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  • Why are my installed fonts not available in .NET?

    - by Dan Herbert
    I'm trying to render some images with text using a font I just added to my machine and no matter what I do, I can't seem to get the font to become accessible in .NET. I tried using PrivateFontCollection.AddFontFile(filename) and PrivateFontCollection.AddMemoryFont(...) to load the font into memory. Whenever I do this, the method throws a "File Not Found" exception, which is unusual because I get this exception when loading the font from memory, where there should be no files to be "not found". Initially, I thought it may be because the font I was trying to use was in the .pfm format, so I converted the font to .otf and had the same problem. Then I tried installing the .otf font to my Windows Fonts folder so I could pull it from FontFamily.Families. Once I installed the font, it became available in Microsoft Word & Notepad2. However, when I try to load it from FontFamily.Families, it is not included in the array. I thought rebooting my machine would fix the issue but obviously there is something more complicated involved here. Is there something basic I just might have missed when installing the font in my machine (Windows Vista), or is there another way to programmatically load a font that I should be using instead? Is .otf not supported in .NET?

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  • .NET WF4: Should it be in the middle of everything?

    - by stimpy77
    I am aware that WF4 (Windows Workflow 4.0, part of .NET 4.0) is a significant rework and redesign of WF3, where much of what made WF3 a poor technology choice has been cleaned up in WF4. For example, as far as I can tell, WF4 (Windows Workflow 4.0) activities are more or less testable with [TestMethod] and mocking. This among other things, like improved performance, has grabbed my attention about the technology again, whereas I had previously pooh-poohed WF3. I'm working on a new architecture for essentially an n-tier collaborative application (not enterprise-class, just a smallish project with potential to grow significantly) where I'm already trying to discipline myself to use IoC and, to some extent, TDD, and I'm wondering, in general terms, whether it is wiser to just hand-code workflow logic or if I should delve into learning and integrating WF4 so that WF becomes literally the controller of the entire application, i.e. the practical C in "MVC" (not ASP.NET MVC but rather the pattern). So should workflow activities in WF4 be the primary controller for a highly expandable/growable web-based collaborative application? Or am I asking entirely the wrong question? This is a vague question, I'm sure, so abstract answers are as welcome as specific ones.

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  • When should I be cautious using about data binding in .NET?

    - by Ben McCormack
    I just started working on a small team of .NET programmers about a month ago and recently got in a discussion with our team lead regarding why we don't use databinding at all in our code. Every time we work with a data grid, we iterate through a data table and populate the grid row by row; the code usually looks something like this: Dim dt as DataTable = FuncLib.GetData("spGetTheData ...") Dim i As Integer For i = 0 To dt.Rows.Length - 1 '(not sure why we do not use a for each here)' gridRow = grid.Rows.Add() gridRow(constantProductID).Value = dt("ProductID").Value gridRow(constantProductDesc).Value = dt("ProductDescription").Value Next '(I am probably missing something in the code, but that is basically it)' Our team lead was saying that he got burned using data binding when working with Sheridan Grid controls, VB6, and ADO recordsets back in the nineties. He's not sure what the exact problem was, but he remembers that binding didn't work as expected and caused him some major problems. Since then, they haven't trusted data binding and load the data for all their controls by hand. The reason the conversation even came up was because I found data binding to be very simple and really liked separating the data presentation (in this case, the data grid) from the in-memory data source (in this case, the data table). "Loading" the data row by row into the grid seemed to break this distinction. I also observed that with the advent of XAML in WPF and Silverlight, data-binding seems like a must-have in order to be able to cleanly wire up a designer's XAML code with your data. When should I be cautious of using data-binding in .NET?

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  • How to target multiple versions of .NET Framework from MSBuild?

    - by McKAMEY
    I am improving the builds for an open source project which currently supports .NET Framework v2.0, v3.5, and now v4.0. Up until now, I've restricted myself to v2.0 to ensure compatibility, but with VS2010 I am interested in having real targeted builds. I'm looking for some guidance on how to edit the MSBuild csproj/sln to be able to cleanly produce builds for each target. I'm willing to have complexity in the csproj and in a batch file to control the build. My goal is to be able to have a command line script that could produce the builds without needing Visual Studio installed, but only the necessary .NET Framework(s). Ideally, I'd like to minimize dependencies on additional software. I notice that a lot of people use NAnt (e.g. Ninject builds many targets with NAnt) but I'm unsure if this is necessary or if they are just more familiar with it. I'm pretty sure this can be done but am having trouble finding a definitive guide on setting it up and best practices. Bonus: my next step after getting this set up will be to better support Mono Framework. Any help on doing this same thing for Mono would be much appreciated.

