Program Files\Microsoft SDKs\Windows\v7.0A\bin\NETFX 4.0 Tools\ was built against .NET 4.0.

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  • Secondary monitor bug: a problem in WPF or in the graphics driver?

    - by emddudley
    I have discovered a strange bug with my WPF application and I am trying to determine whether it is a problem with WPF or my graphics driver so that I can report it to the appropriate company. I have a Quadro FX 1700 with the latest drivers (197.54) on a Windows XP system, running a .NET 3.5 SP1 application. I have dual monitors, and when I maximize then minimize a child window of the main window on my primary monitor, the child window gets drawn on the secondary monitor as well. It appears in both places. I made a sample application (code is below) which induces this behavior. Start the application and ensure the main window is on your primary monitor. Double-click the main window. A green child window should appear. Click the green child window to maximize. Click the green child window to minimize. Can anyone else reproduce this problem? On my system the green child restores, but then it's drawn on both my primary and secondary monitors, rather than just the primary monitor. App.xaml <Application xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="DualMonitorBug.App" StartupUri="Shell.xaml" /> App.xaml.cs using System.Windows; namespace DualMonitorBug { public partial class App : Application { } } Shell.xaml <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="DualMonitorBug.Shell" Title="Shell" Height="480" Width="640" MouseDoubleClick="ShowDialog" /> Shell.xaml.cs using System.Windows; using System.Windows.Input; namespace DualMonitorBug { public partial class Shell : Window { public Shell() { InitializeComponent(); } private void ShowDialog(object sender, MouseButtonEventArgs e) { DialogWindow dialog = new DialogWindow(); dialog.Owner = this; dialog.Show(); } } } DialogWindow.xaml <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="DualMonitorBug.DialogWindow" Title="Dialog Window" Height="240" Width="320" AllowsTransparency="True" Background="Green" MouseLeftButtonDown="ShowHideDialog" WindowStyle="None" /> DialogWindow.xaml.cs using System.Windows; using System.Windows.Input; namespace DualMonitorBug { public partial class DialogWindow : Window { public DialogWindow() { InitializeComponent(); } private void ShowHideDialog(object sender, MouseButtonEventArgs e) { this.WindowState = (this.WindowState == WindowState.Normal) ? WindowState.Maximized : WindowState.Normal; } } }

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  • How to avoid coupling when using regions in Composite WPF

    - by emddudley
    I have an application designed using Microsoft's Composite Application Library. My shell has several regions defined so that I can inject content from separate modules. I'm looking for a design pattern that will reduce the coupling that these regions introduce. In all examples I have seen, regions are defined and accessed using a string in a static class in the infrastructure project.: <ItemsControl cal:RegionManager.RegionName="{x:Static inf:RegionNames.TabRegion}"> public static class RegionNames { public const string TabRegion = "TabRegion"; } This introduces an dependency on the shell from the infrastructure project, because the infrastructure project is now defining some of the shell's capabilities. The CAL RegionManager throws an exception if you attempt to access a region which is not defined, so I must ensure that the infrastructure and shell projects are kept in sync. Is there a way to isolate the shell's regions so that they are defined only within the shell (no region names in the infrastructure project)? Is there a way to make regions optional, so that shells can be swapped out even if they don't have all the same regions? (An example: One shell has menu and toolbar regions, another only has the menu... modules should be able to inject into the toolbar if it's available, without failing when it's not)

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  • Preventing a WPF Expander from expanding when header is clicked

    - by emddudley
    How can I prevent a WPF Expander from expanding when its header is clicked? I would like my Expander to expand or collapse only when the expand button itself is clicked. I imagine the answer has something to do with canceling a bubbled event. If possible I would like to implement the solution in XAML while avoiding retemplating the entire Expander.

