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• IP Address Lookup in VB.net (XP vs Windows 7)

  - by TheHockeyGeek

  Currently I use the following code to retrieve the IP address of the local workstation... strIPAddress = System.Net.Dns.GetHostEntry(strComputerName).AddressList(0).ToString() This is fine for the Windows XP workstations. However, in Vista and Windows 7, this returns the IPv6 address which is not used at all. Is there a method of setting this to work so it always returns the IPv4 address regardless of platform? I know I can increment the AddressList value to 1 and get the correct IP in Windows 7. The bad part is that this requires going through the motions of identifying the OS and choosing one or the other. The must be some way of specifying IPv4 only. Perhaps getting a result from DNS on the network rather than the workstation itself?

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• Submitting AjaxForm with jQuery in ASP.NET MVC

  - by Hadi Eskandari

  I have an ajax form in asp.net mvc which is as simple as this: <% using (this.Ajax.BeginForm("LatestBlogPosts", "Blog", null, new AjaxOptions { UpdateTargetId = "blogPostPanel" }, new { id = "BlogPostForm" })) { %> <div class="panel" id="blogPostPanel"> <img src="/images/ajax-loader.gif" alt="ajax-loader" /> </div> <% } %> I want to invoke the form submit when document is loaded. This should supposedly, call the controller's action and return a result that should be replaced with the placeholder DIV. If I add a SUBMIT button to the form, it works perfectly, but when I invoke the submit via jQuery, the whole page is refreshed, and the content returned by the server is displayed in the newly displayed page. Here's my jQuery code: <script type="text/javascript"> $(document).ready(function() { $("#BlogPostForm").submit(); }); </script> Anyway to do this?

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• Programmatically retrieve disconnected network adapter information in .NET

  - by Soo Wei Tan

  I have an application written in C# that needs to retrieve information like IP address, subnet mask from a disconnected network adapter. I've tried using various methods such as WMI and the .NET NetworkAdapter class but they don't return any useful data when the network adapter is disconnected. I'm pretty sure Windows keeps this information somewhere, since I can apply network settings using netsh and it appears correctly in the Control Panel. One thing that worked for me in XP was to parse the output of the netsh tool and it would return information even for a disconnected adapter. However, this doesn't seem to work on Windows 7. Win XP output: Configuration for interface "Local Area Connection 5" DHCP enabled: No IP Address: 169.254.0.128 SubnetMask: 255.255.255.0 InterfaceMetric: 0 Win7 output: Configuration for interface "Local Area Connection 2" DHCP enabled: No InterfaceMetric: 5 Any ideas?

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• ASP.Net MVC view unable to see HtmlHelper extension method

  - by larryq

  Hi everyone, We're going through an ASP.Net MVC book and are having trouble with using an extenstion method within our view. The Extension method looks like this: using System; using System.Runtime.CompilerServices; using System.Web.Mvc; namespace MvcBookApplication { public static class HtmlHelperExtensions { public static string JQueryGenerator(this HtmlHelper htmlHelper, string formName, object model); } } We use the extension method in our view like this: <%=Html.JQueryGenerator("createmessage", ViewData.Model)%> The problem is, that line of code says JQueryGenerator isn't a recognized method of HtmlHelper. I believe we've got the correct references set in the web project, but are there other things we can check? There's no using statement for views, is there?

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• IIRF not working with AsP.NET PostBacks?

  - by MNT

  Hi, I have the following scenario Web server A: public on the internet, IIRF (current version) installed Web server B: on the intranet, visible to A, my APS.NET web app is installed on, name is pgdbtest3 I configure IIRF so that any request targetting directory /MMS/ on server A is redirected to the corresponding one http://pgdbtest3/MMS/. The ini file look like: StatusUrl /iirfStatus RemoteOk RedirectRule ^/MMS$ /MMS/ [I] ProxyPass ^/MMS/(.*)$ http://pgdbtest3/MMS/$1 [I] It is working fine except that any post back causes an error (404 is returned). I have tried many solutions including the removal of the action attribute from the form but with no luck. Please help!

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• ASP.NET Session expires in no time?

