获取当前sharepoint站点集中的登录用户及在workflow里获取当前登录用户

 1.获得当前用户

SPUser spuser = Microsoft.SharePoint.WebControls.SPControl.GetContextWeb(Context).CurrentUser;
           

SPUser currentUser = Microsoft.Sharepoint.SPContext.Current.Web.CurrentUser
           

2.获得当前站点集

SPUser spuser = Microsoft.SharePoint.WebControls.SPControl.GetContextSite();
           

3.spsite与spweb

spsite是服务器场上的站点集合，包括顶级站点和所有的子站点。

spweb是一个web站点，在大多数时候，是通过SPWeb对象来获取其他各种对象模型。SPWeb下包含有丰富的对象模型，包括几大部分：列表、文件系统、用户权限系统等。

http://wystec.blog.163.com/blog/static/296144472009630115746720/

　第一种方法：

以下是代码片段： System.Web.HttpContext.Current.User.Identity.Name.ToString();

　　这种方法不用获取当前的Site和Web信息，是全局使用的帐号信息。此方法获取的帐号信息是带域的。

　　第二种方法：

以下是代码片段： string username = ""; 　　SPSite site = new SPSite("http://kf102"); 　　SPWeb web = site.OpenWeb(); 　　username = web.CurrentUser.LoginName.ToString();

　　这种方法可以获取指定站点指定网站下的当前登录的用户名。

http://winsystem.ctocio.com.cn/85/11664585.shtml

in infopath vsta code:

//string currentUser = System.Web.HttpContext.Current.User.Identity.Name.ToString();


//SPUser spuser = Microsoft.SharePoint.WebControls.SPControl.GetContextWeb(SPContext).CurrentUser;


SPUser spuser = SPContext.Current.Web.CurrentUser;//.Users[currentUser];


//SPUser spuser = SPContext.Current.Web.AllUsers[this.Application.User.LoginName];
           

get SPUser from Login Name string

SPWeb web = SPContext.Current.Web;

 

SPUser user=web.EnsureUser("loginname");
           

1. Issue:Can't get object SPUser with code behind people picker inInFopath anyway check .

currentWeb.EnsureUser(userName);

currentWeb.AllUsers[userName];

Whole 2 method are Exception .

3. Solution:

1. Add reference to dll microsoft.office.workflow.tasks (search ở C )

2. using function under to getobject SPUser from data input is login name (ex: fsdn\vinhtv; vinhtv-g5\admin..)

/// 
/// Gets the user.
/// 
/// The web.
/// Name of the user.
/// 
public SPUser GetUser(SPWeb web, string userName)
{
SPUser newUser = null;

try
{
SPSecurity.RunWithElevatedPrivileges(delegate
{
using (SPSite site = new SPSite(web.Site.ID, web.Site.SystemAccount.UserToken))
{
using (SPWeb currentWeb = site.OpenWeb())
{
Contact contact = Contact.FromName(userName, currentWeb);

// if wthe user has already accessed teh site then id will be >=0
if (contact.PrincipalID < 0)
{
currentWeb.AllowUnsafeUpdates = true;

SPPrincipal p = contact.GetPrincipal(currentWeb);
}

newUser = currentWeb.SiteUsers[contact.LoginName];
currentWeb.AllowUnsafeUpdates = false;
}
}
});
}
catch (Exception ex)
{
throw ex;
}

return newUser;
} 
           

OnTaskChanged事件参数可以取的当前用户

SPUser currentUser = workflowProperties.Web.AllUsers[e.Identity];