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  • Reattaching an object graph to an EntityContext: "cannot track multiple objects with the same key"

    - by dkr88
    Can EF really be this bad? Maybe... Let's say I have a fully loaded, disconnected object graph that looks like this: myReport = {Report} {ReportEdit {User: "JohnDoe"}} {ReportEdit {User: "JohnDoe"}} Basically a report with 2 edits that were done by the same user. And then I do this: EntityContext.Attach(myReport); InvalidOperationException: An object with the same key already exists in the ObjectStateManager. The ObjectStateManager cannot track multiple objects with the same key. Why? Because the EF is trying to attach the {User: "JohnDoe"} entity TWICE. This will work: myReport = {Report} {ReportEdit {User: "JohnDoe"}} EntityContext.Attach(myReport); No problems here because the {User: "JohnDoe"} entity only appears in the object graph once. What's more, since you can't control how the EF attaches an entity, there is no way to stop it from attaching the entire object graph. So really if you want to reattach a complex entity that contains more than one reference to the same entity... well, good luck. At least that's how it looks to me. Any comments? UPDATE: Added sample code: // Load the report Report theReport; using (var context1 = new TestEntities()) { context1.Reports.MergeOption = MergeOption.NoTracking; theReport = (from r in context1.Reports.Include("ReportEdits.User") where r.Id == reportId select r).First(); } // theReport looks like this: // {Report[Id=1]} // {ReportEdit[Id=1] {User[Id=1,Name="John Doe"]} // {ReportEdit[Id=2] {User[Id=1,Name="John Doe"]} // Try to re-attach the report object graph using (var context2 = new TestEntities()) { context2.Attach(theReport); // InvalidOperationException }

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  • ASP.Net Panel JQuery SlideToggle Postback

    - by Germ
    I have an asp.net panel with a style which hides it and I'm using JQuery to slideToggle the panel using a hyperlink. This works fine. However, if I add a button on the page that causes a postback the panel will default back to hidden. I understand why this is happening but what is the best way to keep the panels visibility state when a postback occurs? <head runat="server"> <title></title> <script type='text/javascript' src="jquery-1.4.1.min.js"> </script> <style type="text/css"> .panel { display: none; } </style> <script type="text/javascript"> $(function() { $("#Link1").click(function(evt) { evt.preventDefault(); $('#panelText').slideToggle('slow'); }); }); </script> </head> <body> <form id="form1" runat="server"> <asp:HyperLink ID="Link1" runat="server" NavigateUrl="#">SlideToggle </asp:HyperLink><br /> <asp:Panel ID="panelText" runat="server" CssClass="panel"> Some text</asp:Panel> <asp:Button ID="button1" runat="server" Text="Postback" /> </form> </body> </html>

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  • WCF webservice stop working after upgrade to framework 3.5 sp1

    - by Victor
    I have a wcf webservice on one of my testing servers. Everything worked fine until I upgraded frome framework 3.5 to 3.5 sp1. the wcf web service stoped working and returns the error: "Failed to invoke the service. The service may be offline or inaccessible. Refer to the stack trace for details." "The remote server returned an unexpected response: (502) Proxy Error ( The specified network name is no longer available. ). Server stack trace: at System.ServiceModel.Channels.HttpChannelUtilities.ValidateRequestReplyResponse(HttpWebRequest request, HttpWebResponse response, HttpChannelFactory factory, WebException responseException) at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout) at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout) at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout) at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout) at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs) at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation) at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)" Does anyone know what is going on here?

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  • jQuery trigger mouseover function when page loads with the mouse over the element

    - by Gal V
    Hello all, I have an ASP.NET document, with an Image element within it. I created a mouseover function on this image element and it's working fine. The question is: If the mouse is ALREADY over the element when the document loads itself, the mouseover function doesn't trigger (I need to mouseout and then mouseover again in order to trigger it). Is there any way to check in the $(document).ready function if the mouse is already on top of this element? and if yes- trigger the mouseover function. Thanks all!

