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  • help with jquery ajax and templates in asp.net mvc

    - by NachoF
    So I have a complex form for an IncomeDeclaration. Its going to display a textfield GrossIncome for each Activity that the IncomeDeclaration is related to... this all gets done on the server and works just fine.... the problem is. The User should also be able to add Activities on the fly.. through javascript... so when the user clicks on Add Activity a Dropdown and a textfield must be appended to the bottom the activities list... heres what Ive got so far <tbody id="activities"> @Html.EditorFor(model => model.income.EconomicActivityIncomeDeclarations) </tbody> </table> <a href="#" id="add_activity">Agregar Otra Actividad</a> </fieldset> <script type="text/javascript"> $("#add_activity").click(function () { $.getJSON('/IncomeDeclarations/GetEconomicActivities', function (data) { var select = new Select(); var data = new Array(); for (var i = 0; i < data.length; i++) { var option = new Option(data[i]["name"], data[i]["i"]) //should do something here } //should call the template and append to #activities }); }); </script> <script id="template" type="text/x-jquery-tmpl"> <tr> <td><select name="income.EconomicActivityIncomeDeclarations[${SomeNumber}].EconomicActivityId"> ${MyOptions} </select></td> <td><input type="text" name="income.EconomicActivityIncomeDeclarations[${SomeNumber}].GrossIncome" /></td>> </tr> </script> } The name attribute for both the select and the text_field is key for this to work... otherwise modelbinding wont work... I would think that if the SomeNumber variable is set to new Date.GetTime() model Binding should work just fine... I actually dont see the need of ajax for this but thats another topic.. I just havent figured out a way to do this without ajax... right now I want to get the template to work and append the form elements to the bottom of the list.

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  • Aletrnatives to MultiView in ASP.NET

    - by remdao
    Hi The website I'm building contains a large number of views which will be displayed on the same place but hidden or shown according to how the user navigates the menu. It gets quite messy in visual studios design view when you have a MultiView with 10 different views in it. I've already separated the content of each view in several user controls. But is there an alternative to MultiView?

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  • VB.NET Debug Error

    - by Daniel
    I get this error "Illegal characters in path" for this code: Dim strm As System.IO.FileStream strm = New System.IO.FileStream(filepath, IO.FileMode.Open, IO.FileAccess.Read)

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  • Adding dynamic links using NavigateURL on ASP.NET (VB)

    - by AZIRAR
    Hello, I Have this code in my page, and I want that every NavigateUrl display another page like : simple.aspx?id=1, simple.aspx?id=2, ... Where id = c Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Dim c As Integer = 0 While c < 5 Dim Label1 As New Label() Dim ltr As New Literal() Dim link As New HyperLink() link.NavigateUrl = "simple.aspx" link.BackColor = Drawing.Color.Aqua Label1.Text = c.ToString() ltr.Text = "<br/>" PlaceHolder1.Controls.Add(Label1) PlaceHolder1.Controls.Add(link) PlaceHolder1.Controls.Add(ltr) c += 1 End While End Sub Thanks.

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  • Working with .NET Project Files and Schemas?

    - by Mitchel Sellers
    I'm working on a project that will require me to take various .vbproj and .csproj files and determine which version of Visual Studio they were built with and then to get information such as the output dll name etc. Does anyone know if there is a schema available for these files? Google and MSDN searches are coming up a bit blank.

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  • ASP.NET 2.0: Specifying an instance of an object for an ObjectDataSource

    - by Austin Salonen
    I'm using an ObjectDataSource to bind data to a GridView; it works fine except that it always creates a new object to use as a data source. I can do all the setup just fine but I cannot use an instance of an existing object to specify as the "data source" for it. Is it possible to do this? If so, how? If it's not possible, why? EDIT: Here's the gist of what's going on (object types changed): On the first page you are editting the attributes for a dog. One of the attributes is "has puppies" and if it's true, the next page you specify the names of those puppies. What's happening in my case is that those puppies are not getting linked to the original dog but to a "new" dog. (The implication that my problem is a "female dog" was coincidental. ;-) )

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  • ASP.NET MVC Model Binding

    - by Noel
    If i have a Controller Action that may recieve both HTTP GET and HTTP POST from a number of different sources with each source sending different data e.g. Source1 performs a form POST with two form items Item1 and Item2 Source2 performs a GET where the data is contained in the query string (?ItemX=2&ItemY=3) Is it possible to have a controller action that will cater for all these cases and perform binding automatically e.g. public ActionResult Test(Dictionary data) { // Do work ... return View(); } Is this possible with a custom binder or some other way? Dont want to work directly with HttpContext.Request if possible

