js 动态生成 table的有关问题

js 动态生成 table的问题
我想问一下,我用js动态生成的table里面为什么不能放控件啊,如 input,或是asp.net的控件,难道不能放吗?
我的方法如下:

JScript code

 function CreateTable(ds)    {     　 var maxRow =8;　 var maxCol = 3;　    var aaa="test";　 var strTbody ="<table <tbody>";　　strTbody+="<tr>";　　 for(var j = 0; j < maxCol; j++)　　 {    　　  strTbody+="<td><input id=\"txt"+i+"\" type =\"text\" value ="+aaa+" /></td>";　　　 　   }　  strTbody+="</tr>";　  strTbody+="</tbody></table>";　　 var obj = document.getElementById("tableDiv");　 obj.innerHTML = strTbody;　    }

JScript code

function addRow(){//添加一行var newTr = tableone.insertRow();//添加3列var newTd0 = newTr.insertCell();var newTd1 = newTr.insertCell();var newTd2 = newTr.insertCell();//设置列内容和属性newTd0.className = "LtableCopy";newTd0.height = "25";newTd0.align = "center";newTd0.innerHTML = "<input  type='text' name='pickname' />"; newTd1.className = "LtableCopy";newTd1.height = "25";newTd1.align = "center";newTd1.innerHTML = "<input  type='text'  name='pickrelationship'/>"; newTd2.className = "LtableCopy";newTd2.height = "25";newTd2.align = "center";newTd2.innerHTML = "<input  type='text'  name='picknumber' />"; }
[解决办法]
    Table t1 = new Table();

       TableRow[] trList = new TableRow[dtProtal.Rows.Count];

       for (int i = 0; i < dtProtal.Rows.Count; i++)
       {

           //添加第一列CheckBox
           CheckBox[] cbList = new CheckBox[dtProtal.Rows.Count];
           cbList[i] = new CheckBox();
           cbList[i].Text = dtProtal.Rows[i][2].ToString();
           cbList[i].ID = "cbID" + i;
           if (Convert.ToBoolean(dtProtal.Rows[i][3]))
           {
               cbList[i].Checked = true;
           }
           TableCell cellName = new TableCell();
           cellName.Controls.Add(cbList[i]);

           //添加第二列HtmlSelect
           HtmlSelect[] selectList = new HtmlSelect[dtProtal.Rows.Count];
           selectList[i] = new HtmlSelect();
           selectList[i].ID = "select" + i;
           selectList[i].Value = dtProtal.Rows[i][1].ToString();
           selectList[i].Attributes.Add("style", "width:80px;");
           selectList[i].Attributes.Add("runat", "server");

           ListItem itemL = new ListItem();
           itemL.Text = "左列";
           itemL.Value = "0";
           ListItem itemM = new ListItem();
           itemM.Text = "中列";
           itemM.Value = "1";
           ListItem itemR = new ListItem();
           itemR.Text = "右列";
           itemR.Value = "2";

           if (Convert.ToChar(dtProtal.Rows[i][1]) == '0')
               itemL.Selected = true;
           if (Convert.ToChar(dtProtal.Rows[i][1]) == '1')
               itemM.Selected = true;
           if (Convert.ToChar(dtProtal.Rows[i][1]) == '2')
               itemR.Selected = true;

           if (cbSystem.Checked)
               selectList[i].Items.Add(itemR);
           else
           {
               selectList[i].Items.Add(itemL); 
 
               selectList[i].Items.Add(itemM);
               selectList[i].Items.Add(itemR);
           }
           TableCell cellType = new TableCell();
           cellType.Controls.Add(selectList[i]);

           //添加第三列HiddenField列
           HiddenField[] hiddenList = new HiddenField[dtProtal.Rows.Count];
           hiddenList[i] = new HiddenField();
           hiddenList[i].ID = "hidden" + i;
           hiddenList[i].Value = dtProtal.Rows[i][4].ToString();
           TableCell cellHidden = new TableCell();
           cellHidden.Controls.Add(hiddenList[i]);

           //实例化row，添加列
           trList[i] = new TableRow();
           trList[i].Controls.Add(cellName);
           trList[i].Controls.Add(cellType);
           trList[i].Controls.Add(cellHidden);
           t1.Controls.Add(trList[i]);
       }
       Panel1.Controls.Add(t1);