public static void BindComboBoxData(ComboBox ComboBoxname, DataTable dt, string valueid, string valuedisplay)
        {
            DataRow   DataRW;
            DataTable DataTB = new DataTable();

            ComboBoxname.DataSource = null;

            if (dt.Columns.Count > 0)
            {
                DataTB = dt;
            }
            else
            {
                DataTB.Columns.Add(valueid, typeof(string));
                DataTB.Columns.Add(valuedisplay, typeof(string));
            }

            DataRW = DataTB.NewRow();
            if (DataTB.Rows.Count != 0)
            {
                // string planstr = valueid + " " + valuedisplay;
                ComboBoxname.DataSource    = DataTB.DefaultView;
                ComboBoxname.DataSource    = DataTB.AsDataView();
                ComboBoxname.ValueMember   = valueid;
                ComboBoxname.DisplayMember = valuedisplay;
            }
            else
            {
                ComboBoxname.DataSource = null;
            }
        }
        public static void BindComboBoxDataForSelectAll(ComboBox ComboBoxname, DataTable dt, string valueid, string valuedisplay)
        {
            try
            {
                DataRow   DataRW;
                DataTable DataTB = new DataTable();
                ComboBoxname.DataSource = null;

                if (dt.Columns.Count > 0)
                {
                    DataTB = dt;
                }
                else
                {
                    DataTB.Columns.Add(valueid, typeof(string));
                    DataTB.Columns.Add(valuedisplay, typeof(string));
                }

                DataRW = DataTB.NewRow();
                if (DataTB.Rows.Count != 0)
                {
                    DataRW[valueid]      = "0";
                    DataRW[valuedisplay] = "-- Select All --";
                    DataTB.Rows.InsertAt(DataRW, 0);
                    // string planstr = valueid + " " + valuedisplay;
                    //  ComboBoxname.DataSource = DataTB.DefaultView;
                    ComboBoxname.DataSource    = DataTB.AsDataView();
                    ComboBoxname.ValueMember   = valueid;
                    ComboBoxname.DisplayMember = valuedisplay;
                }
                else
                {
                    ComboBoxname.DataSource = null;
                }
            }
            catch
            {
                throw;
            }
        }