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• Need direction in creating an application which generates a crud form

  - by AlteredConcept

  Hi all, I was wondering if anyone knew of any way i can implement an application which will do the following. Allow a user to specifiy a connection string to a sql db Allow a user to specify a table in the db Allow a user to specify columns from the specified table Generate Views & a Controller with Crud methods on the fly for the specified table columns in a subdirectory on the current web app. I'm aware that there are apps that currently do this (such as sharepoints list creation stuff), but i'd like to see how this was accomplished and recreate it for my own learning purposes. Thanks alot for any help

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• Drawbacks of WebFormsMVP?

  - by Tony_Henrich

  While ASP.NET MVC seems to be a viable technology praised by a lot of developers, I can't seem to find enough reasons to devote my energy and time for it. The main reason is that I don't find enough .NET jobs asking for it. Companies still use WebForms and it works just fine for them. I am not self employed where I get to choose the technology I like. I would rather use my time improve my skills in SilverLight, JQuery, Javascript, SQL, LINQ.. etc. Even Photoshop! So I got interested in webformsmvp.com. I get to still use WebForms and use better testing methods. Anyone who has experience with it can tell me what they didn't like about it?

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• iPhone: Howto get notified when an UIView becomes visible

  - by arne_

  Is there a way to get a notification, a callback or some other means to call a method whenever a UIView becomes visible for the user, i.e. when a UIScrollview is the superview of some UIViews, and the ViewController of such a UIView shall get notified when its view is now visible to the user? I am aware of the possible, but not so elegant solution of checking to which position the ScrollView scrolled (via UIScrollViewDelegate-methods) and compute if either one of the subviews is visible... But I'm looking for a more universal way of doing this.

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• How do I handle dojo datagrid cell updates so I can post them back automatically to the server?

  - by Raj

  I am using dojo datagrid to display my data. When the end user edit the cell values it should be updated in the server using ajax calls(when the focus goes out of the cell). Else, I should have a Edit & update/cancel buttons for each row to handle the same feature. But I don know how to place edit & update buttons inside the grid and capture their events. By default dojo updates only local the store value(client side). how can I save the updated cell values into the server? do we need to write any override methods to do so?? I am new to dojo. Any detailed explanation or sample codes would be much appreciated. Could anyone lend a hand to solve this issue?? Thank you Regards, Raj

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• Issue with child of custom Decorator class in WPF

  - by galacticgrug

  I need a custom border that renders a little differently than a normal border. I made a class that inherited from Decorator as follows class BetterBorder : Decorator { protected override Size ArrangeOverride(Size arrangeSize) { return arrangeSize; } protected override void OnRender(DrawingContext dc) { //these values are calculated elsewhere dc.DrawGeometry(backgroundBrush, borderPen, pathGeometry); } } //Properties and helper methods below this All of this works fine until I try to add a child to the control, the control can be added but is not visible and seems to be moved off BetterBorders visible client area. If I inherit from Border everything works fine, what am I missing?

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• Strange crashes on the iPad device with core graphics functions

  - by toastie

  I am getting a lot of strange EXC_BAD_ACCESS crashes on the iPad that only happen on the device and not in the simulator. I am assuming that they are somehow memory related, but I am not sure. They all happen with image context related functions. One strange example is using CGImageCreateWithImageInRect. For example, if i run through a bunch of UIImages and crop them with CGImageCreateWithImageInRect, it will always crash at specific arbitrary sizes. Like, if I crop them all to 200x200, it crashes out after processing 12 images. If i crop them to 210x210, it works no problem. The EXC_BAD_ACCESS happens inside of "memmove" called from "CGBlt_copyBytes". That is all the debugger shows me strangely enough. I can't see the callstack going up to any of my methods. All of this works fine in the simulator! I know this is all very vague, but if anyone has any ideas, they would be greatly appreciated.

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• How does Linq-to-Xml convert objects to strings?

  - by Eamon Nerbonne

  Linq-to-Xml contains lots of methods that allow you to add arbitrary objects to an xml tree. These objects are converted to strings by some means, but I can't seem to find the specification of how this occurs. The conversion I'm referring to is mentioned (but not specified) in MSDN. I happen to need this for javascript interop, but that doesn't much matter to the question. Linq to Xml isn't just calling .ToString(). Firstly, it'll accept null elements, and secondly, it's doing things no .ToString() implementation does: For example: new XElement("elem",true).ToString() == "<elem>true</elem>" //but... true.ToString() == "True" //IIRC, this is culture invariant, but in any case... true.ToString(CultureInfo.InvariantCulture) == "True" Other basic data types are similarly specially treated. So, does anybody know what it's doing and where that's described?

