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  • asp mvc textreader

    - by czuroski
    Hello, I am trying to use a textreader to retrieve data from a text file on a local machine. I have an upload routine to get the file for the reader to open. When I run the application locally, it works fine. When I publish my application to my server, I am getting a Could not find a part of the path error. I assume this error has to do with permission in that the server cannot read from the local file system, but I don't know the proper way to remedy this. do I set up the application to impersonate the user? I know I can't possibly set up each local users machine to allow the iusr account to access it. Thanks for any thoughts.

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  • Dynamic column width

    - by nCdy
    protected void GridView1_DataBound(object sender, EventArgs e) { GridView1.Columns[0].ItemStyle.Width = 400; <asp:GridView ID="GridView1" runat="server" DataSourceID="ObjectDataSource1" ObjectDataSource1 returns data table , but I can't find any width property there , so I guess there is GridView side option but even on data bound there is like no columns ... protected void GridView1_DataBound(object sender, EventArgs e) { if (GridView1.Columns.Count!=0) GridView1.Columns[0].ItemStyle.Width = 800;

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  • Handling MVC2 variables with hyphens in their name

    - by Jaxidian
    I'm working with some third-party software that creates querystring parameters with hyphens in their names. I was taking a look at this SO question and it seems like their solution is very close to what I need but I'm too ignorant to the underlying MVC stuff to figure out how to adapt this to do what I need. Ideally, I'd like to simply replace hyphens with underscores and that would be a good enough solution. If there's a better one, then I'm interested in hearing it. An example of a URL I want to handle is this: http://localhost/app/Person/List?First-Name=Bob with this Controller: public ActionResult List(string First_Name) { {...} } To repeat, I cannot change the querystring being generated so I need to support it with my controller somehow. But how? For reference, below is the custom RouteHandler that is being used to handle underscores in controller names and action names from the SO question I referenced above that we might be able to modify to accomplish what I want: public class HyphenatedRouteHandler : MvcRouteHandler { protected override IHttpHandler GetHttpHandler(RequestContext requestContext) { requestContext.RouteData.Values["controller"] = requestContext.RouteData.Values["controller"].ToString().Replace("-", "_"); requestContext.RouteData.Values["action"] = requestContext.RouteData.Values["action"].ToString().Replace("-", "_"); return base.GetHttpHandler(requestContext); } }

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  • My pay pal button will not link to pay pal. It only refreshes page, why?

    - by JPJedi
    I have the following code in my registration page to go to a paypal button. But when I click on the button it just refreshes the page. Is their something I am missing? I should be able to include a paypal button on an aspx page right? <asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server"> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server"> <asp:Panel runat="server" ID="pnlRegisterPage" CssClass="registerPage"> <table> <tr> <td><p>Plain text</p></td> <td> <form action="https://www.paypal.com/cgi-bin/webscr" method="post"> <input type="hidden" name="cmd" value="_s-xclick"> <input type="hidden" name="hosted_button_id" value="Z8TACKRHQR722"> <table> <tr><td><input type="hidden" name="on0" value="Registration Type">Registration Type</td></tr><tr><td><select name="os0"> <option value="Team">Team $80.00</option> <option value="Individual">Individual $40.00</option> </select> </td></tr> </table> <input type="hidden" name="currency_code" value="USD"> <input type="image" src="https://www.paypal.com/en_US/i/btn/btn_buynowCC_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online!"> <img alt="" border="0" src="https://www.paypal.com/en_US/i/scr/pixel.gif" width="1" height="1"> </form> </td> </tr> </table> </asp:Panel> </asp:Content> Master Page <body> <form id="form1" runat="server"> <asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server"> </asp:ToolkitScriptManager> <div class="masterbody"> <center> <asp:Image runat="server" ID="imgLogo" ImageUrl="" /></center> <div class="menubar"> <div class="loginview"> <asp:LoginView ID="MenuBar" runat="server"> <AnonymousTemplate> </AnonymousTemplate> <LoggedInTemplate> </LoggedInTemplate> </asp:LoginView> </div> </div> <div> <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server"> </asp:ContentPlaceHolder> </div> </div> <div class="footer"></div> </form> </body>

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  • Is AsParallel() good practice in a web environment?

    - by Bjorn Bailleul
    I have no doubt that for client applications, AsParallel() will bring some out-of-the-box performance gains. But what if I would use it in a web environment. Let's say I have a widget framework that loops over all widgets to get their data and render output. This would parallelize great no? I do have my doubts on using AsParallel() in this scenario. What if I have a large number of visitors for my site, isn't IIS going to use multiple threads to handle all requests? Aren't there going to be locking issues presented after a while, or threads dying because all processors are in use? It's just a thought, what do you think about this?

