Entries for John

Captcha for new users? [Captcha for new users?]

John — Fri, 20 Feb 2009 09:07:24 GMT

Would is be possible to require a captcha for a users first 10 posts for instance?

Might be a useful spambuster, given that it's mostly bots on here I suspect.

in reply to Captcha for new users?

What triggers Vista's "XXX is not working"? [What triggers Vista's "XXX is not working"?]

John — Wed, 11 Feb 2009 18:08:17 GMT

Hi Guys.

Was just wondering if anybody could shed some light on what exactly causes vists to decide that a program is 'Not Working'?

I have an app that runs fine in Vista on my machine, but on my Boss's laptop, whenever he tries to open a report, vista instantly decides that the app is not working and shuts it down.

Any Ideas?

in reply to What triggers Vista's "XXX is not working"?

Easy Repro Bug: Server method 'GetPosts' failed [Easy Repro Bug: Server method 'GetPosts' failed]

John — Wed, 04 Feb 2009 07:43:55 GMT

If you look at one of the threads that has an 'In reply to' box, click on the DATE in the reply box.

You will get the above error.

in reply to Easy Repro Bug: Server method 'GetPosts' failed

wrapspace in my avatar comment [wrapspace in my avatar comment]

John — Sun, 01 Feb 2009 15:38:11 GMT

Why has *wrapspace* appeared in the text on the right?

in reply to *wrapspace* in my avatar comment

ADO.Net Entities / Associations [ADO.Net Entities / Associations]

John — Fri, 16 Jan 2009 09:30:14 GMT

Hi All.

I'm trying to create an EF model of a database.

Every table has a composite key, comprising of a column name unique to that table (e.g. SupplierID) and a SystemID.
This is so that multiple systems can run off one database without crossing data.

However I just can't get the entity framework designer to live happily with my composite keys.

I keep getting the error

Error 1 Error 111: Properties referred by the Principal Role Suppliers must be exactly identical to the key of the EntityType Database1Model.Suppliers referred to by the Principal Role in the relationship constraint for Relationship Database1Model.SuppliersProducts. Make sure all the key properties are specified in the Principal Role.
C:\Users\John\Documents\Visual Studio 2008\Projects\EfExample2\EfExample2\Model1.edmx 68 11 EfExample2

I will post a small example project shortly, just in case it's something I'm doing wrong.

in reply to ADO.Net Entities / Associations

User Badges [User Badges]

John — Thu, 08 Jan 2009 08:07:54 GMT

There are a few distinct groups of users on here - Designers, Developers, Power Users, Fanboys, Trolls....

What about the ability to show a gifs under each avatar showing which groups the user belongs to?

I'm only thinking something like 10*70 px, but at times it would help people communicate with each other, and possible be able to direct questions at a user that is likely to be able to help.

in reply to User Badges

Data Execution Prevention (DEP) Woes [Data Execution Prevention (DEP) Woes]

John — Mon, 05 Jan 2009 17:26:45 GMT

All of a sudden, my vista machine has decided that it does not like my programming style.

When I do a certain action in my program, DEP terminates my process (the action does involve a COM interop if that makes any diffy?)

I know what DEP is, and how to turn it off, but it will not turn off for my exe... it syas that it must run with DEP on.

Any suggestions?

in reply to Data Execution Prevention (DEP) Woes

C9 does not work in VS [C9 does not work in VS]

John — Mon, 22 Dec 2008 17:11:20 GMT

C9 does not work in the Visual Studio browser.

I just followed one of my start page links to the 10-4 video, and it seems not to support javascript at all, which meant that I could not view the silverlight video, nor could I click on the downloads link to get the wmv.

in reply to C9 does not work in VS

.Net inheritance and casting [.Net inheritance and casting]

John — Fri, 19 Dec 2008 12:05:38 GMT

I have a question about inheritance and casting.

Lets say for arguments sake I have a class Fruit, and a class 'Apple' that inherits from fruit.

I have a generic list of apples, and a method that returns Fruit.

obviously I can't just cast from fruit to apple.

so, in order to use the fruit that gets returned, and add it into the list, do I need to manually create the apple, and populate each and every property by hand before adding it to the list, or is there a better way?

in reply to .Net inheritance and casting

FF3: Reply / Edit / New thread not working [FF3: Reply / Edit / New thread not working]

John — Thu, 18 Dec 2008 15:10:23 GMT

It seems that in FF3, none of the site buttons are working.

IE7 is fine.

in reply to FF3: Reply / Edit / New thread not working

DiscountASP.net connectivity issues [DiscountASP.net connectivity issues]

John — Thu, 18 Dec 2008 14:28:36 GMT

Is anybody else using DiscountASP.Net having connectivity issues?

My site is pretty much unreachable, and the tracert is not looking too good.