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  • Setup requires .NET 4.0 - System already has .net 4.0

    - by Willem
    Hi all, I created a service which I now want to install to test, I created a setup program from the templates in VS2010. When running the setup program it prompts me to download and install .net fw 4.0, but I already have it installed. I did try to just install the file that I get pointed to (4.0 cliet), but not only does it still not work, it causes vs2010 to throw an unknown error and can't open. I've now uninstalled everything (including vs2010 beta) and started afresh with VS2010 ultimate trial full version, framework 4.0 and win 7 but it still prompts me to install fw 4.0 when I try to run the setup. Can anyone please point me in the right direction? Thanx in advance Willem

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  • Custom CheckBoxList in ASP.NET

    - by Rick
    Since ASP.NET's CheckBoxList control does not allow itself to be validated with one of the standard validation controls (i.e., RequiredFieldValidator), I would like to create a UserControl that I can use in my project whenever I need a checkbox list that requires one or more boxes to be checked. The standard CheckBoxList can be dragged onto a page, and then you can manually add <asp:ListItem> controls if you want. Is there any way I can create a UserControl that lets me manually (in the markup, not programmatically) insert ListItems from my page in a similar manner? In other words, can I insert a UserControl onto a page, and then from the Designer view of the Page (i.e., not the designer view of the UserControl), can I manually add my ListItems like so: <uc1:RequiredCheckBoxList> <asp:ListItem Text="A" value="B"></asp:ListItem> <asp:ListItem Text="X" value="Y"></asp:ListItem> </uc1:RequiredCheckBoxList> If a UserControl is not the appropriate choice for the end result I'm looking for, I'm open to other suggestions. Please note that I am aware of the CustomValidator control (which is how I plan to validate within my UserControl). It's just a pain to write the same basic code each time I need one of these required checkbox lists, which is why I want to create a re-usable control.

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  • Modalpopupextender - Javascript error

    - by clklachu
    Hi, I just tried creating a simple sample with Modalpopup extender and Caledarextender. My design is like below. <asp:UpdatePanel ID="pnlUpdate" runat="server"> <ContentTemplate> <asp:Panel ID="pnlSample" runat="server" CssClass="frame"> <asp:TextBox ID="txtOSDate" runat="server"></asp:TextBox> <asp:TextBox ID="txtDate" runat="server"></asp:TextBox> <asp:CalendarExtender ID="calDate" runat="server" TargetControlID="txtOSDate"> </asp:CalendarExtender> <asp:CalendarExtender ID="calOSDate" runat="server" TargetControlID="txtDate"> </asp:CalendarExtender> <asp:Button ID="btnCancel" runat="server" Text="Cancel" /> </asp:Panel> <asp:Button ID="btnHiddenSample" runat="server" Style="display: none;" /> <asp:Button ID="btnSample" runat="server" CssClass="Button" Text="New Sample" /> <asp:ModalPopupExtender ID="mpeSample" runat="server" TargetControlID="btnHiddenSample" CancelControlID="btnCancel" PopupControlID="pnlSample" DropShadow="false" BackgroundCssClass="modalBackground"> </asp:ModalPopupExtender> </ContentTemplate> </asp:UpdatePanel> When i run the sample and click the "New Sample" button, i get javascript error as "Error: Sys.InvalidOperationException: Two components with the same id 'ctl00_MainContent_calDate' can't be added to the application.' can't be added to the application." I checked the rendered HTML using DeveloperTools and i still found the asp Panel recreated. Someone please advice me what is the actual problem? PS:When i comment the Calendar Extender, i dont get the error. Regards, Lakxman Kumar C

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  • FCKEditor doesn't set Value property on postback!

