Autopost en la lista desplegable de mvc

Requerimiento: Tengo una lista desplegable en mi página de vista, que muestra una lista de proveedores. Cuando se selecciona un proveedor del menú desplegable, la página muestra los detalles del proveedor seleccionado. De manera predeterminada, necesito mantener seleccionado al primer vendedor y mostrar sus detalles. Podría lograr esto usando el siguiente código.Autopost en la lista desplegable de mvc

Problema: No sé cómo lograr autopostback = true en MVC. Necesito mostrar los detalles del proveedor seleccionado en la selección del proveedor en la lista desplegable.

Estoy usando ASP.net 4.0, MVC3, Entity Framework 4.0. Aquí está mi código:

[AcceptVerbs("POST")] 
    public ActionResult SearchResult(FormCollection collection) 
    { 
     try 
     { 
      string vendorName = collection["searchItem"].ToString(); 

      vendorName = vendorName.Trim(); 
      List<Vendor> vendorList = Queries.compiledVendorQuery(dbContext, vendorName).ToList<Vendor>(); 

      if(vendorList.Count() == 0) 
       return View("EmptySearch"); 

      List<SelectListItem> vendorSelectList = new List<SelectListItem>(); 
      foreach (Vendor vendor in vendorList) 
      { 
       vendorSelectList.Add(new SelectListItem 
       { 
        Text = vendor.vendorName.ToString(), 
        Value = vendor.vendorId.ToString() 
       }); 
      } 

      Vendor selectedVendor = vendorList[0]; 

      VendorDetails vendorDeatils = Queries.compiledVendorDetailsQuery(dbContext, selectedVendor.vendorId.ToString()).FirstOrDefault(); 

      VendorResult vendorResult = new VendorResult(); 

      vendorResult.vendorSelectList = vendorSelectList; 
      vendorResult.vendorDetails = vendorDeatils; 

      return View(vendorResult); 
     } 
     catch (Exception e) 
     { 
      return View("EmptySearch"); 
     } 
    } 


public class VendorResult 
{ 
    public List<SelectListItem> vendorSelectList { get; set; } 
    public VendorDetails vendorDetails {get; set;} 
} 


public class VendorDetails 
{ 
    public string vendorId { get; set; } 
    public string vendorName { get; set; } 
    public string address1 { get; set; } 
    public string address2 { get; set; } 
    public string address3 { get; set; } 
    public string city { get; set; } 
    public string state { get; set; } 
    public string zip { get; set; } 
    public decimal noteIndex { get; set; } 
    public string comment1 { get; set; } 
    public string comment2 { get; set; } 
    public string phone { get; set; } 
    public string interPhone { get; set; } 
    public string fax { get; set; } 
    public string interFax { get; set; } 
}

Editar: Código que define mi lista desplegable.

@model KeleTools.Models.VendorResult 

@{ 
    ViewBag.Title = "Vendor LookUp Tool"; 
    Layout = "~/Views/Shared/_ResultLayout.cshtml"; 
} 

<h2>Vendor Details</h2> 

<p> Select a vendor to display details:</p> 

@Html.DropDownList("VendorList", @Model.vendorSelectList, null, new {target="_self"}) 

@using (Html.BeginForm("SearchResult", "VendorLookUp")) 
{ 
    <div class="margin-10-top" > 
    <table id= "OrderDetail" class="OrderDetail"> 
    <tr class="OrderDetail"> 
     <td class="PropertyName">Vendor Id:</td> 
     <td class="PropertyValue">@Model.vendorDetails.vendorId.ToString().Trim()</td> 
    </tr> 
    <tr class="OrderDetail"> 
     <td class="PropertyName">Vendor Name:</td> 
     <td class="PropertyValue">@Model.vendorDetails.vendorName.ToString().Trim()</td> 
    </tr> 
    @{ 
          string address = @Model.vendorDetails.address1.ToString().Trim(); 
          address = address + "\n"; 
          address = address + @Model.vendorDetails.address2.ToString().Trim(); 
          address = address + "\n"; 
          address = address + @Model.vendorDetails.address3.ToString().Trim(); 

