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  • Pass List of models to controller ASP.NET MVC 5

    - by user3697231
    I have a view where user can enter some data. But problem is this: Let's say you have 3 text box on view. Every time user can fill multiple times this 3 text boxes. To clarify, let's say user fills this 3 text boxes and press button which adds on form again these 3 text boxes. Now when user clicks submit this form is sent to controller, but how do I sent List of models as parameter. My architecture for this problem is something like this: MyModel public int ID { get;set; } public string Something { get; set; } /*This three textboxes can user set multiple times*/ /*Perhaps i Can create new model with these properties and then /*put List of that model as property here, but how to fill that list inside view ??*/ public string TextBoxOneValue { get; set; } public string TextBoxTwoValue { get; set; } public string TextBoxThreeValue { get; set; } Now, i was thinking that i Create PartialView with this 3 text boxes, and then when user clicks button on view another PartialView is loaded. And now, let's say I have Two partial views loaded, and user clicks submit, how that I pass list with values of these 3 text boxes to controller ??

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  • .NET 4 ... Parallel.ForEach() question

    - by CirrusFlyer
    I understand that the new TPL (Task Parallel Library) has implemented the Parallel.ForEach() such that it works with "expressed parallelism." Meaning, it does not guarantee that your delegates will run in multiple threads, but rather it checks to see if the host platform has multiple cores, and if true, only then does it distribute the work across the cores (essentially 1 thread per core). If the host system does not have multiple cores (getting harder and harder to find such a computer) then it will run your code sequenceally like a "regular" foreach loop would. Pretty cool stuff, frankly. Normally I would do something like the following to place my long running operation on a background thread from the ThreadPool: ThreadPool.QueueUserWorkItem( new WaitCallback(targetMethod), new Object2PassIn() ); In a situation whereby the host computer only has a single core does the TPL's Parallel.ForEach() automatically place the invocation on a background thread? Or, should I manaully invoke any TPL calls from a background thead so that if I am executing from a single core computer at least that logic will be off of the GUI's dispatching thread? My concern is if I leave the TPL in charge of all this I want to ensure if it determines it's a single core box that it still marshalls the code that's inside of the Parallel.ForEach() loop on to a background thread like I would have done, so as to not block my GUI. Thanks for any thoughts or advice you may have ...

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  • ASP.Net MVC and Windows 7 404 error

    - by Paul Rivers
    O.K. Stupid question..... I sepnt nearly a day getting an MVC site working, and then I published it. After that, the hell began. I'm using Windows 7, Visual Studio 2008 and MVC. I published it and first the Default.aspx wouldn't come up. I gave up on playing with that for a few and just did the easy thing a typed in default.aspx. I'll fix that problem later. So, I clicked on one of my navigation buttons which prior to this worked just fine in the internal development IIS, and I get a 404 error. I spent two days surfing the Microsoft support forums and every other support forum I can find. No fix. So, I tried something a little different. Just to see if I screwed up. I created a new TestMVC application. Set the output to a website on the local IIS. Compiled and after typing in the default.aspx (it was set as the startup file in the project) I then clicked on the About button on the base MVC application. And what do I get? 404. I know this is new, folks, but this is crazy. What is it about this process that would take this much effort to get it right, especially since it works on the test server.

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  • Doing a lot of input validation in VB.NET

    - by Andy
    I have a form set up where users can enter their booking for a room at my college. I want to validate the user input to avoid SQL injection (my program uses a MS Access database) and also stop numbers and synbols in their name, etc. I can do the validation fine, but there is to be a lot of validation and then methods executed only if all validation tests come back as true. I did have something like this: If txtName.Text = "" Then frmBookErr.SetError(txtName, "Name field cannot be left blank.") fail = 1 Else frmBookErr.SetError(txtName, "") fail = 0 End If And then check the fail variable, but it obviously gets overridden later in the form if one of the validation tests come back as true. Can anyone provide some input into this? Thanks.

