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• how to load wpf usercontrol in MVVM pattern

  - by Anish

  Hi, I'm creating a wpf user control which is in mvvm pattern. So we have : view(with no code in codebehind file), viewmodel,model,dataaccess files. I have MainWindow.xaml as a view file, which I need to bind with MainWindowModel.cs. Usually, in a a wpf application we can do this with onStartUp event in App.xaml file. But in user control, as we do not have App.xaml...How do I achieve it ? Please help :(...Thanks in Advance !!!

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• Uploading files using HTML file input on iphone

  - by futureelite7

  I am creating a web form for uploading small movie clips to a HTTP server. However, while my HTML file input control gets shown on an ipod touch, the button is completely disabled and I cannot click it to upload files. What do I have to do to use the input control to upload files (e.g. movie clips or pictures) to my HTTP server. My page is XHTML MP 1.2 compliant.

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• Silverlight XAML layout issue

  - by George2

  Hello everyone, I am using Silverlight 3.0 + .Net 3.5 + VSTS 2008 + C# to develop a simple video application using the open source slvideoplayer of Silverlight. http://slvideoplayer.codeplex.com/ For the player, the play control is at the bottom of the rendering video, any ideas how to place play control at the top of video? I have tried hard but can not figure out. Any solutions? thanks in advance, George

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• Vector math, finding coördinates on a planar between 2 vectors

  - by Will Kru

  I am trying to generate a 3d tube along a spline. I have the coördinates of the spline (x1,y1,z1 - x2,y2,z2 - etc) which you can see in the illustration in yellow. At those points I need to generate circles, whose vertices are to be connected at a later stadium. The circles need to be perpendicular to the 'corners' of two line segments of the spline to form a correct tube. Note that the segments are kept low for illustration purpose. [apparently I'm not allowed to post images so please view the image at this link] http://img191.imageshack.us/img191/6863/18720019.jpg I am as far as being able to calculate the vertices of each ring at each point of the spline, but they are all on the same planar ie same angled. I need them to be rotated according to their 'legs' (which A & B are to C for instance). I've been thinking this over and thought of the following: two line segments can be seen as 2 vectors (in illustration A & B) the corner (in illustraton C) is where a ring of vertices need to be calculated I need to find the planar on which all of the vertices will reside I then can use this planar (=vector?) to calculate new vectors from the center point, which is C and find their x,y,z using radius * sin and cos However, I'm really confused on the math part of this. I read about the dot product but that returns a scalar which I don't know how to apply in this case. Can someone point me into the right direction? [edit] To give a bit more info on the situation: I need to construct a buffer of floats, which -in groups of 3- describe vertex positions and will be connected by OpenGL ES, given another buffer with indices to form polygons. To give shape to the tube, I first created an array of floats, which -in groups of 3- describe control points in 3d space. Then along with a variable for segment density, I pass these control points to a function that uses these control points to create a CatmullRom spline and returns this in the form of another array of floats which -again in groups of 3- describe vertices of the catmull rom spline. On each of these vertices, I want to create a ring of vertices which also can differ in density (amount of smoothness / vertices per ring). All former vertices (control points and those that describe the catmull rom spline) are discarded. Only the vertices that form the tube rings will be passed to OpenGL, which in turn will connect those to form the final tube. I am as far as being able to create the catmullrom spline, and create rings at the position of its vertices, however, they are all on a planars that are in the same angle, instead of following the splines path. [/edit] Thanks!

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• Measuring WPF Rendering Performance

  - by Wonko the Sane

  Hi All, I am looking to get some better performance on an ItemsControl, and I believe that the biggest hang-up is the rendering. The ItemTemplate of the control consists of (basically) a Border around an ImageBrush. The ItemsSource is an ObservableCollection of a custom class (of which I have no real control). What I'd like to know are some techniques for measuring (rudimentary measurements are fine to start with) the performance. This is an XP machine using .NET 3.5 SP1. Thanks, wTs

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• iPhone app with tab bar and navigation bar as peers

  - by Mac

  I'm trying to write an application that uses a navigation bar and tab bar in what (I'm gathering) is an unusual manner. Basically, I've got several "pages" ("home", "settings", etc) that each have their own tab. I'd also like to have it so that the "home" page is the root view of the navigation bar, and the other pages are the second-level views of the navigation bar. That is, I should be able to navigate to any page by clicking the appropriate tab bar item, and should be able to navigate to the home page from any other page by clicking the navigation bar's back button. Currently, I have a UINavigationBar (through a UINavigationController) and a UITabBar (through a UITabController) as children of a UIView. The various pages' view controllers are set as the tab controller's viewControllers property, and the home page's controller is also set as the navigation controller's root view. Each page view's tag is set to its index in the tab control. I have the following logic in the tab controller's didSelectViewController delegate method: - (void) tabBarController:(UITabBarController*) tabBarController didSelectViewController:(UIViewController*) viewController { if ([navController.viewControllers count] > 1) [navController popViewControllerAnimated:NO]; [navController pushViewController:viewController animated:YES]; } Also, in the navigation controller's didShowViewController delegate method, I have the following code: - (void) navigationController:(UINavigationController *) navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated { tabController.selectedIndex = viewController.view.tag; } The problem that's occurring is that when I run this, the navigation bar, tab bar and home page all display ok, but the tab bar will not respond to input - I cannot select a different tab. I gather it's more usual to have the tab bar as the child of the navigation control, or vice versa. This doesn't seem to fit my approach, because I don't want to have to individually create the subordinate control each time a change occurs in the parent control - eg: recreate tab bar each time the navigation bar changes. Does anyone have suggestions as to what's wrong and how to fix it? I'm probably missing something obvious, but whatever it is I can't seem to find it. Thanks! EDIT: I'm guessing it has something to do with both controller's trying to have ownership of the page controller, but I can't for the life of me figure out a way around it.

