listview里的button事件添加方法

asp:ListView ID="lvBalance" runat="server" >
LayoutTemplate>
div id="listDiv" style="width:100%;overflow-y:auto;">
table border=0 cellpadding=0 cellspacing=0 style="float:left;table-layout:fixed;" class="datagrid-body easydatagrid">
asp:PlaceHolder id=itemPlaceholder runat=server/>
/table>
div id="div999" style='display: none; width: 200px;' class="div2">/div>
/div>
/LayoutTemplate>
ItemTemplate>
tr>td>
asp:LinkButton ID="lb_delete" runat="server" CommandArgument='%#Eval("ItemCode")%>' OnClientClick="return confirm('确定删除此条信息？');" onclick="lb_delete_Click" Text="删除">/asp:LinkButton>
/td>/tr>
/ItemTemplate>
/asp:ListView>

protected void lb_delete_Click(object sender, EventArgs e)
{
LinkButton lbdelete = (LinkButton)sender;
BLLAccount bll_updateBalance = new BLLAccount();
if (hd_vehiclecode.Value != "" lbdelete.CommandArgument != "")
{
if (bll_updateBalance.deleteBalance(hd_vehiclecode.Value, lbdelete.CommandArgument) == true)
{
this.ClientScript.RegisterStartupScript(this.GetType(), this.Title, "alert('删除成功!');", true);
Datebind();
}
else
{
this.ClientScript.RegisterStartupScript(this.GetType(), this.Title, "alert('删除失败!');", true);
}
}
}