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• asp.net mvc radioButtonFor in forEach

  - by George

  Does anyone know why this isn't working? any source code changes would be great. <% foreach (var i in Model.talentImages) { %> <div style="padding:15px;"> <img src="<%: i.uri %>" width="95" height="84" alt="" style="float:left; padding:0px 20px 0px 0px" /> <div style="padding:30px 10px 10px 10px"> <%: Html.RadioButtonFor("group-" + i.uriId.ToString(), i.isApproved)%> Approved <br /> <%: Html.RadioButtonFor("group-" + i.uriId.ToString(), i.isApproved)%> Deny <br /> </div> <hr width="0"/> <%= Html.RadioButton("isProfileePicGroup", i.isProfilePic, false)%> Make Profile Picture <br /> </div> <hr /> <%} %>

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• No attachable databases were found on the SQL Server

  - by George

  I'm fumbling my way through a basic installation of TFS 2010... I see that the TFS_Configuration and Tfs_DefaultCollection databases were successfully created on my local machine. The installation seemed to go smoothly, but it looks like I need to configure a Team Project Collect before I can start using it. Yet, the wizard seems unable to locate the appropriate database that I expected should have been created during the setup process. The server name defaulted properly to the name of the local machine. Did I miss a step somewhere?

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• vs2010: trying to debug javascript using Chrome: this is not a valid location for a breakpoint

  - by George

  Everytime I try to set a debug point in Javascript, eietehr while in Design mode or while runniong, I get the error: trying to set a breakpoint in javascript: this is not a valid location for a breakpoint When I go to VS2010's Options screen under Debugging Just In Time, I see that Managed, Native & Script are selected, I also placed the line "debugger;" in the first line of a javascript function that is called but the break is never hit. In the Web.Config (although this is probably for compiled code:): <compilation debug="true I'm reliving this problem on a new machine...Can u help? Edit: I left out a huge detail: Google Chrome is my default browser. (I am trying to debug a Chrome-only error.) Must I resort to other debug tools other than VS2010? I am thinking that it should work. Too hopeful, eh?

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• NSURLSession and amazon S3 uploads

  - by George Green

  I have an app which is currently uploading images to amazon S3. I have been trying to switch it from using NSURLConnection to NSURLSession so that the uploads can continue while the app is in the background! I seem to be hitting a bit of an issue. The NSURLRequest is created and passed to the NSURLSession but amazon sends back a 403 - forbidden response, if I pass the same request to a NSURLConnection it uploads the file perfectly. Here is the code that creates the response: NSString *requestURLString = [NSString stringWithFormat:@"http://%@.%@/%@/%@", BUCKET_NAME, AWS_HOST, DIRECTORY_NAME, filename]; NSURL *requestURL = [NSURL URLWithString:requestURLString]; NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:requestURL cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData timeoutInterval:60.0]; // Configure request [request setHTTPMethod:@"PUT"]; [request setValue:[NSString stringWithFormat:@"%@.%@", BUCKET_NAME, AWS_HOST] forHTTPHeaderField:@"Host"]; [request setValue:[self formattedDateString] forHTTPHeaderField:@"Date"]; [request setValue:@"public-read" forHTTPHeaderField:@"x-amz-acl"]; [request setHTTPBody:imageData]; And then this signs the response (I think this came from another SO answer): NSString *contentMd5 = [request valueForHTTPHeaderField:@"Content-MD5"]; NSString *contentType = [request valueForHTTPHeaderField:@"Content-Type"]; NSString *timestamp = [request valueForHTTPHeaderField:@"Date"]; if (nil == contentMd5) contentMd5 = @""; if (nil == contentType) contentType = @""; NSMutableString *canonicalizedAmzHeaders = [NSMutableString string]; NSArray *sortedHeaders = [[[request allHTTPHeaderFields] allKeys] sortedArrayUsingSelector:@selector(caseInsensitiveCompare:)]; for (id key in sortedHeaders) { NSString *keyName = [(NSString *)key lowercaseString]; if ([keyName hasPrefix:@"x-amz-"]){ [canonicalizedAmzHeaders appendFormat:@"%@:%@\n", keyName, [request valueForHTTPHeaderField:(NSString *)key]]; } } NSString *bucket = @""; NSString *path = request.URL.path; NSString *query = request.URL.query; NSString *host = [request valueForHTTPHeaderField:@"Host"]; if (![host isEqualToString:@"s3.amazonaws.com"]) { bucket = [host substringToIndex:[host rangeOfString:@".s3.amazonaws.com"].location]; } NSString* canonicalizedResource; if (nil == path || path.length < 1) { if ( nil == bucket || bucket.length < 1 ) { canonicalizedResource = @"/"; } else { canonicalizedResource = [NSString stringWithFormat:@"/%@/", bucket]; } } else { canonicalizedResource = [NSString stringWithFormat:@"/%@%@", bucket, path]; } if (query != nil && [query length] > 0) { canonicalizedResource = [canonicalizedResource stringByAppendingFormat:@"?%@", query]; } NSString* stringToSign = [NSString stringWithFormat:@"%@\n%@\n%@\n%@\n%@%@", [request HTTPMethod], contentMd5, contentType, timestamp, canonicalizedAmzHeaders, canonicalizedResource]; NSString *signature = [self signatureForString:stringToSign]; [request setValue:[NSString stringWithFormat:@"AWS %@:%@", self.S3AccessKey, signature] forHTTPHeaderField:@"Authorization"]; Then if I use this line of code: [NSURLConnection connectionWithRequest:request delegate:self]; It works and uploads the file, but if I use: NSURLSessionUploadTask *task = [self.session uploadTaskWithRequest:request fromFile:[NSURL fileURLWithPath:filePath]]; [task resume]; I get the forbidden error..!? Has anyone tried uploading to S3 with this and hit similar issues? I wonder if it is to do with the way the session pauses and resumes uploads, or it is doing something funny to the request..? One possible solution would be to upload the file to an interim server that I control and have that forward it to S3 when it is complete... but this is clearly not an ideal solution! Any help is much appreciated!! Thanks!

