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  • RouteTable.Routes.GetVirtualPath with route data asp.net MVC 2

    - by Bill
    Dear all, I'm trying to get a URL from my routes table. Here is the method. private static void RedirectToRoute(ActionExecutingContext context, string param) { var actionName = context.ActionDescriptor.ActionName; var controllerName = context.ActionDescriptor.ControllerDescriptor.ControllerName; var rc = new RequestContext(context.HttpContext, context.RouteData); string url = RouteTable.Routes.GetVirtualPath(rc, new RouteValueDictionary(new { actionName = actionName, controller = controllerName, parameter = param })).VirtualPath; context.HttpContext.Response.Redirect(url, true); } I'm trying to map it to. However RouteTable.Routes.GetVirtualPath(rc, new RouteValueDictionary(new { actionName = actionName, controller = controllerName, parameter = param })) keeps giving me null. Any thoughts? routes.MapRoute( "default3", // Route name "{parameter}/{controller}/{action}", // URL with parameters new { parameter= "parameterValue", controller = "Home", action = "Index" } ); I know I can use redirectToAction and other methods, but I would like to change the URL in the browser with new routedata.

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  • WCF Publish/Subscribe and using callbacks to send data to specific users

    - by manemawanna
    Hello thanks for looking, I'm working on a project at the moment and have become a little stuck. I'm creating a client server app, which allows a client to subscribe to the server to have messages forwarded to it. The issue I'm having is that when the client subscribes I wish for them to only recieve updates that relate to them. The system basically passes messages from a SQL server DB which the server monitors. When a new message is recieved the server should only forward the message to the clients that it applys to, based on whos logged on the client machine. I've had a look and found code samples which sign up for messages to be broadcast across all clients who have subscribed, but not any that show how to identify individual clients and if messages apply to them. If anyone could help or point me in the right direction it would be appreciated. You can now find some of my code below: namespace AnnouncementServiceLibrary { [ServiceContract(CallbackContract = typeof(IMessageCallback))] public interface IMessageCheck { [OperationContract] void MessageCheck(); } } namespace AnnouncementServiceLibrary { public interface IMessageCallback { [OperationContract(IsOneWay = true)] void OnNewMessage(Mess message); } } public bool Subscribe() { try { IMessageCallback callback = OperationContext.Current.GetCallbackChannel<IMessageCallback>(); //If they dont already exist in the subscribers list, adds them to it if (!subscribers.Contains(callback)) subscribers.Add(callback); return true; } catch { //Otherwise if an error occurs returns false return false; } } Subscribe/Unsubscribe: private static readonly List<IMessageCallback> subscribers = new List<IMessageCallback>(); /// <summary> /// Unsubscribes the user from recieving new messages when they become avaliable /// </summary> /// <returns>Returns a bool that indicates whether the operation worked or not</returns> public bool Unsubscribe() { try { IMessageCallback callback = OperationContext.Current.GetCallbackChannel<IMessageCallback>(); //If they exist in the list of subscribers they are then removed if (subscribers.Contains(callback)) subscribers.Remove(callback); return true; } catch { //Otherwise if an error occurs returns false return false; } } Finally this at the moment isnt't working as basically when a user subscribes as it loops through I want it to filter based on the users userID: #region IMessageCheck Members /// <summary> /// This method checks for new messages recieved based on those who have subscribed for the service /// </summary> public void MessageCheck() { //A continuous loop to keep the method going while(true) { //Changes the thread to a sleep state for 2 mins? Thread.Sleep(200000); //Go through each subscriber based on there callback information subscribers.ForEach(delegate(IMessageCallback callback) { //Checks if the person who wanted the callback can still be communicated with if (((ICommunicationObject)callback).State == CommunicationState.Opened) { //Creates a link to the database and gets the required information List<Mess> mess = new List<Mess>(); List<Message> me; List<MessageLink> messLink; AnnouncementDBDataContext aDb = new AnnouncementDBDataContext(); me = aDb.Messages.ToList(); messLink = aDb.MessageLinks.ToList(); //Query to retrieve any messages which are newer than the time when the last cycle finished var result = (from a in messLink join b in me on a.UniqueID equals b.UniqueID where b.TimeRecieved > _time select new { b.UniqueID, b.Author, b.Title, b.Body, b.Priority, a.Read, b.TimeRecieved }); //Foreach result a new message is created and returned to the PC that subscribed foreach (var a in result) { Mess message = new Mess(a.UniqueID, a.Author, a.Title, a.Body, a.Priority, (bool)a.Read, a.TimeRecieved); callback.OnNewMessage(message); } } //If the requesting PC can't be contacted they are removed from the subscribers list else { subscribers.Remove(callback); } }); //Sets the datetime so the next cycle can measure against to see if new messages have been recieved _time = DateTime.Now; } } #endregion

