Microsoft Techies: October 2016

Tuesday 18 October 2016

cannot convert system collections generic list to type system.web.http.IHttpActionResult web

Your return value is not in right type...
Refer below samples...I am using Item class, which is having 3 properties
public class Item
{
public int Id { get; set; }
public string Name { get; set; }
public double Price{ get; set; }
}
---------------------------------------------------------------

private IEnumerable<Item> items = new List<Item>()
{
new Item{Id=1,Name="Item1",Price=20.1},
new Item{Id=2,Name="Item2",Price=20.2},
new Item{Id=3,Name="Item3",Price=20.3}
};
public IHttpActionResult Get()
{
return Ok(items);
}
public IHttpActionResult Get(int iid)
{
return Ok(items.Where(x => x.Id == iid));
}
--------------------------------------------------------------
or
--------------------------------------------------------------
public IEnumerable<Item> Get()
{
return items.ToList();
}
public IHttpActionResult Get(int id)
{
var vitem=items.Where(x => x.Id == id);
if(vitem==null)
{
return NotFound();
}else
{
return Ok(vitem);
}
}