    - by Shaul
    I'm using FCKEditor on my asp.net web page. It appears beautifully, and the editor looks really good on the front end. Only problem is, the .Value property is not being set on the postback. No matter what changes the user makes to the value of the control on the page, when I click "Submit", the .Value property remains blank. I have Googled for other solutions, and most of them are of the variety where there's some conflict with Ajax, such as this and this. My problem is not solved by these solutions; it's much more fundamental than that. I'm not doing anything to do with Ajax; I'm just a simple asp.net newbie with a simple web form, and the value property is not being set on postback, not in IE and not in FF. It appears that at least one other person has had this problem, but no solution yet. Any ideas? Thanks! New information: I tried this out on a "hello world" test web site - and the test web site works 100%. There is obviously a problem on my page, but I have no idea where to begin tracking this down. Here's the markup of my page, in case anyone can see anything obvious that my newbie eyes can't: <%@ Page Language="vb" AutoEventWireup="false" CodeBehind="EmailTemplateEditForm.aspx.vb" Inherits="EEI_App.EmailTemplateEditForm" %> <%@ Register Assembly="FredCK.FCKeditorV2" Namespace="FredCK.FCKeditorV2" TagPrefix="FCKeditorV2" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>EEI - Email Template</title> <link rel="stylesheet" href="EEI.css"> <script language="javascript" id="jssembleWare" src="sembleWare.js"></script> <style type="text/css"> .style1 { height: 251px; } .style2 { width: 2%; height: 251px; } .style3 { height: 490px; } </style> </head> <body> <form id="form1" runat="server"> <%@ register src="header.ascx" tagname="header" tagprefix="uc1" %> <%@ register src="footer.ascx" tagname="footer" tagprefix="uc1" %> <uc1:header ID="header1" runat="server" /> <!-- main content area --> <div class="content"> <!-- title of the page --> <div class="boxheader"> Email Template </div> <div class="standardbox"> <!-- Start Page Main Contents--> <!-- error messages --> <div class="errorbox"> <asp:Label ID="lblError" CssClass="ErrorControlStyle" runat="server" EnableViewState="False" Width="100%"></asp:Label> </div> <table class="contenttable"> <tr> <td align="left" valign="top" class="style3"> <div class="actionbox"> <div class="navheadertitle"> Navigation</div> <ul> <li> <asp:LinkButton ID="btnSubmit" CssClass="LinkButtonStyle" runat="server">Submit</asp:LinkButton> </li> <li> <asp:LinkButton ID="btnCancel" CssClass="LinkButtonStyle" runat="server" CausesValidation="false">Cancel</asp:LinkButton> </li> </ul> </div> </td> <td align="left" valign="top" class="style3"> <p> </p> <table> <tr class="MCRSFieldRow"> <td class="MCRSFieldLabelCell"> <asp:Label ID="lblEmailTemplate_TemplateName" CssClass="LabelStyle" runat="server" Width="175">Template Name</asp:Label> </td> <td class="MCRSFieldEditCell"> <asp:TextBox ID="txtEmailTemplate_TemplateName" CssClass="TextBoxStyle" runat="server" Width="100%"></asp:TextBox> </td> <td class="MCRSFieldLabelCell"> <asp:Label ID="lblEmailTemplate_TemplateType" CssClass="LabelStyle" runat="server" Width="175">Template Type</asp:Label> </td> <td class="MCRSFieldEditCell"> <asp:RadioButtonList ID="rblEmailTemplate_TemplateType" CssClass="RadioButtonListStyle" runat="server" RepeatColumns="1" RepeatDirection="Horizontal" Width="135px"> <asp:ListItem Value="1">Cover Letter</asp:ListItem> <asp:ListItem Value="2">Email</asp:ListItem> </asp:RadioButtonList> </td> <td class="MCRSRowRightCell"> &nbsp; </td> </tr> <tr class="MCRSFieldRow"> <td class="MCRSFieldLabelCell"> Composition Date </td> <td class="MCRSFieldEditCell"> <asp:Label ID="lblEmailTemplate_CompositionDate" CssClass="ElementLabelStyle" runat="server" Width="175"></asp:Label> </td> <td class="MCRSFieldLabelCell"> Last Used Date </td> <td class="MCRSFieldEditCell"> <asp:Label ID="lblEmailTemplate_LastUsedDate" CssClass="ElementLabelStyle" runat="server" Width="175"></asp:Label> </td> <td class="MCRSRowRightCell"> &nbsp; </td> </tr> <tr class="MCRSFieldRow"> <td class="MCRSFieldLabelCell"> Composed By </td> <td class="MCRSFieldEditCell" colspan="3"> <asp:Label ID="lblPerson_FirstNames" CssClass="ElementLabelStyle" runat="server"></asp:Label> <asp:Label ID="lblPerson_LastName" CssClass="ElementLabelStyle" runat="server"></asp:Label> </td> <td class="MCRSRowRightCell"> &nbsp; </td> </tr> <tr class="MCRSFieldRow"> <td class="MCRSFieldLabelCell"> <asp:Label ID="lblEmailTemplate_Subject" CssClass="LabelStyle" runat="server" Width="175">Subject</asp:Label> </td> <td class="MCRSFieldEditCell" colspan="3"> <asp:TextBox ID="txtEmailTemplate_Subject" CssClass="TextBoxStyle" runat="server" Width="100%"></asp:TextBox> </td> <td class="MCRSRowRightCell"> &nbsp; </td> </tr> <tr class="MCRSFieldRow"> <td class="style1"> <asp:Label ID="lblEmailTemplate_Body" CssClass="LabelStyle" runat="server" Width="175">Body</asp:Label> </td> <td class="style1" colspan="3"> <FCKeditorV2:FCKeditor ID="FCKeditor1" runat="server" Height="500px"> </FCKeditorV2:FCKeditor> </td> <td class="style2"> &nbsp; </td> </tr> </table> </td> </tr> </table> </div> <p> <a class="InputButtonStyle" href="#_swTopOfPage">Top of Page</a> </p> </div> <uc1:footer ID="footer1" runat="server" /> <p> <asp:TextBox ID="txtEmailTemplate_Body" CssClass="TextAreaStyle" Rows="4" runat="server" Width="100%" Height="16px" Visible="False"></asp:TextBox> </p> </form> </body> </html>