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  • Convert a generic list to an array

    - by Freewind
    I have searched for this, but unfortunately, I don't get the correct answer. class Helper { public static <T> T[] toArray(List<T> list) { T[] array = (T[]) new Object[list.size()]; for (int i = 0; i < list.size(); i++) { array[i] = list.get(i); } return array; } } Test it: public static void main(String[] args) { List<String> list = new ArrayList<String>(); list.add("abc"); String[] array = toArray(list); System.out.println(array); } But there is an error thrown: Exception in thread "main" java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to [Ljava.lang.String; at test.Helper.main(Helper.java:30) How to solve this?

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  • C# to VB question

    - by Jim
    Hi, I can achieve in VB what the following C# snippet does but it seems very clunky since I perform a Linq query to obtain the events for the relevant user. Is there a neat way? ctx.FetchEventsForWhichCurrentUserIsRegistered((op) => { if (!op.HasError) { var items = op.Value; _currentUserRegisteredEventIds = new HashSet<int>(items); UpdateRegistrationButtons(); } }, null); } else { _currentUserRegisteredEventIds = null; UpdateRegistrationButtons(); }

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  • Casting to generic type in Java doesn't raise ClassCastException?

    - by Kip
    I have come across a strange behavior of Java that seems like a bug. Is it? Casting an Object to a generic type (say, K) does not throw a ClassCastException even if the object is not an instance of K. Here is an example: import java.util.*; public final class Test { private static<K,V> void addToMap(Map<K,V> map, Object ... vals) { for(int i = 0; i < vals.length; i += 2) map.put((K)vals[i], (V)vals[i+1]); //Never throws ClassCastException! } public static void main(String[] args) { Map<String,Integer> m = new HashMap<String,Integer>(); addToMap(m, "hello", "world"); //No exception System.out.println(m.get("hello")); //Prints "world", which is NOT an Integer!! } }

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  • C# Get Type of IEnumerable<TModel>

    - by Jimbo
    I have a method to which I pass an IEnumerable<TModel>. Then depending on the type of TModel, the method carries out a set of instructions as below: public void MyMethod<TModel>(IEnumerable<TModel> items) where TModel : class { int operationType; switch (typeof(TModel)) { case typeof(MyModelOne): operationType = 1; break; case typeof(MyModelTwo): operationType = 2; break; case typeof(MyModelThree): operationType = 3; break; default: throw new Exception("The collection model passed to MyMethod is not recognized"); } ... } This doesnt work, I get the error: There is no application variable or memeber 'TModel'

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  • Conversion failed: SqlParameter and DateTime

    - by Tim
    I'm changing old,vulnerable sqlcommands with SqlParameters but get a SqlException: System.Data.SqlClient.SqlException {"Conversion failed when converting datetime from character string."} on sqlCommand.ExecuteScalar() Dim sqlString As String = _ "SELECT TOP 1 " & _ "fiSL " & _ "FROM " & _ "tabData AS D " & _ "WHERE " & _ "D.SSN_Number = '@SSN_Number' " & _ "AND D.fiProductType = 1 " & _ "AND D.Repair_Completion_Date > '@Repair_Completion_Date' " & _ "ORDER BY " & _ "D.Repair_Completion_Date ASC" Dim obj As Object Dim sqlCommand As SqlCommand Try sqlCommand = New SqlCommand(sqlString, Common.MyDB.SqlConn_RM2) sqlCommand.CommandTimeout = 120 sqlCommand.Parameters.AddWithValue("@SSN_Number", myClaim.SSNNumber) sqlCommand.Parameters.AddWithValue("@Repair_Completion_Date", myClaim.RepairCompletionDate) If Common.MyDB.SqlConn_RM2.State <> System.Data.ConnectionState.Open Then Common.MyDB.SqlConn_RM2.Open() obj = sqlCommand.ExecuteScalar() Catch ex As Exception Dim debug As String = ex.ToString Finally Common.MyDB.SqlConn_RM2.Close() End Try myClaim.RepairCompletionDate is a SQLDateTime. Do i have to remove the quotes in the sqlString to compare Date columns? But then i dont get a exception but incorrect results.

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  • Calling a method with an instance of derived class of derived generic type

    - by madsbirk
    Okay, so I have classes class B<T> : A<T> class L : K and a method void Method(A<K> a) {...} What I would like to do is this b = new B<L>(); Method(b); //error But it is not possible to b to the correct type. Indeed it is not possible to make this cast A<K> t = new A<L>(); //error I would really like to not have to change the internals of Method. I have no problems making changes to B and/or L. Do I have any options for making some sort of workaround? I guess it should be possible for Method to execute all of its method calls etc. on b, since B derives from A and L derives from K?

