Create a ListItem method as array of strings c#

Question

I am having difficulties in the below question

How do I create the below ListItem method to return a array of string s?

public static List<ListItem> GetSelectedListItems(CheckBoxList _ddl)
{
    List<ListItem> GetData = new List<ListItem>();

    foreach (ListItem item in _ddl.Items)
    {
        if (item.Selected) GetData.Add(item);
    }

    return GetData;
}

Answer 1

Try

public static string[] GetSelectedListItems(CheckBoxList _ddl)
     {
     List<string> GetData = new List<string>();

     foreach (ListItem item in _ddl.Items)
     {
        if (item.Selected) GetData.Add(item.Text);
     }

     return GetData.ToArray();
    }

Answer 2

You have to use Enumerable.Cast because CheckBoxList.Items isn't a generic collection:

return _ddl.Items.Cast<ListItem>().Where(i => i.Selected).ToList();

If you want to return string[] of all selected items:

return _ddl.Items.Cast<ListItem>().Where(i => i.Selected).Select(i => i.Text).ToArray();