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  • When should I be cautious using data binding in .NET?

    - by Ben McCormack
    I just started working on a small team of .NET programmers about a month ago and recently got in a discussion with our team lead regarding why we don't use databinding at all in our code. Every time we work with a data grid, we iterate through a data table and populate the grid row by row; the code usually looks something like this: Dim dt as DataTable = FuncLib.GetData("spGetTheData ...") Dim i As Integer For i = 0 To dt.Rows.Length - 1 '(not sure why we do not use a for each here)' gridRow = grid.Rows.Add() gridRow(constantProductID).Value = dt("ProductID").Value gridRow(constantProductDesc).Value = dt("ProductDescription").Value Next '(I am probably missing something in the code, but that is basically it)' Our team lead was saying that he got burned using data binding when working with Sheridan Grid controls, VB6, and ADO recordsets back in the nineties. He's not sure what the exact problem was, but he remembers that binding didn't work as expected and caused him some major problems. Since then, they haven't trusted data binding and load the data for all their controls by hand. The reason the conversation even came up was because I found data binding to be very simple and really liked separating the data presentation (in this case, the data grid) from the in-memory data source (in this case, the data table). "Loading" the data row by row into the grid seemed to break this distinction. I also observed that with the advent of XAML in WPF and Silverlight, data-binding seems like a must-have in order to be able to cleanly wire up a designer's XAML code with your data. When should I be cautious of using data-binding in .NET?

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  • How to use MSBuild to target multiple versions of .NET Framework?

    - by McKAMEY
    I am improving the builds for an open source project which currently supports .NET Framework v2.0, v3.5, and now v4.0. Up until now, I've restricted myself to v2.0 to ensure compatibility, but with VS2010 I am interested in having real targeted builds. I'm looking for some guidance on how to edit the MSBuild csproj/soln to be able to cleanly produce builds for each target. I'm willing to have complexity in the csproj and in a batch file to control the build. My goal is to be able to have a command line script that could produce the builds without needing Visual Studio installed, but only the necessary .NET Framework(s). Ideally, I'd like to minimize dependencies on additional software (e.g. NAnt). I'm pretty sure this can be done but am having trouble finding a definitive guide on setting it up and best practices. Bonus: my next step after getting this set up will be to better support Mono Framework. Any help on doing this same thing for Mono would be much appreciated.

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  • ADO.NET Multiple simultaneous reads from an open database.

    - by Deverill
    Answer not needed - my logic was wrong and this question is invalid. Charles helped me see where I went off-tracks. Thanks I have a utility that moves data from one source to another. In the process of writing the record I check to see if it exists and do an update/insert as necessary. The difficulty I have is that as I'm writing the main record info there is a 2nd table for "custom data" that I have to check to see if it exists and do an update/insert for that as well. Example: I may be loading a pencil sharpener that may or may not exist. While I'm writing it into destination it has characteristics such as style, color, etc. and each of them may or may not exist. As written I seem to need to have 2 DataReaders open, one for the sharpener and one to check for and update color. I am new to ADO.NET, but not to programming and it's more complicated than I listed but for sanity's sake I didn't put all the details. My question is: What am I missing? You can't have 2 readers open at the same time on a connection, yet I can't close the first if I'm stepping through all products. It seems inefficient to have 2 connections, readers, etc. for this. Is there a feature of ADO.NET DBs that I'm missing? How would you do it? Thanks!

