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  • C# WPF Datagrid的筛选

    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)//全匹配查询//row[i].ToString().Contains(condition)//模糊查询
                 // { 
                        
    // dtNew.Rows.Add(row.ItemArray);
                        // break;
                
    // }
              // }
            //}
            
    //dg.ItemsSource = dtNew.DefaultView;
         }
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  • 原文地址:https://www.cnblogs.com/Events/p/3937443.html
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