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• Getting a null reference exception exporting a slightly complex rdlc report to excel

  - by George Handlin

  Have an issue in exporting a slightly complex report to excel from an rdlc. Exporting a simple tabular report works fine, but getting a null reference exception with a more complex one. As is usually the case, it works on the server in the development environment, but not in the test environment. The server in the development environment has iis, sql and sql reporting services on it and test only has iis (I didn't set them up). I'm guessing there is something that gets installed with SSRS that is not installed with just the report viewer. The report has several parameters going into it and a few generic lists going in for datasources. Some tables for display as well as a list. Working with the 2005 version. Exception follows: [NullReferenceException: Object reference not set to an instance of an object.] Microsoft.ReportingServices.Rendering.ExcelRenderer.ExcelRenderer.RenderPageLayout(PageLayout pageLayout, Int32& currentPageNumber, Stack& stack) +91 Microsoft.ReportingServices.Rendering.ExcelRenderer.ExcelRenderer.RenderPageCollection(PageCollection pageCollection, Int32& currentPageNumber, Stack& stack, PageLayout& lastPageLayout) +607 Microsoft.ReportingServices.Rendering.ExcelRenderer.ExcelRenderer.GenerateWorkSheets() +150 Microsoft.ReportingServices.Rendering.ExcelRenderer.ExcelRenderer.GenerateMainSheet() +358 Microsoft.ReportingServices.Rendering.ExcelRenderer.ExcelRenderer.RenderExcelWorkBook(CreateAndRegisterStream createAndRegisterStream) +158 Microsoft.ReportingServices.Rendering.ExcelRenderer.ExcelRenderer.ProcessReport(CreateAndRegisterStream createAndRegisterStream) +385 Microsoft.ReportingServices.Rendering.ExcelRenderer.ExcelRenderer.Render(Report report, NameValueCollection reportServerParameters, NameValueCollection deviceInfo, NameValueCollection clientCapabilities, EvaluateHeaderFooterExpressions evaluateHeaderFooterExpressions, CreateAndRegisterStream createAndRegisterStream) +230 [ReportRenderingException: An error occurred during rendering of the report.] Microsoft.ReportingServices.Rendering.ExcelRenderer.ExcelRenderer.Render(Report report, NameValueCollection reportServerParameters, NameValueCollection deviceInfo, NameValueCollection clientCapabilities, EvaluateHeaderFooterExpressions evaluateHeaderFooterExpressions, CreateAndRegisterStream createAndRegisterStream) +296 Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RenderSnapshot(IRenderingExtension renderer, CreateReportChunk createChunkCallback, RenderingContext rc, GetResource getResourceCallback) +1124 [WrapperReportRenderingException: An error occurred during rendering of the report.] Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RenderSnapshot(IRenderingExtension renderer, CreateReportChunk createChunkCallback, RenderingContext rc, GetResource getResourceCallback) +1681 Microsoft.Reporting.LocalService.RenderWithDataCache(PreviewItemContext itemContext, ParameterInfoCollection reportParameters, IEnumerable dataSources, DatasourceCredentialsCollection credentials, IRenderingExtension renderer, ReportProcessing repProc, CreateAndRegisterStream createStreamCallback, ReportRuntimeSetup runtimeSetup) +1693 Microsoft.Reporting.LocalService.Render(PreviewItemContext itemContext, Boolean allowInternalRenderers, ParameterInfoCollection reportParameters, IEnumerable dataSources, DatasourceCredentialsCollection credentials, CreateAndRegisterStream createStreamCallback, ReportRuntimeSetup runtimeSetup, ProcessingMessageList& warnings) +227 Microsoft.Reporting.WebForms.LocalReport.InternalRender(String format, Boolean allowInternalRenderers, String deviceInfo, CreateAndRegisterStream createStreamCallback, Warning[]& warnings) +235 [LocalProcessingException: An error occurred during local report processing.] Microsoft.Reporting.WebForms.LocalReport.InternalRender(String format, Boolean allowInternalRenderers, String deviceInfo, CreateAndRegisterStream createStreamCallback, Warning[]& warnings) +276 Microsoft.Reporting.WebForms.LocalReport.InternalRender(String format, Boolean allowInternalRenderers, String deviceInfo, String& mimeType, String& encoding, String& fileNameExtension, String[]& streams, Warning[]& warnings) +189 Microsoft.Reporting.WebForms.LocalReport.Render(String format, String deviceInfo, String& mimeType, String& encoding, String& fileNameExtension, String[]& streams, Warning[]& warnings) +28 Microsoft.Reporting.WebForms.LocalReportControlSource.RenderReport(String format, String deviceInfo, NameValueCollection additionalParams, String& mimeType, String& fileNameExtension) +52 Microsoft.Reporting.WebForms.ExportOperation.PerformOperation(NameValueCollection urlQuery, HttpResponse response) +153 Microsoft.Reporting.WebForms.HttpHandler.ProcessRequest(HttpContext context) +202 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +303 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

