public static void TestRef(People people)
{
PropertyInfo propertyInfo = people.GetType().GetProperty("Name");
propertyInfo.SetValue(people, "sl");
var name = propertyInfo.GetValue(people);
}
public static void TestExpression(People people)
{
PropertyInfo propertyInfo = people.GetType().GetProperty("Name");
ParameterExpression param = Expression.Parameter(typeof(People), "param");
Expression GetPropertyValueExp = Expression.Lambda(Expression.Property(param, "Name"), param);
Expression <Func <People, String> > GetPropertyValueLambda = (Expression <Func <People, String> >)GetPropertyValueExp;// (dog)=>dog.Name;
ParameterExpression paramo = Expression.Parameter(typeof(People), "param");
ParameterExpression parami = Expression.Parameter(typeof(String), "newvalue");
MethodCallExpression MethodCallSetterOfProperty = Expression.Call(paramo, propertyInfo.GetSetMethod(), parami);
Expression SetPropertyValueExp = Expression.Lambda(MethodCallSetterOfProperty, paramo, parami);
Expression <Action <People, String> > SetPropertyValueLambda = (Expression <Action <People, String> >)SetPropertyValueExp;//(dog,newvalue)=>dog.Name=newvalue;
//创建了属性Name的Get方法表达式和Set方法表达式,当然只是最简单的
Func <People, String> Getter = GetPropertyValueLambda.Compile();
Action <People, String> Setter = SetPropertyValueLambda.Compile();
Setter.Invoke(people, "sl");
var name = Getter.Invoke(people);
}
