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  • ASP.NET check if LinqToEntities returned something or not.

    - by Alex
    How to make this method return boolean value, depending on query return. False - nothing, True - data exists. Before i just returned int from uniqueQuote.Count() but does not look like great method. Thank you! private bool CheckEnquiryUser(int enquiryId, Guid userId) { int selectedEnquiryId = enquiryId; Guid currentUserId = userId; Entities ctx3 = new Entities(); var uniqueQuote = from quot in ctx3.Enquiries.Include("aspnet_Users") where quot.EnquiryId == selectedEnquiryId && quot.aspnet_Users.UserId == currentUserId select quot; bool exist = uniqueQuote; return exist;

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  • Can't get a List(Of <my class>) from a Dictionary in .NET?

    - by magsto
    I have a Dictionary with key of type UInteger and the value is List(Of Session) where the (Public) class Session contains a couple of variables and a constructor (Public Sub New(...)). Some of the variables in my Session class is: Private count As Integer Private StartDate As Date Private Values As List(Of Integer) and a couple of methods like: Friend Sub Counter(ByVal c as Integer) count += c End Sub There is no problem to add values to the Dictionary: Dim Sessions As New List(Of Session) Dim dict As New Dictionary(Of Integer, Sessions) then some code to fill up a couple of Session objects in Sessions (not shown here) and then: dict.Add(17, Sessions) 'No problem Sessions.Clear() Sessions = dict(17) 'This doesn't return anything! The Sessions object is empty even if the code doesn't returned any error. Is my class Session to compex to be stored in a Dictionary?

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  • How do you ensure a mimetype in asp.net?

    - by Sem Dendoncker
    Hello, I have the following code to export a zip file: byte[] buffer = FileUtil.FileToByteArray(zipLocation, true); // push the memory data to the client. _ctx.Response.ContentType = "application/zip"; _ctx.Response.AddHeader("content-disposition", String.Format("attachment; filename={0}", String.Format("map{0}.zip", mapId))); _ctx.Response.BinaryWrite(buffer); This code works great. After every export I get a perfectly made zipfile. The problem however is that when I try to import it, the mimetype sometimes is "application/empty". Now I wonder how can I ensure that the mimetype is always added? Cheers, M.

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  • Difference between `<%#` and `<%=` and an asp.net ascx file?

    - by jax
    I understand that <%= is for returning a String I seem to usually use <%# in my .ascx files. For example the following works OnClientClick=<%# String.Format("return confirm('Are you sure you wish to delete barcode ({0})?');", Eval("BARCODE") ) %> The following does not work OnClientClick=<%# String.Format("return confirm('Are you sure you wish to delete barcode ({0})?');", Eval("BARCODE") ) %>

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  • ASP.NET MVC - how to get the value from a textbox in my View?

    - by fearofawhackplanet
    If I have a textbox in my view: <div><%= Html.TextBox("Comments", Model.Comments)%></div> I want to post the contents of this textbox to the controller with an Ajax call. I only need this one value though, so I don't want to post the whole form back. <%= Ajax.ActionLink("update", "UpdateComments", new { comments = /* ????? */ }, new AjaxOptions { HttpMethod="POST" })%> How do I get the textbox value?

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  • how to use the results of a method in another method in a different class initialization at vb.net

    - by singgih
    I have a class which has the following methods: Public Function rumusbuffer () As Decimal buffer = (ukuranblok - pntrblok) / (ukrnrecord + pntrblok) Return buffer End Function Public Function rumusW () As Decimal interblock = pntrblok + ((pntrblok + intrblok) / buffer) Return interblock End Function how can I make the buffer can be used on its function rumusw but different forms so that her class should be re-initialization .. but the calculation method can rumusbuffer rumusw d use in the method?

