ASP Net MVC How to pass data from view to controller

Question

I am completely new to ASP Net and I am sure this is a very basic question  I have a View in which there is a link to generate report but to be able to generate report I must ask the user to provide a suitable text name as well   So far I have been able to pass data from server to view using Models passed from my controller to view  but I am not sure how to Pass data from view to my controller   I just need to pass a string from view to controller in this case   Any advice with example will be appreciated   UPDATE  I understand I have to post the data back to server but how does that realize in the form of razorhtml code and controller

User · Answer

lt form action  myController myAction  method  POST  gt    lt input type  text  name  valueINeed    gt    lt input type  submit  value  View Report    gt   lt  form gt     controller    HttpPost  public ActionResult myAction string valueINeed

User · Answer

In case you don t want need to post    Html ActionLink  link caption    actionName   new   Model Page        view s controller  Html ActionLink  link caption    actionName    controllerName   new   reportID   1    null     HttpGet  public ActionResult actionName int reportID      Note that the reportID in the new    part matches reportID in the action parameters  you can add any number of parameters this way  but any more than 2 or 3  some will argue always  you should be passing a model via a POST  as per other answer   Edit  Added null for correct overload as pointed out in comments   There s a number of overloads and if you specify both action controller  then you need both routeValues and htmlAttributes   Without the controller  just caption action   only routeValues are needed but may be best practice to always specify both

User · Answer

You can do it with ViewModels like how you passed data from your controller to view   Assume you have a viewmodel like this  public class ReportViewModel      public string Name   set get       and in your GET Action   public ActionResult Report       return View new ReportViewModel         and your view must be strongly typed to ReportViewModel   model ReportViewModel  using Html BeginForm        Report NAme    Html TextBoxFor s  gt s Name     lt input type  submit  value  Generate report    gt      and in your HttpPost action method in your controller   HttpPost  public ActionResult Report ReportViewModel model        check for model Name property value now     to do   Return something     OR Simply  you can do this without the POCO classes  Viewmodels    using Html BeginForm          lt input type  text  name  reportName    gt      lt input type  submit    gt      and in your HttpPost action  use a parameter with same name as the textbox name    HttpPost  public ActionResult Report string reportName        check for reportName parameter value now     to do   Return something     EDIT   As per the comment  If you want to post to another controller  you may use this overload of the BeginForm method    using Html BeginForm  Report   SomeOtherControllerName          lt input type  text  name  reportName    gt      lt input type  submit    gt      Passing data from action method to view    You can use the same view model  simply set the property values in your GET action method  public ActionResult Report       var vm   new ReportViewModel      vm Name  SuperManReport     return View vm       and in your view   model ReportViewModel  lt h2 gt  Model Name lt  h2 gt   lt p gt Can have input field with value set in action method lt  p gt   using Html BeginForm         Html TextBoxFor s  gt s Name     lt input type  submit    gt

[asp.net] ASP.Net MVC How to pass data from view to controller

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