private void button3_Click(object sender, EventArgs e)
{
Bar[] ba = new Bar[] { new Bar {
User = "******", Money = 1000
},
new Bar {
User = "******", Money = 2000
},
new Bar {
User = "******", Money = 3000
} };
/*
* var l = ba.AsQueryable<Bar>().Where("User==@0", "A");
*/
// filter: Money>1500
var filter = CriteriaOperator.Parse("[Money]>1500");
// get expression's body: bar.Money>1500
var converter = new CriteriaToExpressionConverterForObjects();
ParameterExpression pe = Expression.Parameter(typeof(Bar), "bar");
var expPredicateBody = converter.Convert(pe, filter);
// get lambda expression: bar => bar.Money>1500
LambdaExpression lambda = Expression.Lambda <Func <Bar, bool> >(expPredicateBody, new ParameterExpression[] { pe });
Console.WriteLine(lambda.Compile().DynamicInvoke(ba[1]));
}
private void button1_Click(object sender, EventArgs e)
{
Bar[] ba = new Bar[] { new Bar {
User = "******", Money = 1000
},
new Bar {
User = "******", Money = 2000
},
new Bar {
User = "******", Money = 3000
} };
/*
* var l = ba.AsQueryable<Bar>().Where("User==@0", "A");
*/
var converter = new CriteriaToExpressionConverterForObjects();
var l = ba.AsQueryable <Bar>().AppendWhere(converter, CriteriaOperator.Parse("[Money]>1500")).Cast <Bar>();
foreach (var b in l)
{
Console.WriteLine(b.User + " " + b.Money);
}
}