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  • Why does a function that takes IEnumerable<interface> not accept IEnumerable<class>?

    - by Matt Whitfield
    Say, for instance, I have a class: public class MyFoo : IMyBar { ... } Then, I would want to use the following code: List<MyFoo> classList = new List<MyFoo>(); classList.Add(new MyFoo(1)); classList.Add(new MyFoo(2)); classList.Add(new MyFoo(3)); List<IMyBar> interfaceList = new List<IMyBar>(classList); But this produces the error: `Argument '1': cannot convert from 'IEnumerable<MyFoo>' to 'IEnumerable<IMyBar>' Why is this? Since MyFoo implements IMyBar, one would expect that an IEnumerable of MyFoo could be treated as an IEnumerable of IMyBar. A mundane real-world example being producing a list of cars, and then being told that it wasn't a list of vehicles. It's only a minor annoyance, but if anyone can shed some light on this, I would be much obliged.

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  • Is it possible to utilize internal methods on controllers to reduce duplication?

    - by Maslow
    in a partial view I have the following: <%Html.RenderAction(MVC.User.GetComments(Model.UserGroupName)); %> can I render a Controller's PartialViewResult in a View without going through routing so I can pass arguments directly from the model so that the arguments I'm passing to the controller never get sent to the user or seen by the user? Currently the method I'm showing at the top throws an exception because no overload is public. I've got it marked as internal so that a user can not access it, only the rendering engine was my intent.

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  • Appending data into Listview control results

    - by strakastroukas
    In my webpage i use the following in order filling the listview control <asp:ListView ID="ListView1" runat="server"> <layouttemplate> <asp:PlaceHolder id="itemPlaceholder" runat="server" /></layouttemplate> <ItemTemplate> <tr> <td><asp:Label ID="Label1" runat="server" Text = '<%# DataBinder.Eval(Container.DataItem, "Ans1") %>' Visible = '<%# DataBinder.Eval(Container.DataItem, "Ans1Visible") %>'></asp:Label> <br /> <asp:Label ID="Label2" runat="server" Text = '<%# DataBinder.Eval(Container.DataItem, "Ans2") %>' Visible = '<%# DataBinder.Eval(Container.DataItem, "Ans2Visible") %>'></asp:Label> <br /> <asp:Label ID="Label3" runat="server" Text = '<%# DataBinder.Eval(Container.DataItem, "Ans3") %>' Visible = '<%# DataBinder.Eval(Container.DataItem, "Ans3Visible") %>'></asp:Label> <br /> <asp:Label ID="Label4" runat="server" Text = '<%# DataBinder.Eval(Container.DataItem, "Ans4") %>' Visible = '<%# DataBinder.Eval(Container.DataItem, "Ans4Visible") %>'></asp:Label> <br /> <asp:Label ID="Label5" runat="server" Text = '<%# DataBinder.Eval(Container.DataItem, "Ans5") %>' Visible = '<%# DataBinder.Eval(Container.DataItem, "Ans5Visible") %>'></asp:Label> <br /> <asp:Label ID="Label6" runat="server" Text = '<%# DataBinder.Eval(Container.DataItem, "Ans6") %>' Visible = '<%# DataBinder.Eval(Container.DataItem, "Ans6Visible") %>'></asp:Label> </td> </tr> </ItemTemplate> </asp:ListView> Now i would like to add numbers to the labels before they are rendered. For example currently the data displayed are like Tennis Football Basketball Nfl Nba Polo and the output i would like to have is 1. Tennis 2. Football 3. Basketball 4. Nfl 5. Nba 6. Polo Could i use ListView1_ItemCreated or the ListView1_ItemDataBound event to achieve this? If that is true, could you point me a place to start?

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  • Why won't my anonymous function fire on grid.prerender?

    - by adam0101
    In my gridview I have fields for inserting a new record in the footer. In my objectdatasource selecting event if no records came back I bind a single mock row to force the footer to show so they can still add records. Since the row does not contain real data I hide the row. ... If result.ItemCount = 0 Then result = mockRow AddHandler mygridview.PreRender, AddressOf HideRow End If End Sub Private Sub HideRow(ByVal sender as Object, ByVal e as EventArgs) mygridview.Rows(0).Visible = False End Sub This works fine. However, I'd like to condense it like this: ... If result.ItemCount = 0 Then result = mockRow AddHandler mygridview.PreRender, Function() mygridview.Rows(0).Visible = False End If End Sub This compiles fine, but the row doesn't get hidden. Can anyone tell me why my anonymous function isn't getting hit?

