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  • Set a dropdown option to selected based on get variable in url in Razor MVC

    - by Mason240
    I have a dropdown menu in a GET form. When the user hits submit, they are directed to the same page and shown the form again. I would like to have the dropdown option the user displayed in the last page already selected. So for example: @Html.DropDownList("Type", null, "Type", new { @class = "sbox-input" } ) website.com/Search?Type="Beef" <select name="Type"> <option value="Fish" >Fish</option> <option value="Chicken" >Chicken</option> <option value="Beef" selected="selected">Beef</option> </select> A jQuery solution would work just as well.

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  • C# myths about best practices?

    - by TheMachineCharmer
    My colleague keeps telling me of the things listed in comments. I am confused. Can somebody please demystify these things for me? class Bar { private int _a; public int A { get { return _a; } set { _a = value; } } private Foo _objfoo; public Foo OFoo { get { return _objfoo; } set { _objfoo = value; } } public Bar(int a, Foo foo) { // this is a bad idea A = a; OFoo = foo; } // MYTHS private void Method() { this.A //1 - this._a //2 - use this when inside the class e.g. if(this._a == 2) A //3 - use this outside the class e.g. barObj.A _a //4 - // Not using this.xxx creates threading issues. } } class Foo { // implementation }

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  • HttpPostedFile.SaveAs() throws UnauthorizedAccessException even though the file is saved?

    - by jrummell
    I have an aspx page with multiple FileUpload controls and one Upload button. In the click handler I save the files like this: string path = "..."; for (int i = 0; i < Request.Files.Count - 1; i++) { HttpPostedFile file = Request.Files[i]; string fileName = Path.GetFileName(file.FileName); string saveAsPath = Path.Combine(path, fileName); file.SaveAs(saveAsPath); } When file.SaveAs() is called, it throws: System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. --- System.UnauthorizedAccessException: Access to the path '...' is denied. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy) at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy) at System.IO.FileStream..ctor(String path, FileMode mode) at System.Web.HttpPostedFile.SaveAs(String filename) at Belden.Web.Intranet.Iso.Complaints.AttachmentUploader.btnUpload_Click(Object sender, EventArgs e) at System.Web.UI.WebControls.Button.OnClick(EventArgs e) at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace --- at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.departments_iso_complaints_uploadfiles_aspx.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) Now here's the fun part. The file is saved correctly! So why is it throwing this exception?

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  • What are the benefits of using WCF?

    - by sontek
    We currently just utilize soap webservices for all our communication but have been thinking about moving to WCF instead. What are the benefits of using it over an asmx service? If we do go with a WCF service, can other languages still communicate with it? SOAP is standardized and all languages can interact with it. Are there any really good examples of how to get started with WCF that show the benefits of it over soap? EDIT I just found this question which is quite helpful. The Getting Started Tutorial is great.

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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 can I get System.Type from "System.Drawing.Color" string

    - by jonny
    I have an xml stored property of some control <Prop Name="ForeColor" Type="System.Drawing.Color" Value="-16777216" /> I want to convert it back as others System.Type type = System.Type.GetType(propertyTypeString); object propertyObj = TypeDescriptor.GetConverter(type).ConvertFromString(propertyValueString); System.Type.GetType("System.Drawing.Color") returns null. The question is how one can correctly get color type from string (it will be better not to do a special case just for Color properties) Update from time to time this xml will be edited by hand

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  • How do I use a spark variable in an html helper?

    - by Quintin Par
    Can I use a spark variable inside an html helper? Say we have <var url="Url.Action(“get”)" /> !{Html.Image("~/Content/up.png")} Now if I need to use the url inside Html.Image as an attribute(part of the 2nd param) to get <img src="~/Content/up.png" type="~/engine/get" /> how do I go about doing it?

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  • How to show hierarchial data in a dropdownlist.

    - by vaibhav
    I have a table in sqlserver 2005. I want to show all domain name in a dropdownlist maintaing the same hierarchy. i.e Law Engineering --civil --Mechanical Medical --Dental ----Cavity --MBBS I need to append '--' according to the domain level. Is it possible using a sql query. or alternatively can I have any other control to show this data.