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• Crystal Reports - "A string is required here" formula error.

  - by George Mauer

  I have a command line utility that generates one simple crystal report. I recently updated the project from .NET 1.1 to .NET 3.5 using the Visual Studio 2008 migrator and am now getting an error that I had never received before. The problem is in the work_order formula which is as follows: stringVar nvl_ship_wrk_id := "0"; stringVar nvl_ship_wrk_seq := "0"; If Not IsNull({FeedBOLInput.ShipWrkId}) Then nvl_ship_wrk_id := {FeedBOLInput.ShipWrkId}; If Not IsNull({FeedBOLInput.ShipWrkSeq}) Then nvl_ship_wrk_seq := {FeedBOLInput.ShipWrkSeq}; nvl_ship_wrk_id & " - " & nvl_ship_wrk_seq; And the error is: - InnerException {"A string is required here. Error in File C:\\...\\temp_88c50533-02c6-4973-ae06-ed0ab1a603ac {0D5E96FB-038A-41C5-93A7-A9D199961377}.rpt: Error in formula <work_order>. 'stringVar nvl_ship_wrk_id := \"0\"; ' A string is required here."} System.Exception {System.Runtime.InteropServices.COMException} Does anyone have any idea what this can be? I'm out of clues. The dataset is coming in properly - and the error seems to point to a row which merely initializes a variable.

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• WPF touch and slide/drag animation

  - by George

  I'm trying to create a pretty simple WPF interface, and from what I know this should be mostly possible using pure XAML. What I know I have a pretty basic understanding of WPF so far, however I have a decent grasp on XAML. I know or can work out how to put content in these panels. This isn't the topic of this question. What I don't know I don't know how to animate this interface. I'm not very proficient at binding, however again, that's not the topic of this question. The topic of this question is what would be the best way to animate panels 1-4 (images below) so that they may be dragged (via touch) into view. The number of panels here may be static for the purpose of this question. The panels (1-4) can be stack panels, grids or whatever; their content isnt important. What is important is the container that would contain all 4 panels. The complication in this animation is the other two containers here (Item One/TODO), as they're in the way of a smooth animation. If it makes this question simpler, the touch features can be ignored for now, and a simple button push can slide the containers across. One Two

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• How to add a background image only on devexpress skinned mdi form.

