problem with dropdownlist

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i have 2 dropdownlist.one for country and another for city.if i select country india from 1st dropdown and pune from another dropdown it works.there is select option in dropdown if 2nd time i select select option then it gives error:cannot have multiple items selected in a dropdownlist..bt if i select another city then it works..plz help me?

Posted 13-Dec-12 18:18pm

Member 9027346

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Sampath Kumar Sathiya 14-Dec-12 0:23am

Could please provide the code which you used to populate the second (state) drop down list?

Member 9027346 14-Dec-12 0:28am

there is no code for second dropdownlist..i only displaying and selecting country and city.

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Vani Kulkarni · Answer 1 · 2012-12-13T18:32:00

Solution 1

Hello,

C#

dropdownlist1.Items.Clear()

is the solution.
Have a look at following links:
http://geekswithblogs.net/shahed/archive/2008/08/23/124652.aspx[^]
http://forums.asp.net/t/1774603.aspx/1[^]

Posted 13-Dec-12 18:32pm

Vani Kulkarni

Comments

__TR__ 14-Dec-12 0:34am

My 5!
The OP can also try dropDownList.ClearSelection();

Vani Kulkarni 14-Dec-12 0:41am

Thanks! :) Yes even clearselection can be used.

manpreetpawar · Answer 2 · 2012-12-13T18:54:00

C#

private void BindCountry()
   {
       ddlCountry.DataSource = CountryList();// give datasource what ever you want
       ddlCountry.DataTextField = "CountryName";
       ddlCountry.DataValueField = "CountryId";
       ddlCountry.DataBind();
       ddlCountry.Items.Insert(0, new ListItem("Select", "0"));
       ddlCity.Items.Insert(0, new ListItem("Select", "0"));
   }
   private void BindCity()
   {
       ddlCity.Items.Clear();
       int cityid = Convert.ToInt32(ddlCountry.SelectedValue);
       ddlCity.DataSource = CityList(cityid);// give datasource what ever you want
       ddlCity.DataTextField = "CityName";
       ddlCity.DataValueField = "CityId";
       ddlCity.DataBind();
       ddlCity.Items.Insert(0, new ListItem("Select", "0"));
   }
   protected void ddlCountry_SelectedIndexChanged(object sender, EventArgs e)
   {
       BindCity();
   }