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  • Trouble animating RadialGradientBrush in WPF

    - by emddudley
    I'm trying to animate a RadialGradientBrush in my application. I get the super helpful exception: Additional information: 'System.Windows.Style' value cannot be assigned to property 'Style' of object 'System.Windows.Controls.Border'. '[Unknown]' property does not point to a DependencyObject in path '(0).(1).[0].(2)'. Error at object 'System.Windows.Style' in markup file 'Eng.Modules.Core;component/system/grid/systemgridview.xaml' Line 252 Position 51. I know it's something wrong with the indirect property targeting or partial path qualification in my DoubleAnimation's Storyboard.TargetProperty attribute. Any ideas? <Border> <Border.Resources> <RadialGradientBrush x:Key="SomeBrush"> <RadialGradientBrush.GradientStops> <GradientStop Color="White" Offset="0" /> <GradientStop Color="Gold" Offset="1" /> </RadialGradientBrush.GradientStops> </RadialGradientBrush> </Border.Resources> <Border.Style> <Style TargetType="{x:Type Border}"> <Style.Triggers> <DataTrigger Binding="{Binding Path=IsEnabled, RelativeSource={RelativeSource Self}}" Value="True"> <Setter Property="Background" Value="{StaticResource SomeBrush}" /> <DataTrigger.EnterActions> <BeginStoryboard x:Name="SomeStoryBoard"> <Storyboard> <!-- RIGHT HERE --> <DoubleAnimation Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[0].(GradientStop.Offset)" From="0" To="1" Duration="0:0:1" RepeatBehavior="Forever" AutoReverse="True" /> </Storyboard> </BeginStoryboard> </DataTrigger.EnterActions> <DataTrigger.ExitActions> <RemoveStoryboard BeginStoryboardName="SomeStoryBoard" /> </DataTrigger.ExitActions> </DataTrigger> </Style.Triggers> </Style> </Border.Style> </Border>

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  • WPF binding fails with custom add and remove accessors for INotifyPropertyChanged.PropertyChanged

    - by emddudley
    I have a scenario which is causing strange behavior with WPF data binding and INotifyPropertyChanged. I want a private member of the data binding source to handle the INotifyPropertyChanged.PropertyChanged event. I get some exceptions which haven't helped me debug, even when I have "Enable .NET Framework source stepping" checked in Visual Studio's options: A first chance exception of type 'System.ArgumentException' occurred in mscorlib.dll A first chance exception of type 'System.ArgumentException' occurred in mscorlib.dll A first chance exception of type 'System.InvalidOperationException' occurred in PresentationCore.dll Here's the source code: XAML <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="TestApplication.MainWindow" DataContext="{Binding RelativeSource={RelativeSource Self}}" Height="100" Width="100"> <StackPanel> <CheckBox IsChecked="{Binding Path=CheckboxIsChecked}" Content="A" /> <CheckBox IsChecked="{Binding Path=CheckboxIsChecked}" Content="B" /> </StackPanel> </Window> Normal implementation works public partial class MainWindow : Window, INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged; public bool CheckboxIsChecked { get { return this.mCheckboxIsChecked; } set { this.mCheckboxIsChecked = value; PropertyChangedEventHandler handler = this.PropertyChanged; if (handler != null) handler(this, new PropertyChangedEventArgs("CheckboxIsChecked")); } } private bool mCheckboxIsChecked = false; public MainWindow() { InitializeComponent(); } } Desired implementation doesn't work public partial class MainWindow : Window, INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged { add { lock (this.mHandler) { this.mHandler.PropertyChanged += value; } } remove { lock (this.mHandler) { this.mHandler.PropertyChanged -= value; } } } public bool CheckboxIsChecked { get { return this.mHandler.CheckboxIsChecked; } set { this.mHandler.CheckboxIsChecked = value; } } private HandlesPropertyChangeEvents mHandler = new HandlesPropertyChangeEvents(); public MainWindow() { InitializeComponent(); } public class HandlesPropertyChangeEvents : INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged; public bool CheckboxIsChecked { get { return this.mCheckboxIsChecked; } set { this.mCheckboxIsChecked = value; PropertyChangedEventHandler handler = this.PropertyChanged; if (handler != null) handler(this, new PropertyChangedEventArgs("CheckboxIsChecked")); } } private bool mCheckboxIsChecked = false; } }

