sharepoint更新多行文本webparth

前台

<script>

    function Copy() {
        var value = document.getElementById("<%=BodyBox.ClientID %>").innerHTML;
        var real = value.replace(/<[^>]*>/g, "").replace(/&nbsp;/g, "").replace(/\s+/g, "");
        if (real == "") {
            //alert("real is null");
            document.getElementById("<%=BodyBox2.ClientID %>").value = "";
        }
        else {
            //alert("real is not null: "+real)
            document.getElementById("<%=BodyBox2.ClientID %>").value = value;
        }
    }

</script>

<div runat="server" class="ms-rtestate-field ms-rtefield">
        <div id="BodyBox" runat="server" contenteditable="true"
            class="ms-rtestate-write ms-rteflags-0 ms-rtestate-field" role="textbox" aria-autocomplete="both"
            aria-haspopup="true" aria-multiline="true">
        </div>
</div>

<div><asp:Button ID="Button1" runat="server" Text="更新多行文本" OnClientClick="Copy()" OnClick="Button1_Click" /></div>

<textarea id="BodyBox2" runat="server"></textarea>

后台

    protected void Button1_Click(object sender, EventArgs e)
        {

            string value = BodyBox2.Value;
            genggai();

        }
        private void genggai()
        {
            SPListItem li = web.Lists["办理"].GetItemById(int.Parse(Page.Request["ID"]));//实例化要添加的列的值如果部署到别的列表里就更改test2这个列表名 

            SPListItemCollection listItems = web.Lists["办理"].Items;
            string value = BodyBox2.Value;

            foreach (SPListItem list in listItems)
            {
                if (list["标题"].ToString() == li["标题"].ToString())
                {
                    list["情况"] = value;

                    list.Update();
                }

            }

        }