public static void SearchResult(DataGrid dg,string condition)        {            #region            string code = string.Empty;            DataView dv = dg.ItemsSource as DataView;            //if (condition.Substring(0, 1) != "0" || Regex.IsMatch(condition, @"^[+-]?\d*[.]?\d*$"))            {                for (int i = 0; i < dv.Table.Columns.Count; i++)                {                    if (dv.Table.Columns[i].DataType == typeof(System.Int32) || dv.Table.Columns[i].DataType == typeof(System.Byte))                    {                        if (condition.Substring(0, 1) != "0" && Regex.IsMatch(condition, @"^[+-]?\d*[.]?\d*$"))                        {                            code += (string)dv.Table.Columns[i].ToString() + " = " + condition + " or ";                        }                    }                    else if (dv.Table.Columns[i].DataType == typeof(System.DateTime))                    {                        try                        {                            code += (string)dv.Table.Columns[i].ToString() + " = ‘" + Convert.ToDateTime(condition) + "‘ or ";                        }                        catch (Exception)                        {                        }                    }                    else                    {                        code += (string)dv.Table.Columns[i].ToString() + " = ‘" + condition + "‘ or ";                    }                }            }            if (!string.IsNullOrEmpty(code))            {                code = code.Substring(0, code.Length - 3);                MessageBox.Show(code);                dv.RowFilter = code;                //dv.Sort = "ID ASC";                dg.ItemsSource = dv;            }            #endregion            //DataTable dv = (dg.ItemsSource as DataView).Table;            //DataTable dtNew = dv.Copy();            //dtNew.Clear();            //foreach (DataRow row in dv.Rows)            //{            //    for (int i = 0; i < dv.Columns.Count; i++)            //    {            //        if (row[i].ToString() == condition)            //        {            //            dtNew.Rows.Add(row.ItemArray);            //            break;            //        }            //    }            //}            //dg.ItemsSource = dtNew.DefaultView;        }