public void BuildContainExpression()
{
//Arrange
List <Person> people = FakeData.People();
Expression <Func <Person, bool> > express = PredicateBuilder.BuildContains <Person>("FirstName", "Du");
Func <Person, bool> func = express.Compile();
string format = express.ToString();
var result = people.Where(func);
var expectedResult = people.Where(p => p.FirstName.ToLower().Contains("du"));
Assert.That(result.Count(), Is.EqualTo(expectedResult.Count()));
}
public static IQueryable <T> SearchContain <T>(IQueryable <T> source, string propertyName, string phrase)
{
Expression <Func <T, bool> > express = PredicateBuilder.BuildContains <T>(propertyName, phrase);
return(source.Where(express.Compile()).AsQueryable());
}