  - by Galilyou

  Weired problem! ASP.NET Session expires instantly. In my web.config I have this session settings: <sessionState mode="InProc" timeout="10000" /> AFAIK the timeout attribute's value is in minutes and can't be greater than 525,600 minutes (1 year). I don't understand what I am doing wrong here. Why is the session expiring. Is it a server memory issue? I don't think so, the server is pretty descent and it has only one site which isn't doing much after all. Ideas? EDIT: After setting the cookiless attribute to true, and while noticing the session id on the url, I can see that the session id CHANGING. I assume that this means the session is expiring. The IIS Settings are correct AFAIK (the enable session state checkbox is checked, and the value of the time is 20). A Picture is worth 100 words:

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• How to void authorized transaction in authorize.net gateway using ActiveMerchant

  - by m7d

  Goal: Only have successful purchases show up on a customer's billing statement. I don't want declined authorizations showing up on their billing statement (as seen in an online banking system) as pending. A customer often will accidentally input an incorrect billing address, for example, followed by a correct one. Together, the two attempts, one successful and one not both show up on their billing statement as pending prior to settlement. This can scare the customer as it looks potentially like they will be charged twice. Details: When I do an AUTH_CAPTURE (via ActiveMerchant's purchase) or an AUTH (via ActiveMerchant's authorize) which is declined and subsequently want to void that authorization (via ActiveMerchant's void) so as not to have it appear on a customer's billing statement as pending (even though it will settle out after a few days), the gateway can't find the transaction to void using the authorization code returned from the authorization or capture method calls on the gateway. This is specific to the authorize.net AIM gateway. Please advise. Thanks!

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• How do you exclude folders on get operation for sourcecontrol in CruiseControl.NET

  - by Jon

  I have a cruisecontrol.net project which currently doesn't monitor a source safe project. It is forced manually. Within the source control block however I want to be able to exclude the 'get' operation of a certain folder. I know there is a ExclusionFilter feature on a source control block in the config file, but I think that this excludes the sub folder from being monitored not from being retrieved from the repository. Can anyone confirm this is the case, or help me find out how I can achieve this? I'm using CCNet 1.4 and SourceSafe

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• Cannot use Html.ActionLink in asp.net mvc spark files

  - by midas06

  I'm using the spark view engine with my asp.net mvc application. In my aspx pages, I can succesfully use Html.Actionlink, but when I attempt it in spark files, it doesnt show up in intellisense, and when i try to run it anyway, i get: Dynamic view compilation failed. c:\Users\midas\Documents\Visual Studio 2008\Projects\ChurchMVC\ChurchMVC\Views\Home\Index.spark(73,25): error CS1061: 'System.Web.Mvc.HtmlHelper' does not contain a definition for 'ActionLink' and no extension method 'ActionLink' accepting a first argument of type 'System.Web.Mvc.HtmlHelper' could be found (are you missing a using directive or an assembly reference?) I do have system.web.mvc referenced, and I have added in _global.spark. None of that helps. Any ideas?

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• COM port cannot be opened in asp.net

  - by Pandiya Chendur

  I following this article for sending SMS it is a winform application.. I have referenced all the Dll's to my asp.net application..... I use an aspx page to detect a mobile device connected to a PC..... But it alwys shows COM 'n' Port could not be opened..... using SMS; using GsmComm.GsmCommunication; using GsmComm.PduConverter; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { GsmCommMain comm = new GsmCommMain(6, 9600, 300); comm.Open(); if (!comm.IsConnected()) { Response.Write("No Phone Connected"); } else { SmsSubmitPdu pdu = new SmsSubmitPdu("test", "+919999999999", ""); CommSetting.comm.SendMessage(pdu); } } }

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• Examples of when to use PageAsyncTask (Asynchronous asp.net pages)

  - by Tony_Henrich

  From my understanding from reading about ASP.NET asynchronous pages, the method which executes when the asynchronous task begins ALWAYS EXECUTES between the prerender and the pre-render Complete events. So because the page's controls' events run between the page's load and prerender events, is it true that whatever the begin task handler (handler for BeginAsync below) produces, it can't be used in the controls' events? So for example, if the handler gets data from a database, the data can't be used in any of the controls' postback events? Would you bind data to a data control after prerender? PageAsyncTask pat = new PageAsyncTask(BeginAsync, EndAsync, null, null, true); this.RegisterAsyncTask(pat);

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• Asp.net text box is only returning the first value

  - by queryne

  C sharp newbie question...I have a simple asp.net form that has a textbox that collects phonenumbers to send SMS messages. If I bypass the form and hardcode the numbers using the following format: "2133211234",#1233211234" the code works fine. However when i try to use this same format using my form, the sms will ONLY send to the first number. I have a feeling i'm missing out on some property on my form that will accept all of the values. also any idea how how i can add some lines of code that will allow users to enter numbers like this: 3123211234,4123212344 and have it converted to the format above when the number is submitted? Any ideas? Thanks in advance.