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  • Traditional loop versus Action delegate in C#

    - by emddudley
    After learning about the Action delegate in C# I've been looking for ways I can best use it in my code. I came up with this pattern: Action<string> DoSomething = (lSomething) => { // Do something }; DoSomething("somebody"); DoSomething("someone"); DoSomething("somewhere"); If I were to have used a traditional loop, it would look something like this: List<string> lSomeList = new List<string>(); lSomeList.Add("somebody"); lSomeList.Add("someone"); lSomeList.Add("somewhere"); foreach (string lSomething in lSomeList) { // Do something } Are there any appreciable differences between the two? To me they look equally easy to understand and maintain, but are there some other criteria I might use to distinguish when one might be preferred over the other?

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  • When to address managed heap fragmentation

    - by emddudley
    I was reading a blog entry by Josh Smith where he used a cache mechanism in order to "reduce managed heap fragmentation". His caching reduces the number of short-lived objects being created at the cost of slightly slower execution speed. How much of a problem is managed heap fragmentation in a managed language like C#? How can you diagnose if it's an issue? In what situations would you typically need to address it?

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  • Bubbling scroll events from a ListView to its parent

    - by emddudley
    In my WPF application I have a ListView whose ScrollViewer.VerticalScrollBarVisibility is set to Disabled. It is contained within a ScrollViewer. When I attempt to use the mouse wheel over the ListView, the outer ScrollViewer does not scroll because the ListView is capturing the scroll events. How can I force the ListView to allow the scroll events to bubble up to the ScrollViewer?

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  • Using Moq to set indexers in C#

    - by emddudley
    I'm having trouble figuring out how to set indexers in C# with Moq. The Moq documentation is weak, and I've done a lot of searching... what I'd like to do is similar in the solution to How to Moq Setting an Indexed property: var someClass = new Mock<ISomeClass>(); someClass.SetupSet(o => o.SomeIndexedProperty[3] = 25); I want to modify the above to work for any index and any value so I can just do something like this: someClass.Object.SomeIndexedProperty[1] = 5; Currently I have the following, which works great for the indexed property getter, but if I ever set the value Moq ignores it: var someValues = new int[] { 10, 20, 30, 40 }; var someClass = new Mock<ISomeClass>(); someClass.Setup(o => o.SomeIndexedProperty[It.IsAny<int>()]) .Returns<int>(index => someValues[index]); // Moq doesn't set the value below, so the Assert fails! someClass.Object.SomeIndexedProperty[3] = 25; Assert.AreEqual(25, someClass.Object.SomeIndexedProperty[3]);

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  • Is RGBRast included with .NET 3.5 SP1?

    - by emddudley
    I need to use the RGBRast software renderer for a DirectX application I'm developing. Currently I'm just including the DLL with my install. I have read a few places that it is also included with .NET 3.5 SP1. Is this true? If so, where is the DLL located? This redistributable component can be downloaded from: http://www.microsoft.com/downloads/details.aspx?familyid=57d03491-6c49-4429-bff7-130408b5f410

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  • [NUnit+Moq] Guidelines for using Assert versus Verify

    - by emddudley
    I'm new to unit testing, and I'm learning how to use NUnit and Moq. NUnit provides Assert syntax for testing conditions in my unit tests, while Moq provides some Verify functions. To some extent these seem to provide the same functionality. How do I know when it's more appropriate to use Assert or Verify? Maybe Assert is better for confirming state, and Verify is better for confirming behavior (Classical versus Mockist)?

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  • Return statements for all functions

    - by emddudley
    How common is it for coding style guidelines to include a requirement that all functions include a return statement (including functions which return void)? To avoid being subjective or argumentative, I'd like answers which can name specific companies or open-source projects which have this requirement. If you haven't ever come across this coding style guideline, or you have a resource (book, online article) which discusses it, that would be useful as well. Thanks!

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