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  • Asp.net MVC ModelState.Clear

    - by Mr Grok
    Can anyone give me a succinct definition of the role of ModelState in Asp.net MVC (or a link to one). In particular I need to know in what situations it is necessary or desirable to call ModelState.Clear(). Can anyone give me a succinct definition of the role of ModelState in Asp.net MVC (or a link to one). In particular I need to know in what situations it is necessary or desirable to call ModelState.Clear(). Bit open ended huh... sorry, I think it might help if tell you what I'm acutally doing: I have an Action of Edit on a Controller called "Page". When I first see the form to change the Page's details everything loads up fine (binding to a "MyCmsPage" object). Then I click a button that generates a value for one of the MyCmsPage object's fields (MyCmsPage.SeoTitle). It generates fine and updates the object and I then return the action result with the newly modified page object and expect the relevant textbox (rendered using <%= Html.TextBox("seoTitle", page.SeoTitle)%) to be updated ... but alas it displays the value from the old model that was loaded. I've worked around it by using ModelState.Clear() but I need to know why / how it has worked so I'm not just doing it blindly. PageController: [AcceptVerbs("POST")] public ActionResult Edit(MyCmsPage page, string submitButton) { // add the seoTitle to the current page object page.GenerateSeoTitle(); // why must I do this? ModelState.Clear(); // return the modified page object return View(page); } Aspx: <%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<MyCmsPage>" %> .... <div class="c"> <label for="seoTitle"> Seo Title</label> <%= Html.TextBox("seoTitle", page.SeoTitle)%> <input type="submit" value="Generate Seo Title" name="submitButton" /> </div>

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  • ASP.NET how to use __doPostBack from Custom JavaScript with Master/Content Pages

    - by harrije
    In a simple aspx page I can have a custom JavaScript function postback as described in http://www.xefteri.com/articles/show.cfm?id=18 The simple page uses a linkbutton: <asp:LinkButton id="CreateFile" runat="server" onclick="CreateFile_Click" /> with code behind that has the VB subroutine: Sub CreateFile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) and a Javascript custom function that does: __doPostBack('CreateFile',''); When I move the code to a content page with a corresponding master page the simple example no longer works. I'm aware that server control IDs are changed in the generated HTML when a master page is involved, and I'm using the correct IDs in the Javascript. As an example, for the LinkButton ID I use '<%=CreateFile.ClientID%' for the Javascript in the generated HTML. Never the less, I still can't figure out how to get postbacks from the Javascript when master pages are involved. More accurately, with a master page in the mix the code won't even compile but results in: 'CreateFile_Click' is not a member of 'ASP.testmaster_aspx' If I remove onclick="CreateFile_Click" from the LinkButton markup it compiles but does not work. Similary if onclick is removed from the simpler version without a master page it does not work either, as expected. Any input on how to get postback from a custom Javascript function when using master pages would be much appreciated.

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  • ASP.NET MVC in a subfolder (only) on godaddy

    - by Anthony Potts
    Okay, I have read many of the routing posts concerning putting asp.net mvc on godaddy. However, I have not come to a solution to my current problem. I am trying to publish an ASP.NET MVC application to a subfolder on godaddy. I have upgraded the account to use IIS 7 and I have included the MVC dlls in \bin\ deployment method. However, I suspect that my route is not correct. Currently, my routes are set up with the standard out of the box route: public static void RegisterRoutes(RouteCollection routes) { routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); routes.MapRoute( "Default", // Route name "{controller}/{action}/{id}", // URL with parameters new { controller = "Home", action = "Index", id = "" } // Parameter defaults ); } I have a subdomain set up so that it looks like office.domain.com. The subdomain is pointing at a folder "/office/" which is right off the root folder. (There is not an MVC application installed in the root folder). All of my application has been placed in this 'office' folder. When I hover over the links however, the 'office' portion shows up in the link as well. e.g. Hovering over a link to the customer controller, index action yields "office.domain.com/office/Customer" as the target. This link then gets a 404 when I attempt to go to it. What should my route be to fix this? Is there something I have neglected in setting up the subdomain in godaddy? Is this something I just can't do in godaddy's domain management "tool". Do I need to set up a virtual directory for this instead of just a directory? Update: I changed the IIS settings in godaddy to use integrated pipeline mode, per this discussion and I am no longer getting 404 errors. The application worked just fine as suggested it would.