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  • Edit/Access data from a CheckBox column in an ASPX:GridView - c#

    - by Endo
    Hi, I have a GridView to which I bind a dataTable I manually create. Both the GridView and the dataTable contain 2 columns, Name and isBusy. My GridView looks like this <Columns> <asp:BoundField HeaderText="Name" DataField="Name" SortExpression="Name"> </asp:BoundField> <asp:CheckBoxField DataField="isBusy" HeaderText="Busy" SortExpression="isBusy" /> </Columns> That works fine, except that the Busy column is non-editable unless you set a specific row to edit mode. I require the entire column of checkboxes to be checkable. So I converted the column to a template, and so the columns look like this: <Columns> <asp:BoundField HeaderText="Name" DataField="Name" SortExpression="Name"> </asp:BoundField> <asp:TemplateField HeaderText="Busy" SortExpression="isBusy"> <ItemTemplate> <asp:CheckBox ID="isBusy" runat="server" Checked='<%# Eval("isBusy") %>' oncheckedchanged="CheckBoxBusy_CheckedChanged" /> </ItemTemplate> </asp:TemplateField> </Columns> Now, this throws an error at runtime, saying System.InvalidCastException was unhandled by user code Message="Specified cast is not valid." Source="App_Web_zzjsqlrr" StackTrace: at ASP.proyectos_aspx.__DataBinding__control24(Object sender, EventArgs e) in c:\Proyect\Users.aspx:line 189 at System.Web.UI.Control.OnDataBinding(EventArgs e) at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding) at System.Web.UI.Control.DataBind() at System.Web.UI.Control.DataBindChildren() InnerException: Any idea why this is happening? The next step I would need is to know how to set and get a checkbox's state (haven't been able to find how to manually check a checkbox). I appreciate very much any help.

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  • Storing Data from both POST variables and GET parameters

    - by Ali
    I want my python script to simultaneously accept POST variables and query string variables from the web address. The script has code : form = cgi.FieldStorage() print form However, this only captures the post variables and no query variables from the web address. Is there a way to do this? Thanks, Ali

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  • [C#] WebClient - Upload data, get stream

    - by Barguast
    I have a situation where I want to asynchronously write a series of bytes with WebClient (in much the same way as UploadDataAsync) and get a readable response stream (in the same way as OpenReadAsync). You seem to be able to do the two individually, but not both of them together. Is there a way? Thanks!

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  • Advice on database design / SQL for retrieving data with chronological order