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  • Visual Studio confused by server code inside javascript

    - by Felix
    I ran into an annoying problem: the following code gives a warning in Visual Studio. <script type="text/javascript"> var x = <%: ViewData["param"] %>; </script> The warning is "Expected expression". Visual Studion gets confused, and all the javascript code after that is giving tons of warnings. Granted, it's all warnings, and it works perfectly fine in runtime - but it is very easy to miss real warnings among dozen of false positives. It was working the same way in VS2008, and it wasn't fixed in VS2010. Does anybody know if there is a workaround, or a patch?

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  • Prevent change of hidden field

    - by er-v
    What if I have ChangePassword form with hidden ID field of the user. BadPerson knows id of GoodPerson. He opens Change Password form with FireBug, changes his Id to GoodPerson's Id, so password changes for GoodPerson. Of course I can create some server logic that will prevent this, but I think there should be some out of the box solution, wich throws if hidden field been changed, wich I don't know. Thank's in advance.

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  • How do I load an XML document, add and remove nodes, then apply it to a ASP DataGrid control?

    - by JFOX
    I have a pretty simple operation but am struggling with how to implement it. I am loading XML from an external data source using a DataSet.ReadXml(), the creating a new XMLDataDocument from that data set, then syncing the Dataset back to the XMLDataDocument like so: doc = new XmlDataDocument(dsDataSet); dsDataSet.EnforceConstraints = false; dsDataSet= doc.DataSet; Once loaded I do two things to the XmlDataDocument: Loop through and check if a purely meta node, count, exists right beneath the root node and if so remove it. a thumb node exists in a second level nodelist and if not, create and append it. This is all going a expected because the result of doc.save() looks correct. Where I'm having an issue is updating the Dataset, which is being applied as the data source for an ASP DataGrid. Once all the above XMLDoc manipaulation is done I do this: dsDataSet.Merge(doc.DataSet); dsDataSet.AcceptChanges(); I then apply the data set to the grid control: dgList.DataSource = dsDataSet; dgList.DataBind(); But, when I do this I get this error on the site: System.Web.HttpException: DataBinding: 'System.Data.DataRowView' does not contain a property with the name 'thumb'. What did I miss?

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  • Moving MVC2 Helpers to MVC3 razor view engine

    - by Dai Bok
    Hi, In my MVC 2 site, I have an html helper, that I use to add javascripts for my pages. In my master page I have the main javascripts I want to include, and then in the aspx pages, I include page specific javascripts. So for example, my Site.Master has something like this: .... <head> <%=html.renderScripts() %> </head> ... //core scripts for main page <%html.AddScript("/scripts/jquery.js") %> <%html.AddScript("/scripts/myLib.js") %> .... Then in the child aspx page, I may also want to include other scripts. ... //the page specific script I want to use <% html.AddScript("/scripts/register.aspx.js") %> ... So when the full page gets rendered the javascript files are all collected and rendered in the head by sitemaster placeholder function RenderScripts. This works fine. Now with MVC 3 and razor view engine, they layout pages behave differently, because now my page level javascripts are not rendered/included. Now all I see the LayoutMaster contents. How do I get the solution wo workwith MVC 3 and the razor view engine. (The helper has already been re-written to return a HTMLString ;-)) For reference: my MasterLayout looks like this: ... ... <head> @{ Html.AddJavaScript("/Scripts/jQuery.js"); Html.AddJavaScript("/Scripts/myLib.js"); } //Render scripts @html.RenderScripts() </head> .... and the child page looks like this: @{ Layout = "~/Views/Shared/MasterLayout.cshtml"; ViewBag.Title = "Child Page"; Html.AddJavaScript("/Scripts/register.aspx.js"); } .... <div>some html </div> Thanks for your help. Edit = Just to explain, if this question is not clear enough. When producing a "page" I collect all the javascript files the designers want to use, by using the html.addJavascript("filename.js") and store these in a dictionary - (1) stops people adding duplicate js files - then finally when the page is ready to render, I write out all the javascript files neatly in the header. (2) - this helper helps keep JS in one place, and prevents designers from adding javascript files all over the place. This used to work fine with Master/SiteMaster Pages in mvc 2. but how can I achieve this with razor?

