MVC ?????? ??? DropDownList ? ??

? ?????? MVC ???? ?? DropDownList?? ??? ?? ????? ???? ??? ????.

??: MVC ???? ??? DropDownList?? ??? ??? ????? ?????.

???? ??(?? ??):

?? ??? FormCollection:

[HttpPost]
public ActionResult ShowAllMobileDetails(MobileViewModel MV)
{           
   string strDDLValue = Request.Form["ddlVendor"].ToString(); // Using FormCollection
   return View(MV);
}

??:

public class MobileViewModel 
{
    public List<tbInsertMobile> MobileList;
    public SelectList Vendor { get; set; }
}

??(??):

<table>
    <tr>
        <td>Mobile Manufacturer</td>
        <td>@Html.DropDownList("ddlVendor", Model.Vendor, "Select Manufacturer")</td>
    </tr>
</table>

???:

?? 1: Request.Form ?? FormCollection ??(? ???):

?????? Request.Form? ?? ????? ?? ??? ??? ???? ?? ???? ???? ??? ????? ? ?????. ?? ??? ?? ? ??? ?????.

?? 2: ?? ???(??):

? ?? ??? MVC? ?? ??? ??? ???? ?? ???? ?? ??? ??? ???? ?????.

1. ?? ??: ??? ????? ??? ????? ????? MobileViewModel? ??? ?????.

public class MobileViewModel 
{
    // ... existing properties ...
    public string SelectedVendor { get; set; }
}

2. ? ????: Html.DropDownListFor? ???? DropDownList? ? SelectedVendor ??? ??????.

@Html.DropDownListFor(m => m.SelectedVendor, Model.Vendor, "Select Manufacturer")

3. ??? ???? ??: ?? ??? ?? MV.SelectedVendor ??? ???? ?????.

[HttpPost]
public ActionResult ShowAllMobileDetails(MobileViewModel MV)
{           
   string strDDLValue = MV.SelectedVendor;
   return View(MV);
}

?? 3: ?? ??? ?? ??(??):

??? ??? ???? ???? ?? ???? ??? ??? ?? jQuery? ?????.

1. ?? ??: ??? ????? ???? ??? ?? ??:

public class MobileViewModel 
{
    // ... existing properties ...
    public string SelectedVendor { get; set; }
    public string SelectedVendorText { get; set; }
}

2. jQuery ??: ?? jQuery? ???? ?? ???? DropDownList ??? ??? ??? ??? ??? ???????.

$(function () {
    $("#SelectedVendor").on("change", function () {
        $("#SelectedVendorText").val($(this).find(":selected").text());
    });
});

3. ?? ??? ?? ??:

@Html.DropDownListFor(m => m.SelectedVendor, Model.Vendor, "Select Manufacturer")
@Html.HiddenFor(m => m.SelectedVendorText)

?? ?????? MV.SelectedVendor(?)? MV.SelectedVendorText(???)? ?? ??? ? ????. ?? jQuery ?????? ???? ?? ?? ???. ??? ?? ??? ??????.

??? ?? ??? ?? ???? ?? ??? ???? ???? ?? ?? ???. ????? ?? ???(?? 2 ? 3)? ???? ?? ?? ???? ?? ?????.

? ??? MVC ?????? DropDownList? ??? ?? ???? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!