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  • C# Winforms ADO.NET - DataGridView INSERT starting with null data

    - by Geo Ego
    I have a C# Winforms app that is connecting to a SQL Server 2005 database. The form I am currently working on allows a user to enter a large amount of different types of data into various textboxes, comboboxes, and a DataGridView to insert into the database. It all represents one particular type of machine, and the data is spread out over about nine tables. The problem I have is that my DataGridView represents a type of data that may or may not be added to the database. Thus, when the DataGridView is created, it is empty and not databound, and so data cannot be entered. My question is, should I create the table with hard-coded field names representing the way that the data looks in the database, or is there a way to simply have the column names populate with no data so that the user can enter it if they like? I don't like the idea of hard-coding them in case there is a change in the database schema, but I'm not sure how else to deal with this problem.

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  • Pros and Cons of automating Excel using VBA vs .Net

    - by Andy
    I've been tasked with creating a financial planning tool in Excel that would benefit from some custom functions/macros. My initial reaction was to use VBA. I've used it to drive Excel before (say 5 years ago). But I then began to wonder if I would be better off using VSTO. Has anyone has experience using both techs and can list the pros and cons so that I can evaluate which course would be best.

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  • .NET Sockets and Proxy Servers

    - by Tristan
    I'm trying to make some source code for a library I downloaded work with a proxy server. The library uses sockets to connect to a server but if the client using the library is behind a proxy server it can't connect. Does anyone know how I can modify the socket to be able to connect to the server through a proxy server? I really want to just do this with the sockets in the library without having to change too much code to use WebRequest or something similar

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  • Asp.Net : Web service throws "Thread was being aborted"

    - by Master Morality
    I have a web service that I call via ajax that requires the user to be logged in. in each method I want to check if the user is logged in and send a 403 code if they are not, however when I call a Response.End() I get the error "Thread was being aborted". What should I call instead? [WebMethod(true)] public string MyMethod() { if(!userIsLoggedIn) { HttpContext.Current.Response.StatusCode = 403; HttpContext.Current.Response.End(); } /* Do stuff that should not execute unless the user is logged in... */ ... }

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  • .NET XML Serialization without <?xml> root node

    - by Graphain
    Hi, I'm trying to generate XML like this: <?xml version="1.0"?> <!DOCTYPE APIRequest SYSTEM "https://url"> <APIRequest> <Head> <Key>123</Key> </Head> <ObjectClass> <Field>Value</Field </ObjectClass> </APIRequest> I have a class (ObjectClass) decorated with XMLSerialization attributes like this: [XmlRoot("ObjectClass")] public class ObjectClass { [XmlElement("Field")] public string Field { get; set; } } And my really hacky intuitive thought to just get this working is to do this when I serialize: ObjectClass inst = new ObjectClass(); XmlSerializer serializer = new XmlSerializer(inst.GetType(), ""); StringWriter w = new StringWriter(); w.WriteLine(@"<?xml version=""1.0""?>"); w.WriteLine("<!DOCTYPE APIRequest SYSTEM"); w.WriteLine(@"""https://url"">"); w.WriteLine("<APIRequest>"); w.WriteLine("<Head>"); w.WriteLine(@"<Field>Value</Field>"); w.WriteLine(@"</Head>"); XmlSerializerNamespaces ns = new XmlSerializerNamespaces(); ns.Add("", ""); serializer.Serialize(w, inst, ns); w.WriteLine("</APIRequest>"); However, this generates XML like this: <?xml version="1.0"?> <!DOCTYPE APIRequest SYSTEM "https://url"> <APIRequest> <Head> <Key>123</Key> </Head> <?xml version="1.0" encoding="utf-16"?> <ObjectClass> <Field>Value</Field> </ObjectClass> </APIRequest> i.e. the serialize statement is automatically adding a <?xml root element. I know I'm attacking this wrong so can someone point me in the right direction? As a note, I don't think it will make practical sense to just make an APIRequest class with an ObjectClass in it (because there are say 20 different types of ObjectClass that each needs this boilerplate around them) but correct me if I'm wrong.