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  • Find Label Control in Repeater Asp.net

    - by user2769165
    I am using repeater and I want to find the label control in my repeater. here is my code <asp:Repeater ID="friendRepeater" runat="server"> <table cellpadding="0" cellspacing="0"> <ItemTemplate> <tr style=" width:700px; height:120px;"> <td> <div style=" padding-left:180px;"> <div id="leftHandPost" style="float:left; width:120px; height:120px; border: medium solid #cdaf95; padding-top:5px;"> <div id="childLeft" style=" padding-left:5px;"> <div id="photo" style=" border: thin solid black; width:100px;height:100px;"> <asp:Image id="photoImage" runat="server" ImageUrl='<%# String.Concat("Images/", Eval("Picture")) %>' Width="100px" Height="100px" /> </div> </div><!--childLeft--> </div><!--leftHandPost--> </div> </td> <td> <div id="rightHandPost" style=" float:right; padding-right:260px;"> <div id="childRight" style="width:400px; height:120px; border: medium solid #cdaf95; padding-top:5px; padding-left:10px;"> <strong><asp:Label id="lblName" runat="server"><%# Eval("PersonName") %></asp:Label></strong><br /> <div style=" float:right; padding-right:10px;"><asp:Button runat="server" Text="Add" onClick="add" /></div><br /> <asp:Label id="lblID" runat="server"><%# Eval("PersonID") %></asp:Label><br /> <asp:Label id="lblEmail" runat="server"><%# Eval("Email") %></asp:Label> </div><!--childRight--> </div><!--rightHandPost--> </td> </tr> </ItemTemplate> <AlternatingItemTemplate> <tr style=" width:700px; height:120px;"> <td> <div style=" padding-left:180px;"> <div id="Div1" style="float:left; width:120px; height:120px; border: medium solid #cdaf95; padding-top:5px;"> <div id="Div2" style="padding-left:5px;"> <div id="Div3" style=" border: thin solid black; width:100px;height:100px;"> <asp:Image id="photoImage" runat="server" ImageUrl='<%# String.Concat("Images/", Eval("Picture")) %>' Width="100px" Height="100px" /> </div> </div><!--childLeft--> </div><!--leftHandPost--> </div> </td> <td> <div id="Div4" style=" float:right; padding-right:260px;"> <div id="Div5" style="width:400px; height:120px; border: medium solid #cdaf95; padding-top:5px; padding-left:10px;"> <strong><asp:Label id="lblName" runat="server"><%# Eval("PersonName")%></asp:Label></strong> <div style=" float:right; padding-right:10px;"><asp:Button id="btnAdd" runat="server" Text="Add" onClick="add"></asp:Button></div><br /> <br /> <asp:Label id="lblID" runat="server"><%# Eval("PersonID") %></asp:Label><br /> <asp:Label id="lblEmail" runat="server"><%# Eval("Email") %></asp:Label> </div><!--childRight--> </div><!--rightHandPost--> </td> </tr> </AlternatingItemTemplate> <FooterTemplate> </table> </FooterTemplate> </asp:Repeater> Here is the code behind for the add button. protected void add(object sender, EventArgs e) { DateTime date = DateTime.Now; System.Web.UI.WebControls.Label la = (System.Web.UI.WebControls.Label)friendRepeater.FindControl("PersonID"); String id = la.Text; try { MySqlConnection connStr = new MySqlConnection(); connStr.ConnectionString = "Server = localhost; Database = healthlivin; Uid = root; Pwd = khei92;"; String insertFriend = "INSERT INTO contactFriend(friendID, PersonID, PersonIDB, date) values (@id, @personIDA, @personIDB, @date)"; MySqlCommand cmdInsertStaff = new MySqlCommand(insertFriend, connStr); cmdInsertStaff.Parameters.AddWithValue("@id", "F000004"); cmdInsertStaff.Parameters.AddWithValue("@personIDA", "M000001"); cmdInsertStaff.Parameters.AddWithValue("@personIDB", id); cmdInsertStaff.Parameters.AddWithValue("@date", date); connStr.Open(); cmdInsertStaff.ExecuteNonQuery(); MessageBox.Show("inserted"); connStr.Close(); } catch (Exception ex) { MessageBox.Show(ex.ToString()); } } I have get the error of Object reference not set to an instance of an object. I think is because there are no value in the Label. The Find Control are not working. May I know how can fix this problem? Thank you very much

