asp.net <asp:Repeater>下的 asp:LinkButton CommandArgument点击事件

<asp:Repeater ID="rptData" runat="server"  OnItemCommand="rptData_ItemCommand">
<ItemTemplate>
<tr id="trRemark" <%# Container.ItemIndex%2==0?"class=\"even\"":" class=\"odd\"" %>>
<td>
<%# ReturnDescption(Eval("CaseState").ToString())%>
</td>
<td class="last">

<asp:LinkButton CommandArgument='<%#Eval("ID") %>' Text="审核" class="down_btn" id="checkbtns" CommandName="checkbtn" style="cursor: pointer;" runat="server" />

<a class="down_btn" id="userRegistQues" style="cursor: pointer;" onclick="ReturnCase(<%#Eval("ID") %>)" >退回</a>
<a class="down_btn" id="userRole" style="cursor: pointer;">转交</a>
</td>
</tr>
</ItemTemplate>
</asp:Repeater>

protected void rptData_ItemCommand(object source, RepeaterCommandEventArgs e)
{
if (e.CommandName.ToString() == "checkbtn")
{
string ID = (e.CommandArgument).ToString();

string medicalcaseInfoId = ID;
int i = medicalcaseselectinfoBLL.UpdateAuditStateByMedicalcaseId(medicalcaseInfoId);

if (i > 0)
{
JavascriptFun("alert('审核通过！');window.location.href='../Medicalcaseauditing/MedicalcaseauditList.aspx'");
}
else
{
JavascriptFun("alert('审核不通过！');window.location.href='../Medicalcaseauditing/MedicalcaseauditList.aspx'");
}
}
}