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  • Exception on dowloading Pdf file in ASP.NET

    - by Sauron
    I am downloading a Pdf file created by crystal report and I download as ReportDocument repDoc = ( ReportDocument ) System.Web.HttpContext.Current.Session["StudyReportCrystalDocument"]; // Stop buffering the response Response.Buffer = false; // Clear the response content and headers Response.ClearContent(); Response.ClearHeaders(); try { repDoc.ExportToHttpResponse(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, Response, true, "StudyReport" ); } catch( Exception ex ) { } Eventhough it is working But I got an exception base {System.SystemException} = {Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack.} Can anyone explain what is the reason for this and how to override the exception?

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  • String Builder Class in asp.net

    - by Indranil Mutsuddy
    Hiya, Suppose I want to display text retrieved from data base and I want to display the text applying color, font style etc. Is that possible?..Below is a sample code which i 've done recently. SqlDataReader myreader; myreader = cmmd.ExecuteReader(); StringBuilder sb = new StringBuilder(); sb.Append("<b>Vaccine</b>&nbsp;&nbsp;&nbsp;<b> Vaccination Date</b>&nbsp;&nbsp;&nbsp;<b> Vaccination Due Date</b>&nbsp;&nbsp;&nbsp;<b> Incomplete Vaccination </b>&nbsp;&nbsp;&nbsp;<b>Dose No.</b>&nbsp;&nbsp;&nbsp;<b> Remarks </b><br/><br/>"); while (myreader.Read()) { sb.Append(myreader["VaccineID"]); sb.Append("&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"); sb.Append(myreader["DateOFVaccine"]); sb.Append("&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"); sb.Append(myreader["NextVaccinationDueDate"]); sb.Append("&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"); sb.Append(myreader["AnyIncompleteImmunization"]); sb.Append("&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"); sb.Append(myreader["DoseNumber"]); sb.Append("&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"); sb.Append(myreader["Remark1"]); sb.Append("<br/>"); } lblDisplayDetails.Text = sb.ToString(); myreader.Close(); Thank You

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  • asp.net mvc json 2 times post to the controller

    - by mazhar kaunain baig
    function onTestComplete(content) { var url = '<%= Url.Action("JsonTest","Organization") %>'; $.post(url, null, function(data) { alert(data["name"]); alert(data["ee"]); }); } <% using (Ajax.BeginForm("JsonTest", new AjaxOptions() { HttpMethod = "POST", OnComplete = "onTestComplete" })) { %> <%= Html.TextBox("name") %><br /> <input type="submit" /> <% } % controller:` [HttpPost] public ActionResult JsonTest() { var data = new { name = "TestName",ee="aaa" }; return Json(data); }` Due to some reason When I click on the button (My Break point is in the controller jsontest method) The jsontest is called twice(that's the real problem).I want to call it once as usual,using Ajax.BeginForm( "", new AjaxOptions { HttpMethod = "POST", OnComplete = "onTestComplete" })) I am able to call it once but it doesn't post the values to the controller.

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  • GoDaddy and ASP.NET Security exception thrown

    - by stighy
    Hi guys, i'm having a problem when i try to host my website on godaddy. This is what i receive from website: Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. To discover the problem, i've tried changin my web.config, adding "trust level='Medium'". But i get an error when i try to access godaddy mysql server with the mysql connector. Any ideas ? Thanks in advance !

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  • creating enumeration using .NET's CodeDom

    - by Manish Sinha
    Hi, I want to create an Enumeration using CodeDom API. I have searched enough on the internet and I get results which are hardly of any use. What I want to generate is public enum bug_tracker_type { [Description("Bugzilla")] Bugzilla, [Description("Debbugs")] Debbugs, [Description("PHP Project Bugtracker")] PHP_Project_Bugtracker, [Description("Google Code")] Google_Code } I used CodeTypeDeclaration and set it's IsEnum property as true, created a name, and set it's Attributes. Now the biggest problem is how to populate the body? I tried CodeTypeMember mem = new CodeTypeMember(); mem.Name = WadlSharpUtils.CreateIdentifier(discreteValue.value); mem.CustomAttributes.Add(new CodeAttributeDeclaration(discreteValue.value)); // enumCandidate is an instance of CodeTypeDeclaration enumCandidate.Members.Add(mem); Though using this solution I can generate the Description attributes, the end of line would be ; and not ,

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  • Tabs in asp.net mvc

    - by Xulfee
    I have three tabs on page and one user control. I want to RenderPartial on each tab. <script type="text/javascript"> $(document).ready(function() { $("#tabs").tabs(); }); </script> <div id="tabs"> <ul> <li><a href="#tabs-1">Text 1</a></li> <li><a href="#tabs-2">Text 2</a></li> <li><a href="#tabs-3">Text 3</a></li> </ul> <div id="tabs-1"> <% Html.RenderPartial("usercontrol", Model); %> </div> <div id="tabs-2"> <% Html.RenderPartial("usercontrol", Model); %> </div> <div id="tabs-3"> <% Html.RenderPartial("usercontrol", Model); %> </div> </div> how can i get values from different tabs.