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  • asp.net how to add items programmatically to detailsview

    - by dotnet-practitioner
    I have the following code for each lookup table. So far I am doing copy/paste for each drop down list control. But I think there is a better way of doing this. I should be able to specify DataTextField, DataValueField, control names etc. Of course I will have to manually add configuration related database values on the database side like look up table, and other changes in the stored proc. But at the aspx page or .cs page, there has to be a better way then copy/paste.. <asp:TemplateField HeaderText="Your Ethnicity"> <EditItemTemplate> <asp:DropDownList ID="ddlEthnicity" runat="server" DataSourceid="ddlDAEthnicity" DataTextField="Ethnicity" DataValueField="EthnicityID" SelectedValue='<%#Bind("EthnicityID") %>' > </asp:DropDownList> </EditItemTemplate> <ItemTemplate > <asp:Label Runat="server" Text='<%# Bind("Ethnicity") %>' ID="lblEthnicity"> </asp:Label> </ItemTemplate> </asp:TemplateField> Please let me know... Thanks

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  • What Date Format Should I Send When Using Oracle.DataAcess.

    - by discwiz
    Converting from usind Micorsofts Syste.Data.OracleClient to what I believe is called Oracles ODT (Oracle.DataAccess 10.2.0.100). When I try and send a date I get this error "ORA-1858: a non-numeric character was found where a numeric was expected". This code worked great using System.Data.OracleClient. cmd.Parameters.Add(New OracleParameter("I_FIRST_LOSS_EVENT_DATE", OracleDbType.Date)).Value = .LossEventsMessages(0).LossEventTime Thanks, Dave

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  • ASP.NET validators alignment issue

    - by Mahesh
    Hi, I am developing contactus webpage which have a input field called Email. It is validated against a required field validator and regular expression validator with appropriate messages. Required: Enter Email Regular Expression: Invalid Email I am setting these two as given below: <asp:TextBox ID="txtEmail" runat="server"></asp:TextBox> <font color="#FF0000">*</font> <asp:RequiredFieldValidator ID="rfvemail" CssClass="error_text" ControlToValidate="txtEmail" runat="server" ErrorMessage="Enter email address."></asp:RequiredFieldValidator> <asp:RegularExpressionValidator ID="revemail" runat="server" ControlToValidate="txtEmail" ErrorMessage="Invalid Email" ValidationExpression="\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"></asp:RegularExpressionValidator> My problem is both Enter Email and Invalid Email is occupying its own space. For Ex: If I leave email as empty space and press submit, Enter Email is displaying right next to it. If I enter invalid email(xxx), Enter Email is off but taking the space, Invalid Email message is displayed after these space taken by 'Enter Email' before. Is there any way to remove this space?? Mahesh

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  • Jquery, "$.each(", function returns error in IE. 'Length' is null or not an object