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  • Asp.net profile in a separate assembly

    - by Shimrod
    Hi everyone, I have a web application which uses membership and profiles. I successfully used the WebProfileBuilder extension, so my profile class is correctly generated, and is working nicely. However, after a new request of my client, I need now to move that profile management part into another assembly (so I'd be able to get profile information in a windows service running on the same machine). What I made is created the new assembly, moved my generated profile file, and tried to use it from the other assembly, but without any success. I always get a SettingsPropertyNotFoundException. My tought is that the profile system doesn't know where to find its connection information, so I tried to add the connectionstring and provider in the app.config of this assembly, but this doesn't seem to work. What am I missing ? Is it possible to do ? Thanks in advance!

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  • Creating a Month Dropdown in C# ASP.NET MVC

    - by Chris M
    This method seems stupid and a bit heavy; is there a more optimal way of creating the same thing (its for an MVC View Dropdown) private List<KeyValuePair<int, string>> getMonthListDD { get { var dDur = new List<KeyValuePair<int, string>>(); dDur.Add(new KeyValuePair<int, string>(1, "January")); dDur.Add(new KeyValuePair<int, string>(2, "Febuary")); dDur.Add(new KeyValuePair<int, string>(3, "March")); dDur.Add(new KeyValuePair<int, string>(4, "April")); dDur.Add(new KeyValuePair<int, string>(5, "May")); dDur.Add(new KeyValuePair<int, string>(6, "June")); dDur.Add(new KeyValuePair<int, string>(7, "July")); dDur.Add(new KeyValuePair<int, string>(8, "August")); dDur.Add(new KeyValuePair<int, string>(9, "September")); dDur.Add(new KeyValuePair<int, string>(10, "October")); dDur.Add(new KeyValuePair<int, string>(11, "November")); dDur.Add(new KeyValuePair<int, string>(12, "December")); return dDur; } }

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  • String / DateTime Conversion problem (asp.net vb)

    - by Phil
    I have this code: Dim birthdaystring As String = MonthBirth.SelectedValue.ToString & "/" & DayBirth.SelectedValue.ToString & "/" & YearBirth.SelectedValue.ToString Dim birthday As DateTime = Convert.ToDateTime(birthdaystring) Which produces errors (String was not recognized as a valid DateTime.) The string was "01/31/1963". Any assistance would be appreciated. Thanks.

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  • .Net SQL Parameter for String List Problem

    - by JK
    I am writing a C# program in which I send a query to SQL Server to be processed and a dataset returns. I am using parameters to pass information to the query before it is sent to SQL server. This works fine except in the situation below. The query looks like this: reportQuery = " Select * From tableName Where Account_Number in (@AccountNum); and Account_Date = @AccountDate "; The AccountDate parameter works find but not the AccountNum parameter. I need the final query to execute like this: Select * From tableName Where Account_Number in ('AX3456','YZYL123','ZZZ123'); and Account_Date = '1-Jan-2010' The problem is that I have these account numbers (actually text) in a C# string list. To feed it to the parameter, I have been declaring the parameter as a string. I turn the list into one string and feed it to the parameter. I think the problem is that I am feeding the paramater this: "'AX3456','YZYL123','ZZZ123'" when it wants this 'AX3456','YZYL123','ZZZ123' How do I get the string list into the query using a parameter and have it execute as shown above? This is how I am declaring and assigning the parameter. SqlParameter AccountNumsParam = new SqlParameter(); AccountNumsParam.ParameterName = "@AccountNums"; AccountNumsParam.SqlDbType = SqlDbType.NVarChar; AccountNumsParam.Value = AccountNumsString; FYI, AccountNumString == "'AX3456','YZYL123','ZZZ123'"