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  • asp.net mvc formcollection

    - by mazhar
    public ActionResult Edit(int id, FormCollection formValues) { 07. 08. // Retrieve existing dinner 09. Dinner dinner = dinnerRepository.GetDinner(id); 10. 11. // Update dinner with form posted values 12. dinner.Title = Request.Form["Title"]; 13. dinner.Description = Request.Form["Description"]; 14. dinner.EventDate = DateTime.Parse(Request.Form["EventDate"]); 15. dinner.Address = Request.Form["Address"]; 16. dinner.Country = Request.Form["Country"]; 17. dinner.ContactPhone = Request.Form["ContactPhone"]; 18. 19. // Persist changes back to database 20. dinnerRepository.Save(); 21. 22. // Perform HTTP redirect to details page for the saved Dinner 23. return RedirectToAction("Details", new { id = dinner.DinnerID }); 24.} formValues is not used in any form, what is the used of it.

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  • asp.net mvc textbox date format

    - by maxxxee
    My form contains a textbox for date input. When submitted the data is used to add a row to the table. The view is strongly typed to the table. The problem is that the database server is configured with US date format. But the users need to use UK date format in the textbox. When users enter uk date format error is thrown. The database server configuration cannot be changed. So what can be done so that users can enter date in uk format?

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  • Jquery Asp.Net GridView Data Binding

    - by oraclee
    Hi all; <form id="form1" runat="server"> <div> <asp:Button ID="Button1" runat="server" Text="Button" /> <asp:GridView ID="GridView1" runat="server"> </asp:GridView> </div> </form> How to call Method Jquery ? public void GetGrid() { DataProviderDataContext db = new DataProviderDataContext(); GridView1.DataSource = db.Employees.ToList(); GridView1.DataBind(); } I do not know English pls help

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  • ASP.NET MVC Image refreshing

    - by user295541
    Hi, I have an Employee object which has an image property. Image class contains image metadata as image caption, and image file name. If I upload a new image for an employee on async way without full post back the new image is not appeared on the page. I use GUID to name the image file to avoid the page caching. I do the image modifying the following way: ctrEmployee employee = Repository.Get(PassedItemID); if (employee.ctrImage != null) { string fullFileName = serverFolder + employee.ctrImage.FileName; FileInfo TheFile = new FileInfo(fullFileName); if (TheFile.Exists) { TheFile.Delete(); } fileName = Guid.NewGuid() + ".jpg"; employee.ctrImage.FileName = fileName; } resizedBmp.Save(string.Format("{0}{1}", serverFolder, fileName), System.Drawing.Imaging.ImageFormat.Jpeg); Repository.Edit<ctrEmployee>(employee); ImageID = employee.Image.Value; return PartialView(UserControlPaths.Thumbnail, new ThumbnailDataModel(employee.Image.Value, 150, 150)); The partial view has an image tag which gets the saved image url string which is a GUID. Anybody has an idea what I do wrong?

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  • 'License expired' error when dynamically generating Excel docs in ASP.NET

    - by Mac
    Anyone familiar with error below? When I run my webapp to generate a dynamic excel doc from my local machine it works fine but when the same piece of code is invoked on the server I get the below error. It seems like it's a permissions issues since it works on my machine but not the server but I don't know where to start in order to pinpoint the problem. Any guidance/help is greatly appreciated! Server Error in '/' Application. -------------------------------------------------------------------------------- This command is unavailable because the license to use this application has expired. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Runtime.InteropServices.COMException: This command is unavailable because the license to use this application has expired. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [COMException (0x800a03ec): This command is unavailable because the license to use this application has expired.] Microsoft.Office.Interop.Excel.Workbooks.Add(Object Template) +0 PaymentsReport.Page_Load(Object sender, EventArgs e) +70 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +34 System.Web.UI.Control.OnLoad(EventArgs e) +99 System.Web.UI.Control.LoadRecursive() +47 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061 Office/Excel is installed on the server and I can open/save excel docs on the server. Could it be the version of excel on the server vs. my local machine? If so how can I make sure I have the latest on the server?

