创建ASP.Net表非常慢,有更好的解决方案吗？

Question

我有一个20.000行和15列的DataTable.我需要创建一个ASP.Net表,我的代码与此类似:

//foreach Row in my DataTable do the following:


     TableRow t2Row = new TableRow();

                    TableCell t2Cell0 = new TableCell(); t2Cell0.Text = Count.ToString(); t2Row.Cells.Add(t2Cell0);
                    TableCell t2Cell1 = new TableCell(); t2Cell1.Text = dr["col1"].ToString(); t2Row.Cells.Add(t2Cell1);
                    TableCell t2Cell3 = new TableCell(); t2Cell3.Text = dr["col2"].ToString(); t2Row.Cells.Add(t2Cell3);
                    TableCell t2Cell2 = new TableCell(); t2Cell2.Text = dr["col3"].ToString(); t2Row.Cells.Add(t2Cell2);
                    TableCell t2Cell4 = new TableCell(); t2Cell4.Text = dr["col4"].ToString(); t2Row.Cells.Add(t2Cell4);
                    TableCell t2Cell5 = new TableCell(); t2Cell5.Text = ""; t2Row.Cells.Add(t2Cell5);
                    t2Cell5.ColumnSpan = 4;
                    TableCell t2Cell9 = new TableCell(); t2Cell9.Text = convertMinToTime(dr["col6"].ToString(), dr["col7"].ToString()); t2Row.Cells.Add(t2Cell9);
                    TableCell t2Cell10 = new TableCell(); t2Cell10.Text = dr["col8"].ToString(); t2Row.Cells.Add(t2Cell10);
                    TableCell t2Cell11 = new TableCell(); t2Cell11.Text = dr["col9"].ToString(); t2Row.Cells.Add(t2Cell11);
                    TableCell t2Cell12 = new TableCell(); t2Cell12.Text = dr["col10"].ToString(); t2Row.Cells.Add(t2Cell12);
                    TableCell t2Cell13 = new TableCell(); t2Cell13.Text = dr["col11"].ToString(); t2Row.Cells.Add(t2Cell13);

Table my_Table= new Table();
my_Table.Rows.Add(t2Row);

这段代码工作得很慢,有没有办法加快这个？

Answer 1

您可以使用Repeater并在ItemTemplate中添加<tr>必要<td>的.

首先检查是否真的是占用大量时间的表的构建.我的猜测是,对于一个包含20.000行和15列的表来说,传输和呈现HTML代码会降低速度.