    - by Remnant
    I am creating a database that will help keep track of which employees have been on a certain training course. I would like to get some guidance on the best way to design the database. Specifically, each employee must attend the training course each year and my database needs to keep a history of all the dates on which they have attend the course in the past. The end user will use the software as a planning tool to help them book future course dates for employees. When they select a given employee they will see: (a) Last attendance date (b) Projected future attendance date(i.e. last attendance date + 1 calendar year) In terms of my database, any given employee may have multiple past course attendance dates: EmpName AttandanceDate Joe Bloggs 1st Jan 2007 Joe Bloggs 4th Jan 2008 Joe Bloggs 3rd Jan 2009 Joe Bloggs 8th Jan 2010 My question is what is the best way to set up the database to make it easy to retrieve the most recent course attendance date? In the example above, the most recent would be 8th Jan 2010. Is there a good way to use SQL to sort by date and pick the MAX date? My other idea was to add a column called ‘MostRecent’ and just set this to TRUE. EmpName AttandanceDate MostRecent Joe Bloggs 1st Jan 2007 False Joe Bloggs 4th Jan 2008 False Joe Bloggs 3rd Jan 2009 False Joe Bloggs 8th Jan 2010 True I wondered if this would simplify the SQL i.e. SELECT Joe Bloggs WHERE MostRecent = ‘TRUE’ Also, when the user updates a given employee’s attendance record (i.e. with latest attendance date) I could use SQL to: Search for the employee and set the MostRecent value to FALSE Add a new record with MostRecent set to TRUE? Would anybody recommended either method over the other? Or do you have a completely different way of solving this problem?

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  • Problem with cascade delete using Entity Framework and System.Data.SQLite

    - by jamone
    I have a SQLite DB that is set up so when I delete a Person the delete is cascaded. This works fine when I manually delete a Person (all records that reference the PersonID are deleted). But when I use Entity Framework to delete the Person I get an error: System.InvalidOperationException: The operation failed: The relationship could not be changed because one or more of the foreign-key properties is non-nullable. When a change is made to a relationship, the related foreign-key property is set to a null value. If the foreign-key does not support null values, a new relationship must be defined, the foreign-key property must be assigned another non-null value, or the unrelated object must be deleted. I don't understand why this is occurring. My trigger is set to clean up all related objects before deleting the object it was told to delete. When I go into the model editor and check the properties of the relationship it shows no action for the OnDelete property. Why isn't this set correctly by pulling it from the DB? If I change this value to Cascade everything works properly, but I would rather not rely on this manual change because what if I refresh my model from the DB and it looses that. Here's the relivent SQL for my tables. CREATE TABLE [SomeTable] ( [SomeTableID] INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, [PersonID] INTEGER NOT NULL REFERENCES [Person](PersonID) ON DELETE CASCADE ) CREATE TABLE [Person] ( [PersonID] INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT )

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  • jsTree async with preloaded data.

    - by Paul Knopf
    I am trying to make a tree view be async. When the page is rendered, there is default tree items displayed. jsTree tries to reload the root anyway. I want the page to render (with jsTree init'ed) with default items rendered from browser, not the ajax call. Then we the user tries to go deeper, thats when I want to do do the ajax calls. Any help is appreciated. Thanks!

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  • asp.net MVC DisplayTemplates and EditorTemplate naming convention

    - by Simon G
    Hi, I've got a couple of questions about the naming convention for the DisplayTemplates and EditorTemplates in MVC 2. If for example I have a customer object with a child list of account how do I: Create a display template for the list of accounts, what is the file called? When I'm doing a foreach( var c in Model.Accounts ) how do I call a display temple while in the foreach loop? When I do Html.DisplayFor( x => x ) inside the foreach x is the model and not in this case c. Thanks in advance.

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  • automation of data format conversion to parent child format

    - by silverkid
    This is an excel sheet which has only a single column filled for each row. (explanation : all CITY categories fall under V21 , all handset categories fall under CityJ and so on ) V21 CITYR CITYJ HandsetS HandsetHW HandsetHA LOWER_AGE<=20 LOWER_AGE>20 SMS_COUNT<=0 RECHARGE_MRP<=122 RECHARGE_MRP>122 SMS_COUNT>0 I need to change this format to a double column format with parent and child category format. therefore the output sheet would be V21 CITYR V21 CITYJ CITYJ HandsetS CITYJ HandsetHW CITYJ HandsetHA HandsetHA LOWER_AGE<=20 HandsetHA LOWER_AGE>20 LOWER_AGE>20 SMS_COUNT<=0 SMS_COUNT<=0 RECHARGE_MRP<=122 SMS_COUNT<=0 RECHARGE_MRP>122 LOWER_AGE>20 SMS_COUNT>0 the datas are huge so i cant do them manually . how can i automate this ?