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• How can you centre an image within the image control in SQL Server Reporting Services 2008?

  - by Keith

  I have got an image in an image control on a report in SSRS 2008. The image is coming from an external source, and varies in width. I would like to centre the image within the control, but the image control does not have an equivalent of the text box's TextAlign property to allow right/left/center alignment to be done automatically. I have seen methods to dynamically calculate the amount of left padding as a hack to solve this, http://blogs.msdn.com/chrishays/archive/2004/10/27/CenteredImages.aspx, but the solution gives an error in SSRS 2008, perhaps not surprising given the age of the article. Has anybody got a solution to this for SSRS 2008?

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• Detecting if the user selected "All Users" or "Just Me" in a Custom Action

  - by Ben

  Hi, I'm trying to detect if the user has selected the "All Users" or the "Just Me" radio during the install of my program. I have a custom action setup that overrides several methods (OnCommit, OnBeforeInstall, etc.). Right now I'm trying to find out this information during OnCommit. I've read that the property I want to get at is the ALLUSERS property, but I haven't had any luck finding where it would be stored in instance/local data. Does anyone know of a way to get at it? -Ben

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• how to run my iphone 2.0 app in iphone os 2.0 and also 3.0 and above os

  - by Rahul Vyas

  i have iphone with os ver. 2.0 i read that for app store all appplication must be run 3.0 os.so how could i make my application to run in both firmware.is there a way i can detect if os ver.3.0 then run different statments alse run statments for lower than 3.0 os.currently i am using this. #if __IPHONE_3_0 cell.textLabel.text=cellValue; [cell.textLabel setFont:[UIFont systemFontOfSize:15.0]]; [cell.textLabel setLineBreakMode:UILineBreakModeTailTruncation]; #else cell.text=cellValue; [cell setFont:[UIFont systemFontOfSize:15.0]]; [cell setLineBreakMode:UILineBreakModeTailTruncation]; #endif will it run on both firmware i want to make my app to be run on =3.0 os and lower than this...please help me how do i check my application for deprecated methods...i can only see this line as deprecated cell.text=cellValue; is there anything to change.i have installed new sdk named iphone_sdk_3.0__leopard__9m2736__final.dmg

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• asp.net InsertCommand to return latest insert ID

  - by Stijn Van Loo

  Dear all, I'm unable to retrieve the latest inserted id from my SQL Server 2000 db using a typed dataset in asp.NET I have created a tableadapter and I ticked the "Refresh datatable" and "Generate Insert, Update and Delete statements". This auto-generates the Fill and GetData methods, and the Insert, Update, Select and Delete statements. I have tried every possible solution in this thread http://forums.asp.net/t/990365.aspx but I'm still unsuccesfull, it always returns 1(=number of affected rows). I do not want to create a seperate insert method as the auto-generated insertCommand perfectly suits my needs. As suggested in the thread above, I have tried to update the InsertCommand SQL syntax to add SELECT SCOPY_IDENTITY() or something similar, I have tried to add a parameter of type ReturnValue, but all I get is the number of affected rows. Does anyone has a different take on this? Thanks in advance! Stijn

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• Unit Testing in ASP.NET MVC: Minimising the number of asserts per test

  - by Neil Barnwell

  I'm trying out TDD on a greenfield hobby app in ASP.NET MVC, and have started to get test methods such as the following: [Test] public void Index_GetRequest_ShouldReturnPopulatedIndexViewModel() { var controller = new EmployeeController(); controller.EmployeeService = GetPrePopulatedEmployeeService(); var actionResult = (ViewResult)controller.Index(); var employeeIndexViewModel = (EmployeeIndexViewModel)actionResult.ViewData.Model; EmployeeDetailsViewModel employeeViewModel = employeeIndexViewModel.Items[0]; Assert.AreEqual(1, employeeViewModel.ID); Assert.AreEqual("Neil Barnwell", employeeViewModel.Name); Assert.AreEqual("ABC123", employeeViewModel.PayrollNumber); } Now I'm aware that ideally tests will only have one Assert.xxx() call, but does that mean I should refactor the above to separate tests with names such as: Index_GetRequest_ShouldReturnPopulatedIndexViewModelWithCorrectID Index_GetRequest_ShouldReturnPopulatedIndexViewModelWithCorrectName Index_GetRequest_ShouldReturnPopulatedIndexViewModelWithCorrectPayrollNumber ...where the majority of the test is duplicated code (which therefore is being tested more than once and violates the "keep tests fast" advice)? That seems to be taking it to the extreme to me, so if I'm right as I am, what is the real-world meaning of the "one assert per test" advice?

