设置repeater每行多少个的方法

前台代码：

<asp:ScriptManagerProxy ID="ScriptManagerProxy1" runat="server"></asp:ScriptManagerProxy>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
    <ContentTemplate>
        <div style="width: 350px; float: left;">
            <asp:Literal ID="litVideo" runat="server"></asp:Literal><br />
            <asp:Repeater runat="server" ID="rptVideoName" OnItemDataBound="rptVideoName_ItemDataBound" OnItemCommand="rptVideoName_ItemCommand">
                <ItemTemplate>
                    <asp:LinkButton ID="lbVideoName" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"Title")%>' CommandName="PlayVideo" CommandArgument='<%# DataBinder.Eval(Container.DataItem,"ID")%>'></asp:LinkButton>
                </ItemTemplate>
            </asp:Repeater>
        </div>
    </ContentTemplate>
</asp:UpdatePanel>

后台代码：

//绑定repeater的个数，每行3个

protected void rptCategories_ItemDataBound(object src, RepeaterItemEventArgs e)
        {
            // Add <tr> for change row
            if ((e.Item.ItemIndex + 1) % 3 == 0)
            {
                e.Item.Controls.Add(new LiteralControl("</tr><tr>"));
            }
        }

//repeater相应单击事件

protected void rptVideoName_ItemCommand(object sender, RepeaterCommandEventArgs e)
        {
            if (e.CommandName == "PlayVideo")
            {
                BindVideoName();
                SPQuery query = new SPQuery();
                SPList list = SPContext.Current.Web.Lists[ListNames.CompanyPublicityVideo];
                SPListItem item = (new SharePointService()).GetItem(list, int.Parse(e.CommandArgument.ToString()));
                this.litVideo.Text = PlayVideo(item.Folder, "autoplay=''");
            }
        }