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  • Run sub on main thread from separate thread [VB.NET|SerialPort]

    - by Steven
    I'm reading data from a serial port, but the DataReceived event of SerialPort is handled on it's own thread. I want to handle this on the main thread, but simply declaring an event and raising it still results in it being processed on the SerialPort thread. I'm assuming I need to declare a delegate I can call, but I don't see how that would work. For example, I want to call Sub HandleDataReceived() on the main thread from the DataReceived thread, having HandleDataReceived() run on the main thread. How would I do this?

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  • ASP.Net layered communication

    - by Chris Klepeis
    Hi, We're developing a layered web application. The specs: 3 layers, data layer, business layer, ui layer. Programmed in C# Data Layer uses the entity framework Currently we plan on having the data layer return IEnumerable<T> to the business layer via linq 2 entities, and the business layer will return data to the ui layer. Since the ui layer has no knowledge of the existance of the data layer, how would it handle a result of IEnumerable passed to it from the BLL, where T is defined in the data layer? Are there any GOOD example out there on how to do this. Please note that I'm extremely new to factories / interfaces / abstraction to loosely couple layers. I saw the question here http://stackoverflow.com/questions/917457/passing-data-in-an-ntier-application and it was recommended to have the entity layer shared amongst all layers... however I do not want the other layers to be able to query the database.

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  • Asp.Net MVC How to test that the view rendered

    - by Miau
    HI there I was wondering if there is a better way of testing that a view has rendered in MVC. I was thinking perhaps I should render the view to a string but perhaps there are simpler methods? Basically what I want to know if that the view for a given action has rendered without errors I m already testing the view model but I want to see that rendering the view giving a correct ViewData.Model works

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  • .NET Runtime Object Browser.

    - by user290907
    Is there a framework which can be used in your application, to make it expose internal objects on some port for inspection. for.e.g. after i start my application in this case a GUI Application, and then say launch http://localhost:9100 then it should show me the statistics of the app. I played a bit with HttpListener accepting connections and then outputting raw HTML, it works fine for simple tasks, but there is too much worked involved if i have make a proper object browser. Thanks in Advance.

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  • Javascript update before page loads in ASP.NET

    - by user204588
    Hello, I'm trying to update values from a xml file into textboxes. I have this javascript being called in the Page_Load event this.Page.ClientScript.RegisterStartupScript(this.GetType(), "Script", sb.ToString(), true); I click the continue button which does a post back but the values are not updated until I refresh the page again which makes me think the js isn't being run until after the page is returned. I'm wondering how to have the values updated when the page is refreshed after the button postback. thanks

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  • How to make paging start from 1 instead of 0 in ASP.NET MVC

    - by ssx
    I used the paging example of the Nerddinner tutorial. But I also wanted to add page Numbers, somehting like that: <<< 1 2 3 4 5 6 The code below works if i start my paging from 0, but not from 1. How can I fix this ? Here is my code: PaginatedList.cs public class PaginatedList<T> : List<T> { public int PageIndex { get; private set; } public int PageSize { get; private set; } public int TotalCount { get; private set; } public int TotalPages { get; private set; } public PaginatedList(IQueryable<T> source, int pageIndex, int pageSize) { PageIndex = pageIndex; PageSize = pageSize; TotalCount = source.Count(); TotalPages = (int) Math.Ceiling(TotalCount / (double)PageSize); this.AddRange(source.Skip(PageIndex * PageSize).Take(PageSize)); } public bool HasPreviousPage { get { return (PageIndex > 0); } } public bool HasNextPage { get { return (PageIndex+1 < TotalPages); } } } UserController.cs public ActionResult List(int? page) { const int pageSize = 20; IUserRepository userRepository = new UserRepository(); IQueryable<User> listUsers = userRepository.GetAll(); PaginatedList<User> paginatedUsers = new PaginatedList<User>(listUsers, page ?? 0, pageSize); return View(paginatedUsers); } List.cshtml @if (Model.HasPreviousPage) { @Html.RouteLink(" Previous ", "PaginatedUsers", new { page = (Model.PageIndex - 1) }) } @for (int i = 1; i <= Model.TotalPages; i++) { @Html.RouteLink(@i.ToString(), "PaginatedUsers", new { page = (@i ) }) } @if (Model.HasNextPage) { @Html.RouteLink(" Next ", "PaginatedUsers", new { page = (Model.PageIndex + 1) }) }

