wpf/sliverlight EXCEL数据复制粘贴到dateagrid中

private void grid_KeyDown(object sender, KeyEventArgs e) 

{

 if (ModifierKeys.Control == Keyboard.Modifiers && e.Key == Key.V)
    {

 string str = System.Windows.Clipboard.GetText();//获取剪切板数据
            //  数据载体 data = new 数据载体();
            if (string.IsNullOrEmpty(str.Trim()) == false)
            {
                string[] rows = str.Split('\n');//分行
                int colIndex = 0;
                int r = 0;
                int c = 0;
                //循环行
                foreach (var item in rows)
                {
                    string[] cols = item.Split('\t');//分列
                    if (!string.IsNullOrEmpty(item))
                    {
                        if (colIndex + c == 0)
                        {
                            //data.XXX=colStr
                        }
                        else if (colIndex + c == 1)
                        {
                            //ata.YYY=colStr
                        }
                    }
                }
            }
            //  list.Add(data);
            //绑定datagrid

    }

}