Datatable分页通用方法

代码

   
     

    
      
    
       
    
      ///
    
       
    
      <summary>
    
      
 
    
      ///
    
       DataTable分页
 
    
      ///
    
       
    
      </summary>
    
      
 
    
      ///
    
       
    
      <param name="dt">
    
      DataTable
    
      </param>
    
      
 
    
      ///
    
       
    
      <param name="pageIndex">
    
      页索引,注意：从1开始
    
      </param>
    
      
 
    
      ///
    
       
    
      <param name="pageSize">
    
      每页大小
    
      </param>
    
      
 
    
      ///
    
       
    
      <returns></returns>
    
      

    
       
    
      public
    
       
    
      static
    
       DataTable GetPagedTable(DataTable dt, 
    
      int
    
       pageIndex, 
    
      int
    
       pageSize)
 {
 DataTable newdt 
    
      =
    
       dt.Clone();
 
    
      int
    
       rowbegin 
    
      =
    
       
    
      0
    
      ;
 
    
      int
    
       rowend 
    
      =
    
       
    
      0
    
      ;
 
    
      if
    
       (pageIndex 
    
      <=
    
       
    
      0
    
      )
 {
 rowbegin 
    
      =
    
       
    
      0
    
      ;
 rowend 
    
      =
    
       (pageIndex 
    
      +
    
       
    
      1
    
      ) 
    
      *
    
       pageSize;
 }
 
    
      else
    
      
 {
 rowbegin 
    
      =
    
       (pageIndex 
    
      -
    
       
    
      1
    
      ) 
    
      *
    
       pageSize;
 rowend 
    
      =
    
       pageIndex 
    
      *
    
       pageSize;
 }

 
    
      if
    
       (rowbegin 
    
      >=
    
       dt.Rows.Count)
 
    
      return
    
       newdt;
 
    
      if
    
       (rowend 
    
      >
    
       dt.Rows.Count)
 rowend 
    
      =
    
       dt.Rows.Count;

 
    
      for
    
       (
    
      int
    
       i 
    
      =
    
       rowbegin; i 
    
      <=
    
       rowend 
    
      -
    
       
    
      1
    
      ; i
    
      ++
    
      )
 {
 DataRow dr 
    
      =
    
       dt.Rows[i];
 newdt.ImportRow(dr);
 }
 
    
      return
    
       newdt;
 }
   
     

 

    string DumpHrefs(String inputString)
    {
        Regex r;
        Match m;
        string ret = string.Empty;
        r = new Regex("href\\s*=\\s*(?:\"(?<1>[^\"]*)\"|(?<1>\\S+))'>",
            RegexOptions.IgnoreCase | RegexOptions.Compiled);
        for (m = r.Match(inputString); m.Success; m = m.NextMatch())
        {
            ret= m.Groups[1].ToString();
        }
        return ret;
    }