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  • ASP.NET Ajax control toolkit not shown in VS 2008

    - by lmsasu
    I have downloaded the Ajax control toolkit; I have created a new tab in VS 2008 (SP1) toolbox, added the controls from the AjaxControlToolkit.dll,everything went fine. When I removed the toolbox and tried to perform the same steps as above, it didn't work anymore... That is, in the window shown for the "Choose items", the controls are't anutomatically added to the list, as before. What should I do?

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  • A very weired problem with texbox control in C# .net

    - by Kazoom
    Well i know textbox is a very simple user control, perhaps the first input control ever made. I have been facing a very frustrating problem with this simple control. I programatically add a textbox in my user control. From ui i am able to edit it like a normal textbox. however, i am not able to read the user inputed value in the program. my program all the time sees the old value with which my text box was initialized. i textchange event getting triggered but the value never gets updated. This seemingly looks to be some innocuous bug in the code, but the program is very simple and it does not seem to be having any bug. Any guidelines on this issue?

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  • Windows Forms Autosizing in .NET

    - by mcoolbeth
    My C# project contains a form. There are some controls across the top of the form and some controls across the bottom of the form, as well as a FlowLayoutPanel in the center, all of which have been placed with the Visual Studio Form Designer. During runtime, controls are dynamically added to and removed from the FlowLayoutPanel, and both the panel and the form itself are configured to automatically fit the size of they're contents. However, since some controls were placed with the designer above and below the FlowLayoutPanel, the desired resizing fails to take place when new controls are added to the FlowLayoutPanel. Does anybody know of a convenient remedy for this problem?

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  • Free Application Lifecycle Management Tools for .NET Development

    - by pablocastilla
    I would like to achieve the following: I want a free Application Lifecycle Management (ALM) environment surrounding vs2008 sp1. (My company is short of cash). I want all the stuff: CI, BugTracking, task panel, Wiki, Source control... all integrating themselves. If I could have some kind of scrum managing tools it would be better. Any recommendation? Thanks in advance.

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  • Disabling Submit Button in ASP.NET 3.5 Application with JavaScript breaks BlackBerry submission

    - by ahsteele
    The following code is being used to disable a Submit button once it has been clicked. This works great on desktop browsers and most BlackBerry mobile browsers. Submit.Attributes.Add("onclick", "javascript:this.disabled=true;" + ClientScript.GetPostBackEventReference(Submit, null)); Unfortunately, when using a BlackBerry Storm clicking the submit button causes the device to just reload the page. If I remove this code the Storm browser submits the page just fine. I need to disable the button when the browser is capable of doing so but do not want to affect browsers that are not JavaScript capable. I realize I could add the jQuery framework and only attach the event client side, but am trying to look for the simplest fix (read least intrusive) as this is a legacy application. Any suggestions?

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  • how to use Facebook.showPermissionDialog(‘publish_stream,read_stream’) in asp.net application for th

    - by ibrahimkhan
    Hi All, I am using Facebook.showPermissionDialog("publish_stream,read_stream"). It is displaying dialog in pageload. In facebook wikipage they are showing ex: Facebook.showPermissionDialog('publish_stream,read_stream', ondone, enableProfileSelector, [1234,2345]); Can any one explain me here : what is - ondone, enableProfileSelector, [1234,2345]);?? i know these[1234,2345] are pageids. How to display these things to pageadmin only.?? Pls help me regarding this. Thanks in advance, Ibrahim.

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  • Code reviews for larger MVC.NET team using TFS

    - by Parrots
    I'm trying to find a good code review workflow for my team. Most questions similar to this on SO revolve around using shelved changes for the review, however I'm curious about how this works for people with larger teams. We usually have 2-3 people working a story (UI person, Domain/Repository person, sometimes DB person). I've recommended the shelf idea but we're all concerned about how to manage that with multiple people working the same feature. How could you share a shelf between multiple programmers at that point? We worry it would be clunky and we might easily have unintended consequences moving to this workflow. Of course moving to shelfs for each feature avoids having 10 or so checkins per feature (as developers need to share code) making seeing the diffs at code review time painful. Has anyone else been able to successfully deal with this? Are there any tools out there people have found useful aside from shelfs in TFS (preferably open-source)?

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