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  • How get file names using OpenFileDialog in .NET (1000+ file multiselect)

    - by Cole
    Maybe some of you have come across this before.... I am opening files for parsing. I'm using OpenFileDialog, of course, but i'm limited to a buffer of 2048 on the .FileNames string. Thus, I can only select a few hundred files. This is OK for most cases. However, fore example, I have in one case 1400 files to open. Do you know a way to do this with the open file dialog. I just want the string array of .FileNames, I pass that to parser class. I was also thinking of offering a FolderBrowserDialog option and then I'd use some other method to just loop through all the files in a directory, like the DirectoryInfo class. I'd do this as a last resort if I can't have an all in one solution.

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  • .net MVC RenderPartial renders information that is not in the model

    - by Andreas
    Hi, I have a usercontrol that is rendering a list of items. Each row contains a unique id in a hidden field, a text and a delete button. When clicking on the delete button I use jquery ajax to call the controller method DeleteCA (seen below). DeleteCA returns a new list of items that replaces the old list. [HttpPost] public PartialViewResult DeleteCA(CAsViewModel CAs, Guid CAIdToDelete) { int indexToRemove = CAs.CAList.IndexOf(CAs.CAList.Single(m => m.Id == CAIdToDelete)); CAs.CAList.RemoveAt(indexToRemove); return PartialView("EditorTemplates/CAs", CAs); } I have checked that DeleteCA is really removing the correct item. The modified list of CAs passed to PartialView no longer contains the deleted item. Something weird happens when the partial view is rendered. The number of items in the list is reduced but it is always the last element that is removed from the list. The rendered items does not correspond to the items in the list/model sent to PartialView. In the usercontrol file (ascx) I'm using both Model.CAList and lambda expression m = m.CAList. How is it possible for the usercontrol to render stuff that is not in the model sent to PartialView? Thanx Andreas

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  • vb.net pdf reader load problem

    - by steve
    From the tools menu I have done right clickchoose itemCOM (tab) and ticked adobe pdf reader. From here I simply dragged the pdf tool onto my form. That's all I've done. Now on form load it throws a bug. "InvalidOperationException was unhandled" hovering over the message it says the following, An error occurred creating the form. See Exception.InnerException for details. The error is: Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)) Any ideas anyone? Gonna take a mastermind to work this one out seriously

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  • Slow Execution of an ASP.NET Web Page

    - by Sweta Jha
    I have a web page which brings 13K+ records in 20 seconds. There is a menu on the page, clicking on which navigates me to another page which is very lightweight. Displaying the data (13K+) took only 20 seconds whereas navigating from that page took much longer, more than 2 mins. Can you tell me why is the latter taking so much of time. I've stopped the page_load code execution on click of the menu. I've disabled the viewstate for that page as well.

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  • ASP.NET MVC - PartialView not refreshing

    - by Billy Logan
    Hello Everyone, I have a view that uses a javascript callback to reload a partial view. For whatever reason the contents of the partial class do not refresh even though i can step through the entire process and see the page being recalled and populated. Any reason why the page would not display? Code is as follows: <div id="big_image_content"> <% Html.RenderPartial("ZoomImage", Model); %> </div> This link should reload the div above: <a href="javascript:void(0)" onclick="$('#big_image_content').load('/ShopDetai/ZoomImage);" title="<%= shape.Shape %>" alt="<%= shape.Shape %>"> <img src="http://images.rugs-direct.com/<%= shape.Image.ToLower() %>" width="40" alt="<%= shape.Shape %>"> </a> partial view(ZoomImage.ascx) simplified for now, but still doesn't load: <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<RugsDirect.Data.ItemDetailsModel>" %> <%= Model.Category.ToLower()%> And finally the controller side of things: public ActionResult ZoomImage() { try { ItemDetailsModel model = GetMainImageContentModel(); return PartialView("ZoomImage", model); } catch (Exception ex) { //send the error email ExceptionPolicy.HandleException(ex, "Exception Policy"); //redirect to the error page return RedirectToAction("ViewError", "Shop"); } } Again, i can step through this entire process and all seems to be working accept for the page not reloading. I can even break on the <%= Model.Category.ToLower()% of the partial view, but it will not be displayed. Thanks in advance, Billy

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  • .NET 3.5: Dynamically adding classes without recompiling

    - by Nir
    I'd like to build an infrastructure that will monitor a server and check ping, response time, and more. The catch is that future checks (for example: does a certain file exist) will be added without recompiling the infrastructure. How do I build it in such a way that will enable me to attach inherited classes with different functionality, and execute them without recompiling? Thanks!