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• retreive POST data from FLASH to ASP.Net

  - by Martin Ongtangco

  here's my AS3 code: var jpgEncoder:JPGEncoder = new JPGEncoder(100); var jpgStream:ByteArray = jpgEncoder.encode(bitmapData); var header:URLRequestHeader = new URLRequestHeader("Content-type", "application/octet-stream"); var jpgURLRequest:URLRequest = new URLRequest("/patients/webcam.aspx"); jpgURLRequest.requestHeaders.push(header); jpgURLRequest.method = URLRequestMethod.POST; jpgURLRequest.data = jpgStream; navigateToURL(jpgURLRequest, "_self"); And here's my ASP.Net Code try { string pt = Path.Combine(PathFolder, "test.jpg"); HttpFileCollection fileCol = Request.Files; Response.Write(fileCol.Count.ToString()); foreach (HttpPostedFile hpf in fileCol) { hpf.SaveAs(pt); } } catch (Exception ex) { Response.Write(ex.Message); } im getting a weird error, HttpFox mentioned: "NS_ERROR_NET_RESET" Any help would be excellent! Thanks!

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• Strange thing about .NET 4.0 filesystem enumeratation functionality

  - by codymanix

  I just read a page of "Whats new .NET Framework 4.0". I have trouble understanding the last paragraph: To remove open handles on enumerated directories or files Create a custom method (or function in Visual Basic) to contain your enumeration code. Apply the MethodImplAttribute attribute with the NoInlining option to the new method. For example: [MethodImplAttribute(MethodImplOptions.NoInlining)] Private void Enumerate() Include the following method calls, to run after your enumeration code: * The GC.Collect() method (no parameters). * The GC.WaitForPendingFinalizers() method. Why the attribute NoInlining? What harm would inlining do here? Why call the garbage collector manually, why not making the enumerator implement IDisposable in the first place? I suspect they use FindFirstFile()/FindNextFile() API calls for the imlementation, so FindClose() has to be called in any case if the enumeration is done.

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• .net 4.0 with Code Access Security NetFx40_LegacySecurityPolicy won't work

  - by user210903

  Hi- I'm trying to use an external library DevExpress.XtraTreeList.v8.1.dll in my vsto office addin built using VS2010 beta 2. I am getting the following compile time error: DevExpress.Utils.AppareanceObject threw an exception -- System.NotSupportedException. The error message goes on to say that for compatibility reasons I can use the NetFx40_LegacySecurityPolicy switch. I've tried putting this config variable in all of the following locations: 1) my applications config file. 2) C:\Windows\Microsoft.NET\Framework\v4.0.21006\msbuild.exe.config 3) C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\dev.exe.config None of these have resolved the problem. Here were the references I've used. re-enable cas msdn.microsoft.com/en-us/library/ee191568(VS.100).aspx How do I get rid of this error so I can build the application in vs 2010?

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• Mocking User.Identity in ASP.NET MVC

  - by Trey Carroll

  I need to create Unit Tests for an ASP.NET MVC 2.0 web site. The site uses Windows Authentication. I've been reading up on the necessity to mock the HTTP context for code that deals with the HttpContext. I feel like I'm starting to get a handle on the DI pattern as well. (Give the class an attribute of type IRepository and then pass in a Repository object when you instantiate the controller.) What I don't understand, however, is the proper way to Mock the Windows Principal object available through User.Identity. Is this part of the HttpContext? Does any body have a link to an article that demonstrates this (or a recommendation for a book)? Thanks, Trey Carroll

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• asp.net 2.0 session timeout

  - by d3020

  I apologize in advance for this likely being asked before. I have an asp.net 2.0 web application and am trying to set the session timeout. My first attempt was to add this to the web.config. < sessionState mode="InProc" timeout="300" Users would tell me though that after about 20 minutes of being idle and then trying to do something again on the site they'd be redirected back to the login page. So now I'm trying timeout="60" in my < forms tag in the web.config. I also tried Session.Timeout=60 in my global.asax. Should these work? Do I need something else? Thank you for your time and help.

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• Lucene.Net support phrases?: What is best approach to tokenize comma-delimited data (atomically) in

  - by Pete Alvin

  I have a database with a column I wish to index that has comma-delimited names, e.g., User.FullNameList = "Helen Ready, Phil Collins, Brad Paisley" I prefer to tokenize each name atomically (name as a whole searchable entity). What is the best approach for this? Did I miss a simple option to set the tokenize delimiter? Do I have to subclass or write my own class that to roll my own tokenizer? Something else? ;) Or does Lucene.net not support phrases? Or is it smart enough to handle this use case automatically? I'm sure I'm not the first person to have to do this. Googling produced no noticeable solutions.

