asp.net mvc 3 dropdownlist binding from DB and selected item from same dropdownlist

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Hi All,

CAn you please help me on this.

i have created asp.net mvc3 application i want binding the values from DB to dropdownlist and need to selected item pass to respective controller how i can do please help me and also error messagebox need to create please help mke on this.

Advanced Thankxs

Regards,

Narasimha

Posted 8-Jun-12 3:03am

Narasima

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Karthik. A · Answer 1 · 2012-06-08T04:06:00

Solution 1

The link below is all you need! Start to finish. Not sure what you mean by the last part of your question (error messagebox).

http://www.asp.net/mvc/tutorials/javascript/working-with-the-dropdownlist-box-and-jquery/using-the-dropdownlist-helper-with-aspnet-mvc[^]

Hope this helps!

Posted 8-Jun-12 4:06am

Karthik. A

Vikram Bhatt · Answer 2 · 2012-06-27T08:32:00

Solution 2

use jquery ajax and return string - if string is blank no error else show alert with message returned from controller.
http://api.jquery.com/jQuery.ajax/[^]

Posted 27-Jun-12 8:32am

Vikram Bhatt

Vivek.netprofessional · Answer 3 · 2013-08-18T19:46:00

Check this one

View Part :-

JavaScript

$("#istateid").change(function () {
 $.ajax({
   type: "POST",
   url: "/PostAd/getCityJson",
   data: { stateId: $("#istateid > option:selected").attr("value") },
   success: function (data) {
       var items = [];
       items.push("&lt;option>--Choose Your Area--&lt;/option>");
       $.each(data, function () {
           items.push("&lt;option value=" + this.Value + ">" + this.Text + "&lt;/option>");
       });
       $("#icityid").html(items.join(' '));
   }
 })
});

Controller Part -

C#

[HttpPost]
public JsonResult getCityJson(string stateId, string selectCityId=null)
{
    return Json(getCity(stateId, selectCityId));
}
public SelectList getCity(string stateId, string selectCityId = null)
{
    IEnumerable&lt;SelectListItem> cityList = new List&lt;SelectListItem>();
    if (!string.IsNullOrEmpty(stateId))
    {
        int _stateId = Convert.ToInt32(stateId);
        cityList = (from m in _db.mstrcities where m.bstatus == true && m.istateid == _stateId select m).AsEnumerable().Select(m => new SelectListItem() { Text = m.vcity, Value = m.icityid.ToString() });
    }
    return new SelectList(cityList, "Value", "Text", selectCityId);

}

View more about it how to bind through viewbag / model / jquery, more example -

binding dropdownlist in .net mvc razor by viewbag, model and jquery selected index change - three ways