  - by Bakas George

  I have a Delphi application skinned by devexpress skins and i want to add a background image on mdi form only without applying it also to childforms. I don't want to use multiple skin controllers.

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• Bug with audio reCaptcha in safari

  - by George Crawford

  Hi all, Can other Safari users please test http://recaptcha.net/learnmore.html for me, to see if the audio reCaptcha plays properly? On my machine, I can only hear the audio if I click the Download sound as MP3 link. I also don't get the spoken introduction at all. It works OK in Firefox and Chrome. I was alerted to this bug on my own development site, using the Zend Service for ReCaptcha. However, if it's broken on the official site, then I guess it's not a Zend bug. There don't seem to be any JavaScript errors. Any ideas?

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• RenderPartial a view from another controller (and in another folder)

  - by George

  Hey MVC experts. I two database entities that i need to represent and i need to output them in a single page. I have something like this Views Def ViewA ViewB Test ViewC I want to ViewC to display ViewA, which displays ViewB. Right now i'm using something like this: // View C <!-- bla --> <% Html.RenderPartial(Url.Content("../Definition/DefinitionDetails"), i); %> // View A <!-- bla --> <% Html.RenderPartial(Url.Content("../Definition/DefinitionEditActions")); %> Is there a better to do this? I find that linking with relative pathnames can burn you. Any tips? Any chance I can make somehtiing like... Html.RenderPartial("Definition","DefinitionDetails",i); ? Thanks for the help

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• MySql - Get row number on select

  - by George

  Can I run a select statement and get the row number if the items are sorted? I have a table like this: mysql> describe orders; +-------------+---------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +-------------+---------------------+------+-----+---------+----------------+ | orderID | bigint(20) unsigned | NO | PRI | NULL | auto_increment | | itemID | bigint(20) unsigned | NO | | NULL | | +-------------+---------------------+------+-----+---------+----------------+ I can then run this query to get the number of orders by ID: SELECT itemID, COUNT(*) as ordercount FROM orders GROUP BY itemID ORDER BY ordercount DESC; This gives me a count of each itemID in the table like this: +--------+------------+ | itemID | ordercount | +--------+------------+ | 388 | 3 | | 234 | 2 | | 3432 | 1 | | 693 | 1 | | 3459 | 1 | +--------+------------+ I want to get the row number as well, so I could tell that itemID 388 is the first row, 234 is second, etc (essentially the ranking of the orders, not just a raw count). I know I can do this in java when I get the result set back, but I was wondering if there was a way to handle it purely in SQL.

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• Problems with tk85.dll when shutting down an application that embeds the Python interpreter.

  - by George Edison

  My C++ application embeds the Python interpreter, but seems to be having some trouble when it shuts down. Right after the main window closes, I get a segmentation fault (this is Windows, but we'll call it a segmentation fault anyway). The stack trace is below: #0 102AD580 tk85!Tk_MainWindow() (C:\Users\Nathan\Documents\Projects\PowerPad 1.3\bin\Debug\lib\tk85.dll:??) #1 103082DD tk85!XSetStipple() (C:\Users\Nathan\Documents\Projects\PowerPad 1.3\bin\Debug\lib\tk85.dll:??) #2 102214A3 ??() (C:\Users\Nathan\Documents\Projects\PowerPad 1.3\bin\Debug\lib\tk85.dll:??) #3 10220000 ??() (??:??) #4 00000000 ??() (??:??) Where would I even begin to debug this problem?

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• NHibernate: Mapping different dynamic components based on a discriminator

  - by George Mauer

  My domain entities each have a set of "fixed" properties and a set of "dynamic" properties which can be added at runtime. I handle this by using NHibernate's dynamic-component functionality. public class Product { public virtual Guid Id { get; } public virtual string Name { get; set;} public virtual IDictionary DynamicComponents { get; } } Now I have the following situation public class Customer { public virtual Guid Id { get; } public virtual string Type { get; set;} public virtual IDictionary DynamicProperties { get; } } Where a CustomerType is something like "Online" or "InPerson". Furthermore an Online customer has dynamic properties "Name" and "IPAddress" and an InPerson Customer has dynamic properties "Name" and "Salesman". Which customer types are available and the extra properties on them are configured in meta-data which is used to generate hbm files on application start. I could figure out some way to knock this together using an intermediate DTO layer, but is there any support in NHibernate for this scenario? The only difficulty seems to be that all the different "types" of customer map to the same Customer class.

