dropdownlist-how to check the value from in list in the table
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Thread: dropdownlist-how to check the value from in list in the table

  1. #1
    Join Date
    Feb 2012
    Posts
    4

    dropdownlist-how to check the value from in list in the table

    error in the below code-connot imlicitly convert type string to 'System.Web.UI.WebControls.ListItem'

    Code:
    protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
        {
            SqlConnection cn=myClass.DBCon();
            SqlCommand cmd=new SqlCommand("select CourseName from Course",cn);
            SqlDataReader dr=cmd.ExecuteReader();
            while (dr.Read())
            {
                if (DropDownList1.SelectedItem = dr["CourseName"].ToString())
                {
    //code
    
                }
            }
        }
    Last edited by GremlinSA; February 15th, 2012 at 03:34 AM. Reason: added code tags.

  2. #2
    Join Date
    Jun 2005
    Location
    JHB South Africa
    Posts
    3,772

    Re: dropdownlist-how to check the value from in list in the table

    The problem here is that DropDownList1.SelectedItem is of Type ListItem and does not immediately return the selected Value..

    you have several options here ... If your looking for the DDL's selected text you can use :..
    DropDownList1.SelectedItem.Text

    Or if your looking for the Value behind you can use either:.
    DropDownList1.SelectedItem.Value
    DropDownList1.SelectedValue


    NOTE : All the above returned types are string....
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