Question

This is my view

<form method="post" action="/LoadCustomerAndDisplay/Search">
<fieldset>
    <legend>Customer Book</legend>
    <%= Html.Label("Name") %>

    <%: Html.TextBox("Name") %>
    <br />
    <br />
    <div>
        <input type="submit" value="Sign" />
    </div>
</fieldset>
</form>

This is my controller…

 public ActionResult Search() 
    {
        CustomerModels objCustomer = new CustomerModels();
        var dataval = objCustomer.getData();
        return View(dataval);

}

How can i get the value of Name textbox in the controller and pass it to the the getData like this….

 var dataval = objCustomer.getData(ViewData['Name']);

this i put…showing error on fname….missing adding directive….what’s the issue now…

 <% Html.BeginForm("Search", "LoadCustomerAndDisplay");%>
    <%: Html.TextBoxFor(m => m.fname) %>
    <p>
        <button type="submit">
            Save</button></p>
    <% Html.EndForm();%>

Answer 1

Use strongly typed view. In your GET action method, pass an object of your ViewModel to the view and use the HTML helper methods to create the input elements. When you submit the form, due to MVC model binding, you will get the values as the property values of the ViewModel in the POST action method.

Your GET action can stay same

public ActionResult Search() 
{
    CustomerModels objCustomer = new CustomerModels();
    var dataval = objCustomer.getData(); 
    // Assuming this method returns the CustomerViewModel object 
    //and we will pass that to the view.

    return View(dataval);
}

so your View will be like

@model CustomerViewModel
@using (Html.BeginForm())
{
  @Html.LabelFor(x=>x.Name)
  @Html.TextBoxFor(x=>x.Name)
  <input type="submit" value="Save" /> 
}

And have a POST action method to handle this

[HttpPost]
public ActionResult Search(CustomerViewModel model)
{
  if(ModelState.IsValid)
  {
    string name= model.Name;

   //  you may save and redirect here (PRG pattern)
  }
  return View(model);

}

Assuming your objCustomer.getData() method in your GET Action method returns an object of CustomerViewModel which has a Name property like this

public class CustomerViewModel
{
  public string Name { set;get;}
  //other properties as needed
}