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  • How do i configure optional flags in MVC 1.0 routes

    - by Thomas Jespersen
    I want to configure a route with optional flags. E.g. I want to be able to call the products page and send optional filters (flags) for offers and in stock options. If the flags are NOT specified then all products should be returned. http://localhost/products http://localhost/products/onlyOnOffer http://localhost/products/onlyInStock http://localhost/products/onlyInStock/onlyOnOffer [AcceptVerbs(HttpVerbs.Get)] public ActionResult GetProducts(bool onlyInStock, bool onlyOnOffer) { //... } How would I configure the route? Is it even possible in MVC 1.0? What about MVC 2.0.

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  • Updating a gridview based on dundas chart callback

    - by Daud
    I have a dundas pie chart which when clicked issues a client callback which updates another chart associated with it. Basically its like a drill down thing. I also want to update my gridview based on the user's selection of the pie. But since the update of chart is being done using dundas client callback I'm unable to rebind my Gridview. Is there any way to do it? .

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  • Can Entity Framework be used for the purpose of entity/schema definition at application runtime?

    - by Kabeer
    Hello. Can 'Entity Framework' be used for the purpose of entity definition at application runtime? Ok, to make it simple, here is what I want to achieve: My application is a product. I should be able to define entities at runtime on the basis of inputs gathered from an 'authoring' user (in effect this means 'model first' approach). These entities are of course persistable. Further, after having defined the entities and their relationships, I should be able to make complex queries across them for many reasons, including reports. Is the above possible and how? So far what I have realized is that there is a dependency on Visual Studio.

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  • Web Deployment Projects tool and Web application project

    - by SourceC
    Hello, Q1 - As far as I know, Visual Studio doesn’t use aspnet_compiler.exe when compiling web application projects. And since Web Deployment Projects (WDP) tool is only used for manipulation the output created by aspnet_compiler.exe, I don’t understand how VS 2008 also has an option for using WDP with web application projects?! Q2 - What is a stock project? thanx EDIT: So I was right about the fact that Visual Studio doesn’t use aspnet_compiler.exe when compiling web application projects? much appreciated

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  • How can avoid at this line an OverflowException?

    - by SoMoS
    LastInput.time is an Integer and m_idleTime is an Integer too. This line sometimes generates an Overflow exception, I think that this happens when both values are big negative values. (Environment.TickCount - lastInput.time) > m_idleTime How can I avoid that? With casting? (CType(Environment.TickCount,Long) - CType(lastInput.time,Long)) > m_idleTime Or maybe with this cast? CType((Environment.TickCount - lastInput.time),Long) > m_idleTime Thanks in advance.

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  • .getScript getting the redirect url of javascript

    - by user177883
    I d like to execute a remote javascript which redirects the user to another page on my domain with data that s passes as query string. I want to get this data which is passed on to the page on my domain. $.getScript('http://site.com/foo.js', function() { //foo.js redirects to another page on my domain with data // and i d like to capture that data from this function, // at least if i find the parameters that passed on there, i ll be fine. }); What to do ? http://api.jquery.com/jQuery.getScript/

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  • linq, selecting columns as IEnumerable<DataRow>

    - by joe
    how can i do in linq: IEnumerable<DataRow> query = from rec in dt.AsEnumerable() where rec.Field<decimal>("column2") == 1 && foo(rec.Field<decimal>("column1")) select new { column1 = rec.Field<decimal>("column1"), column2 = rec.Field<decimal>("column2"), column3 = rec.Field<decimal>("column3")} ; this does not work. Im trying to select some columns as new datatable then join it later with some other datatable.

