Databases
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PObinding a dropdownlist to a database
 

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    <p>I want to bind a dropdownlist to a database. I did the following coding but it isn't working.</p> <pre><code>using System; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; using System.Data.Odbc; using System.Data.SqlClient; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { rebind(); } } public void rebind() { try { OdbcConnection myConn = new OdbcConnection(ConfigurationManager.ConnectionStrings["myconn"].ConnectionString); string sql = "select casename,casecode from casetype"; myConn.Open(); OdbcCommand cmd = new OdbcCommand(sql, myConn); OdbcDataReader MyReader = cmd.ExecuteReader(); { DropDownList3.DataSource= sql; DropDownList3.DataTextField = "casename"; DropDownList3.DataValueField = "casetype"; DropDownList3.DataBind(); } } catch (Exception ex) { Response.Write(ex.StackTrace); } } } </code></pre> <p>I am getting the error as</p> <pre><code>at _Default.rebind() in c:\Documents and Settings\a\My Documents\Visual Studio 2008\WebSites\toolbar1\Default.aspx.cs:line 32 </code></pre> <p>Please help me to solve my problem and bind the dropdownlist to a datasource.I want my dropdownlist to display text from a database column and use the value field for some other purpose later on in code. I am getting the page displayed when i run the project but not able to get the data in dropdownlist</p>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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