如何在我的ListView中删除一个项目

我想在我的asp.net ListView中删除一个条目，它不与我的代码一起工作。

我代码:

protected void ListView_ItemCommand(object sender, ListViewCommandEventArgs e)
        {
            if (e.CommandName == "Delete")
            {
                int index = Convert.ToInt32(e.CommandArgument);
                int listcount = ListView.Items.Count;
                if (listcount - 1 == index)
                {
                    ListView.Items.RemoveAt(index); //go do ListView_Deleting 
                }
            }
        }
        protected void ListView_SelectedIndexChanging(object sender, EventArgs e)
        {
            //
        }
        protected void ListView_Deleting(object sender, EventArgs e)
        {
            //
        }

我的aspx

:

 <div class="InputControlBox">
            <asp:ListView ID="ListView" runat="server" OnItemCommand="ListView_ItemCommand"
            OnSelectedIndexChanging="ListView_SelectedIndexChanging" OnItemDeleting="ListView_Deleting">
                <LayoutTemplate>
                    ...
                </LayoutTemplate>
                <ItemTemplate>
                  ...
                </ItemTemplate>
            </asp:ListView>
        </div>

错误在哪里?

if (e.CommandName == "Delete")
        {
            int index = Convert.ToInt32(e.CommandArgument);
            int listcount = ListView.Items.Count;
            if (listcount - 1 == index)
            {
                dataTable.Rows[index].Delete();
                ListView.datasource = datatable;
                ListView.DataBind();
            }
        }