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• Could not load type from assembly error

  - by George Mauer

  I have written the following simple test in trying to learn Castle Windsor's Fluent Interface: using NUnit.Framework; using Castle.Windsor; using System.Collections; using Castle.MicroKernel.Registration; namespace WindsorSample { public class MyComponent : IMyComponent { public MyComponent(int start_at) { this.Value = start_at; } public int Value { get; private set; } } public interface IMyComponent { int Value { get; } } [TestFixture] public class ConcreteImplFixture { [Test] public void ResolvingConcreteImplShouldInitialiseValue() { IWindsorContainer container = new WindsorContainer(); container.Register(Component.For<IMyComponent>().ImplementedBy<MyComponent>().Parameters(Parameter.ForKey("start_at").Eq("1"))); IMyComponent resolvedComp = container.Resolve<IMyComponent>(); Assert.AreEqual(resolvedComp.Value, 1); } } } When I execute the test through TestDriven.NET I get the following error: System.TypeLoadException : Could not load type 'Castle.MicroKernel.Registration.IRegistration' from assembly 'Castle.MicroKernel, Version=1.0.3.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc'. at WindsorSample.ConcreteImplFixture.ResolvingConcreteImplShouldInitialiseValue() When I execute the test through the NUnit GUI I get: WindsorSample.ConcreteImplFixture.ResolvingConcreteImplShouldInitialiseValue: System.IO.FileNotFoundException : Could not load file or assembly 'Castle.Windsor, Version=1.0.3.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc' or one of its dependencies. The system cannot find the file specified. If I open the Assembly that I am referencing in Reflector I can see its information is: Castle.MicroKernel, Version=1.0.3.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc and that it definitely contains Castle.MicroKernel.Registration.IRegistration What could be going on? I should mention that the binaries are taken from the latest build of Castle though I have never worked with nant so I didn't bother re-compiling from source and just took the files in the bin directory. I should also point out that my project compiles with no problem.

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• Deploying a Hello Word Silverlight app to IIS5, Win XP

  - by George

  Besides adding these File Types to IIS and installing the .NET framework 4.0 to the Web Server, what else do I need to do to get a Hello Word Silver Light web app to work? is there a separate Silverlight installation needed? Though the web site works when I deploy locally, I am getting the following error after deploying to a remote web server: Line: 54 Error: Unhandled Error in Silverlight Application Code: 2104 Category: InitializeError Message: Could not download the Silverlight application. Check web server settings

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• How to convert an object into a double?

  - by george t.

  I am working on VS C# on the following code, which converts an user input math expression and computes it. MSScriptControl.ScriptControl sc = new MSScriptControl.ScriptControl(); sc.Language = "VBScript"; sc.ExecuteStatement( "function pi\n" + "pi = 3.14159265\n" + "end function"); sc.ExecuteStatement( "function e\n" + "e = exp(1)\n" + "end function"); expression = textBox1.Text.ToString(); expression = expression.Replace("x", i.ToString()); object y = sc.Eval(expression); string k = y.ToString(); double result = double.Parse(k); While this outputs onto the console with the correct result, I want to use the values to make a graph of the function user inputs and it's not doing it correctly. Thank you for your help.

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• Update Panel error: Control with the ID "xxx" could not be found in the UpdatePanel

