Group Row based on Multiple related records to show single record

Add following expression:
=Microsoft.VisualBasic.Strings.Join(LookupSet(Fields!COurseActivtyiD.Value, Fields!COurseActivtyiD.Value, Fields!invigilator.Value, "DataSet1"), ", ")

Now Edit in row Group:

Get Record's User Security Roles in CRM 2015 using Javascript

Get Record's User Security Roles in CRM 2015 using Javascript

function GetUserRoles() {
    var roles = Xrm.Page.context.getUserRoles();

    for (var i = 0; i < roles.length; i++) {
        GetRole(roles[i]);
    }
}

function GetRole(roleid) {
    var serverUrl = Xrm.Page.context.getClientUrl();
    var oDataSelect = serverUrl + "/XRMServices/2011/OrganizationData.svc/RoleSet?$select=Name&$filter=RoleId eq guid'" + roleid + "'";

    var retrieveReq = new XMLHttpRequest();
    retrieveReq.open("GET", oDataSelect, false);
    retrieveReq.setRequestHeader("Accept", "application/json");
    retrieveReq.setRequestHeader("Content-Type", "application/json;charset=utf-8");
    retrieveReq.onreadystatechange = function () {
        GetRoleData(this);
    };
    retrieveReq.send();
}

function GetRoleData(retrieveReq) {
    if (retrieveReq.readyState == 4) {
        if (retrieveReq.status == 200) {
            var retrieved = JSON.parse(retrieveReq.responseText).d;
            if(retrieved.results[0].Name="System Administrator")
            {
            Xrm.Page.getAttribute("cms_showdialogbutton").setValue(0);
            }
            else
            {
            Xrm.Page.getAttribute("cms_showdialogbutton").setValue(1);
            }
            alert(retrieved.results[0].Name);//Security Role Name
        }
    }
}

Get Current Login User Security Role Name in CRM 2015 using javascript

 Get Current Login User Security Role Name in CRM 2015 using javascript

function CheckUserRole() {
    var currentUserRoles = Xrm.Page.context.getUserRoles();
    for (var i = 0; i < currentUserRoles.length; i++) {
         var userRoleId = currentUserRoles[i];
    var userRoleName = GetRoleName(userRoleId);
           alert(userRoleName );// Security role name popout
    }
    return false;
}

//Get Rolename based on RoleId
function GetRoleName(roleId) {
    //var serverUrl = Xrm.Page.context.getServerUrl();
    var serverUrl = location.protocol + "//" + location.host + "/" + Xrm.Page.context.getOrgUniqueName();
    var odataSelect = serverUrl + "/XRMServices/2011/OrganizationData.svc" + "/" + "RoleSet?$filter=RoleId eq guid'" + roleId + "'";
    var roleName = null;
    $.ajax(
        {
            type: "GET",
            async: false,
            contentType: "application/json; charset=utf-8",
            datatype: "json",
            url: odataSelect,
            beforeSend: function (XMLHttpRequest) { XMLHttpRequest.setRequestHeader("Accept", "application/json"); },
            success: function (data, textStatus, XmlHttpRequest) {
                roleName = data.d.results[0].Name;
            },
            error: function (XmlHttpRequest, textStatus, errorThrown) { alert('OData Select Failed: ' + textStatus + errorThrown + odataSelect); }
        }
    );
    return roleName;
}