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  • Matlab and .NET Interaction

    - by adyaron
    Hi All! I'm having an issue interacting between Matlab and .NET. I've managed to call .NET methods from Matlab code and vice versa. However, if I call a .NET method that, in turn, instantiates a Matlab object, it crashes (with a type initialization exception). Think about this scenario: a .NET assembly is interacting with a Matlab dll that was deployed for .NET (not native) by Matlab's deploytool. Now, when I'm loading the above .NET dll in a Matlab program everything is ok until I run a method that utilizes the other Matlab dll. Only then everything crashes. The exact message is: Warning: Cannot initialize MATLAB Compiler-generated software component in MATLAB. MATLAB Compiler-generated software components cannot be used from within MATLAB. Please don't offer not to use Matlab-.NET-Matlab architecture, it's not an option. Thank you very much (I promise to accept the answer that solves the problem :-)), Yaron.

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  • jQuery Sortable .toArray with ASP.NET MVC ActionResult

    - by Stacey
    Third try at fixing this tonight - trying a different approach than before now. Given a jQuery Sortable List.. <ul id="sortable1" class="connectedSortable"> <li class="ui-state-default" id="item1">Item 1</li> <li class="ui-state-default" id="item2">Item 2</li> <li class="ui-state-default">Item 3</li> <li class="ui-state-default ">Item 4</li> <li class="ui-state-default">Item 5</li> </ul> <ul id="sortable2" class="connectedSortable"> </ul> And ASP.NET MVC ActionResult.. [AcceptVerbs(HttpVerbs.Post)] public ActionResult Insert( string[] items ) { return null; } Activated by JavaScript... $("#sortable1, #sortable2").sortable({ connectWith: '.connectedSortable', dropOnEmpty: true, receive: function () { var items = $(this).sortable('toArray'); alert(items); $.ajax({ url: '/Manage/Events/Insert', type: 'post', data: { 'items': items } }); } }).disableSelection(); The 'alert' DOES show the right items. It shows 'item1, item2' etc. But my ASP.NET MVC ActionResult gets nothing. The method DOES fire, but the 'items' parameter comes in null. Any ideas?

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  • ASP.net MVC HttpException strange file not found

    - by Paddy
    I'm running asp.net MVC site on IIS6 - I've edited my routing to look like the following: routes.MapRoute( "Default", "{controller}.aspx/{action}/{id}", new { controller = "Home", action = "Index", id = "" } ); routes.MapRoute( "Root", "", new { controller = "Home", action = "Index", id = "" } ); So all my urls now contain .aspx (as per one of the solutions from Phil Haack). Now, I catch all unhandled exceptions using Elmah, and for almost every page request, I get the following error caught by Elmah, that I never see on the front end (everything works perfectly): System.Web.HttpException: The file '/VirtualDirectoryName/Home.aspx' does not exist. System.Web.HttpException: The file '/VirtualDirectoryName/Home.aspx' does not exist. at System.Web.UI.Util.CheckVirtualFileExists(VirtualPath virtualPath) at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean noAssert) at System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp, Boolean noAssert) at System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) at System.Web.UI.PageHandlerFactory.System.Web.IHttpHandlerFactory2.GetHandler(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) at System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) at System.Web.HttpApplication.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) There is a Home controller, and it should be found, but I'm not sure a) where this is being called from, and b) why I don't see this error on the front end. Any ideas? Edited with answer: I think the answer for this can be found in this question: http://stackoverflow.com/questions/34194/asp-net-mvc-on-iis6

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  • Can't launch asp.net mvc 2 application from iis 7.5

    - by StuffHappens
    Hello. I'm trying to launch my mvc 2 application from iis 7.5 and get HTTP 403.14 - Forbidden error. That's what I did: 1. Went to add or remove windows fitures checked iis, asp.net, http redirect. Installed all this stuff. 2. Launched Visual studio 2010 (release), created standart mvc 2 project and published it in default web site/ApplicationName 3. Set default DefaultAppPool .Net version to 4.0. I'm the only user of the computer and have admin rights. What might be wrong? Thank you for your help.

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  • HTTP Content-Type in ASP.Net SoapHttpClientProtocol

    - by Daniel Fone
    Hi there, I have a problem with a Web Service Consumer written in ASP.NET. The error message is: System.InvalidOperationException: Client found response content type of 'application/xml; charset=utf-8', but expected 'text/xml'. The client is based on System.Web.Services.Protocols.SoapHttpClientProtocol. We can't change the Content-Type given by the provider, this has to be 'application/xml; charset=utf-8'. Is there any way to change what Content-Type the SoapHttpClientProtocol expects? Unfortunately, we are probably limited to .NET 1.1. Thanks! Update: We found a way to change the Content-Type sent by the provider, and this solved the problem. I'd still be curious to know how to change the expectations of the consumer though.