  - by George

  I have a composite drop down calendar user control that consists of a textbox and and calendar image and a validation control. I expose a property called "TextBox" on the usercontrol which returns a reference to the textbox used within the control. This is the textbox that the user enters the date into. In the ASPX page, I have an instance of this usercontrol: <uc1:DropDownCalendar ID="dtmDateFirstEntry" runat="server" Required="True" /> In my code behind, I want to detect when a user has tabbed off of the textbox and, using an UpdatePanel, referesh an appropriate message depending on the date that was specified. Elsewhere in the ASPX page I have this: <asp:UpdatePanel ID="upIntendedStay" runat="server"> <ContentTemplate> <asp:Label ID="Label4" runat="server" Text="Update this text from server" CssClass="ErrorText"></asp:Label> </ContentTemplate> </asp:UpdatePanel> Here's what I do in the code behind: If Not Me.IsPostBack Then dtmDateFirstEntry.TextBox.AutoPostBack = True Dim trigger As New AsyncPostBackTrigger trigger.ControlID = dtmDateFirstEntry.TextBox.ClientID trigger.EventName = "onChange" upIntendedStay.Triggers.Add(trigger) End If When the page runs and I view the source, I see something like this: <input id="ctl00_phPageContent_dtmDateFirstEntry_txtDate" class="DefaultTextBox" name="ctl00$phPageContent$dtmDateFirstEntry$txtDate" onchange="javascript:setTimeout('__doPostBack(\'ctl00$phPageContent$dtmDateFirstEntry$txtDate\',\'\')', 0)" onkeypress="if (WebForm_TextBoxKeyHandler(event) == false) return false;" style="width: 112px;" type="text" value="Mar-29-2010" /> <input id="ctl00_phPageContent_dtmDateFirstEntry_imgDate" name="ctl00$phPageContent$dtmDateFirstEntry$imgDate" src="images/calendar.JPG" style="border-width: 0px;" type="image" />&nbsp; When I run it, I get this error: A control with ID 'ctl00_phPageContent_dtmDateFirstEntry_txtDate' could not be found for the trigger in UpdatePanel 'upIntendedStay'. I didn't think that the trigger control had to be within the UpdatePanel. I thought that was the whole point of adding the trigger. How do I refresh this update panel changes to the text in the date usercontrol. Next I will have to add other triggers to trigger the refreshing of the Update Panel from other controls scattered across the page, so clearly all of the trigger sources cannot be within the UpdatePanel.

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• TIBCO - BusinessWorks - Get path of the process dynamically

  - by George

  I am developing a process that will read and send an image in an e-mail. This image is a folder within this process. The problem is: how do I get the path where the process is running? Something like a 'Server.MapPath' that returns the image path in the File System. Thanks in advance.

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• Draw simple circle in XNA

  - by George Johnston

  I want to draw a 2d, filled, circle. I've looked everywhere and cannot seem to find anything that will even remotely help me draw a circle. I simply want to specify a height and width and location on my canvas. Anyone know how? Thanks!

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• Offloading to HLSL/GPU without displaying?

  - by George R

  As far as I know, certain mathematical functions like FFTs and perlin noise, etc. can be much faster when done on the GPU as a pixel shader. My question is, if I wanted to exploit this to calculate results and stream to bitmaps, could I do it without needing to actually display it in Silverlight or something? More specifically, I was thinking of using this for large terrain generation involving lots of perlin and other noises, and post-processing like high passes and deriving normals from heightmaps, etc, etc.

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• VS2010. Dropdownlist Autopostback works in IDE, not when deployed

  - by George

  I have a VS2010 RC ASP.NET web page,when a user changes the drop down selection on an auto postback dropdown, it refreshes a small grid and a few labels in various places on the page. I know wrapping a whole page in a big UpdatePanel control will cause horror from many of you, but that's what I did. I really didn't want a full page refresh and I didn't know how to update a table on the client side using Javascript and I figured it would be a big change. Suggestions for avoiding this are welcomed, but my main desire is to understand teh error I am getting. When I do the auto postbacks in the IDE, everything works fine, but if I deploy the code (IIS 5.5 on XP), the second auto postback works but the seconds one gives me his error. Ajax is one big nasty blackbox to me. Can someone help, please? Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ; InfoPath.1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; InfoPath.2; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; MS-RTC LM 8; MS-RTC EA 2; OfficeLiveConnector.1.4; OfficeLivePatch.1.3; .NET4.0C; .NET4.0E) Timestamp: Sun, 28 Mar 2010 17:23:23 UTC Message: Sys.WebForms.PageRequestManagerServerErrorException: Object reference not set to an instance of an object. Line: 796 Char: 13 Code: 0 URI: http://localhost/BESI/ScriptResource.axd?d=3HKc1zGdeSk2WM7LpI9tTpMQUN7bCfQaPKi6MHy3P9dace9kFGR5G-jymRLHm0uxZ0SqWlVSWl9vAWK5JiPemjSRfdtUq34Dd5fQ3FoIbiyQ-hcum21C-j06-c0YF7hE0&t=5f011aa5 Message: Sys.WebForms.PageRequestManagerServerErrorException: Object reference not set to an instance of an object. Line: 796 Char: 13 Code: 0 URI: http://localhost/BESI/ScriptResource.axd?d=3HKc1zGdeSk2WM7LpI9tTpMQUN7bCfQaPKi6MHy3P9dace9kFGR5G-jymRLHm0uxZ0SqWlVSWl9vAWK5JiPemjSRfdtUq34Dd5fQ3FoIbiyQ-hcum21C-j06-c0YF7hE0&t=5f011aa5 Message: Sys.WebForms.PageRequestManagerServerErrorException: Object reference not set to an instance of an object. Line: 796 Char: 13 Code: 0 URI: http://localhost/BESI/ScriptResource.axd?d=3HKc1zGdeSk2WM7LpI9tTpMQUN7bCfQaPKi6MHy3P9dace9kFGR5G-jymRLHm0uxZ0SqWlVSWl9vAWK5JiPemjSRfdtUq34Dd5fQ3FoIbiyQ-hcum21C-j06-c0YF7hE0&t=5f011aa5