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• Examples of Hierarchical-Model-View-Controller (HMVC)?

  - by Stephen

  Hi, I'm interested in the Presentation-Abstraction-Control? (aka Hierarchical-Model-View-Controller (HMVC)) Architectural Pattern for constructing complex user interfaces (GUI or web) and was wondering if anyone was aware of any examples in the wild where I could read the code? My list so far; Cairngorm framework for Adobe Flex any others I'm aware of the JavaWorld article and associated letters cited in the wikipedia article http://en.wikipedia.org/wiki/Presentation-abstraction-control

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• SqlCacheDependency and output cache invalidation

  - by Rishabh Ohri

  Hi , Suppose I have a page abc.aspx in it I have a user control ucx123.ascx. I am fragment caching the user control and the cache is vary by param. The parameter is some id in the querystring. I want to add a sql cache dependency with respect to sql query. The scenario is I added the dependency but the cache is not invalidating

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• urlrewriter problem: Query string is duplicated shown?

  - by ebattulga

  I'm using urlRewritingNet. My web.config is here <add name="HOME" virtualUrl="^~/(.*)/Default.aspx" rewriteUrlParameter="ExcludeFromClientQueryString" destinationUrl="~/Default.aspx?PageTitle=$1" ignoreCase="true"/> My query string is here www.domain.com/home/default.aspx This works. But I'm insert LoginStatus control. When click on the login control to logout, Page url was like this www.domain.com/home/default.aspx?PageTitle=home Request.Querystring["PageTitle"] result is home,home How to stop this duplicated query string?

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• Grid View as demoed in iPad

  - by Sean Clark Hess

  I'm trying to develop a grid-like application for the iPad. Has anyone seen a control that displays info in a grid? In the demos they use a grid-like layout in both the iBooks store and the pictures application. Specifically in pictures, they are displaying a dynamic list of data in a grid. I can work around it, of course, but I'd rather use a control if one exists. Thanks!

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• Convert html to aspx.

  - by vinod

  Hi is there any tool or code to convert html files to .aspx ? Elaboration to earlier question: I am looking for tool or code that automatically converts html controls to .aspx server control without having to manually change each control. i.e something that will take html page as input, parses it and outputs the controls for .aspx page. thanks

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• Using If Else in HTML page inside <%# %>tags

  - by Amit Ranjan

  I have to set image on the basis of fields value coming from db. I want it to achieve via. tags <%# %. For example i have collection binded with grid. It has a Field called Online which is boolean. So if the value of Online is true then the green.png will be set as path of asp:image control else grey.png will be the path of the asp: image control.

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• Good NumericUpDown equivalent in WPF?

  - by chaiguy1337

  I'm looking for a simple NumericUpDown (a.k.a. number spinner) control in WPF. This seems to be another lacking control in WPF. There must be some existing ones out there and I don't like to re-invent the wheel.

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• blocking url using firefox extension

  - by user272483

  how can i control access to webpages in firefox. i'm going to develope a new addon for this but colud you tell me what should i do? can firefox extension programming allows this. or should i develop a desktop application to control access. thx in advance.

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• Skin issues with multiple controls in a Dot Net Nuke module

  - by Josiah

  In the Dot Net Nuke module that I'm developing I need to separate the controls into several different areas. Unfortunately, it appears that Dot Net Nuke thinks that any control identified by a control key is an 'edit' screen and changes the skin automatically. Is it possible to change this behaviour programmatically? What is the best method of switching controls without having the skin changed?

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• How do I prevent Visual Studio from renaming my controls?

  - by Zack Peterson

  If I paste something like <asp:DropDownList ID="DropDownListExpirationDate" runat="server" /> onto an ASPX file that already has a DropDownListExpirationDate control, it will rename the newly-pasted control as DropDownList1. <asp:DropDownList ID="DropDownList1" runat="server" /> I'd rather it didn't. I'd rather is just paste exactly what I copied. Is there a way to disable this feature?

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• Possible to set monthCalendar to show current month and previous 2 months?

  - by John M

  In a WinForms (3.5) application there is form with a monthCalendar control. The calendar control has a calendarDimension of 3 columns by 1 row. This means that it currently shows June, July, August of 2010. Is it possible to have the calendar to show April, May, June of 2010 instead? My dataset doesn't have any future dates so the date selection will be for current or older dates.

