C#针对DataTable进行分页方法

以下的分页方法是针对数据量不是非常大的数据进行的，是在内存中进行的分页操作。

/// <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>分好页的DataTable数据</returns>              第1页        每页10条
public  static  DataTable GetPagedTable(DataTable dt, int  PageIndex, int  PageSize)
{
    if  (PageIndex == 0){ return  dt;}
    DataTable newdt = dt.Copy();
    newdt.Clear();
    int  rowbegin = (PageIndex - 1) * PageSize;
    int  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 newdr = newdt.NewRow();
        DataRow dr = dt.Rows[i];
        foreach  (DataColumn column in  dt.Columns)
        {
            newdr[column.ColumnName] = dr[column.ColumnName];
        }
        newdt.Rows.Add(newdr);
    }
    return  newdt;
}

/// <summary>
/// 返回分页的页数
/// </summary>
/// <param name="count">总条数</param>
/// <param name="pageye">每页显示多少条</param>
/// <returns>如果 结尾为0：则返回1</returns>
public  static  int  PageCount( int  count, int  pageye)
{
    int  page = 0;
    int  sesepage = pageye;
    if  (count % sesepage == 0) { page = count / sesepage; }
    else  { page = (count / sesepage) + 1; }
    if  (page == 0) { page += 1; }
    return  page;
}