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  • CompareValidator issue on Firefox

    - by costin
    Hi, I need to validate a date in a web forms application. For this I use a CompareValidator with Operator="DataTypeCheck" Type="Date" The problem is that this Validator doesn't work properly on Firefox with 2 digit years. ( javascript error: m[2] is undefined) With a 4 digits year it's working properly. This problem is described also here: https://connect.microsoft.com/VisualStudio/feedback/details/355573/comparevalidator-client-side-bug-two-digit-year-in-mozilla-based-browsers-throws-js-exception Does anyone know a nice workaround for this? Thanks

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  • What is the way to go to fake my database layer in a unit test?

    - by Michel
    Hi, i have a question about unit testing. say i have a controller with one create method which puts a new customer in the database: //code a bit shortened public actionresult Create(Formcollection formcollection){ client c = nwe client(); c.Name = formcollection["name"]; ClientService.Save(c); { Clientservice would call a datalayer object and save it in the database. What i do now is create a database testscript and set my database in a know condition before testing. So when i test this method in the unit test, i know that there must be one more client in the database, and what it's name is. In short: ClientController cc = new ClientController(); cc.Create(new FormCollection (){name="John"}); //i know i had 10 clients before assert.areEqual(11, ClientService.GetNumberOfClients()); //the last inserted one is John assert.areEqual("John", ClientService.GetAllClients()[10].Name); So i've read that unit testing should not be hitting the database, i've setup an IOC for the database classes, but then what? I can create a fake database class, and make it do nothing. But then ofcourse my assertions will not work because if i say GetNumberOfClients() it will alwasy return X because it has no interaction with the fake database class used in the Create Method. I can also create a List of Clients in the fake database class, but as there will be two different instance created (one in the controller action and one in the unit test), they will have no interaction. What is the way to make this unit test work without a database?

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  • host MVC app inside a website

    - by Nishant
    I have a website (not a web application- in visual studio you get two options-create a website/project) running on IIS 6.0. Now I want to develop few features in MVC architecture. So I created one MVC application in visual studio and everything is working fine on localhost as a separate application. Now I want to host this MVC app also inside the website I have already deployed. I created a virtual directory(MVCDir) inside the default website in IIS 6.0. The global.asax file which was in root folder I added the routing function- Shared Sub RegisterRoutes(ByVal routes As RouteCollection) routes.Ignore("{resource}.axd/{*pathInfo}") routes.Ignore("{resource}.aspx/{*pathInfo}") routes.MapPageRoute("Default4", "{controller}/{action}/{id}", "~/MVCDir", False, New RouteValueDictionary(New With {.controller = "Home", .action = "Index", .id = Mvc.UrlParameter.Optional})) End Sub * NOTE- If I write routes.ignoreRoute instead of routes,ignore it says- IgnoreRoute is not a member of System.Web.RoutingCollection* I called this routing function inside application_start function now when I run domain.com/home/index How to solve this problem? it says resource not found

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  • What's the best way to validate EntityFramwork 4.0 classes?

    - by lsb
    Hi! I've done a fair amount of searching but I've yet to find an easy way to validate EntityFramework 4.0 entities passed accross the wire via WCF Data Services. Basically, I want to do something on the client like: Proxy.MyEntities entities = new Proxy.MyEntities( new Uri("http://localhost:2679/Service.svc")); Proxy.Vendor vendor = new Proxy.Vendor(); vendor.Code = "ABC/XYZ"; vendor.Status = "ACTIVE"; // I'd like to do something like the following: vendor.Validate(); entities.AddToVendors(vendor); entities.SaveChanges(); Any help in this regard would be greatly appreciated!

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  • Onclick not firing

    - by user320588
    I have a set of buttons on my master page (I have attached the code below) but no onclick event is being raised. I pulled the final page source and no onclick event was present. As you can see I tried a few different approaches to solve the problem. I am looking for a normal postback to the server but I am getting nothing when I click any of these buttons. What am I not doing? --Master --Master Code Behind Protected Sub Button_Command(ByVal sender As Object, ByVal e As CommandEventArgs) Handles btnCancel.Command, btnClear.Command Session("ButtonClicked") = e.CommandArgument End Sub Protected Sub Button_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnSave.Click, btnSubmit.Click Session("ButtonClicked") = CType(sender, Button).CommandArgument End Sub --Page Source

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