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  • extract a specific part from a html document , php cURL , php, preg_match

    - by user331071
    Hello ! I'm trying to extract some information from a webpage using php cURL+preg_match or any other function but for some reasons it doesn't work at all . For example from this page http://www.foxtons.co.uk/search?location_ids=1001-29&property_id=712128&search_form=map&search_type=LL&submit_type=search I want to extract the title which is "4 bed house to rent, Caroline Place, Bayswater, W2", the price which is "2,300" and the description which starts at "This fantastic..." and ends at "(Circle and District Lines). " I tried to use php cURL + dom but I'm getting a lot of errors like this "htmlParseEntityRef: expecting ';' in Entity, line: 243" and no result displayed Also I tried to use preg_match or preg_match_all but doesn't work either . A very basic example would be highly appreciated ! thank you !

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  • Screen Scraping - how to get AJAX based filtered data

    - by Muhammad Akhtar
    hi, I am working on screen scraping, its easy when filteration in query string, but the problem in AJAX based filteration, e.g. here is an sample URL When you open this page, enter hotel name and click Go, Ajax filter work and show the result accordingly or you click on Next Page, it will shown next record using AJAX based. please suggest me, how to handle these kind of issues when working in Screen Scraping? Thank alot

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  • php, curl , php curl , multipart/form-data , upload picture redirect

    - by Michael
    I'm trying to upload some pictures using php cURL on a classified ad website .I think that I set all the parameters properly but I see that there is a kind of redirect after I post the picture . The issue is that the url where I'm getting redirected gives 404 error instead to return the html that it does when I make the post with a normal browser . here is the php code that I have so far " $URL = "http://api.classistatic.com/api/image/upload"; $s = "PAD001"; $v = "2"; $n = "k"; $a = "1:a126581b8150ddc1337cabce28f2feb53849fd143bd6e42649f90175c0e023e3"; $u = "@/var/www/html/artwork/tmp/!BszBLV!EGk~$(KGrHqEOKicEvMi8HVg(BL5ZbWvs0g~~_1.JPG"; $htmlContent = $baseClass-processPicturerequest($URL, $s, $v, $b, $n, $a, $u); The log from server is as following : http://pastebin.com/gZqPgsFX

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  • Serving east/west coasts with Geoipdns and MaxMind GeoLite data

    - by netvope
    I want to serve east (west) coast visitors with my Virginia (California) server. To do so, I plan to use Geoipdns and the IP-to-location mappings from MaxMind. MaxMind provide two datasets for free: GeoLite Country and GeoLite City. However, neither of them has east/west coast regions defined. A possible solution is to write a script to combine all the IP ranges for the east/west coast cities in GeoLite City, but that sounds a little bit stupid. What is the best practice in doing this? Any suggestions or alternatives?

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  • Read half precision float (float16 IEEE 754r) binary data in matlab

    - by Michael
    you have been a great help last time, i hope you can give me some advise this time, too. I read a binary file into matlab with bit16 (format = bitn) and i get a string of ones and zeros. bin = '1 00011 1111111111' (16 bits: 1. sign, 2-6. exponent, 7-16. mantissa) According to ftp://www.fox-toolkit.org/pub/fasthalffloatconversion.pdf it can be 'converted' like out = (-1)^bin(1) * 2^(bin(2:6)-15) * 1.bin(7:16) [are exponent and mantissa still binary?] Can someone help me out and tell me how to deal with the 'eeeee' and '1.mmmmmmmmmm' as mentioned in the pdf, please. Thanks a lot! Michael

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  • Problem deleting record using Entity Framework and System.Data.SQLite

