Checks users Exists in user group or not?

Question

Hi All,
bool userExsists = SPContext.Current.Web.CurrentUser.Groups.Cast<SPGroup>().Any(g => g.Name.ToLower() == "groupname".ToLower());
Is there ay alternative for findings that user is in group or not? Is it best way to achieve this?

Answer 1

Hi,
To check if a user exists in user group, please use the code below:
string userName = "contoso\\admin";//your user account
string groupName = "SP Members";// your user group
using (SPSite spSite = new SPSite("http://sp")) // your site collection URL
using (SPWeb spWeb = spSite.OpenWeb())
SPUser user = spWeb.EnsureUser(userName);
if (user.Groups.Cast<SPGroup>().Any(g => g.Name.Equals(groupName)))
Console.WriteLine("User " + userName + " is a member of group " + groupName);
else
Console.WriteLine("User " + userName + " is NOT a member of group " + groupName);
Or you can use PowerShell command below:
$w = get-spweb http://my
$gs = $w.SiteGroups
$g = $gs[12]
$user = $g.Users.GetByEmail("[email protected]")
if($user -eq $null){write-host "User Not Found"}
Best regards.
Thanks
Victoria Xia
TechNet Community Support