C# DataTable分页处理

原文链接：https://www.cnblogs.com/hostmain/p/6221761.html

public DataTable GetPagedTable(DataTable dt, int PageIndex, int PageSize)//PageIndex表示第几页，PageSize表示每页的记录数
{
    if (PageIndex == 0)
        return dt;//0页代表每页数据，直接返回

    DataTable newdt = dt.Copy();
    newdt.Clear();//copy dt的框架

    int rowbegin = (PageIndex - 1) * PageSize;
    int rowend = PageIndex * PageSize;

    if (rowbegin >= dt.Rows.Count)
        return newdt;//源数据记录数小于等于要显示的记录，直接返回dt

    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;
}

//第二种方式

public DataRow[] GetTableRows(DataTable dtAllEas, int PageIndex,int PageSize)
{
　　var rows = dtAllEas.Rows.Cast();
　　var curRows = rows.Skip(PageIndex).Take(PageSize).ToArray();　　
}