     <tr class="OrderDetail"> 
      <td class="PropertyName">Address</td> 
      <td class="PropertyValue">@address.TrimEnd()</td> 
     </tr> 
    } 
    @{ 
           string city = @Model.vendorDetails.city.ToString().TrimEnd(); 
           city = city + ", "; 
           city = city + @Model.vendorDetails.state.ToString().Trim(); 
           city = city + " "; 
           city = city + @Model.vendorDetails.zip.ToString().Trim(); 

     <tr class="OrderDetail"> 
      <td class="PropertyName">&nbsp;</td> 
      <td class="PropertyValue">@city</td> 
     </tr> 

           string phoneNumber = null; 
           if (!string.IsNullOrEmpty(@Model.vendorDetails.phone.ToString().Trim())) 
           { 
            phoneNumber = @Model.vendorDetails.phone.ToString().TrimEnd().Substring(0, 3); 
            phoneNumber = phoneNumber + "-"; 
            phoneNumber = phoneNumber + @Model.vendorDetails.phone.ToString().TrimEnd().Substring(3, 3); 
            phoneNumber = phoneNumber + "-"; 
            phoneNumber = phoneNumber + @Model.vendorDetails.phone.ToString().TrimEnd().Substring(6, 4); 
            if (@Model.vendorDetails.phone.ToString().Trim().Length > 10) 
            { 
             phoneNumber = phoneNumber + " Ext: "; 
             phoneNumber = phoneNumber + @Model.vendorDetails.phone.ToString().TrimEnd().Substring(10); 
            } 
           } 

     <tr class="OrderDetail"> 
      <td class="PropertyName">Phone Number:</td> 
      <td class="PropertyValue">@phoneNumber</td> 
     </tr> 
           phoneNumber = null; 
           if (!string.IsNullOrEmpty(@Model.vendorDetails.fax.ToString().Trim())) 
           { 
            phoneNumber = @Model.vendorDetails.fax.ToString().TrimEnd().Substring(0, 3); 
            phoneNumber = phoneNumber + "-"; 
            phoneNumber = phoneNumber + @Model.vendorDetails.fax.ToString().TrimEnd().Substring(3, 3); 
            phoneNumber = phoneNumber + "-"; 
            phoneNumber = phoneNumber + @Model.vendorDetails.fax.ToString().TrimEnd().Substring(6, 4); 
            if (@Model.vendorDetails.fax.ToString().Trim().Length > 10) 
            { 
             phoneNumber = phoneNumber + " Ext: "; 
             phoneNumber = phoneNumber + @Model.vendorDetails.fax.ToString().TrimEnd().Substring(10); 
            } 
           } 

     <tr class="OrderDetail"> 
      <td class="PropertyName">Fax:</td> 
      <td class="PropertyValue">@phoneNumber</td> 
     </tr> 
           phoneNumber = null; 
           if (!string.IsNullOrEmpty(@Model.vendorDetails.interPhone.ToString().Trim())) 
           { 

            phoneNumber = @Model.vendorDetails.interPhone.ToString().TrimEnd().Substring(0, 3); 
            phoneNumber = phoneNumber + "-"; 
            phoneNumber = phoneNumber + @Model.vendorDetails.interPhone.ToString().TrimEnd().Substring(3, 3); 
            phoneNumber = phoneNumber + "-"; 
            phoneNumber = phoneNumber + @Model.vendorDetails.interPhone.ToString().TrimEnd().Substring(6, 4); 
            if (@Model.vendorDetails.interPhone.ToString().Trim().Length > 10) 
            { 
             phoneNumber = phoneNumber + " Ext: "; 
             phoneNumber = phoneNumber + @Model.vendorDetails.interPhone.ToString().TrimEnd().Substring(10); 
            } 
           } 