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• Injecting multi-tenant repositories with StructureMap in ASP.NET MVC

  - by FreshCode

  I'm implementing StructureMap in a multi-tenant ASP.NET MVC application to inject instances of my tenant repositories that retrieve data based on an ITenantContext interface. The Tenant in question is determined from RouteData in a base controller's OnActionExecuting. How do I tell StructureMap to construct TenantContext(tenantID); where tenantID is derived from my RouteData or some base controller property? Base Controller Given the following route: {tenant}/{controller}/{action}/{id} My base controller retrieves and stores the correct Tenant based on the {tenant} URL parameter. Using Tenant, a repository with an ITenantContext can be constructed to retrieve only data that is relevant to that tenant. Based on the other DI questions, could AbstractFactory be a solution?

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• ASP.Net WebForms requiredfieldvalidator not working in FireFox?

  - by larryq

  I have a WebForms app that uses a field validator on a dropdownlist. It works in IE but not FireFox. This is pretty straightforward stuff I'm doing. Here are the setups for the dropdown and validator: <asp:DropDownList ID ="dmbFileActNo" runat="server" CssClass="DROPDOWN_MEDIUM" AutoPostBack="True"></asp:DropDownList> <asp:requiredfieldvalidator EnableClientScript="true" id="rfvFileActNo" Display="None" ControlToValidate="dmbFileActNo" Runat="server" InitialValue="-1"></asp:requiredfieldvalidator> I'm running ASP.Net 2.0 on the web server. Javascript is enabled on the FireFox browser-- this problem happens on all FF browsers I've tested, on multiple everyday machines, so I don't believe it's due to a locked down install.

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• Bind list from FormView to model in ASP.net webforms

  - by Monty

  For a large fillin form I use the asp.net FormView for the magic databinding to my model. In this model I've a property called Rides (shown below), which exposes a list, which I obviously not want to be replaced entirely. So I made it readonly. However, this way I can't use the databinding features anymore. Is there a common solution for this problem? public IList<Ride> Rides { get { if (this._rides == null) { this._rides = new List<Ride>(); } return this._rides; } }

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• Where to get apache poi port for .net

  - by Nassign

  I would like to know if there is a website where I could download the Apache POI ported for .net? I already found this link in the web http://www.apache.org/~avik/dist/poi-2.5.1-dev-20040708.dll But the version of apache poi now is 3.6, I was wondering if there is a latest version out there? Does the apache foundation support such porting? I already tried to search the apache website too with no avail. As for using Microsoft library, the excel interopt is not that good for concurrent processing like a web backend. If I use the DocumentFormat.OpenXML library, I have a limitation of creating office 2007 document only.

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• asp.net mvc: handling no-javascript

  - by Bala R

  Hello, I'm working on a asp.net mvc2 app. I have been using jquery to do various different things in all of my views. They are work from a regular browser quite well. But I'm trying to figure out a good way to get the functionality working with browsers with javascript disabled (like mobile browsers). Is there a way to define a whole different view for non javascript browsers? A specific example of what I'm trying to do is, I have a with it's onClick calling a javascript that does $.post() to a controller. What's a good way to make it, so, it works the way it works right now (doing ajax calls) with regular javascript-enabled browsers and it a also works with javascript-incapable browsers, doing a full postback ? Thanks

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• Breaking changes in .NET 4.0

  - by Andrei Taptunov

  There is a lot of information about new features and classes in new 4.0 however there are also changes that may affect esixting applications, for example Timespan now implements IFormattable and old string.Format() with invalid options will throw exception instead of calling simple ToString(). However, CLR team provides a nice feature to enable behaviour from previous version with configuration setting - TimeSpan_LegacyFormatMode . CLR Inside Out Access to events inside the class where they are declared using += or -= will lead to call add/remove generated accessors that return void. Some code wan't even compile in 4.0. Chris Burrows Blog CAS is deprecated and to enable it one still need to use special setting in configuration - NetFx40_LegacySecurityPolicy So I wonder what are other changes and is it possible to find at least preliminary list of changes that will or may break existing functionality with release of .NET 4.0 ?

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• Global "ajax call" notification with asp.net mvc/jquery

  - by Joel Martinez

  I need to be notified any time a largeish asp.net mvc web application makes an ajax call to the server. We're using both jquery, and the built-in Ajax.* methods to do the remote calls, and I would like a global way of knowing when we make a call without having to manually inject some sort of "IsMakingCall" method to every request. The root problem we're trying to solve is session timeout. If the user leaves a page up and goes to lunch (for example), they get errors when they get back because the ajax call is returning the login page instead of the expected json or partial html result. My idea was to have a js timer which would be reset any time we make an ajax call. That way, if the timer runs out (ie. their session has now timed out) I can just auto-log them out. This is how sites like bank of america and mint.com work. Thanks!

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