dnn 模块 小代码集

1.获取模块的服务器端路径<%=TemplateSourceDirectory%>

2. 在模块中获取用户的ID 
UserInfo user = UserController.GetCachedUser(PortalController.GetCurrentPortalSettings().PortalId,                                     Context.User.Identity.Name);

3.需要登录才能访问的页面的处理。
前台ASPX：
<asp:Label runat="server" Visible="false" ID="tipLogin">该项服务需要登陆才能使用，请</asp:Label>
<asp:HyperLink runat="server" Visible="false" ID="hlLogin">登陆</asp:HyperLink>

后台C#：
if (!Request.IsAuthenticated)
{
        string returnUrl = HttpContext.Current.Request.RawUrl;
        if (returnUrl.IndexOf("?returnurl=") != -1)
        {
                returnUrl = returnUrl.Substring(0, returnUrl.IndexOf("?returnurl="));
        }
        returnUrl = HttpUtility.UrlEncode(returnUrl);
        if (PortalSettings.LoginTabId != -1 && Request.QueryString["override"] == null)
        {
                hlLogin.NavigateUrl = Globals.NavigateURL(PortalSettings.LoginTabId, "", "returnUrl=" + returnUrl);
        }
        else
        {
                if (PortalSettings.HomeTabId != -1)
                {
                        hlLogin.NavigateUrl = Globals.NavigateURL(PortalSettings.HomeTabId, "", "returnUrl=" + returnUrl);
                }
                else
                {
                        hlLogin.NavigateUrl = Globals.NavigateURL(PortalSettings.ActiveTab.TabID, "", "returnUrl=" + returnUrl);
                }
        }
        tipLogin.Visible = true;
        hlLogin.Visible = true;
        RadGrid1.Visible = false;
        return;
}