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  • How can I dynamically clear all controls in a user control?

    - by Michael
    Is it possible to dynamically (and generically) clear the state of all of a user control's child controls? (e.g., all of its TextBoxes, DropDrownLists, RadioButtons, DataGrids, Repeaters, etc -- basically anything that has ViewState) I'm trying to avoid doing something like this: foreach (Control c in myUserControl.Controls) { if (c is TextBox) { TextBox tb = (TextBox)c; tb.Text = ""; } else if (c is DropDownList) { DropDownList ddl = (DropDownList)c; ddl.SelectedIndex = -1; } else if (c is DataGrid) { DataGrid dg = (DataGrid)c; dg.Controls.Clear(); } // etc. } I'm looking for something like this: foreach (Control c in myUserControl.Controls) c.Clear(); ...but obviously that doesn't exist. Is there any easy way to accomplish this dynamically/generically?

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  • How do I make calls to a WCF service with jquery ajax from an SSL-secured page?

    - by NovaJoe
    I have a WCF service returning JSON to jQuery ajax calls and presenting the results on an ASPX page. When the page is NOT under SSL, the ajax calls work perfectly. When the page IS under SSL, the calls fail. I understand that this behavior must be due to the Same Origin Policy (SOP). So, how do I setup my WCF service to accept calls from an SSL-secured page? Does the WCF service also need to be secured? If so, how do I do this? Thanks, Joe

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  • Design support for templated UserControl

    - by SaphuA
    Hello, I have created a real simple templated UserControl using the following tutorial: http://msdn.microsoft.com/en-us/library/36574bf6(VS.80).aspx I can now add this control to my mvc 2.0 application using: <components:Box BoxType="Help" Title="Content Title" runat="server"> <Content> <%: Html.TextBox("test") %> This is my awesome content!<br /> <b>Test</b> </Content> </components:Box> However, when I go to the designer, I get an exception: Type 'System.Web.UI.UserControl' does not have a public property named 'Content'. How can I fix this? I don't even need to use the drag-and-drop designer, just rendering the control will do fine. Thanks!

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  • Loop append div and repeat

    - by Diego Vieira
    I have this code <div class="round-3-top"> <div class="round-2-top"> <div class="round-1-top"></div> <div class="round-1-bottom"></div> </div> <div class="round-2-bottom"> <div class="round-1-top"></div> <div class="round-1-bottom"></div> </div> </div> <div class="round-3-bottom"> <div class="round-2-top"> <div class="round-1-top"></div> <div class="round-1-bottom"></div> </div> <div class="round-2-bottom"> <div class="round-1-top"></div> <div class="round-1-bottom"></div> </div> </div> But i want generate dynamically, how i do that? Ex.: i have 4 rounds, this would be the generated code <div class="round-4-top"> <div class="round-3-top"> <div class="round-2-top"> <div class="round-1-top"></div> <div class="round-1-bottom"></div> </div> <div class="round-2-bottom"> <div class="round-1-top"></div> <div class="round-1-bottom"></div> </div> </div> <div class="round-3-bottom"> <div class="round-2-top"> <div class="round-1-top"></div> <div class="round-1-bottom"></div> </div> <div class="round-2-bottom"> <div class="round-1-top"></div> <div class="round-1-bottom"></div> </div> </div> </div> <div class="round-4-bottom"> <div class="round-3-top"> <div class="round-2-top"> <div class="round-1-top"></div> <div class="round-1-bottom"></div> </div> <div class="round-2-bottom"> <div class="round-1-top"></div> <div class="round-1-bottom"></div> </div> </div> <div class="round-3-bottom"> <div class="round-2-top"> <div class="round-1-top"></div> <div class="round-1-bottom"></div> </div> <div class="round-2-bottom"> <div class="round-1-top"></div> <div class="round-1-bottom"></div> </div> </div> </div> I try using TagBuilder in MVC C# but I can not do. What should happen is, if you are 3 rounds, adding he should go inside each div is like the example above. Any idea how can I develop it?

