duplicate items in dropdownlist on an edit page - asp.net

Question

I have a page to edit user profile.On page load,the data loads on to the page for the given userid.The problem is that the dropdownlists have a duplicate item which is selected.as shown below :
Here is my code:
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
//btnReset.Visible = false;
BindDisabilityDropDown();
BindGenderDropDown();
BindStateDropDown();
ExtractUserData();
}
}
protected void BindGenderDropDown()
{
string CS = ConfigurationManager.ConnectionStrings["ss"].ConnectionString;
using (SqlConnection con = new SqlConnection(CS))
{
con.Open();
SqlCommand cmd = new SqlCommand("select * from tblGenders", con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
ddlGender.DataSource = ds;
ddlGender.DataTextField = "GenderName";
ddlGender.DataValueField = "GenderId";
ddlGender.DataBind();
}
ddlGender.Items.Insert(0, new ListItem("---Select---", "0"));
ddlGender.SelectedIndex = 0;
}
private void ExtractUserData()
{
string CS = ConfigurationManager.ConnectionStrings["ss"].ConnectionString;
using (SqlConnection con = new SqlConnection(CS))
{
con.Open();
SqlCommand cmd = new SqlCommand("Select * from tblAllUsers where UserId='PL00012'", con);
SqlDataReader rdr = cmd.ExecuteReader();
while (rdr.Read())
{
string path = rdr["ProfilePicPath"].ToString();
hfImagePath.Value = Path.GetFileName(path);
lblUserId.Text = rdr["UserId"].ToString();
txtFName.Text = rdr["FirstName"].ToString();
txtLName.Text = rdr["LastName"].ToString();
txtEmailAddress.Text = rdr["EmailAdd"].ToString();
txtContactNumber.Text = rdr["MobileNo"].ToString();
txtdob.Value = rdr["DOB"].ToString();
txtStreetAddress.Text = rdr["StreetAddress"].ToString();
txtZipCode.Text = rdr["ZipCode"].ToString();
ddlGender.SelectedItem.Text = rdr["Gender"].ToString();
ddlDisabled.SelectedItem.Text = rdr["Disabled"].ToString();
ddlState.SelectedItem.Text = rdr["State"].ToString();
ddlCity.SelectedItem.Text = rdr["City"].ToString();
}
}
What i am guessing is,the dropdownlist is loaded by BindGenderDropDown() and then the SelectedItem is added once again by ExtractData().So how can i just avoid the unwanted addition?

Answer 1

You can do the following while selecting DropdownList SelectedItem in ExtractUserData() method:
ddlGender.SelectedIndex = ddlGender.Items.IndexOf(ddlGender.Items.FindByText(rdr["Gender"].ToString()));
Your code ddlGender.SelectedItem.Text = rdr["Gender"].ToString(); is displaying ---Select--- with rdr["Gender"].ToString(). This code doesn't change the Items but only chooses the item.

Answer 2

it may help you.
if (ddlGender.Items.Contains(ddlGender.Items.FindByText(rdr["Gender"].ToString())))
{
ddlGender.Items.FindByText(rdr["Gender"].ToString()).Selected = true;
}
In your case, ddlGender.SelectedItem.Text = rdr["Gender"].ToString(); is changing text of selected index and so it is changing --Select-- to Your Selected Value.
and for selection of Item in Dropdown, I'd suggest to use below code.
ddlGender.SelectedValue = rdr["GenderId"].ToString();