5    23 ms    24 ms    23 ms vlan-959.er10.trf.ipc.kcom.com [10.102.59.6]
6    24 ms    24 ms    24 ms 195.50.119.129
7    24 ms    24 ms    24 ms ae-11-11.car1.Manchesteruk1.Level3.net [4.69.133
.97]
8    43 ms    35 ms    36 ms ae-4-4.ebr1.London1.Level3.net [4.69.133.102]
9    31 ms    35 ms    35 ms ae-1-100.ebr2.London1.Level3.net [4.69.132.118]

10   101 ms   101 ms   101 ms ae-41-41.ebr1.NewYork1.Level3.net [4.69.137.66]

11   101 ms   106 ms   107 ms ae-81-81.csw3.NewYork1.Level3.net [4.69.134.74]

12   114 ms   108 ms   107 ms ae-84-84.ebr4.NewYork1.Level3.net [4.69.134.121]

13   181 ms   178 ms   181 ms ae-2.ebr4.SanJose1.Level3.net [4.69.135.185]
14   171 ms   177 ms   180 ms ae-94-94.csw4.SanJose1.Level3.net [4.69.134.254]

15   181 ms   180 ms   179 ms ae-93-93.ebr3.SanJose1.Level3.net [4.69.134.237]

16   188 ms   179 ms   179 ms ae-2.ebr3.LosAngeles1.Level3.net [4.69.132.10]
17   182 ms   179 ms   180 ms ae-93-93.csw4.LosAngeles1.Level3.net [4.69.137.4
6]
18   179 ms   178 ms   180 ms ae-41-99.car1.LosAngeles1.Level3.net [4.68.20.19
5]
19   179 ms   179 ms   179 ms INTERNAP-NE.car1.LosAngeles1.Level3.net [4.71.14
0.54]
20   178 ms   178 ms   179 ms border1.po2-2g-bbnet2.ext1.lax.pnap.net [216.52.
255.86]
21     *        *      185 ms hostcollective-4.border1.lax.ext1.pnap.net [216.
52.253.94]
22   187 ms   187 ms     *     web149.discountasp.net [216.177.71.5]
23     *      179 ms   179 ms core2.t2-2-bbnet2.lax.pnap.net [216.52.255.66]
24   690 ms   697 ms   712 ms internap.LosAngelesEquinix.savvis.net [208.174.1
96.38]
25     *        *        *     Request timed out.
26     *      180 ms   179 ms cr1-bundle-pos-1.sanfrancisco.savvis.net [204.70
.197.30]
27     *      184 ms   185 ms web149.discountasp.net [216.177.71.5]

(I'm UK based BTW)

in reply to DiscountASP.net connectivity issues

ADO.Net DataServices ('Astoria') and ASP.Net auth [ADO.Net DataServices ('Astoria') and ASP.Net auth]

John — Fri, 28 Nov 2008 13:06:31 GMT

I am trying to implement a ADO.Net Data Service.

On the profile of every user that logs in to my site, there is a GroupID (int) field.

When somebody queries my data service, I want to know who they are, and what GroupID they belong to, so that I can Filter the results accordingly.

I know that to do this I need to implement a QueryInterceptor, but how do I get the profile information for the current user?

in reply to ADO.Net DataServices ('Astoria') and ASP.Net auth

Any good sources of free icons? [Any good sources of free icons?]

John — Wed, 26 Nov 2008 10:36:45 GMT

Hey all.

Does anybody know of a good source for Icons that are free for use in commercial apps?

All of the free icons sites I've seen have been free for personal use only...

in reply to Any good sources of free icons?

Querying XML in SQL Server. [Querying XML in SQL Server.]

John — Fri, 21 Nov 2008 10:10:33 GMT

Lets say I have a table with 2 columns, ID (int) and Data(nVarchar(Max))

In the data column, I have XML such as
[Code language="XML"]
<ResourceIds>
<ResourceId Type="System.Int32" Value="2" />
<ResourceId Type="System.Int32" Value="3" />
</ResourceIds>
[/Code]

How would I construct an SQL query to just pick out the rows where the data contains a resourceID with Value 3 for instance?

in reply to Querying XML in SQL Server.

Silverlight 2 in action / Silverlight 3 [Silverlight 2 in action / Silverlight 3]

John — Fri, 21 Nov 2008 08:10:07 GMT

For thos of you that are interested in seeing some nice implementations of SL2, Scott Guthrie has some nice examples on his blog.

I am particularly impressed by the AOL Mail one, but they all look pretty impressive.

in reply to Silverlight 2 in action / Silverlight 3

mmm.... spam :-) [mmm.... spam :-)]

John — Tue, 18 Nov 2008 12:36:38 GMT

Dim SplashScreen As Windows.SplashScreen = New Windows.SplashScreen("Splash.jpg")
SplashScreen.Show(True)

[/Code]

The splash screen displays correctly.