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  • Select All CheckBoxes in GridView ASP.NET using JQuery

    - by dexter
    I have checkBoxes in my Gridview templete columns called "Category A" and "Category B". I want Select-All functionality, i.e. when the user checks the Select-All check Box in category A column, all the checkboxes must get checked under that column. Same for Category B. I am trying with the code below. The problem with my code is, it selects all the check boxes in the entire gridview, "Category A" as well as "Category B"s checkboxes. But, I want only checkboxes selected under the same column. function SelectAllCheckboxesA(chk) { $('#<%=gvSurveys.ClientID %>').find("input:checkbox").each(function() { if (this != chk) { if ($(this).hasClass('CatA') != false) { this.checked = chk.checked; } } else { alert($(this)); } }); } <asp:GridView ID="gvSurveys" runat="server" AutoGenerateColumns="false" AllowSorting="True" Width="1500px"> <Columns> <asp:TemplateField> <HeaderTemplate>Category A <asp:CheckBox ID="chkSelectAllCatA" runat="server" Visible="false" onclick="javascript:SelectAllCheckboxesA(this);" CssClass="SACatA" /> </HeaderTemplate> <ItemTemplate> <asp:CheckBox ID="chkCatA" runat="server" Enabled="false" CssClass="CatA" /> </ItemTemplate> </asp:TemplateField> <asp:TemplateField> <HeaderTemplate> Category B <asp:CheckBox ID="chkSelectAllCatB" runat="server" Visible="false" CssClass="CatB" onclick="javascript:SelectAllCheckboxesB(this);" /> </HeaderTemplate> <ItemTemplate> <asp:CheckBox ID="chkCatB" runat="server" Enabled="false" /> </ItemTemplate> </asp:TemplateField> </Columns> </asp:GridView>

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  • How to call postback using javascript on ASP.NET form

    - by Anton
    I have a web form with textbox and button. I want after "ENTER" key click on textbox postbak form. I am using next code: onkeypress=" if(event.keyCode==13) { alert(2); WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions('ctl00$ContentPlaceHolder1$btnSearch', '', true, '', '', false, false)); alert(2); return false;} where WebForm_DoPostBackWithOptions(new WebForm_PostBackOptions('ctl00$ContentPlaceHolder1$btnSearch', '', true, '', '', false, false)); is javascript code for button event onclick. I get two alerts, but postback doesnot happen. Any ideas what is wrong?

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  • Correct way to edit and update complex viewmodel objects using asp.net-mvc2 and entity framework