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  • ASP.NET MVC GoogleBot Issues

    - by Khalid Abuhakmeh
    I wrote a site using ASP.NET MVC, and although it is not completely SEO optimized at this point I figured it is a good start. What I'm finding is that when I use Google's Webmaster Tools to fetch my site (to see what a GoogleBot sees) it sees this. HTTP/1.1 200 OK Cache-Control: public, max-age=1148 Content-Type: application/xhtml+xml; charset=utf-8 Expires: Mon, 18 Jan 2010 18:47:35 GMT Last-Modified: Mon, 18 Jan 2010 17:07:35 GMT Vary: * Server: Microsoft-IIS/7.0 X-AspNetMvc-Version: 2.0 X-AspNet-Version: 2.0.50727 X-Powered-By: ASP.NET Date: Mon, 18 Jan 2010 18:28:26 GMT Content-Length: 254 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title> Index </title> </head> <body> </body> </html> Obviously this is not what my site looks like. I have no clue where Google is getting that HTML from. Anybody have an answer and a solution? Anybody experience the same issues? Thanks in advance.

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  • How To Create An ASP.NET Designer Host

    - by Zuhaib
    I have been asked to build an application where I can drag and drop few WebControls onto the WebPage designer surface. So far I have read some articles on .NET Framework Design-Time architecture, like, MSDN Article: Hosting WinForms Designers, Developer Function Article etc. But I can't a find a way to host WebForms designer. The only open source implementation that I could find was Mono Develop ASP.NET Visual Designer. But in mono they have used GTK# & Gecko etc to host the designer. I can't find a way to do the same using WinForms. Please suggest me what should I do. Give me some pointers. Should I go ahead and implement it using GTK# and Gecko? PS: My requirement is not very huge. I need just a way to drag and drop simple web controls and save the page.

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  • ExtAsp or Coolite - ASP.NET wrappers around ExtJs

    - by Jon
    Hi, We are a small Microsoft shop looking into ExtJs and like the rapid building of complex and structured UIs that can be achieved with the toolkit. However we have been experimenting with ExtAsp.NET (CodePlex) which is an opensource layer of ASP.NET code which wraps around the ExtJs framework. We have also noticed the Coolite framework which looks good too and does the same thing. We have 2 options, either we purchase the ExtJs license which will be required if we use ExtAsp, or we purchase the Coolite kit which includes the ExtJs license. It looks like Coolite is actually it little cheaper than the ExtJs for some reason?? However, is it a little more risky as regards upgrade path if the Coolite framework becomes unsupported, whereas ExtAsp as an open source solution will have community backing? Just looking to make the right step.

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  • Random "Not Found" error with Silverlight accessing ASP.NET Web Services

    - by user245822
    I'm developing an application with Silverlight 3 and ASP.NET Web Services, which uses Linq to SQL to get data from my SQL Server database. Randomly when the user causes an action to get information from any of my web service methods, Silverlight throws the exception "The remote server returned an error: NotFound.", of type "CommunicationException", with the InnerException status of "System.Net.WebExceptionStatus.UnknownError". Almost 10% of requests gets this error. If the user tries to get the same information again, normally the request has no erros and the user gets the data. When debugging in Visual Studio only Silverlight stops on the exception, and I see no reason for the web service not being found.

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  • ASP.NET MVC Session Expiration

    - by Andrew Flanagan
    We have an internal ASP.NET MVC application that requires a logon. Log on works great and does what's expected. We have a session expiration of 15 minutes. After sitting on a single page for that period of time, the user has lost the session. If they attempt to refresh the current page or browse to another, they will get a log on page. We keep their request stored so once they've logged in they can continue on to the page that they've requested. This works great. However, my issue is that on some pages there are AJAX calls. For example, they may fill out part of a form, wander off and let their session expire. When they come back, the screen is still displayed. If they simply fill in a box (which will make an AJAX call) the AJAX call will return the Logon page (inside of whatever div the AJAX should have simply returned the actual results). This looks horrible. I think that the solution is to make the page itself expire (so that when a session is terminated, they automatically are returned to the logon screen without any action by them). However, I'm wondering if there are opinions/ideas on how best to implement this specifically in regards to best practices in ASP.NET MVC.