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  • jquery ajax request is Forbidden in FF 3.6.2 and IE. How to fix (any workaround)?

    - by 1gn1ter
    <script type="text/javascript"> $(function () { $("select#oblast").change(function () { var oblast_id = $("#oblast > option:selected").attr("value"); $("#Rayondiv").hide(); $.ajax({ type: "GET", contentType: "application/json", url: "http://site.com/Regions.aspx/FindGorodByOblastID/", data: 'oblast_id=' + oblast_id, dataType: "json", success: function (data) { if (data.length > 0) { var options = ''; for (p in data) { var gorod = data[p]; options += "<option value='" + gorod.Id + "'>" + gorod.Name + "</option>"; } $("#gorod").removeAttr('disabled').html(options); } else { $("#gorod").attr('disabled', false).html(''); } } }); }); }); </script>

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  • ColdFusion CFC implementation of C# Partial Class?

    - by Brian David Berman
    Does ColdFusion offer a mechanism for splitting CFCs into multiple files? I am NOT talking about extension, I am talking about splitting the SAME CFC into multiple files; the same way C# allows for "partial" classes. The reason for this is because I am using T4 to generate a bunch of CFCs and I want to be able to tag functionality onto the generated CFC by doing so in another file. I want to do this in a way that doesn't violate the Open-Closed Principle.

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  • how do you reuse a partial view with setting different ids

    - by oo
    i have a partial view with a dropdown in it. the code looks like this: <%=Html.DropDownListFor(x => Model.Exercises, new SelectList(Model.Exercises, "Id", "Name", Model.SelectedExercise), new { @id = "exerciseDropdown", @class = "autoComplete" })%> the issue is that i want to reuse this partial view in multiple places but i want to have a different id assigned to the control (instead of exerciseDropdown always) but on the outside i only have this . . <% Html.RenderPartial("ExerciseList", Model); %> is there anyway to pass in an id into a partial view. is there a standard way to inject the ids into a partial view ? right now i am doing things like this: <% Html.RenderPartial("ExerciseList", Model); %> <% Html.RenderPartial("ExerciseList2", Model); %> where ExerciseList and ExerciseList2 are identical but with different ids but i am sure there is a better way.

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  • AJAX Partial Rendering issues for the default page in IIS 7 when using custom http module

    - by WiseGuyEh
    The problem When I try to make a AJAX partial update request (using the UpdatePanel control) from the default page of an IIS7 web site, it fails- instead of returning the html to be updated, it returns the entire page, which then causes the MS AJAX Javascript to throw a parsing shit-fit. The suspected cause I have narrowed the cause down to two issues- making an AJAX request to the default page when I have a certain custom http module registered. A partial rendering request to http://localhost will fail, but a partial rendering request to http://localhost/default.aspx will work fine. Also, If i remove the following line in my custom HttpModule: _application.PreRequestHandlerExecute += OnPreRequestHandlerExecute; The AJAX partial render will work correctly. Wierd huh? Another wierd thing... If I look at trace.axd, I can see that when a partial rendering request fails, two POST requests are logged for the one partial rendering request- one where the default.aspx page executes successfully (trace information such as page_load is logged) but no content is produced and a second that doesn't seem to actually execute (no trace information is logged) but produces content (HTTP_CONTENT_LENGTH is greater than 0). Please help! If anyone with a good knowledge of HTTP modules or the MS AJAX Http module could explain why this is occuring I would be very grateful. As it is, the obvious work arround is to just redirect to default.aspx if the request url is "/" but I would really like to understand why this is occurring.