    - by jamone
    I have a SQLite DB that is set up so when I delete a Person the delete is cascaded. This works fine when I manually delete a Person (all records that reference the PersonID are deleted). But when I use Entity Framework to delete the Person I get an error: System.InvalidOperationException: The operation failed: The relationship could not be changed because one or more of the foreign-key properties is non-nullable. When a change is made to a relationship, the related foreign-key property is set to a null value. If the foreign-key does not support null values, a new relationship must be defined, the foreign-key property must be assigned another non-null value, or the unrelated object must be deleted. I don't understand why this is occurring. My trigger is set to clean up all related objects before deleting the object it was told to delete. When I go into the model editor and check the properties of the relationship it shows no action for the OnDelete property. Why isn't this set correctly by pulling it from the DB? Here's the relivent SQL for my tables. CREATE TABLE [SomeTable] ( [SomeTableID] INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, [PersonID] INTEGER NOT NULL REFERENCES [Person](PersonID) ON DELETE CASCADE ) CREATE TABLE [Person] ( [PersonID] INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT )

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  • Why might changes be populated from one NSManagedObjectContext to another without an explicit merge?

    - by Mike Laurence
    I'm working on an object import feature that utilizes multiple threads/NSManagedObjectContexts, using http://www.mac-developer-network.com/columns/coredata/may2009/ as my guide (note that I am developing for iPhone). For some reason, when I save one of my contexts the other is immediately updated with the changes, even though I have commented out my calls to mergeChangesFromContextDidSaveNotification. Are there any reasons the contexts might be merging into one another without an explicit call? Here a log of what's going on: // 1.) Main context is saved with "Peter Gabriel" // 2.) Test context is created, begins with same contents as main context // 3.) Main context is inserted with "Spoon" // 4.) Test context is inserted with "Phoenix" // Contents at this point: CoreTest[4341:903] Artists in main context: ( "Peter Gabriel", "Spoon" ) CoreTest[4341:903] Artists in test context: ( "Peter Gabriel", "Phoenix" ) // 5.) testContext is saved // New contents of contexts: CoreTest[4341:903] Artists in main context: ( "Peter Gabriel", "Phoenix", "Spoon" ) CoreTest[4341:903] Artists in test context: ( "Peter Gabriel", "Phoenix" ) As you can see, the test context is saved midway through, and the main context suddenly has the new objects from the test context, even though I haven't performed the whole NSManagedObjectContextDidSaveNotification/mergeChangesFromContext combo. My understanding is that no changes will ever be merged unless done so explicitly... does anyone know what's going on here?

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  • google reader like architecture

    - by islam
    dear i want to make architect for application like google reader that save users feeds(rss,atoms) in database what is the best architecture i can do to make something like this ineed to know a good db desgin if i have to save something on files (xml or something) need to archive .etc hope to find some hints

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  • How to avoid the refetch of records when paging button is clicked on the radgrid.

    - by Pravin
    Iam using the radgrid, in my web application. Iwant to avoid the refetch of records when paging button is clicked on the radgrid. I have a method SetTodaysAlerts which gets near about 100 records and binds to my radgrid. The page size of the radgrid is 10, hence First, Next, Previous and Last buttons are available. When I click the next button how can I avoid the re fetching of the records again. FYI: Iam using the radgrid_NeedDataSource event which does the datafetch again when any navigatin button is clicked on the radgrid.

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  • Load CoreData objects' string property into UIPickerView

    - by OscarTheGrouch
    Hello Currently I have an entity named "Events" in a CoreData app. "Events" has one string property named "eventName". In the -(void)viewDidLoad I am trying to Fetch all the "Events" objects and load their "eventName" by alphabetical order into a UIPickerView. The ultimate end goal is through the use of a textField, buttons and the pickerView being add new objects in and remove unwanted objects out. Basically turning the UIPickerView into a UITableView. Currently I am able to save objects to the CoreData store, but am not able to pull them/their properties out into the UIPickerView. I am willing and able to share the project source code to anyone who wants it, or is willing to look at it to help out. thanks Chris

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