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• Tools to test softwares against any attacks for programmers ?

  - by berkay

  in these days, i'm interested in software security. As i'm reading papers i see that there are many attacks and researchers are trying to invent new methods for softwares to get more secure systems. this question can be a general including all types of attacks.There are many experienced programmers in SO, i just want to learn what are using to check your code against these attacks ? Is there any tools you use or you don't care ? For example i heard about,static,dynamic code analysis, fuzz testing. SQL injection attacks Cross Site Scripting Bufferoverflow attacks Logic errors Any kind of Malwares Covert Channels ... ... thanks

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• SSHing into EC2 instance fails - -v details below!

  - by ming yeow

  Hi folks! I created a new ec2 instance, but i am unable to ssh in with the key i normally use with my other instances. The -v details are below. Thanks! debug1: Host 'dbl01' is known and matches the RSA host key. debug1: Found key in /Users/mingyeow/.ssh/known_hosts:26 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey debug1: Next authentication method: publickey debug1: Offering public key: /Users/mingyeow/.ssh/id_rsa debug1: Authentications that can continue: publickey debug1: Trying private key: /Users/mingyeow/.ssh/identity debug1: Trying private key: /Users/mingyeow/.ssh/id_dsa debug1: No more authentication methods to try. Permission denied (publickey).

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• C# TraceSource class in multithreaded application

  - by matti

  msdn: "Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe." it contains only instance methods. How should I use it in a way that all activity gets recorder by TextWriterTraceListener to a text file. Is one static member which all threads use (by calling) TraceEvent-method safe. (I've kind of asked this question in http://stackoverflow.com/questions/1901086/how-to-instantiate-c-tracesources-to-log-multithreaded-asp-net-2-0-web-applica, but I cannot just believe if somebody just says it's OK despite the documentation).

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• undefined method get with sinatra

  - by dorelal

  I have following code require 'rubygems' require 'sinatra' get '/' do 'Hello World!' end gem list sinatra *** LOCAL GEMS *** sinatra (1.0, 0.9.4) ruby -v ruby 1.8.7 (2009-06-12 patchlevel 174) [i686-darwin10.2.0] Error ruby myapp.rb ["==", "===", "=~", "__id__", "__send__", "class", "clone", "display", "dup", "enum_for", "eql?", "equal?", "extend", "freeze", "frozen?", "hash", "id", "include", "inspect", "instance_eval", "instance_exec", "instance_of?", "instance_variable_defined?", "instance_variable_get", "instance_variable_set", "instance_variables", "is_a?", "kind_of?", "method", "methods", "nil?", "object_id", "private", "private_methods", "protected_methods", "public", "public_methods", "respond_to?", "send", "singleton_methods", "taguri", "taguri=", "taint", "tainted?", "tap", "to_a", "to_enum", "to_s", "to_yaml", "to_yaml_properties", "to_yaml_style", "type", "untaint"] ./sinatra.rb:17: undefined method `get' for main:Object (NoMethodError) from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' from myapp.rb:3

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• Personal project in Java

  - by Chuck

  My first project in java is going to be a program (eventually I have to create a GUI interface but for now CLI would do) to keep track of my books (something similar to what libraries have only a simpler). I need to be able to insert, update, remove, show all books, update, search(by name or author or date). For the design I was thinking one main class Library which will have all of the above as methods that connect to the db and retrieve the data. Is this approach ok? I realize it's simple but it's my first real project and I would appreciate a little feedback. Also, is it too soon to consider reading up on design patterns and database design ?

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• How to implement an override method in IronPython

  - by Adal

  I'm trying to implement a WPF control in IronPython and I'm having trouble implemented the override methods. The code below fails with this error: TypeError: expected int, got instancemethod. If I rename the VisualChildrenCount method, the exception is not raised anymore, but the control doesn't work. So how do I tell IronPython that the method is an override? class PaintCanvas(FrameworkElement): def __init__(self): self.__children = VisualCollection(self) dv = DrawingVisual() self.__children.Add(dv) # In C# this should be: protected override int VisualChildrenCount def VisualChildrenCount(self): return self.__children.Count # In C# this should be: protected override Visual GetVisualChild(int index) def GetVisualChild(self, index): return self.__children[index]

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• How to access a flash object embedded via swfobject's embedSWF?