    - by Collin Estes
    My code is working fine in FireFox but my users are restricted to IE. I'm getting an error though in IE, related to my JQUERY function. populateTable:function(returnList) { var self = this; var eat = $.evalJSON(returnList.firstChild.textContent) $.each(eat,function() { $("<tr><td>" + this.reportId + "</td><td>" + this.description + "</td><td>" + this.drawingNumber + "<td></tr>").insertAfter(self.tblResults[0].childNodes[1]); }) } IE is erring on the $.each with the message below: 'Length' is null or not an object Any ideas or maybe a workaround for the $.each function? Update: returnList is an XML document object from an Ajax call. I'm trying to retrieve the JSON object string located within the XML tag.

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  • Is it good practice to call module functions directly in VB.NET?

    - by froadie
    I have a Util module in my VB.NET program that has project-wide methods such as logging and property parsing. The general practice where I work seems to be to call these methods directly without prefixing them with Util. When I was new to VB, it took me a while to figure out where these methods/functions were coming from. As I use my own Util methods now, I can't help thinking that it's a lot clearer and more understandable to add Util. before each method call (you know immediately that it's user-defined but not within the current class, and where to find it), and is hardly even longer. What's the general practice when calling procedures/functions of VB modules? Should we prefix them with the module name or not?

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  • Possible to view T-SQL syntax of a stored proc-based SqlCommand?

    - by mconnley
    Hello! I was wondering if anybody knows of a way to retrieve the actual T-SQL that is to be executed by a SqlCommand object (with a CommandType of StoredProcedure) before it executes... My scenario involves optionally saving DB operations to a file or MSMQ before the command is actually executed. My assumption is that if you create a SqlCommand like the following: Using oCommand As New SqlCommand("sp_Foo") oCommand.CommandType = CommandType.StoredProcedure oCommand.Parameters.Add(New SqlParameter("@Param1", "value1")) oCommand.ExecuteNonQuery() End Using It winds up executing some T-SQL like: EXEC sp_Foo @Param1 = 'value1' Is that assumption correct? If so, is it possible to retrieve that actual T-SQL somehow? My goal here is to get the parsing, etc. benefits of using the SqlCommand class since I'm going to be using it anyway. Is this possible? Am I going about this the wrong way? Thanks in advance for any input!

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  • AJAX.NET __doPostBack changes other content

    - by Raul
    Hi. I have an application where a javascript reads the GPS location of the device and sends it to serverside script like this: f() { var initialLocation= Someshit(); document.getElementById('<% = text.ClientID %>').value=initialLocation; var button = document.getElementById('<% = Button4.ClientID %>'); button.click(); } And i have some AJAX.NET code: <asp:UpdatePanel ID="UpdatePanel1" runat="server"> <ContentTemplate> <asp:Button ID="Button4" runat="server" Text="PlaceHolder" onclick="Button4_Click"/> <asp:TextBox ID="text" runat="server"></asp:TextBox> </ContentTemplate> </asp:UpdatePanel> And a bit further down <asp:UpdatePanel ID="UpdatePanel2" runat="server"> <ContentTemplate> <div> <some divs and asp:gridviews and god knows what > </div> <ContentTemplate> </asp:UpdatePanel> The problem is that the the last divs inner content changes when the event of UpdatePanel1 has finished. Why is that? I don't want the content outside of UpdatePanel1 to be changed whenever UpdatePanel1 is doing its thing. Please help.

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  • Generating PDF files from .NET by using standard .NET GDI printing classes

    - by Philippe Leybaert
    I'm looking for a way to generate PDF files using the standard PrintDocument and Graphics (GDI) classes in .NET. As far as I know, the only way to do that is by printing to a PDF printer. The problem is that a PDF printer driver always asks for a filename, but I need to control the filename from my code. Using a PDF library like PDFSharp or DynamicPDF is not an option, because they all provide their own API for generating PDF files. I need this for an internal application, so dependencies are not a problem. My question is simple: is there a way to control a printer driver (Adobe Acrobat, PDFCreator, ...) in such a way that a filename can be specified and the user is not prompted for anything?