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• drag and drop from treeview onto datalist/repeater

  - by Tarun

  Hi, I have made a monthly view custom calendar.I have taken a repeater to make the control.Now what i want is there is a treeview showing some data.I drag from that treeview onto Datalist/Repeater control.on dropping the value should be inserted into database

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• Asp.net hosting equivalent of Dreamhost (pricing, features and support)

  - by Cherian

  Disclaimer: I have browsed http://stackoverflow.com/questions/tagged/asp.net+hosting and didn’t find anything quite similar in value to Dreamhost. One of the biggest impediments IMHO for developing web applications on asp.net is the cost of deployment. I am not talking about building sites like Stackoverflow.com or plentyoffish.com. This is about sites that are bigger than brochureware and smaller than ones that require dedicated servers. Let me give you an example. xmec.org is an asp.net site I maintain for my college alumni. On an average it’s slated to hit around 1000-1100 views per day. At present it’s hosted on godaddy. The service is so damn pathetic; I am using it only because of the lack of options. The site doesn’t scale (no, it’s not the code) and the web control panels are extremely slow. The money I pay doesn’t justify the service or the performance. Every deployment push is a visit to the infuriating web control panel to set the permissions and the root directories. Had I developed it in python, this would have been deployed on Dreamhost.com with $10/year hosting fees (they have offers running all throughout) 50 GB space 5 MySQL Databases Shell / FTP Users POP / SMTP Access Unlimited Domains hosting Unlimited Sub domains hosting Unlimited Domains Forwarded/Mirrored Custom DNS (These are the only ones I could think of. More at the feature page) With a dream host shell, I even have a svn checked-out version of wordpress for my blog. Now, that’s control! To my question: Is there any asp.net (preferably .net 3.5. Dreamhost keeps on updating versions every fortnight) hosting company providing remotely similar feature-sets and pricing like Dreamhost. My requirements are: Less than $15-25/ year Typical WISP minus PHP .net 3.5 SP1 Full Trust mode(I can live with medium trust, if not for the IL emitting libraries) Isolated Application Pool 5 – 10 MySQL db’s Unlimited domain hosting MsSql 2005 or 2008 FTP support At Least 5 GB space SMTP IIS 7 Log files Accessibility Moderately good control panel Scripting, shell support Nominal bandwidth Another case in point: Recently I’ve been contemplating building a tool-website to find duplicates and weird characters in my Google contacts and fix them. With asp.net, the best part is that I can do this with LINQ to XML in less than 100 lines of code. What’s bad is the hosting part. I don’t think I stand to make any money out of this and therefore can’t afford to host it on GoGrid or DiscountAsp.net. Godaddy is not an option either. If I do this in python, I can push to this my existing $10 Dreamhost account with another domain pointed. No extra cost. Svn exported with scripts (capability) to change the connection string! Looking at the problem holistically, I think I represent a large breed of programmers playing it cheap and experimenting different things on a regular basis, one of which will become the next twitter/digg.

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• Making a "Fuzzy border" in Silverlight 3.0

  - by skb

  I would like to have fuzzy looking border around my Canvas control. Basically, I am creating a Print Preview screen, and I want it to look almost exactly like the one in Word 2010. In this, there is a thin gray line, a thin orange line and then a fuzzy gradient around the outside of the page. Check it out and you will see what I mean. Can anyone tell me how I can do this with my Canvas control?

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• JQuery overriding the themeroller style

  - by Paul Connolly

  Hi, In my accordian control I want to override the header style to show a red background instead of the default theme colour if ever the user control (e.g user's name and address input) in that particular pane returns a validation boolean of false. I'm ok with how to use .Toggle to change the class but can't figure out how to grab the themeroller class in the first place. How would I do this? Thanks Paul

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• WPF element binding across seperate windows-how to do?

  - by jack123

  I can do element-to-element binding in WPF: For example, I've got a window that has a slider control and a textbox, and the textbox dynamically displays the Value property of the slider as the user moves the slider. But how do i do this across seperate windows (in the same project, same namespace) ? The reason is that my main application window containing the textbox has a menu option that will open an 'options' window containing the slider control. Thanks.

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• Question on Viewstate

  - by ScG

  I have a couple of pages that are bulky due to the viewstate. I have following question: is there any tool that can track viewstate of individual control on page and tell me which control is taking maxm viewstate also can i know which controls viewstate is not being used and disable it?

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• Controlling number of downloads on Amazon S3

  - by m7d

  Is there a way to control number of downloads of digital content on Amazon S3 or via some middle man software that talks to S3? I already use their timed links, but I would like to control number of downloads also. Any ideas of how to accomplish this using S3 or suggestions about alternative services that could? Thanks!

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• WPF PropertyGrid - adding support for collections

  - by akjoshi

  Hi, I am working on wpf propertygrid(PG) control and I want the PG to support collection type(IList, ObservableCollection etc.) properties. I am bit confused on how to keep track of selected item(of that collection) and pass that to client. Any ideas? If the solution makes use of the Open Source WPF PropertyGrid (http://www.codeplex.com/wpg) I will implement the changes /additions back into the control.

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