  - by Andree

  Hi there, I have to call an ActionScript method via Javascript, but I have a problem accessing the flash object itself. I embed the flash file via the help of swfobject. Previously, when I use the static publishing approach, I could easily get the flash object by calling these methods: swfobject.registerObject("flash_object", "9", "expressInstall.swf"); var flash_object = swfobject.getObjectById("flash_object"); For some technical reasons, now I have to use the dynamic publishing approach (using swfobject.embedSWF). But, as mentioned in the documentation, the method getObjectById can only be used if you use static publishing approach. Now, how can I access the flash object? Cheers, Andree

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• 'Design By Contract' in C#

  - by IAmCodeMonkey

  I wanted to try a little design by contract in my latest C# application and wanted to have syntax akin to: public string Foo() { set { Assert.IsNotNull(value); Assert.IsTrue(value.Contains("bar")); _foo = value; } } I know I can get static methods like this from a unit test framework, but I wanted to know if something like this was already built-in to the language or if there was already some kind of framework floating around. I can write my own Assert functions, just don't want to reinvent the wheel.

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• problems with user control page

  - by Alexander

  I am starting to give up troubleshooting this issue I had... I had an .ascx page and had the following user control in it: <td> <Club:DatePicker ID="dp1" runat="server" /> </td> however in my code behind when I tried to write methods: public System.DateTime startDateTime { get { return dp1.SelectedDate.Add(tp1.SelectedTime.TimeOfDay); } set { dp1.SelectedDate = value; tp1.SelectedTime = value; } } It can't reference dp1(dp1 is underlined in red) as well as tp1... why is this?? I've tried to convert the solution to a web application and yet it doesn't work. Tried adding: protected global::ClubSite dp1; protected global::ClubSite tp1; in the ascx.designer.cs but then the global is highlighted in red here's the link to my full solution: http://cid-1bd707a1bb687294.skydrive.live.com/self.aspx/.Public/Permias.zip

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• Changing an extention method from linq-to-sql to entity framework

  - by Jova

  I'm changing my project from working with Linq-to-SQL to working with Entity Framework. I have some extention methods that extend the classes created by LINQ and I'm wondering how to change them to work with the entities instead Here's an example. public static int GetPublishedArticlesCount(this Table<Article> source) { return GetPublishedArticles(source.Context as DataContext, null).Count(); } This method gets the number of published articles. Instead of using this Table<Article>, what should I use instead?

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• UITableView, force to snap to whole UITableViewCell at top of table

  - by Adam Eberbach

  I have a need to make a UITableView only display whole cells at the top of the cell, so when the table is moved or scrolled it should animate to make a whole cell visible at the top of the table if it has happened to stop with a cell partially off the top. This can be easily done using visibleCells and scrollToRowAtIndexPath methods of UITableView, BUT the cell should not always scroll down to move the partial cell into view - if the cell at top is more than 50% gone it should go completely with the next cell (i.e. index 1 in the array returned by visibleCells) moving to the top of the table. I've tried a few things to make this happen but I don't think I am understanding the way frame and bounds work between a UITableView and its UITableViewCells. Any help?

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• How to create a typed stack using Objective-C

  - by Xetius

  I can create a stack class quite easily, using push and pop accessor methods to an NSArray, however. I can make this generic to take any NSObject derived class, however, I want to store only a specific class in this stack. Ideally I want to create something similar to Java's typed lists (List or List) so that I can only store that type in the stack. I can create a different class for each (ProjectStack or ItemStack), but this will lead to a more complicated file structure. Is there a way to do this to restrict the type of class I can add to a container to a specific, configurable type?

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• how do i call an overloaded action in .net mvc?

  - by Jeff Martin

  I have an overloaded action in my Controller: public ActionResult AssignList(int id) { ... } [AcceptVerbs((HttpVerbs.Get))] public ActionResult AssignList(int id, bool altList) { ... } I'd like to use the same partial view for both lists but it will potentially have a differently filtered list of Images. I am trying to call it from another view using RenderAction: <% Html.RenderAction("AssignList", "Image", new { id = Model.PotholeId, altList = true }); %> However I am getting the following error: The current request for action 'AssignList' on controller type 'ImageController' is ambiguous between the following action methods: System.Web.Mvc.ActionResult AssignList(Int32) on type UsiWeb.Controllers.ImageController System.Web.Mvc.ActionResult AssignList(Int32, Boolean) on type UsiWeb.Controllers.ImageController How can I call the specific overload?

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