SharePoint 2010 – Check if user in a specific group using Client Object Model


This post is just a modification of the solution provided by Vadim Gremyachev for SharePoint 2013 here. I’ve modified the code to work with SharePoint 2010 (since getByName() is not available in SP 2010)

function IsCurrentUserMemberOfGroup(groupName, OnComplete) {
 try{
    var context = new SP.ClientContext.get_current();
    var currentWeb = context.get_web();
 
    var currentUser = context.get_web().get_currentUser();
    context.load(currentUser);
 
    var allGroups = currentWeb.get_siteGroups();
    context.load(allGroups);
 
    context.executeQueryAsync(
       function(sender, args){
          var count = allGroups.get_count();
          for(i = 0; i < count; i++){
             var grp = allGroups.getItemAtIndex(i);
             //provide your group name
             if(grp.get_loginName() == groupName){
                var groupUsers = grp.get_users();
                //load users of the group
                context.load(groupUsers);
                context.executeQueryAsync(
                   function(sender2, args2){
                      var userInGroup = false;
                      var groupUserEnumerator = groupUsers.getEnumerator();
                      while (groupUserEnumerator.moveNext()) {
                         var groupUser = groupUserEnumerator.get_current();
                         //check if current user is in the group members
                         if (groupUser.get_id() == currentUser.get_id()) {
                            userInGroup = true;
                            break;
                         }
                      }
                      OnComplete(userInGroup);
                   },
                   function onFailureGrp(sender2, args2){
                      OnComplete(false);
                   }
               );
            }
         }
       },
       function onFailure(sender, args){
          OnComplete(false);
       }
    );
 }
 catch(e){
    OnComplete(false);
 }
}

And this is how you the function should be invoked –

function IsCurrentUserAManager() 
{
		try{
			IsCurrentUserMemberOfGroup("Managers", function (isCurrentUserInGroup) {
				if(!isCurrentUserInGroup)
				{
				    //user in group		    
				}
			});
		}
		catch(e){			
		}		
}

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