    - by jslatts
    I have a table in my database with a one to many relationship to another table: ParentObject ID Name Description ChildObject ID Name Description ParentObjectID AnotherObjectID The objects are mapped into Entity Framework and exposed through a data access class. It seemed like ViewModels are recommended when the data to be displayed greatly differs from the domain object, so I created a ViewModel as follows: public class ViewModel { public IList<ParentObject> ParentObjects { get; set; } public ParentObject selectedObject { get; set; } public IList<ChildObject> ChildObjects { get; set; } } I have a view that displays a list of ParentObjects and when clicked will allow a ChildObject to be modified saved. <% using (Html.BeginForm()) { %> <table> <% foreach (var parent in Model.ParentObjects) { %> <tr> <td> ObjectID [<%= Html.Encode(parent.ID)%>] </td> <td> <%= Html.Encode(parent.Name)%> </td> <td> <%= Html.Encode(parent.Description)%> </td> </tr> <% } %> </table> <% if (Model.ParentObject != null) { %> <div> Name:<br /> <%= Html.TextBoxFor(model => model.ParentObject.Name) %> <%= Html.ValidationMessageFor(model => model.ParentObject.Name, "*")%> </div> <div> Description:<br /> <%= Html.TextBoxFor(model => model.ParentObject.Description) %> <%= Html.ValidationMessageFor(model => model.ParentObject.Description, "*")%> </div> <div> Child Objects </div> <% for (int i = 0; i < Model.ParentObject.ChildObjects.Count(); i++) { %> <div> <%= Html.DisplayTextFor(sd => sd.ChildObjects[i].Name) %> </div> <div> <%= Html.HiddenFor(sd => sd.ChildObjects[i].ID )%> <%= Html.TextBoxFor( sd => sd.ChildObjects[i].Description) %> <%= Html.ValidationMessageFor(sd => sd.ChildObjects[i].Description, "*") %> </div> <% } } } %> This all works fine. My question is around the best way to update the EF objects and persist the changes back to the database. I initially tried: [HttpPost] public ActionResult Edit(ViewModel viewModel) { ParentObject parent = myRepository.GetParentObjectByID(viewModel.SelectedObject.ID); if ((!ModelState.IsValid) || !TryUpdateModel(parent, "SelectedObject", new[] { "Name", "Description" })) { || !TryUpdateModel(parent.ChildObjects, "ChildObjects", new[] { "Name", "Description" })) { //Code to handle failure and return the current model snipped return View(viewModel); } myRepository.Save(); return RedirectToAction("Edit"); } When I try to save a change to the child object, I get this exception: Entities in 'MyEntities.ChildObject' participate in the 'FK_ChildObject_AnotherObject' relationship. 0 related 'AnotherObject' were found. 1 'AnotherObject' is expected. Investigation on StackOverflow and generally googling led me to this blog post that seems to describe my problem: TryUpdateModel() does not correctly handle nested collections. Apparently, (and stepping through the debugger confirms this) it creates a new ChildObject instead of associating with the EF objects from my instantiated context. My hacky work around is this: if (viewModel.ChildObjects.Count > 0) { foreach (ChildObject modelChildObject in viewModel.ChildObjects) { ChildObject childToUpdate = ParentObject.ChildObject.Where(a => a.ID == modelChildObject.ID).First(); childToUpdate.Name = modelChildObject.Name; } } This seems to work fine. My question to you good folks: Is there correct way to do this? I tried following the suggestion for making a custom model binder per the blog link I posted above but it didn't work (there was an issue with reflection) and I needed to get something going ASAP. PS - I tried to cleanup the code to hide specific information, so beware I may have hosed something up. I mainly just want to know if other people have solved this problem. Thanks!

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  • ASP.NET Page Caching in a Web Farm

    - by Achilles
    We have a small web farm(2 servers) balanced by the built in network load balancer in Windows 2003. We have a few pages that use page caching. My question is: Is it possible that that a given user could cause a page to be cached and another user see that content? Here is the page directive for the page in question: <%@ OutputCache Duration="1" NoStore="true" VaryByParam="none" %> The reason the duration is set to "1" is to ensure that the page isn't cached any longer than 1 second because of transactions that actions on the page can trigger.

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  • How do i judge when the NetWorkStream finishes by using .net TcpClient to communicate

    - by Hwasin
    I try to use stream.DataAvailable to judge if it is finished,but sometimes the value is false but after a little while it is true again,i have to set a counter and judge the end by the symbol '' like this int connectCounter = 0; while (connectCounter < 1200) { if (stream.DataAvailable) { while (stream.DataAvailable) { byte[] buffer = new byte[bufferSize]; int flag = stream.Read(buffer, 0, buffer.Length); string strReadXML_t = System.Text.Encoding.Default.GetString(buffer); strReadXML = strReadXML + strReadXML_t.Replace("\0", string.Empty); } if (strReadXML.Substring(strReadXML.Length - 1, 1).Equals(">")) { break; } } Thread.Sleep(100); connectCounter++; } is there any good methord to deal with it?Thank you!

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  • URLRewriter.net fails relative paths when using more than one substring in URL

    - by Andreas Strandfelt
    Hi. I have installed the URLRewriter on my server, and it works fine, but I have a rather big problem. Relative links in hyperlinks, CSS-links, images etc. doesn't work when I have URLs with more than one substring. E.g. (sorry, no http:// in front, as I do not have enough reputation): dkbyg.strandweb.dk/Leje-og-udlejning-arbejdskraft leads to the path dkbyg.strandweb.dk/Workers.aspx and works just fine. But dkbyg.strandweb.dk/Leje-og-udlejning-arbejdskraft/Midtjylland leads to dkbyg.strandweb.dk/Workers.aspx?Region=Midtjylland using this line in the Web.config: <rewrite url="~/Leje-og-udlejning-arbejdskraft/(.+)" to="~/Workers.aspx?Region=$1"/> It rewrites just fine, but my relative links doesn't work anymore. CSS, Images, links and so on thinks my root is now http://dkbyg.strandweb.dk/Leje-og-udlejning-arbejdskraft, which of course doesn't exist. Can't this be fixed? All my links are correctly set using the ~/, like this: <asp:HyperLink ID="HyperLink3" CssClass="black_text" NavigateUrl="~/Forgot-Password" runat="server">I have forgotten my password</asp:HyperLink>

