使用pubsite上的webpart读取顶部的列表

Question

我已创建SharePoint管理员列表，其中我为WebPart保存了各种各样的东西。 只有管理员可以阅读列表，我已经从其他人中删除了用户权限。

以下WebPart使用升高的权限读取列表。

Guid webID = SPContext.Current.Web.ID;
Guid siteID = SPContext.Current.Site.ID;
    SPSecurity.RunWithElevatedPrivileges(delegate()
    {
        using (SPSite site = new SPSite(siteID))
        {
        // List 'AdminList' does not exist at site with URL 'http://devmach/sites/Test/Subsite'.
            using (SPWeb web = site.AllWebs[webID])
            {
                SPList listsp = web.Lists["AdminList"];
                SPListItemCollection collListItems = listsp.Items;
                foreach (SPListItem itemsp in collListItems)
                {

. 但是，当我创建新子部分时，我将webpart添加到网站时，它不起作用，因为该子部分不包含“adminlist”。

我的问题是：

如果webpart在不同的页面上，我如何阅读列表？ 我需要做什么变化？

Answer 1

use open web, put in the site name for that web, so if i have:

SPSite/SPWeb

mysitecollection.com/mysubsite

it would be:

site.OpenWeb("mysubsite")

full code:

Guid siteID = SPContext.Current.Site.ID;
    SPSecurity.RunWithElevatedPrivileges(delegate()
    {
        using (SPSite site = new SPSite(siteID))
        {
        // List 'AdminList' does not exist at site with URL 'http://devmach/sites/Test/Subsite'.
            using (SPWeb web = site.OpenWeb("mysubsite"))
            {
                SPList listsp = web.Lists["AdminList"];
                SPListItemCollection collListItems = listsp.Items;
                foreach (SPListItem itemsp in collListItems)
                {

the code should only be used to retrive the list, if you want to use the list in many subsites than create it in the sitecollection rather than a subsite!

Guid siteID = SPContext.Current.Site.ID;
    SPSecurity.RunWithElevatedPrivileges(delegate()
    {
        using (SPSite site = new SPSite(siteID))
        {
        // List 'AdminList' does not exist at site with URL 'http://devmach/sites/Test/Subsite'.
            using (SPWeb web = site.OpenWeb())
            {
                SPList listsp = web.Lists["AdminList"];
                SPListItemCollection collListItems = listsp.Items;
                foreach (SPListItem itemsp in collListItems)
                {

first method advanced:

If its a requirement that you need the list within a subsite and need to access it within another subsite than this will do the trick:

get the list from the given subsite you have it on:

private SPList getlistFromSite(SPSite site)
{
                SPList listsp = null;
                using (SPWeb web = site.OpenWeb("mysubsite"))
                {
                    SPList listsp = web.Lists["AdminList"];
                }
                return listsp;
}

to use method above but keeping the current site the user is on!:

Guid webID = SPContext.Current.Web.ID;
Guid siteID = SPContext.Current.Site.ID;
SPSecurity.RunWithElevatedPrivileges(delegate()
{
    using (SPSite site = new SPSite(siteID))
    {
        using (SPWeb web = site.AllWebs[webID])
        {
            SPList listsp = getlistFromSite(site);
            SPListItemCollection collListItems = listsp.Items;
            foreach (SPListItem itemsp in collListItems)
            {
                //loop
            }
        }
    }
});

Answer 2

You have to know the website that contains AdminList.

Here are two ways to go:

1. Create AdminList in the root web of the site collection and then in your code get the webID of the root web

   Guid webID = SPContext.Current.Site.RootWeb.ID;
   Guid siteID = SPContext.Current.Site.ID;
   SPSecurity.RunWithElevatedPrivileges(delegate()
   {
       using (SPSite site = new SPSite(siteID))
       {
           using (SPWeb web = site.OpenWeb(webID))
           {
               SPList listsp = web.Lists["AdminList"];
               SPListItemCollection collListItems = listsp.Items;
               foreach (SPListItem itemsp in collListItems)
               {
   

2. Add custom property to you webpart so you can set the Url of the list in the webpart's property pane, and use that property in your code to get the list.

   http://msdn.microsoft.com/en-us/library/dd584174(v=office.11).aspx http://zimmergren.net/technical/how-to-custom-web-part-properties-toolpart