title: How can Add items to Binded Datasource Combo Box?
body: <p>Hi I am new to C#. I have tried following way to add new item to my bound ComboBox but it won't give any result.
  Is it possible to add new item to bound ComboBox (Here Problem is <code>ID</code> is <code>Bigint</code> data type but I want to add <code>Select ID</code>)?
  If it  is possible, please provide piece of code</p>
  
  <pre><code>     try
          {
              objSqlExecute.OpenConnection();
              string strQuery = objQueryManager.GetEmployeeRecords();
                    //Add Extra Items to combo Box
              cmbEmployeeID.Items.Add("Select Id");
  
              DataTable dtEmployee = objSqlExecute.GetRecordExecution(strQuery);
                   // DataRow dtNew = dtEmployee.NewRow();
                  // dtNew["ID"] = "Select ID";
                  // dtNew["FName"] = "";
              //dtEmployee.Rows.InsertAt(dtNew, 0);
  
              cmbEmployeeID.DataSource = dtEmployee;
              cmbEmployeeID.DisplayMember = "ID";
              cmbEmployeeID.ValueMember = "FName";
          }
  </code></pre>