LINQ-Codes in .Net 2.0-Codes konvertieren

Question

Wie soll ich die folgenden LINQ-Codes in .Net 2.0-Codes konvertieren?

Ich kann es nicht auf .Net 3.5 aufgrund Unternehmenspolitik einige Einschränkungen aktualisieren.

GetErrorLog wird von ObjectDataSource verwendet werden.

Um den Code unten, verwende ich von System.Linq.Dynamic zu arbeiten http://weblogs.asp.net/scottgu/dynamic-linq-part-1-using-the-linq-dynamic-query-library

public class errorLog 
    { 
     public string fileName { get; set; } 
     public string filePath { get; set; } 
    } 

    public static IQueryable<errorLog> GetErrorLog(int startRowIndex, int maximumRows, string sortExpression, string logPath) 
    { 
     if (string.IsNullOrEmpty(sortExpression)) 
     { 
      sortExpression = "fileName"; 
     } 
     string[] filePaths = Directory.GetFiles(logPath); 
     List<errorLog> files = new List<errorLog>(); 

     foreach (string filePath in filePaths) 
     { 
      files.Add(new errorLog { fileName = Path.GetFileName(filePath), filePath = filePath }); 
     } 

     return files.AsQueryable().OrderBy(sortExpression).Skip(startRowIndex).Take(maximumRows); 
    } 

Answer 1

Hier ist, wie ich es tun, sind besser Antworten willkommen.

public static DataTable GetErrorLog(int startRowIndex, int maximumRows, string sortExpression, string logPath) 
{ 
    if (string.IsNullOrEmpty(sortExpression)) 
    { 
     sortExpression = "fileName DESC"; 
    } 

    DataTable errorLog = GetErrorLogDataTable(); 

    string[] filePaths = Directory.GetFiles(logPath); 
    foreach (string filePath in filePaths) 
    { 
     DataRow row = errorLog.NewRow(); 
     row["fileName"] = Path.GetFileName(filePath); 
     row["filePath"] = filePath; 
     errorLog.Rows.Add(row); 
    } 

    DataView dataView = new DataView(errorLog); 
    dataView.Sort = sortExpression; 
    errorLog = dataView.ToTable(); 
    DataTable pagedErrorLog = errorLog.Clone(); 

    for (int i = startRowIndex; i < startRowIndex + maximumRows; i++) 
    { 
     if (i >= errorLog.Rows.Count) 
     { 
      break; 
     } 
     pagedErrorLog.ImportRow(errorLog.Rows[i]); 
    } 

    if (pagedErrorLog.Rows.Count <= 0) 
    { 
     return errorLog; 
    } 
    else 
    { 
     return pagedErrorLog; 
    } 
} 

private static DataTable GetErrorLogDataTable() 
{ 
    DataTable dataTable = new DataTable(); 
    dataTable.Columns.Add("fileName"); 
    dataTable.Columns.Add("filePath"); 
    return dataTable; 
}