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  • Storing an object to use in multiple classes

    - by Aaron Sanders
    I am wondering the best way to store an object in memory that is used in a lot of classes throughout an application. Let me set up my problem for you: We have multiple databases, 1 per customer. We also have a master table and each row is detailed information about the databases such as database name, server IP it's located and a few config settings. I have an application that loops through those multiple databases and runs some updates on them. The settings I mentioned above are updated each loop iteration into memory. The application then runs through series of processes that include multiple classes using this data. The data never changes during the processes, only during the loop iteration. The variables are related to a customer, so I have them stored in a customer class. I suppose I could make all of the members shared or should I use a singleton for the customer class? I've never actually used a singleton, only read they are good in this type of situation. Are there better solutions to this type of scenario? Also, I could have plans for this application to be multithreaded later. Sorry if this is confusing. If you have questions, let me know and I will answer them. Thanks for your help.

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  • XHTML Validation issue trying to render '&' character inside an ASP.Net control

    - by Micah
    Ok, the description is kind of funky, but here's my problem: <asp:ListItem Value="0">All Leads <i>(include Archive & Trash)</i></asp:ListItem> <asp:ListItem Value="0">All Leads <i>(include Archive &amp; Trash)</i></asp:ListItem> <asp:ListItem Value="0" Text="All Leads <i>(include Archive & Trash)</i>" /> <asp:ListItem Value="0" Text="All Leads <i>(include Archive &amp; Trash)</i>" /> All three versions render the following html All Leads <i>(include Archive & Trash)</i> This of course fails XHTML validation. It needs to render the html like this: All Leads <i>(include Archive &amp; Trash)</i> How can I fix this? Thanks.

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  • Classic ASP on IIS 7

    - by jagr
    Hi, I am having problems with my app running on IIS 7. The application is a mixture of classic ASP and ASP.NET MVC (don't ask how and why). Anyway, the application is up and running except for some problems that I am experiencing. For example, I have a button on my page and when I click it, javascript is opening a popup which needs to contain .asp page. But that doesn't happen. I get the blank popup with my cursor on busy as it still loads. This is happening almost always to me in IE. In Firefox it is much better but sometimes the app jams there too. If I close the opened, blank popup, and I want to move around the application, my buttons in menu (which are also .asp) doesn't load properly. For example, I have different buttons for different sections and when I move around they should change. When I restart the browser, only then everything works normal for some time, but the problem occurs again after a while. I am very sure that it is not the problem in application itself, because it works properly on the machines of my colleagues without those problems. They have the same OS (Vista Professional) and we compared the settings in IIS and they match. So I am very confused, and I really don't know how to solve the problem. I found a bunch of articles and blog posts about classic ASP and IIS7 but most of them are about enabling asp, which I already did. So I am suspecting that something wrong with IIS, but I don't know what, tried to reinstall it, hoping for some improvement, but I had no luck. If you need more details please ask. Does anyone have any idea what should I try or do?

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  • Processing XML form input in ASP

    - by Omar Kooheji
    I'm maintaining a legacy application which consists of some ASP.Net pages with c# code behinds and some asp pages. I need to change the way the application accepts it's input from reading a set of parameters from some form fields to reading in one form field which contains contains some XML and parsing to get the parameters out. I've written a C# class that takes an The NameValueCollection from the C# HttpRequest's Form Element. Like so NameValueCollection form = Request.Form; Dictionary<string, string> fieldDictionary = RequestDataExtractor.BuildFieldDictionary(form); The code in the class looks for a particular parameter and if it's there processes the XML and outputs a Dictionary, if its not there it just cycles through the Form parameters and puts them all into the dictionary (Allowing the old method to still work) How would I do this in ASP? Can I use my same class, or a modified version of it? or do I have to write some new code to get this working? If I have to write ASP code Whats the best way to process the XML in ASP? Sorry if this seems like a stupid question but I know next to nothing about ASP and VB.