     <tr class="OrderDetail"> 
      <td class="PropertyName">International Phone:</td> 
      <td class="PropertyValue">@phoneNumber</td> 
     </tr> 
           phoneNumber = null; 
           if (!string.IsNullOrEmpty(@Model.vendorDetails.interFax.ToString().Trim())) 
           { 
            phoneNumber = @Model.vendorDetails.interFax.ToString().TrimEnd().Substring(0, 3); 
            phoneNumber = phoneNumber + "-"; 
            phoneNumber = phoneNumber + @Model.vendorDetails.interFax.ToString().TrimEnd().Substring(3, 3); 
            phoneNumber = phoneNumber + "-"; 
            phoneNumber = phoneNumber + @Model.vendorDetails.interFax.ToString().TrimEnd().Substring(6, 4); 
            if (@Model.vendorDetails.interFax.ToString().Trim().Length > 10) 
            { 
             phoneNumber = phoneNumber + " Ext: "; 
             phoneNumber = phoneNumber + @Model.vendorDetails.interFax.ToString().TrimEnd().Substring(10); 
            } 
           } 

     <tr class="OrderDetail"> 
      <td class="PropertyName">International Fax:</td> 
      <td class="PropertyValue">@phoneNumber</td> 
     </tr> 
     } 
     <tr class="OrderDetail"> 
     <td class="PropertyName">Comment 1:</td> 
     <td class="PropertyValue">@Model.vendorDetails.comment1.ToString().TrimEnd() < /td> 
    < /tr> 
    <tr class="OrderDetail"> 
     <td class="PropertyName">Comment 2:</td> 
     <td class="PropertyValue">@Model.vendorDetails.comment2.ToString().Trim()</td> 
    < /tr> 

< /table> 
< /div> 
}

Fuente

2012-01-04 14578446

Relacionados : [¿Cómo se hace la función de autopostback de formularios web en asp.net mvc?] (Http://stackoverflow.com/questions/7584515/how-do-you-do-autopostback-feature-of-webforms-in-asp- net-mvc/7584657 # 7584657) – vcsjones

Como un aparte, movería todo el 'i f() {} 'lógica en el modelo de vista como una propiedad. –

No hay AutoPostback=true en MVC. Tendrá que conectar esto usted mismo. Se puede hacer algo como esto, usando jQuery:

$("#idOfMyDropDownList").change(function() { 
    // Handle the change event, such as fire off an ajax request. 
});

Fuente

2012-01-04 15:18:36

lo siento chicos, soy un poco nuevo en jquery, ajax, mvc. Algunos detalles más serán aplicados. – 14578446

Suponiendo que usted tendrá que hacer una base de datos de resultados para obtener los resultados, dentro de la función jQuery James D'Angelo'a usted entonces hacer un .post del proveedor método de detalles en su controlador para recuperar su objeto y luego completar los detalles para el proveedor seleccionado a la página. Usted tendrá que añadir un método para el controlador que devuelve un objeto JSON

$.post("/{Controller}/{Method}", { VendorId: selectVal }, function(response, status) { 
    var vendorDetails = eval("(" + response + ")"); 
    //additional code to populate the fields

Fuente

2012-01-04 16:21:31 Brian

Cambio en el menú desplegable de instancias a esta

@Html.DropDownList("VendorList", @Model.vendorSelectList, new { onchange = "$(this).parent('form:first').submit();" }})

Fuente

2012-03-09 16:50:42 jgerstle

+1 para proporcionar el código para realizar una devolución de datos real. Sin embargo, prefiero usar '$ (this) .closest (" form "). Submit();' para asegurarme de que se publique el formulario dentro del cual reside el elemento seleccionado. –

Puede hacerlo de esta manera:

@Html.DropDownList("VendorList", @Model.vendorSelectList, "--Select Vendor--", new { @onchange = "this.form.submit();" })

Fuente

2013-12-13 12:20:20

Autopost en la lista desplegable de mvc

Respuesta

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