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  • Register and Resolve Generic Interfaces Unity

    - by user1643791
    I am trying to register some generic interfaces and resolve them . I have the registering function private static void RegisterFolderAssemblies(Type t,string folder) { var scanner = new FolderGenericInterfaceScanner(); var scanned = scanner.Scan(t,folder); // gets the implementations from a specific folder scanned.ForEach(concrete => { if (concrete.BaseType != null || concrete.IsGenericType) { myContainer.RegisterType(t, Type.GetType(concrete.AssemblyQualifiedName), concrete.AssemblyQualifiedName); } }); } which is called by the bootstrapper with RegisterFolderAssemblies(typeof(IConfigurationVerification<>),Environment.CurrentDirectory); The registration seem to go through ok but when I try to Resolve them with Type generic = typeof(IConfigurationVerification<>); Type specific = generic.MakeGenericType(input.Arguments[0].GetType()); var verifications = BootStrap.ResolveAll(specific); The input.Arguments[0] is an object of the type the generic is implemented in I also tried using typeof(IConfigurationVerification<) instead and get the same error . When ResolveAll is public static List<object> ResolveAll(Type t) { return myContainer.ResolveAll(t).ToList(); } I get a ResolutionFailedException with them message "The current type, Infrastructure.Interfaces.IConfigurationVerification`1[Infrastructure.Configuration.IMLogPlayerConfiguration+LoadDefinitions], is an interface and cannot be constructed. Are you missing a type mapping?" Any help will be great. Thanks in advance

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  • Problem with Validate Anti Forgery

    - by Mikael Egnér
    Hi! I have a problem regarding MVC Anti forgery token. When I do my authentication I have pseudo code like this: var user = userRepository.GetByEmail(email); System.Threading.Thread.CurrentPrincipal = HttpContext.Current.User = user; by doing so I'm able to get the current user in my code like this: var user = HttpContext.Current.User as EntityUser; This works fine until I add the [ValidateAntiForgeryToken] attribute to an action. When I add the attribute I get A required anti-forgery token was not supplied or was invalid. If I comment out this line: System.Threading.Thread.CurrentPrincipal = HttpContext.Current.User = user; The antiforgery validation works fine, but the I don't have my convenient way of getting my "EntityUser" from the HttpContext. Any ideas of how to work around this? Best regards Mikael

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  • DataTable Filter mystery

    - by user283897
    Hi, could you please help me find the reason of the mystery I've found? In the below code, I create a DataTable and filter it. When I use filter1, everything works as expected. When I use filter2, everything works as expected only if the SubsectionAmount variable is less than 10. As soon as I set SubsectionAmount=10, the dr2 array returns Nothing. I can't find what is wrong. Here is the code: Imports System.Data Partial Class FilterTest Inherits System.Web.UI.Page Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Call FilterTable() End Sub Sub FilterTable() Dim dtSubsections As New DataTable Dim SectionID As Integer, SubsectionID As Integer Dim SubsectionAmount As Integer Dim filter1 As String, filter2 As String Dim rowID As Integer Dim dr1() As DataRow, dr2() As DataRow With dtSubsections .Columns.Add("Section") .Columns.Add("Subsection") .Columns.Add("FieldString") SectionID = 1 SubsectionAmount = 10 '9 For SubsectionID = 1 To SubsectionAmount .Rows.Add(SectionID, SubsectionID, "abcd" & CStr(SubsectionID)) Next SubsectionID For rowID = 0 To .Rows.Count - 1 Response.Write(.Rows(rowID).Item(0).ToString & " " _ & .Rows(rowID).Item(1).ToString & " " _ & .Rows(rowID).Item(2).ToString & "<BR>") Next SubsectionID = 1 filter1 = "Section=" & SectionID & " AND " & "Subsection=" & SubsectionID filter2 = "Section=" & SectionID & " AND " & "Subsection=" & SubsectionID + 1 dr1 = .Select(filter1) dr2 = .Select(filter2) Response.Write(dr1.Length & "<BR>") Response.Write(dr2.Length & "<BR>") If dr1.Length > 0 Then Response.Write(dr1(0).Item("FieldString").ToString & "<BR>") End If If dr2.Length > 0 Then Response.Write(dr2(0).Item("FieldString").ToString & "<BR>") End If End With End Sub End Class

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  • Why do C# automatic properties not support default values like VB 2010?

    - by Rob van Groenewoud
    Looking at the new VB 2010 features, I stumbled upon support for Auto-Implemented Properties. Since I'm working with C#, this seemed quite familiar, but I noticed that VB did add a feature I would love to have in C#: setting a arbitrary default value for the auto-implemented property: I really like the clean usage of auto-properties in C#. This would save us the effort of introducing a backing field and hooking it up to the property everytime we simply need a default value, thereby cluttering up the code unnecessarily. I was wondering why this wasn't introduced in C# as well? What could be the rationale for not doing this? Is a syntax discussion going on, or are there technical limitations to implementing this?

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