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  • keep viewdata on RedirectToAction

    - by Thomas Stock
    [AcceptVerbs(HttpVerbs.Post)] public ActionResult CreateUser([Bind(Exclude = "Id")] User user) { ... db.SubmitChanges(); ViewData["info"] = "The account has been created."; return RedirectToAction("Index", "Admin"); } This doesnt keep the "info" text in the viewdata after the redirectToAction. How would I get around this issue in the most elegant way? My current idea is to put the stuff from the Index controlleraction in a [NonAction] and call that method from both the Index action and in the CreateUser action, but I have a feeling there must be a better way. Thanks.

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  • Validation control issue

    - by Mael
    Hello, I have a multiview that simulates a menu with different kind of options. Each view within the multiview control holds a bunch of controls (listbox, label, etc..) Everything worked just fine, until i wanted to implement Validation control(s). For example when i click on my menu viewA gets displayed with its controls. There i wish to implement a RequiredFieldValidator. But the problem is, if i click on a other menu option (which is in fact a other view in my multiview) then it gives the error message 'Please enter a message" which is the errorMessage of the first RequiredFieldValidator of the first menu option (first view). All my controls are named with a unique name, so there is no mixup amongst the ControlToValidate="" Offcourse this is not suitable, cause those menu choices are indepentant. And its not the intention i have to fill in everything, cause its a menu afterall, and not a form where i have to enter everything at once. How can i have a RequiredFieldValidator on my views that do not take each other in account? Some code on how my active view is handled protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { View activeView = (View)this.mvMultiview.FindControl(this.getViewFromRequest()); if (!(activeView == null)) { this.mvMultiview.SetActiveView(activeView); } } } Thanks.

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  • Model Binding to a List using non-sequential indexes. Can I access the index later?

    - by Kid A
    I'm following Phil's great tutorial on model binding to a list. I use input names like this: book[5804].title book[5804].author book[1234].title book[1234].author This works well and the data gets back to the model just fine, populating a list of books. What I'm looking for is a way to get access in the model to the index that was used to send the books. I'd like to get that number, "5804." This is because the index is of semantic importance. If I can access it, it saves me from setting another property on the object (book ID). Is there a way to see, either on the FormCollection or on the model after UpdateModel is called, what the index was when it was sent up?

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  • Need help coming up with a better HtmlHelper Extension method.

    - by zSysop
    Hi all, I've inherited the following code and i was wondering if i could pick at your brains to see if there's a nicer way to do duplicate this. Heres the html for most of our partial input views <% if (Html.IsInputReadOnly()) { %> <td> Id </td> <td> <%= Html.TextBox( "Id" , (Model == null ? null : Model.Id) , new { @readonly = "readonly", @disabled="disabled" } )%> <% } elseif (Html.IsInputDisplayable() == false) { %> <td></td> <td></td> <% } else { %> <td>Id</td> <td><%= Html.TextBox("Id")%> <%= Html.ValidationMessage("Id", "*")%> </td> <%} %> Here are my entension methods public static bool IsInputReadOnly(this HtmlHelper helper) { string actionName = ActionName(helper); // The Textbox should be read only on all pages except for the lookup page if (actionName.ToUpper().CompareTo("EDIT") == 0) return true; return false; } public static bool IsInputDisplayable(this HtmlHelper helper) { string actionName = ActionName(helper); // The Textbox should be read only on all pages except for the lookup page if (actionName.ToUpper().CompareTo("CREATE") == 0) return true; return false; } Thanks in advance

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  • Do session use cookies?

    - by Pandiya Chendur
    This is an interview question asked a month ago.... Do session use cookies? If so,how do they do so? Assume Session["UserId"]=1 how does this session variable uses cookies internally? If so, what will be the name of the cookie and what is the value of that cookie....

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  • Why can't I use resources as ErrorMessage with DataAnnotations?

    - by Jova
    Why can't I do like this? [Required(ErrorMessage = "*")] [RegularExpression("^[a-zA-Z0-9_]*$", ErrorMessage = Resources.RegistrationModel.UsernameError)] public string Username { get; set; } What is the error message telling me? An attribute argument must be a constant expression , typeof expression or array creation expression of an attribute parameter type.