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  • asp.net C# Webcam api error

    - by Eyla
    Greeting, I'm tring to use webcam api with asp.net and C#. I included all the library and reverince I needed for that. the original code I'm use was for windows application and I'm trying to convert it to asp.net web application. I have start capturing button when I click it, it should start capturing but it gives me an error. the error at this line: hHwnd = capCreateCaptureWindowA(iDevice.ToString(), (WS_VISIBLE | WS_CHILD), 0, 0, 640, 480, picCapture.Handle.ToInt32(), 0); and the error message is: Error 1 'System.Web.UI.WebControls.Image' does not contain a definition for 'Handle' and no extension method 'Handle' accepting a first argument of type 'System.Web.UI.WebControls.Image' could be found (are you missing a using directive or an assembly reference?) C:\Users\Ali\Documents\Visual Studio 2008\Projects\Conference\Conference\Conference1.aspx.cs 63 117 Conference Please advice!! ................................................ here is the complete code ........................................... using System; using System.Collections; using System.Drawing; using System.ComponentModel; using System.Windows.Forms; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; using System.Runtime.InteropServices; using System.Drawing.Imaging; using System.Net; using System.Net.Sockets; using System.Threading; using System.IO; namespace Conference { public partial class Conference1 : System.Web.UI.Page { #region WebCam API const short WM_CAP = 1024; const int WM_CAP_DRIVER_CONNECT = WM_CAP + 10; const int WM_CAP_DRIVER_DISCONNECT = WM_CAP + 11; const int WM_CAP_EDIT_COPY = WM_CAP + 30; const int WM_CAP_SET_PREVIEW = WM_CAP + 50; const int WM_CAP_SET_PREVIEWRATE = WM_CAP + 52; const int WM_CAP_SET_SCALE = WM_CAP + 53; const int WS_CHILD = 1073741824; const int WS_VISIBLE = 268435456; const short SWP_NOMOVE = 2; const short SWP_NOSIZE = 1; const short SWP_NOZORDER = 4; const short HWND_BOTTOM = 1; int iDevice = 0; int hHwnd; [System.Runtime.InteropServices.DllImport("user32", EntryPoint = "SendMessageA")] static extern int SendMessage(int hwnd, int wMsg, int wParam, [MarshalAs(UnmanagedType.AsAny)] object lParam); [System.Runtime.InteropServices.DllImport("user32", EntryPoint = "SetWindowPos")] static extern int SetWindowPos(int hwnd, int hWndInsertAfter, int x, int y, int cx, int cy, int wFlags); [System.Runtime.InteropServices.DllImport("user32")] static extern bool DestroyWindow(int hndw); [System.Runtime.InteropServices.DllImport("avicap32.dll")] static extern int capCreateCaptureWindowA(string lpszWindowName, int dwStyle, int x, int y, int nWidth, short nHeight, int hWndParent, int nID); [System.Runtime.InteropServices.DllImport("avicap32.dll")] static extern bool capGetDriverDescriptionA(short wDriver, string lpszName, int cbName, string lpszVer, int cbVer); private void OpenPreviewWindow() { int iHeight = 320; int iWidth = 200; // // Open Preview window in picturebox // hHwnd = capCreateCaptureWindowA(iDevice.ToString(), (WS_VISIBLE | WS_CHILD), 0, 0, 640, 480, picCapture.Handle.ToInt32(), 0); // // Connect to device // if (SendMessage(hHwnd, WM_CAP_DRIVER_CONNECT, iDevice, 0) == 1) { // // Set the preview scale // SendMessage(hHwnd, WM_CAP_SET_SCALE, 1, 0); // // Set the preview rate in milliseconds // SendMessage(hHwnd, WM_CAP_SET_PREVIEWRATE, 66, 0); // // Start previewing the image from the camera // SendMessage(hHwnd, WM_CAP_SET_PREVIEW, 1, 0); // // Resize window to fit in picturebox // SetWindowPos(hHwnd, HWND_BOTTOM, 0, 0, iWidth, iHeight, (SWP_NOMOVE | SWP_NOZORDER)); } else { // // Error connecting to device close window // DestroyWindow(hHwnd); } } private void ClosePreviewWindow() { // // Disconnect from device // SendMessage(hHwnd, WM_CAP_DRIVER_DISCONNECT, iDevice, 0); // // close window // DestroyWindow(hHwnd); } #endregion protected void Page_Load(object sender, EventArgs e) { } protected void btnStart_Click(object sender, EventArgs e) { int iDevice = int.Parse(device_number_textBox.Text); OpenPreviewWindow(); } } }

