Show link based on user permission

Question

hello ,
i have a user control that display a simple link to a list and i would like to show link only for users who have access to the list.
if the user has not access to list , he should no see the link.
How to reach my goal ? 
Thanks

Answer 1

You can use JavaScript client object model code to check the permissions of the user on the list. Specifically, you will need to check for viewListItems permissions. Here is a smple code to get permissions of the user on the list.
Note that this code will retrieve the current user's permissions. 
var list
function getUserPermissions() {
var clientContext = SP.ClientContext.get_current();
list = clientContext.get_web().get_lists().getByTitle('L5'); clientContext.load(list, 'EffectiveBasePermissions'); clientContext.executeQueryAsync(onQuerySucceeded, onQueryFailed);}
function onQuerySucceeded() {
if(list.get_effectiveBasePermissions().has(SP.PermissionKind.viewListItems)) {
//Show link
else {
//Don't show link
function onQueryFailed(sender, args) {   
alert('Request failed. ' + args.get_message() +  '\n' + args.get_stackTrace());
SP.SOD.executeFunc('sp.js', 'SP.ClientContext',getUserPermissions);
However, if you are comfortable with Server side object model code, you can use:
var currentUser = SPContext.Current.Web.User;
SPList.DoesUserHavePermissions(currentUser, SPBasePermissions.ViewListItems);
See this for more information: http://www.mindfiresolutions.com/Checking-current-users-permission-on-a-SharePoint-list-using-C-1642.php
Nadeem Yousuf