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  • Daily/Weekly/Monthly Record Count Search via StoredProcedure

    - by user270960
    Using MS SQL Server.I have made a Stored Procedure naming "SP_Get_CallsLogged". I have a table named "TRN_Call", and it has one column named "CallTime" which is a DateTime. I have a web-page in my application where the User enters:- 1.StartDate (DateTime) 2.EndDate (DateTime) 3.Period(Daily/Weekly/Monthly) (varchar) (from DropDownList) I want to get the Record Count of those calls in my table *TRN_Call* on the basis of the specified Period(Daily/Weekly/Monthly) selected by user in the DropDownList. e.g. StartDate ='1/18/2010 11:10:46 AM' EndDate ='1/25/2010 01:10:46 AM' Period =Daily So the record count between these above mentioned dates(StartDate+EndDate) should come in a manner so that I can refer to those counts separately i.e. the following:- Date 1/18/2010 Records Found 5 Date 1/19/2010 Records Found 50 Date 1/20/2010 Records Found 15 Date 1/21/2010 Records Found 32 Date 1/22/2010 Records Found 12 Date 1/23/2010 Records Found 15 Date 1/24/2010 Records Found 17 Date 1/25/2010 Records Found 32 and send those Counts to the Web Application so that these counts could be listed then in the Crystal Reports.

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  • how to: handle exceptions, best practices

    - by b0x0rz
    need to implement a global error handling, so maybe you can help out with the following example... i have this code: public bool IsUserAuthorizedToSignIn(string userEMailAddress, string userPassword) { // get MD5 hash for use in the LINQ query string passwordSaltedHash = this.PasswordSaltedHash(userEMailAddress, userPassword); // check for email / password / validity using (UserManagementDataContext context = new UserManagementDataContext()) { var users = from u in context.Users where u.UserEMailAdresses.Any(e => e.EMailAddress == userEMailAddress) && u.UserPasswords.Any(p => p.PasswordSaltedHash == passwordSaltedHash) && u.IsActive == true select u; // true if user found return (users.Count() == 1) ? true : false; } } and the md5 as well: private string PasswordSaltedHash(string userEMailAddress, string userPassword) { MD5 hasher = MD5.Create(); byte[] data = hasher.ComputeHash(Encoding.Default.GetBytes(userPassword + userEMailAddress)); StringBuilder stringBuilder = new StringBuilder(); for (int i = 0; i < data.Length; i++) { stringBuilder.Append(data[i].ToString("x2")); } Trace.WriteLine(String.Empty); Trace.WriteLine("hash: " + stringBuilder.ToString()); return stringBuilder.ToString(); } so, how would i go about handling exceptions from these functions? they first one is called from the Default.aspx page. the second one is only called from other functions from the class library. what is the best practice? surround code INSIDE each function with try-catch surround the FUNCTION CALL with try-catch something else?? what to do if exceptions happen? in this example: this is a user sign in, so somehow even if everything fails, the user should get some meaningful info - along the lines: sign in ok (just redirect), sign in not ok (wrong user name / password), sign in not possible due to internal problems, sorry (exception happened). for the first function i am worried if there is a problem with database access. not sure if there is anything that needs to be handled in the second one. thnx for the info. how would you do it? need specific info on this (easier for me to understand), but also general info on how to handle other tasks/functions. i looked around the internet but everyone has different things to say, so unsure what to do... will go with either most votes here, or most logicaly explained answer :) thank you.

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  • Best approach to write huge xml data to file?

    - by Kayes
    Hi. I'm currently exporting a database table with huge data (100000+ records) into an xml file using XmlTextWriter class and I'm writing directly to a file on the physical drive. _XmlTextWriterObject = new XmlTextWriter(_xmlFilePath, null); While my code runs ok, my question is that is it the best approach? Or should I write the whole xml in memory stream first and then write the xml document in physical file from memory stream? And what are the effects on memory/ performance in both cases?

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