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  • Decoupling the view, presentation and ASP.NET Web Forms

    - by John Leidegren
    I have an ASP.NET Web Forms page which the presenter needs to populate with controls. This interaction is somewhat sensitive to the page-life cycle and I was wondering if there's a trick to it, that I don't know about. I wanna be practical about the whole thing but not compromise testability. Currently I have this: public interface ISomeContract { void InstantiateIn(System.Web.UI.Control container); } This contract has a dependency on System.Web.UI.Control and I need that to be able to do things with the ASP.NET Web Forms programming model. But neither the view nor the presenter may have knowledge about ASP.NET server controls. How do I get around this? How can I work with the ASP.NET Web Forms programming model in my concrete views without taking a System.Web.UI.Control dependency in my contract assemblies? To clarify things a bit, this type of interface is all about UI composition (using MEF). It's known through-out the framework but it's really only called from within the concrete view. The concrete view is still the only thing that knows about ASP.NET Web Forms. However those public methods that say InstantiateIn(System.Web.UI.Control) exists in my contract assemblies and that implies a dependency on ASP.NET Web Forms. I've been thinking about some double dispatch mechanism or even visitor pattern to try and work around this.

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  • create a queue of process in classic asp

    - by austin powers
    Hi, here is the problem : there is classic asp app which is calling lame.exe for encoding mp3s for lots of time per day and there is no control of the way of calling lame.exe from several users in another word there is no queue for that purpose. so here is what I am thinking about : //below code all are pseudo-code //process_flag and mp3 and processId all are reside in a database function addQ(string mp3) add a record to database and set process_flag to undone then goto checkQ end function function checkQ() if there is a process in queue list sort in by processID asc for each processID processQ(processID) end for end function function ProcessQ(int processID) run lame.exe with the help of wscript.exe after doing the job set the process_flag to done end function so I just want to know is there any better solution? or any other approaches out there? regards.

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  • ASP.NET page with base class with dynamic master page not firing events

    - by Kangkan
    Hi guys! I am feeling that I have terribly wrong somewhere. I was working on a small asp.net app. I have some dynamic themes in the \theme folder and have implemented a page base class to load the master page on the fly. The master is having the ContentPlaceHolder like: <asp:ContentPlaceHolder ID="cphBody" runat="server" /> Now I am adding pages that are derived from my base class and added the form elements. I know, Visual Studio has problem showing the page in the design mode. I have a dropdown box and wish to add the event of onselectedindexchange. But it is not working. the page is like this: <%@ Page Language="C#" AutoEventWireup="true" Inherits="trigon.web.Pages.MIS.JobStatus" Title="Job Status" AspCompat="true" CodeBehind="JobStatus.aspx.cs" %> <asp:Content ID="Content1" ContentPlaceHolderID="cphBody" runat="Server"> <div id="divError" runat="server" /> <asp:DropDownList runat="server" id="jobType" onselectedindexchange="On_jobTypeSelection_Change"></asp:DropDownList> </asp:Content> I have also tried adding the event on the code behind like: protected void Page_Load(object sender, EventArgs e) { jobType.SelectedIndexChanged += new System.EventHandler(this.On_jobTypeSelection_Change); if (!IsPostBack) { JobStatus_DA da = new JobStatus_DA(); jobType.DataSource = da.getJobTypes(); jobType.DataBind(); } } protected void On_jobTypeSelection_Change(Object sender, EventArgs e) { //do something here } Can anybody help? Regards,

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  • Can't set Visible attribute in ASP.NET Panels

    - by RichW
    I am having trouble with visible attribute of an ASP.NET Panel control. I have a page that calls a database table and returns the results in a datagrid. Requirements If some of the returned values are null I need to hide the image that's next to it. I am using a Panel to determine whether to hide or show the image but am having trouble with the statement: visible='<%# Eval("addr1") <> DBNull.Value %>' I have tried these as well: visible='<%# Eval("addr1") <> DBNull.Value %>' visible='<%# IIf(Eval("addr1") Is DbNull.Value, "False","True") %>' Code is below: <asp:TemplateField > <ItemTemplate> <%# Eval("Name")%> <p> <asp:Panel runat="server" ID="Panel1" visible='<%# Eval("addr1") <> DBNull.Value %>'> <asp:Image Id="imgHouse" runat="server" AlternateText="Address" SkinId="imgHouse"/> </asp:Panel> <%# Eval("addr1") %><p> </ItemTemplate> </asp:TemplateField> What am I doing wrong? Edit If I use visible='<%# IIf(Eval("addr1") Is DbNull.Value, "False","True") %>' I get the following error: Compiler Error Message: CS1026: ) expected

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