ASP.NET GridView手动控制行数

最近项目中需要gridview动态生成行数，最后解决办法如下： 

 ICollection CreateDataSource()
  {
    System.Data.DataTable dt = new System.Data.DataTable();
    System.Data.DataRow dr;
    dt.Columns.Add(new System.Data.DataColumn("AAA", typeof(System.String)));
    dt.Columns.Add(new System.Data.DataColumn("BBB", typeof(System.String)));
    dt.Columns.Add(new System.Data.DataColumn("CCC", typeof(System.Decimal)));
    dt.Columns.Add(new System.Data.DataColumn("DDD", typeof(System.Decimal)));

    for (int i = 0; i < 10; i++)
    {
      System.Random rd = new System.Random(Environment.TickCount * i); ;
      dr = dt.NewRow();
      dr[0] = "TEST" + i.ToString();
      dr[1] =  i.ToString();
            dt.Rows.Add(dr);
    }
    System.Data.DataView dv = new System.Data.DataView(dt);
    return dv;
  }

    int TotalRowCount = 12;
  // 自动填充行数
  int numCount = 0;
  protected void Page_Load(object sender, EventArgs e)
  {
    if (!Page.IsPostBack)
    {
        GridView1.DataSource = CreateDataSource();
      GridView1.DataBind();
    }
  }

  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
  {
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
      numCount++;
    }
    if (e.Row.RowType == DataControlRowType.Footer)
    {
      int toLeft = TotalRowCount - numCount;
      int numCols = GridView1.Rows[0].Cells.Count;

      for (int i = 0; i < toLeft; i++)
      {
        GridViewRow row = new GridViewRow(-1, -1, DataControlRowType.EmptyDataRow, DataControlRowState.Normal);
        for (int j = 0; j < numCols; j++)
        {
          TableCell cell = new TableCell();
          cell.Text = " ";
          row.Cells.Add(cell);
        }
        GridView1.Controls[0].Controls.AddAt(numCount + 1 + i, row);
      }
    }
  }