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  • Basic Application Organization + Publishing (.NET 4.0)

    - by keynesiancross
    Hi all, I'm trying to figure out the best way to keep my program organized. Currently I have many class files in one project file, but some of these classes do things that are very different, and some I would like to expose to other applications in the future. One thought I had to organizing my application was to create multiple project files, with one "Main" project, which would interact with all the other projects and their relevant classes as needed. Does this make sense? I was wondering if anyone had any suggestions in regards to using multiple project files in one solution (and how do you create something like this?), and if it makes sense to have multiple namespaces in one solution... Cheers ----Edit Below---- Sorry, my fault. Currently my program is all in one console project. Within this project I have several classes, some of which basically launch a BackgroundWorker and run an endless loop pulling data. The BackgroundWorker then passes this data back to the main business logic as needed. I'm hoping to seperate this data pull material (including the background worker material) into one project file, and the rest of the business logic into another project file. The projects will have to pass objects between eachother though (the data to the main business logic, and the business logic will pass startup parameteres to the dataPull project)... Hopefully this adds a bit more detail.

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  • asp.net mvc checkbox hierarchy

    - by mazhar
    I want to create a checkboxes hierarchy like this in mvc2.How would I be able to achieve this in the most simplest manner. Administrator Manage User Add Edit Delete View Manage Feature Add Edit Delete View Moderator Manage User Add Edit Delete View Manage Feature Add Edit Delete View

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  • wrap text around image control in C#.Net

    - by Ravi
    Hi, I am working on C#.DotNet windows application project, here i am using Infragistics control. In this project i want to add image over text control. This image contains two portion, 35% of image have white color another 65% of image have green color.In this image 2nd portion(green color) i have to display dynamic string , this string size may dynamically updating. But this string dont go first portion(white color) of image. For that i am using UltraLabel control. I have add image in UltraLabel ImageBackground property and TextHAlign set as Right. But here small 15 charecter string means appear only second portion(green color), 20 charecter string means appeaer second & first portion. I don't want to display first portion of image. Thanks

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  • VB.net SyncLock Object

    - by Budius
    I always seen on SyncLock examples people using Private Lock1 As New Object ' declaration SyncLock Lock1 ' usage but why? In my specific case I'm locking a Queue to avoid problems on mult-threading Enqueueing and Dequeueing my data. Can I lock the Queue object itself, like this? Private cmdQueue As New Queue(Of QueueItem) ' declaration SyncLock cmdQueue ' usage Any help appreciated. Thanks.

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  • VB.NET and linQ: How to delete entries from a dictionary using the value

    - by user350233
    I have a dictionary collection as bleow: mydic.addvalue(key1, val1) mydic.addvalue(key2, val1) mydic.addvalue(key3, val1) mydic.addvalue(key4, val2) mydic.addvalue(key5, val2) From the above dictionary I want to delete all the entries where value == "val1", so that the result would have only following entry: mydic.addvalue(key4, val2) mydic.addvalue(key5, val2) My VB source code is on VS2008 and targeted for 3.5

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