public Expression <Func <User, bool> > BuildExpression()
{
Expression <Func <User, bool> > expression = u => true;
if (!Email.IsEmpty())
{
expression = expression.And(u => u.Email.Contains(Email));
}
if (!Login.IsEmpty())
{
expression = expression.And(u => u.Login.Contains(Login));
}
if (!DisplayName.IsEmpty())
{
expression = expression.And(u => u.DisplayName.Contains(DisplayName));
}
return(expression);
}
