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;
　

    }

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' />"; 

}

------解决方案--------------------
    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(i