How to refresh dropdown list in javascript

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i bind dropdownliat in c# and i delete the item database using ajax. delete is successfull but list item diplay in dropdown list i use remove property in below the delete function but thats not properly remove any one please help me

What I have tried:

var x = document.getElementById("loginid");
x.remove(x.selectedIndex);
alert(x.selectedIndex);
this is my code

Posted 29-Mar-16 1:11am

Nethaji chennai

Updated 29-Mar-16 2:39am

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Comments

Karthik_Mahalingam 29-Mar-16 7:26am

your code looks fine.
post your related code on this. need to examine..

F-ES Sitecore 29-Mar-16 7:31am

Do you see the right value in the alert box?

Nethaji chennai 29-Mar-16 7:37am

alert is come 0

Nethaji chennai 29-Mar-16 7:32am

public void bind()
{

string connString = ConfigurationManager.ConnectionStrings["autobuyConnectionString"].ToString();
// SqlCommand cmd = new SqlCommand("SELECT * FROM [dealer_userdetails]", new SqlConnection(ConfigurationManager.AppSettings["ConnString"]));
SqlConnection con = new SqlConnection(connString);
con.Open();
SqlCommand cmd = new SqlCommand();
cmd.Connection = con;
cmd.CommandText = "Dealer_user_drpdwn_UI1";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("@employee", 1);

DataSet ds = new DataSet();
SqlDataAdapter da = new SqlDataAdapter();
da.SelectCommand = cmd;
da.Fill(ds);
loginid.DataSource = ds;
loginid.DataTextField = "username".ToUpper(); ;
loginid.DataValueField = "Dealerid";

loginid.DataBind();
con.Close();

//SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["autobuyConnectionString"].ConnectionString);
//con.Open();
//SqlDataAdapter da = new SqlDataAdapter("Select * from dealer_userdetails order by username" , con);
//DataSet ds = new DataSet();
//DataTable dt = new DataTable();
//da.Fill(dt);
//da.Fill(ds);
//ListItem lst = new ListItem("SELECT DEALERNAME", "0");
//loginid.Items.Insert(loginid.Items.Count - 0, lst);
//if (ds.Tables[0].Rows.Count > 0)
//{
// loginid.Enabled = true;
// for (int i = 0; i < dt.Rows.Count; i++)
// {
// loginid.Enabled = true;
// loginid.Items.Add(dt.Rows[i][6].ToString().ToUpper());
// }
//}
//else
//{

// loginid.Enabled = false;
// // userName.Attributes.Add("disabled", "disabled");
//}

}

Nethaji chennai 29-Mar-16 7:37am

the value removed but another another value deleted previous deleted value come

Karthik_Mahalingam 29-Mar-16 7:53am

yes, if the existing value is deleted then the next value will be shown in the list box.

Nethaji chennai 29-Mar-16 7:55am

tell me any another way

Karthik_Mahalingam 29-Mar-16 8:00am

what is your exact issue ? still not clear with your problem..

Nethaji chennai 29-Mar-16 8:12am

i delete the dropdown list selected item.delete is successfull but item is displaying in dropdown list . after i page reload the item will removed . i want without page load

Karthik_Mahalingam 29-Mar-16 8:20am

post your aspx code.

Nethaji chennai 29-Mar-16 8:25am

Karthik_Mahalingam 29-Mar-16 8:50am

check my solution.

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Karthik_Mahalingam · Answer 1 · 2016-03-29T02:39:00

Solution 1

Try this

var x = document.getElementById("loginid");
var options= x.options;
var selectedIndex ;
var dea = x.value;
for (var i= 0; i < options.length; i++) {
    if (options[i].value == dea ) {
        selectedIndex = i;
        break;
    }
}
alert(selectedIndex);
x.remove(selectedIndex);

Posted 29-Mar-16 2:39am

Karthik_Mahalingam