However, if the application is not active (e.g. I've clicked on another app whilst this one is starting up) then it throws the following exception;

System.ComponentModel.Win32Exception was unhandled
Message="The operation completed successfully"
Source="WindowsBase"
ErrorCode=-2147467259
NativeErrorCode=0
StackTrace:
       at MS.Win32.UnsafeNativeMethods.SetActiveWindow(HandleRef hWnd)
       at System.Windows.SplashScreen.Close(TimeSpan fadeoutDuration)
       at System.Windows.SplashScreen.<Show>b__0(Object splashObj)
       at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
       at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.DispatcherOperation.InvokeImpl()
       at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
       at System.Threading.ExecutionContext.runTryCode(Object userData)
       at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Windows.Threading.DispatcherOperation.Invoke()
       at System.Windows.Threading.Dispatcher.ProcessQueue()
       at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
       at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
       at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
       at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)
       at System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)
       at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
       at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
       at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.Run(ApplicationContext context)
       at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
       at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
       at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine)
       at App302.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 81
InnerException:

in reply to Problem with WPF splash screen in 3.5 SP1

Mem usage for .net programs [Mem usage for .net programs]

John — Fri, 31 Oct 2008 12:35:49 GMT

I have a small utility, whose sole job it to synchronise 2 databases periodically, and notify local programs if a table has changed.

In CLR Profiler, the app is reportedly using 6.7Mb of memory, however, Task manager reports > 180Mb of mem usage for the process.

One of my customers has seen this, and decided "It's a memory leak!" (despite the figure hardly changing over time / use), and therefore my boss is on my back asking why there is a mem leak and how do we stop it... (tried explaining that the app is not leaking... so he asked whether it was because I had 'tightened' it). Oh dear.

Is there anything I can do to reduce what Task manager reports?

in reply to Mem usage for .net programs

Initiating windows dial-up connection [Initiating windows dial-up connection]

John — Tue, 28 Oct 2008 18:19:31 GMT

Hello.

I have an app that needs to send some data up to the web every hour or so.

One of my clients wants to do this over GPRS, and has already set up the dial-up networking in windows.

He has also set the option to 'Always dial my default connection' in Internet Explorer's settings dialog.

However, when my app tries to contact the outside world, it fails to do so, but does not even attempt to make the dial-up connection as I expected it would.

Is there anything else I need to do to get it to dial the default connection if necessary?

in reply to Initiating windows dial-up connection

Copying xbox 360 content [Copying xbox 360 content]

John — Tue, 28 Oct 2008 18:13:53 GMT

Hey fellas.

I don't think this question is worthy of the techoff, so coffeehouse it is.

I've just got my new 360 from amazon as my old one has RROD'd

How can I copy the game saves and downloaded games etc over to the hard drive of the new one before I ship the old one back?

in reply to Copying xbox 360 content

Where should a Dependency Property be registered? [Where should a Dependency Property be registered?]

John — Fri, 24 Oct 2008 08:49:31 GMT

I have a WPF UserControl (Lets call it DisplayItem)

In the body of the class for DisplayItem, I register a DependencyProperty (lets call it displaytext)

Now, If I want to display 2 of these in a listbox, I run into a problem.
As soon as the second DisplayItem is created, I get an error when trying to register the DP, because a DP has already been registered with that name, for that type.

As far as I can see, registering all DPs at once (e.g. at app startup) is not an option, as I will end up with NullReference exceptions, because I will not be assigning the DP on each DisplayItem to an instance.

How do I do it?

in reply to Where should a Dependency Property be registered?

SQL or ASP time offset? [SQL or ASP time offset?]

John — Thu, 23 Oct 2008 20:36:49 GMT

Hey all.

I have a web app running on DiscountASP's U.S. Servers.

I am UK based.

When my desktop app sends its data to the web app, the datetimes seem to mess up.

Lets say a record is created here that says 9.24PM

When I view that record from the website, it says 1.24PM, which I assume is due to the time difference.

Is there a way I can set my application to use a time offset when reading the data? At the moment the web app is also consumed exclusively by UK clients.

in reply to SQL or ASP time offset?

Dependency Property: what am I doing wrong? [Dependency Property: what am I doing wrong?]

John — Tue, 21 Oct 2008 14:29:41 GMT

Hey all.

I have the following code;
[code language="VB"]
Imports System.Windows

Partial Public Class GoDutch
    Class GoDutchShare
        Dim dpShareText As DependencyProperty = DependencyProperty.Register("ShareText", GetType(String), GetType(GoDutchShare))
        Property ShareText() As String
            Get
                Return GetValue(dpShareText)
            End Get
            Set(ByVal value As String)
                SetValue(dpShareText, value)
            End Set
        End Property
    End Class
End Class
[/Code]

In VS, the GetValue and SetValue are underlined, with the error:    Reference to a non-shared member requires an object reference.

in reply to Dependency Property: what am I doing wrong?