put the code inCODEFILE

		public DataSet PopulateDDList()
		{
			string sqlString ="select 
emp_name,emp_id from emp_current where 
emp_des='"+Des.PM+"'";/*ANY*/
			SqlDataAdapter ad = new 
SqlDataAdapter(sqlString,new log().db);
			DataSet ds = new DataSet();
			ad.Fill(ds);
			return ds;
		}

in the follwing aspx

<EditItemTemplate>
						
	<asp:DropDownList id=DropDownList1 runat="server"  
DataSource="<%#PopulateDDList()%>" DataTextField="emp_name" 
DataValueField="emp_id">
						
	</asp:DropDownList>
					
	</EditItemTemplate>

Actually this is work well