Update README.md

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@ -117,3 +117,41 @@ var result = queryable.ToListAsync().Result;
var first = result.FirstOrDefault() as Author; var first = result.FirstOrDefault() as Author;
Assert.AreEqual(first?.FirstName, "David"); Assert.AreEqual(first?.FirstName, "David");
``` ```
### How it can be used in a web api
```csharp
[HttpGet][Route("FindClients")]
public IHttpActionResult FindClients(string filterField = null, string filterValue = null, string sortProperty = "Id", int? page = null, int pageSize = 50)
{
var ctx = new MyDbContext();
var query = ctx.Clients.AsQueryable();
if (!string.IsNullOrEmpty(filterField) && !string.IsNullOrEmpty(filterValue))
query = query.Query(t => t.Contains(filterField, filterValue)).OrderBy(sortProperty);
// count.
var clientCount = query.Count();
int? pages = null;
if (page.HasValue && pageSize > 0)
{
if (clientCount == 0)
pages = 0;
else
pages = clientCount / pageSize + (clientCount % pageSize != 0 ? 1 : 0);
}
if (page.HasValue)
query = query.Skip((page.Value-1) * pageSize).Take(pageSize);
var clients = query.ToList();
return Ok(new
{
total = clientCount,
pages = pages,
data = clients
});
}
```