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  • Display a Photo Gallery using Asp.Net and SQL

    - by sweetcoder
    I have recently added photos to my SQL database and have displayed them on an *.aspx page using Asp:Image. The ImageUrl for this control stored in a separate *.aspx page. It works great for profile pictures. I have a new issue at hand. I need each user to be able to have their own photo gallery page. I want the photos to be stored in the sql database. Storing the photos is not difficult. The issue is displaying the photos. I want the photos to be stored in a thumbnail grid fashion, when the user clicks on the photo, it should bring up the photo on a separate page. What is the best way to do this. Obviously it is not to use Asp:Image. I am curious if I should use a Gridview. If so, how do I do that and should their be a thumbnail size stored in the database for this? Once the picture is click on how does the other page look so that it displays the correct image. I would think it is not correct to send the photoId through the url. Below is code from the page I use to display profile pictures. protected void Page_Load(object sender, EventArgs e) { string sql = "SELECT [ProfileImage] FROM [UserProfile] WHERE [UserId] = '" + User.Identity.Name.ToString() + "'"; string strCon = System.Web.Configuration.WebConfigurationManager.ConnectionStrings["SocialSiteConnectionString"].ConnectionString; SqlConnection conn = new SqlConnection(strCon); SqlCommand comm = new SqlCommand(sql, conn); conn.Open(); Response.ContentType = "image/jpeg"; Response.BinaryWrite((byte[])comm.ExecuteScalar()); conn.Close(); }

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  • Debugging ASP.NET Strings Downloaded to Browser (Montréal instead of Montréal)

    - by jdk
    I'm downloading a vCard to the browser using Response.Write to output .NET strings with special accented characters. Mime type is text/x-vcard and French characters are appearing wrong in Outlook, for example Montréal;Québec .NET string shows as Montréal Québec in browser. I'm using this vCard generator code from CodeProject.com I've played with the System.Encoding sample code at the bottom of this linked MSDN page to convert the unicode string into bytes and then write the ascii bytes but then I get Montr?al Qu?bec (progress but not a win). Also I've tried setting content type to both us-ascii and utf-8 of the response. If I open the downloaded vCard in Windows Notepad and save it as ANSI text (instead of default unicode format) and open in Outlook it's okay. So my assumption is I need to cause download of ANSI charset but am unsure if I'm doing it wrong or have a misunderstanding of where to start. Update: Looking at the raw HTTP, it appears my French characters are being downloaded in the unexpected format so it looks like I need to do some work on the server side... (full size)

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  • asp.net mvc custom membership provider - define application

    - by ile
    I created custom membership provider for asp.net mvc applications and it all works fine except one thing: when logged in to my application, I am also logged in to all other asp.net mvc applications that I run using Visual Studio. I suppose this data is being pulled from cache because when I logout and try to login again in other application, I'm being rejected. In webconfig, I added applicationName in order to solve this but it didn't work: <membership defaultProvider="SAMembershipProvider" userIsOnlineTimeWindow="15"> <providers> <clear/> <add name="SAMembershipProvider" type="ShinyAnt.Membership.SAMembershipProvider, ShinyAnt" connectionStringName ="ShinyAntConnectionString" applicationName="MyApp" /> </providers> </membership> <roleManager defaultProvider="SARoleProvider" enabled="true" cacheRolesInCookie="true"> <providers> <clear/> <add name="SARoleProvider" type="ShinyAnt.Membership.SARoleProvider" connectionStringName ="ShinyAntConnectionString" applicationName="MyApp" /> </providers> </roleManager> Is there any method that I forgot to implement that is dealing with this problem or it is something else?

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