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  • How do I add events to nested server controls? (ASP.Net)

    - by bert
    I am building a custom master page type control i.e. sort of like a datagrid but should be easier to add custom functionality into it. It's going great but part of the desired functionality is to have a paging control that switches on and off and part of that control would be a textbox that displays the current page number and on TextChanged redirects to the new page of the dataset. The problem I'm having is that technically the textbox which has its event fired is embedded in a control that is embedded in the control you actually put on the page sort of like Page  | Display Control  | Paging Control  | Textbox Buried all the way down there the event is not firing. Worse the postback javascript isn't even being written onto the page (Nothing on the page posts back so far this is the only bit that really needs to). I've been trawling around Google for quite a while now and picked up that I need to implement INamingContainer (done) and I need to add the control into the page's control tree (is Pre_Init too late for that? When's a good time to Add the Control to the page?) then the event should fire, apparently. But I've been unable to find an example of best practice on this there are quite a few near misses where people are having button angst but this isn't a button. So can anyone point me in the direction of getting a control embedded in a control embedded in a control added to a page to behave properly?

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  • .NET grouping forms so that pulling up the primary form shows all other forms?

    - by toasteroven
    I have an app that can open up some other forms at the user's request, and they're set to not show in the taskbar. The problem is, if one of the secondary windows becomes hidden by another app, switching to the primary window only brings that form to the forefront. Is there a good way to "group" the forms so that giving any of them focus brings the whole group to the front? I tried calling BringToFront() on each form in the primary form's Activated event, but that also gives the secondary forms focus, making it impossible to interact with the primary form.

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  • ASP.NET MVC: Redundant (strongly typed) views in CRUD areas.

    - by UpTheCreek
    In the CRUD areas of my MVC app I have lots of seemingly pointless view files, such as: <%@ Page Title="" Language="C#" MasterPageFile="Some.Master" Inherits="System.Web.Mvc.ViewPage<SomeModel>" %> <asp:Content ID="ContentID" ContentPlaceHolderID="SomePlaceHolder" runat="server"> <%= Html.DisplayForModel() %> </asp:Content> This is of course pretty unDRY. Is it possible to use a shared view for this while at the same time preserving the Strong Typing? (e.g. by specifying the generic type in the controller?)

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  • ASP.NET MVC vs. Jquery/AJAX (Where to draw the dividing line?)

    - by punkouter
    I am learning MVC and I understand the basics now. It is very good for CRUD pages and has built in HTTP methods to post/get edits/updates. That is nice. This is all very testable by just creating a new controller and testing it. But I was thinking about other web page scenerios when using MVC. What about a page that has 2 listboxes that you add/remove users with. (A button will move the user from one listbox to another) This would be done using Jquery/Javascript... But then what happens to testing? How do you test adding/removing users from a listbox like that example? It seems to me the more jquery you use the less testable the page becomes right? When you get beyond basic forms being filled out then you need to use something more than the standard MVC pages. What is the correct philosophy on this on when am I not understanding ?

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  • How to Pass complex objects in ASP.NET MVC using Get parameters?

    - by VJ
    I am wanting to pass something like the following to my view from my controller via GET not POST: public class MyDTO { public string val1 { get; set; } public string val2 { get; set; } public MyObject obj { get; set; } } public class MyObject { public int SomeInt { get; set; } public string ACoolValue { get; set; } public string YetAnotherCoolValue { get; set; } } And then the controller would like like this. (Note it is a GET): public ActionResult MyView(MyDTO dto) { return View(dto) } The problem is that the instance of MyObject is coming back as null, where val1 and val2 have data. Has anyone run across this?

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  • [VB.NET] Same name methods in different modules cause ambiguity.

    - by smwikipedia
    I have 2 modules. Each contains a Sub with the same name. See below: Module moduleA Public Sub f(ByVal arg1 As myType) Console.WriteLine("module A") End Sub End Module Module moduleB Public Sub f(ByVal arg1 As myType, ByVal arg2 As Boolean) Console.WriteLine("module B") End Sub End Module But the compiler complains that there's ambiguity between moduleA and moduleB. How could this be? I have totally different signatures. However, if I put the 2 methods into the same module, there's no ambiguity at all. Could someone tell me why? Many thanks.

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  • can i have a date in the url of a route in asp.net ?

    - by oo
    This code below doesn't seem to work but i can't figure out why. If i have a user entered textbox that is a datepicker and the results are displayed as: 21-May-2010 , can i take this value and stick it into a URL to send over to a controller action so instead of an id (which is an int), i want a id which is a date value View / Javascript Code: $.get('/Tracker/DailyBlog/' + this.val(), function(data) { $('#dailyblog').html(data); }); ControllAction Code: public ActionResult DailyBlog(DateTime blogDate) { //go do something } any idea why this is not working ?

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