Question

I have the following code that I have been working on:

var menuItems = _contentRepository.GetPk("01" + pk + "000")
    .OrderBy(m => m.Order)
    .Select(m => new Menu.Item
    {
        PartitionKey = m.PartitionKey,
        RowKey = m.RowKey,
        Order = m.Order,
        Title = m.Title,
        Type = m.Type,
        Link = m.Link,
        TextLength = m.TextLength
    });

One of the fields that is returned .GetPk is a field called Roles. This is a string field with contents that show the roles that can access each item of the menu. The data in the field looks like the following:

All 
All,Admin 
All,Admin, Super
Admin
Admin, Super

I have a string[] roles that is populated with the roles that a user has. If a user has one role then there’s one item in the string array, if a user has two roles there are two items. If the user has no role then the array is empty.

How can I make it so my select only returns a value if an entry in the string[] roles matches one of the words in my Roles field?

So far I have been doing some research and I found the following which does almost what I need. But how can I fit this into my Linq above?

String[] roles = Roles.GetRolesForUser();
var links = from item in menus
    where item.Roles.Split(new String[] { "," }, StringSplitOptions.RemoveEmptyEntries)
    .Any(x => roles.Contains(x) || x == "All")
    select item;

Answer 1

Just include that condition in a Where clause before you Select the results into the form you need them.

var menuItems = _contentRepository.GetPk("01" + pk + "000")
.OrderBy(m => m.Order)
.Where(m => m.Roles.Split(",").Any(x => roles.Contains(x) || x == "All"))
.Select(m => new Menu.Item
{
    PartitionKey = m.PartitionKey,
    RowKey = m.RowKey,
    Order = m.Order,
    Title = m.Title,
    Type = m.Type,
    Link = m.Link,
    TextLength = m.TextLength
});