Here is how you can get the selected rows (in the dialogue form's OK button click event):
    private void btnOk_Click(object sender, EventArgs e)
    {
      // filter the datasource
      DataSelector1.FilterData();
      // get the datasource
      DataSourceBase data = Report.GetDataSource("Employees");
      data.Init();
     Â
      // enumerate rows
      string s = "";
      while (data.HasMoreRows)
      {
        s += data["FirstName"].ToString() + "\r\n";
        data.Next();
      }
     Â
      // show the selected rows
      MessageBox.Show(s);
    }
Comments
CheckedListBoxControl is a wrapper over standard winforms CheckedListBox. DataSelector is used for data filtering, you can read about it in the user's manual:
http://fast-report.com/documentation/UserM...rhowitworks.htm
thx anyway...but i use it not onli for auto filter...I use it to pass parameter to the sql function...any idea for that?