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• Inversion of Control Container for PHP?

  - by George Mauer

  I am trying to code TDD style in PHP and one of my biggest stumbling blocks (other than lack of a decent IDE) is that I have to make my own hacked together IoC container just to inject all my mock objects properly. Has anyone used an Ioc container in php? All I've been able to find is PHP IOC on the ever-annoying phpclasses.org and it seems to have almost no documentation and not much of a following.

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• DevExpress ASP.NET MVC Combobox not showing the values

  - by Taskos George

  In my PartialView I add a grid with a column that I need to be a combobox in this way. settings.Columns.Add(column => { column.FieldName = "TheFieldName"; column.Caption = ""ACaption; column.ColumnType = MVCxGridViewColumnType.ComboBox; var comboBoxProperties = column.PropertiesEdit as ComboBoxProperties; comboBoxProperties.DataSource = ViewData["MyListOfObjects"]; comboBoxProperties.TextField = "Description"; comboBoxProperties.ValueField = "Description"; comboBoxProperties.ValueType = typeof(String); }); The ViewData is populated in the Index method of the Controller and I have checked that it is populated with objects that contain values. The Combobox in the PopupEditForm not showing anything. Any idea what could be wrong? Regards.

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• Python PyQt Timer Firmata

  - by George Cullins

  Hello. I am pretty new to python and working with firmata I am trying to play around with an arduino . Here is what I want to happen: Set arduino up with an LED as a digital out Set potentiometer to analog 0 Set PyQt timer up to update potentiometer position in application Set a threshold in PyQt to turn LED on (Analog in has 1024bit resolution, so say 800 as the threshold) I am using this firmata library : Link Here is the code that I am having trouble with: import sys from PyQt4 import QtCore, QtGui from firmata import * # Arduino setup self.a = Arduino('COM3') self.a.pin_mode(13, firmata.OUTPUT) # Create timer self.appTimer = QtCore.QTimer(self) self.appTimer.start(100) self.appTimer.event(self.updateAppTimer()) def updateAppTimer(self): self.analogPosition = self.a.analog_read(self, 0) self.ui.lblPositionValue.setNum() I am getting the error message: Traceback (most recent call last): File "D:\Programming\Eclipse\IO Demo\src\control.py", line 138, in myapp = MainWindow() File "D:\Programming\Eclipse\IO Demo\src\control.py", line 56, in init self.appTimer.event(self.updateAppTimer()) File "D:\Programming\Eclipse\IO Demo\src\control.py", line 60, in updateAppTimer self.analogPosition = self.a.analog_read(self, 0) TypeError: analog_read() takes exactly 2 arguments (3 given) If I take 'self' out I get the same error message but that only 1 argument is given What is python doing implicitly that I am not aware of? Blockquote

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• jQuery Validation, multiple form ids for same function

  - by George

  Hi have two forms with the exact same validation rules, but different ids that I'd like to combine into just one function. How can I do that? var validator = $("#ValidateForm1").validate({ errorPlacement: function(error, element) { if ( element.is(":radio") ) error.appendTo( element.parent().next().next() ); else if ( element.is(":checkbox") ) error.appendTo ( element.next() ); else error.appendTo( element.parent().next() ); } }); var validator = $("#validateForm2").validate({ errorPlacement: function(error, element) { if ( element.is(":radio") ) error.appendTo( element.parent().next().next() ); else if ( element.is(":checkbox") ) error.appendTo ( element.next() ); else error.appendTo( element.parent().next() ); } });

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