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  • Problems refreshing DataGridView after database update in VB.NET

    - by Gbolahan
    Dim myQuery = "UPDATE table1 SET data= CONCAT (data,'" & vbCrLf & "[ " & Date.Now() & " ]" & " " & "[" & getCN() & "]" & " " & txtTelenotes.Text & "[ item1 ]" & "') WHERE id='" & txtID.Text & "'" myCommand.Connection = conn myCommand.CommandText = myQuery myAdapter.SelectCommand = myCommand Dim myData As MySqlDataReader myData = myCommand.ExecuteReader() txtTelenotes.Text = "" dgvREcord.Refresh() I tried refreshing the DataGridView using: dgvREcord.Refresh() but it does not load the changes from the database.

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  • Subfolders in App_GlobalResources (ASP.NET)

    - by frankadelic
    Is it possible to put resource files (.resx) within subfolders inside App_GlobalResources? For example: /App_GlobalResources/someresources/myfile.resx /App_GlobalResources/someresources/myfile.fr-fr.resx /App_GlobalResources/othereresources/otherfile.resx /App_GlobalResources/othereresources/otherfile.fr-fr.resx Or, are all the .resx files placed directly inside App_GlobalResources? If it is possible to use subfolders, how do you programmatically access resources within subfolders?

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  • .NET Working with Locking and Threads

    - by aherrick
    Work on this small test application to learn threading/locking. I have the following code, I would think that the line should only write to console once. However it doesn't seem to be working as expected. Any thoughts on why? What I'm trying to do is add this Lot object to a List, then if any other threads try and hit that list, it would block. Am i completely misusing lock here? class Program { static void Main(string[] args) { int threadCount = 10; //spin up x number of test threads Thread[] threads = new Thread[threadCount]; Work w = new Work(); for (int i = 0; i < threadCount; i++) { threads[i] = new Thread(new ThreadStart(w.DoWork)); } for (int i = 0; i < threadCount; i++) { threads[i].Start(); } // don't let the console close Console.ReadLine(); } } public class Work { List<Lot> lots = new List<Lot>(); private static readonly object thisLock = new object(); public void DoWork() { Lot lot = new Lot() { LotID = 1, LotNumber = "100" }; LockLot(lot); } private void LockLot(Lot lot) { // i would think that "Lot has been added" should only print once? lock (thisLock) { if(!lots.Contains(lot)) { lots.Add(lot); Console.WriteLine("Lot has been added"); } } } }

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  • VB.NET add an element to the XML document with LINQ to XML

    - by Bayonian
    Hi, I'm adding an element to existing XML doc with the following code: Dim theXMLSource As String = Server.MapPath("~/Demo/") & "LabDemo.xml" Dim nodeElement As XElement Dim attrAndValue As XElement = _ <LabService> <ServiceType> <%= txtServiceType.Text.Trim %> </ServiceType> <Level> <%= txtLevel.Text.Trim %> </Level> </LabService> nodeElement.Add(New XElement(attrAndValue)) nodeElement.Save(theXMLSource) It makes error like this: System.NullReferenceException: Object reference not set to an instance of an object. Object reference not set to an instance of an object. Error line: nodeElement.Add(New XElement(attrAndValue)) I debugged it but I couldn't get the error yet. Can you show what the problem is? Thank you

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  • IIS7 ASP.NET Session drops in seconds

    - by shxo
    For testing I have 1 isolated page - no masters, controls, …. My sessions are lost after about 30 seconds. I’ve tried setting timeout on the page itself, in web.config, both, and neither. Tried forms authentication with timeout and windows authentication. Recycle the AppPool after changes. I can response.write from the Session_Start , but I never get any response.writes from the Session_End. Some things I’ve tried: <sessionState mode="InProc" stateConnectionString="tcpip=127.0.0.1:42424" sqlConnectionString="data source=127.0.0.1;" cookieless="false" timeout="20" /> <sessionState mode="InProc" cookieless="false" timeout="20"/> <sessionState mode="InProc" timeout="20"/> <sessionState timeout="20"/> No luck. My runtime is set to: <httpRuntime useFullyQualifiedRedirectUrl="true" maxRequestLength="204800" requestLengthDiskThreshold="204800" executionTimeout="600" /> I don’t know what this would be relevant, but I can’t think of anything else to post! Thanks!

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