问动态创建处于Gridview丢失状态的RadioButtons

EN

protected void TheGridView_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        [...]
        foreach (DataControlFieldCell dc in e.Row.Cells)
        {
            switch (dc.ContainingField.ToString())
            {
                [...]
                case (_ColReview):
                    int status = int.Parse(dc.Text);

                    if (status == 0) 
                    {
                        dc.Text = "Not sent for review";
                    }
                    else
                    {
                        var comment = new TextBox();
                        comment.ID = "ReviewCommentTextBox";
                        comment.CssClass = "form-control";
                        comment.Width = 290;
                        dc.Controls.Add(comment);

                        var radioButtons = new RadioButtonList();
                        var rb = new ListItem();
                        if (status == 2) rb.Selected = true;
                        rb.Value = "2";
                        rb.Text = "Yes, Add to Watch List";
                        radioButtons.Items.Add(rb);

                        rb = new ListItem();
                        if (status == 3) rb.Selected = true;
                        rb.Value = "3";
                        rb.Text = "No, do not add to Watch List";
                        radioButtons.Items.Add(rb);

                        rb = new ListItem();
                        //initial value in database is 1, hence this will be initially selected
                        if (status == 1) rb.Selected = true;
                        rb.Value = "1";
                        rb.Text = "Skip: no decision";

                        radioButtons.ID = "RowRadioButtonList";
                        radioButtons.Items.Add(rb);

                        dc.Controls.Add(radioButtons);
                    }
                    break;

            }
        }
    }
}



protected void BulkupdateLinkButton_Click(object sender, EventArgs e)
{
    foreach(GridViewRow gvr in TheGridView.Rows)
    {
        [...]
        int radioItemValue = 0;

        foreach (DataControlFieldCell dc in gvr.Cells)
        {
            string cellName = dc.ContainingField.ToString();
            string cellText = dc.Text;
            switch(cellName)
            {
                [...]
                case (_ColReview):
                    TextBox tb = (TextBox)gvr.FindControl("ReviewCommentTextBox");
                    comment = tb.Text;
                    RadioButtonList rbl = (RadioButtonList)gvr.FindControl("RowRadioButtonList");
                    foreach(ListItem li in rbl.Items)
                    {
                        //Issue arrives here: selected item is reset on postback, value is always 1
                        if (li.Selected)
                        {
                            radioItemValue = ToolBox.ConvertToInt(li.Value);
                        }
                    }

                    break;
            }
        }
        if (!string.IsNullOrEmpty(comment) && (radioItemValue > 0))
        {
            if (radioItemValue != 1) // 1 = pending/skip
            {
                //code to add update the record and save the comment
                [...]
            }
        }



    }
}